Eemua-9010-Copper-Nickel-Alloy-Piping-For-Offshore-Applications-Specification-234-Publication

90/10 Copper nickel alloy piping for offshore applications Specification (Incorporating EEMUA 144, 145 and 146) Publication 234 Edition 1 Copyright © 2015 The Engineering Equipment and Materials Users Association. A company limited by guarantee. Registered in England. Company number 477838. All rights reserved. ISBN 978 0 85931 211 0 First published 11-2015 Imprint reference 03-2016 Registered and Trading Address: 63 Mark Lane, London, EC3R 7NQ Telephone: +44 (0)20 7488 0801 Fax: +44 (0)20 7488 3499 Email: sales@eemua.org Website: www.eemua.org Copyright EEMUA Copper nickel alloy piping for offshore applications Publication234 Engineering Equipment and Materials Users Association About EEMUA The Engineering Equipment and Materials Users Association is usually known by its initials, EEMUA. EEMUA is an Association established by the owners and operators of industrial assets. Any organisation that is a substantial user or substantial Purchaser of engineering products may apply to become a member of EEMUA. Membership is subject to the approval of Council. EEMUA aims EEMUA aims to improve the safety, environmental and operating performance of industrial facilities in the most cost-effective way, pursuing and promoting leadership in industrial asset management by sharing engineering experiences and expertise, and by the active, enlightened promotion of the distinct interests of users of engineering products. These aims are achieved by various means, including: • Providing the organisation within which networking, information sharing and collaboration among users on noncompetitive technical matters can take place. • Influencing the way written regulations are interpreted and applied in practice. • Promoting and presenting members’ views, and encouraging the application of good sound engineering practices. • Developing user guides, Specifications, training and competency schemes. • Facilitating members’ participation in national and international standards making. • Influencing relevant national and European legislation and regulation. II EEMUA Copyright The income and resources of EEMUA are applied solely towards the promotion of the aims of the Association. No profit is transferred by way of dividend, bonus or otherwise to members. The work of the Association is mainly carried out by members’ representatives on EEMUA Technical Committees, Working Groups, and Forums, supported by EEMUA staff. Incorporation, membership and other information For the purposes of conducting its business, EEMUA is incorporated in England and Wales as a company, limited by guarantee, not having share capital. All usual aspects of company management and business administration are dealt with through the EEMUA Chief Executive, including policy implementation and leadership of the Executive team (the staff). A list of EEMUA Publications for sale is given at the end of this Publication. The full list is also on the Association’s website, including details of on-line shopping facilities. To enquire about corporate Membership, write to ask@eemua.org or call +44 (0)20 7488 0801. Publication234 Copper nickel alloy piping for offshore applications About this Publication Legal aspects Consultation and feedback All rights, title and interest in this Publication belong to EEMUA. All rights are reserved. No part of this Publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means: electronic, mechanical, photocopying, recording or other, without the express prior written agreement of the EEMUA Chief Executive. Infringement of copyright is illegal and also reduces the Association’s income thereby jeopardising its ability to fund the production of future Publications. EEMUA encourages constructive comments on this Publication from both Members of the Association and others. It has been assumed in the preparation of this Publication that: the user ensures selection of those parts of its contents appropriate to the intended application; and that such selection and application is correctly carried out by appropriately qualified and competent persons for whose guidance this Publication has been prepared. EEMUA and the individual members of the Work Group that prepared this EEMUA Publication do not, and indeed cannot, make any representation or give any warranty or guarantee in connection with material contained herein. EEMUA and the individual members of the Work Group that prepared this EEMUA Publication expressly disclaim any liability or responsibility for damage or loss resulting from the use or reliance on this Publication. Any recommendations contained herein are based on the most authoritative information available at the time of writing and on current good engineering practice, but it is essential for the user to take account of pertinent subsequent developments and/or legislation. Comments should be sent on the standard feedback form, a copy of which is provided towards the end of this Publication. An electronic version of the feedback form is available from EEMUA - e-mail your request for a copy to ask@eemua.org, telephone your request to +44 (0)20 7488 0801, or download the form from the EEMUA website at www.eemua.org. Submit comments by e-mail (preferred) or post. Comments are considered by the relevant EEMUA Technical Committees and may be incorporated in future editions of this Publication. New editions are publicised on the EEMUA website. Any person who encounters an inaccuracy or ambiguity when making use of this Publication is asked to notify EEMUA without delay so that the matter may be investigated and appropriate action taken. Copyright EEMUA III Copper nickel alloy piping for offshore applications Publication234 Contents 1. Seamless tubes��1 1.1 Scope and design basis�� 1 1.2 Information to be supplied by the Purchaser �� 1 1.3 Freedom from defects �� 2 1.4 Materials and manufacture �� 2 1.5 Dimensions and tolerances �� 2 1.5.1 Outside diameter �� 2 1.5.2 Inside diameter �� 2 1.5.3 Ovality �� 2 1.5.4 Thickness �� 2 1.5.5 Length�� 2 1.5.7 Straightness �� 3 1.6 Selection of test samples �� 3 1.7 Mechanical tests �� 3 1.7.1 Mandatory tests �� 3 1.7.2 Supplementary tests �� 4 1.8 Retests �� 5 1.9 Hydraulic or eddy current tests (mandatory tests) �� 5 1.9.1 Hydraulic test �� 5 1.9.2 Eddy current test �� 5 1.10 Marking �� 5 1.11 Certification �� 6 2. Seam-welded tubes�� 11 2.1 Scope and design basis �� 11 2.2 Information to be supplied by the Purchaser �� 11 2.3 Freedom from defects �� 12 2.4 Materials and manufacture �� 12 2.5 Welding �� 12 2.5.1 Consumables �� 12 2.5.2 Welding procedure qualification �� 12 2.5.3 Welder qualification �� 12 2.6 Dimensions and tolerances �� 12 2.6.1 Outside diameter �� 12 2.6.2 Inside diameter �� 12 2.6.3 Ovality �� 12 IV EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications 2.6.4 Circularity (permissible deviation from circularity)�� 12 2.6.5 Thickness �� 13 2.6.6 Length �� 13 2.6.7 Squareness of ends �� 14 2.6.8 Straightness �� 14 2.7 Selection of test samples �� 14 2.8 Non-destructive testing �� 14 2.8.1 Liquid dye penetrant test �� 14 2.8.2 Radiography �� 14 2.9 Repairs to weld seams �� 14 2.10 Retest of repairs �� 14 2.11 Hydraulic test �� 14 2.12 Marking�� 15 2.13 Certification �� 15 3. Composite weld neck flanges�� 19 3.1 Scope and design basis �� 19 3.2 Pressure/temperature ratings �� 20 3.3.1 Flanges �� 20 3.3.2 Gaskets �� 20 3.4 Weld neck stub ends �� 20 3.4.1 Manufacture �� 20 3.4.2 Information to be supplied by the Purchaser �� 20 3.4.3 Freedom from defects �� 21 3.4.4 Joint facings and surface finish �� 21 3.4.5 Selection of test samples �� 21 3.4.6 Marking �� 21 3.4.7 Inspection and testing �� 22 3.4.8 Certification �� 22 3.5 Weld neck backing flanges �� 22 3.5.1 Manufacture �� 22 3.5.2 Information to be supplied by the Purchaser �� 22 3.5.3 Drilling �� 23 3.5.4 Facings and surface finish �� 23 3.5.5 Selection of test samples �� 23 3.5.7 Inspection and testing �� 23 3.5.8 Certification �� 24 3.5.9 Temporary corrosion protection �� 24 4. Composite slip-on flanges �� 31 4.1 Scope and design basis �� 31 Copyright EEMUA V Copper nickel alloy piping for offshore applications Publication234 4.2 Pressure/temperature ratings�� 31 4.3 Materials �� 32 4.3.1 Flanges �� 32 4.3.2 Gaskets �� 32 4.3.3 Bolting (stud bolts) �� 32 4.4 Slip-on stub ends �� 32 4.4.1 Manufacture �� 32 4.4.2 Information to be supplied by the Purchaser �� 32 4.4.3 Freedom from defects �� 32 4.4.4 Joint facings and surface finish �� 32 4.4.5 Selection of test samples �� 33 4.4.6 Marking�� 33 4.4.7 Inspection and testing �� 33 4.4.8 Certification �� 34 4.5. Slip-on backing flanges�� 34 4.5.1 Manufacture �� 34 4.5.2 Information to be supplied by the Purchaser �� 34 4.5.3 Drilling �� 34 4.5.4 Facings and surface finish �� 35 4.5.5 Selection of test samples �� 35 4.5.6 Marking �� 35 4.5.7 Inspection and testing �� 35 4.5.8 Certification �� 35 4.5.9 Temporary corrosion protection �� 35 5. Solid 90/10 copper nickel weld neck flanges �� 39 5.1 Scope and design basis �� 39 5.2 Pressure/temperature ratings �� 39 5.3 Materials �� 39 5.3.1 Flanges�� 39 5.3.2 Gaskets �� 39 5.3.3 Bolting �� 40 5.4 Manufacture �� 40 5.5 Information to be supplied by the Purchaser �� 40 5.6 Freedom from defects �� 40 5.7 Joint facings and surface finish �� 40 5.8 Selection of test samples �� 40 5.9 Marking �� 41 5.10 Inspection and testing �� 41 5.11 Certification �� 41 VI EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications 6. Solid 90/10 copper nickel slip-on flanges �� 47 6.1 Scope and design basis �� 47 6.2 Pressure/temperature ratings �� 47 6.3 Materials �� 47 6.3.1 Flanges �� 47 6.3.2 Gaskets �� 47 6.3.3 Bolting �� 47 6.4 Manufacture �� 48 6.5 Information to be supplied by the Purchaser �� 48 6.6 Freedom from defects �� 48 6.7 Joint facings and surface finish �� 48 6.8 Selection of test samples �� 48 6.9 Marking �� 48 6.10 Inspection and testing �� 49 6.11 Certification �� 49 7. 90/10 Cu Ni butt welding fittings�� 53 7.1 Scope and design basis �� 53 7.2 Information to be supplied by the Purchaser �� 53 7.3 Freedom from defects �� 53 7.4 Materials and manufacture �� 53 7.5 Welding �� 54 7.5.1 Consumables �� 54 7.5.2 Welding procedure qualification �� 54 7.5.3 Welder qualification �� 54 7.6 Selection of test samples �� 54 7.7 Non-destructive testing �� 54 7.7.1 liquid dye penetrant test �� 54 7.7.2 Radiography �� 54 7.8 Repairs to welded seams �� 54 7.9 Retests of repairs �� 54 7.10 Marking �� 55 7.11 Inspection and testing �� 55 7.12 Certification�� 56 8. 90/10 Cu Ni socket welding fittings�� 71 8.1 Scope and design basis �� 71 8.2 Information to be supplied by the Purchaser �� 71 8.3 Freedom from defects �� 71 8.4 Materials and manufacture �� 71 Copyright EEMUA VII Copper nickel alloy piping for offshore applications Publication234 8.5 Proof tests for adequacy of socket welding union type fittings (prototype test) �� 72 8.6 Marking �� 73 8.7 Inspection and testing �� 73 8.8 Certification �� 73 9. Copper alloy capillary brazing fittings �� 75 9.1 Scope and design basis �� 75 9.2 Information to be supplied by the Purchaser �� 75 9.3 Freedom from defects �� 75 9.4 Materials and manufacture �� 76 9.5 Proof tests for adequacy of capillary brazing union type fittings (prototype test) �� 76 9.6 Marking �� 77 9.7 Inspection and testing �� 77 9.8 Certification �� 77 10. Copper alloy flareless non-manipulative type compression fittings�� 79 10.1 Scope and design basis �� 79 10.2 Information to be supplied by the Purchaser �� 79 10.3 Freedom from defects�� 79 10.4 Materials and manufacture �� 80 10.5 Proof test for adequacy of compression fittings (prototype test) �� 80 10.6 Marking �� 81 10.7 Inspection and testing �� 81 10.8 Certification �� 81 11. Copper alloy threaded fittings�� 83 11.1 Scope and design basis �� 83 11.2 Information to be supplied by the Purchaser �� 83 11.3 Freedom from defects �� 84 11.4 Materials and manufacture �� 84 11.5 Marking �� 84 11.6 Inspection and testing �� 85 11.7 Certification �� 85 12. 90/10 Cu Ni self-reinforced branch connection fittings�� 89 12.1 Scope and design basis �� 89 12.2 Information to be supplied by the Purchaser �� 89 12.3 Pressure/temperature ratings �� 90 12.4 Freedom from defects �� 90 12.5 Materials and manufacture �� 90 12.6 Marking �� 90 VIII EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications 12.7 Inspection and testing �� 90 12.8 Certification �� 91 13. 90/10 Cu Ni saddle pieces �� 95 13.1 Scope and design basis �� 95 13.2 Information to be supplied by the Purchaser �� 95 13.3 Pressure/temperature ratings �� 95 13.4 Freedom from defects �� 95 13.5 Materials and manufacture �� 95 13.6 Welding �� 96 13.6.1 Consumables�� 96 13.6.2 Welding procedure qualification �� 96 13.6.3 Welder qualification �� 96 13.7 Selection of test samples �� 96 13.8 Non-destructive testing �� 96 13.8.1 Liquid dye penetrant test �� 96 13.8.2 Radiography �� 96 13.9 Repairs to weld seams �� 96 13.10 Retest of repairs �� 96 13.11 Marking �� 97 13.12 Inspection and testing �� 97 13.13 Certification �� 97 14. Discretionary contractual clauses �� 105 14.1Inspection ��105 14.1.1 General��105 14.1.2 Seamless tubes��105 14.1.3 Flanges��105 14.1.4 Fittings��105 14.2 Facilities for testing ��105 Appendix A �� 107 Appendix B �� 109 Appendix C �� 111 Appendix D �� 113 Appendix E �� 115 References �� 117 EEMUA Publication: feedback form �� 119 Copyright EEMUA IX Copper nickel alloy piping for offshore applications Publication234 EEMUA Publications Catalogue��120 Asset and integrity management��120 Automation and electrical equipment��120 Pressure equipment��121 Process pipework, valves and machinery��122 Storage and containment systems��122 Figures Figure 1 Flattening test�� 4 Figure 2 Double-bend test�� 4 Figure 3 Drifting test�� 4 Figure 4 Dimensions of welding ends on butt welding components�� 56 Figure 5 Guidance for the design of tees�� 57 Figure 6 .Welding dimensions required for socket welding fittings�� 72 Figure 7 Dimensions of welding ends on butt welding saddle pieces�� 98 Figure 8 Saddle pieces - seamless�� 98 Figure 9 Saddle pieces - seam welded��102 Tables Table 1 Minimum random lengths for seamless tubes�� 2 Table 2 Tolerances on lengths for seamless tubes�� 3 Table 3 Dimensions of seamless 90/10 Cu/Ni tubes: 16 bar rating�� 7 Table 4 Dimensions of seamless 90/10 Cu/Ni tubes 20 bar rating�� 8 Table 5 Chemical composition and mechanical properties of seamless 90/10 copper/nickel tubes�� 9 Table 6 Minimum random lengths for seam-welded tubes�� 13 Table 7 Tolerances on lengths for seam-welded tubes�� 13 Table 8 Dimensions of seam-welded 90/10 Cu Ni tubes: 16 bar rating�� 16 Table 9 Dimensions of seam-welded 90/10 Cu Ni tubes: 20 bar rating�� 17 Table 10 .Chemical composition and mechanical properties of seam-welded 90/10 Cu Ni tubes�� 18 Table 11 Surface finish (weld neck stub ends)�� 21 Table 12 .Weld neck 90/10 Cu Ni stub ends: 16 bar rating�� 25 Table 13 .Weld neck 90/10 Cu Ni stub ends: 20 bar rating�� 26 Table 14 Weld neck blanking flanges: Class 150�� 27 Table 15 Tolerances: weld neck stub ends�� 28 Table 16 Tolerances: backing flanges�� 29 Table 17 .Chemical composition and mechanical properties for wrought 90/10 Cu Ni weld-neck stub ends�� 30 Table 18 .Chemical composition and mechanical properties for carbon steel backing flanges�� 30 Table 19 Surface finish (Slip-on stub ends)�� 33 Table 20 Slip-on 90/10 Cu Ni stub ends 20 bar�� 36 X EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Table 21 .Steel backing flanges for use with 90/10 Cu Ni slip-on stub-ends: Class 150�� 37 Table 22 Tolerances: slip-on stub ends�� 37 Table 23 Tolerances: steel backing flanges�� 38 Table 24 .Chemical composition and mechanical properties for wrought 90/10 Cu Ni slip on stub-ends�� 38 Table 25 .Chemical composition and mechanical properties for carbon steel backing flanges�� 38 Table 26 .Surface finish (solid weld neck flanges)�� 40 Table 27 .Solid 90/10 Cu Ni weld neck flanges: 16 bar �� 42 Table 28 .Solid 90/10 Cu Ni weld neck flanges: 20 bar�� 43 Table 29 .Tolerances: solid 90/10 Cu Ni weld neck flanges�� 44 Table 30 .Chemical composition and mechanical properties for solid wrought 90/10 Cu Ni weld neck flanges�� 45 Table 31 Surface finish (solid slip-on flanges)�� 48 Table 32 Solid 90/10 Cu Ni slip-on flanges�� 50 Table 33 .Tolerances: solid 90/10 Cu Ni slip-on flanges�� 51 Table 34 .Chemical composition and mechanical properties for solid wrought 90/10 Cu Ni slip-on flanges�� 51 Table 35 .Dimensions of welding ends for all butt welding components �� 58 Table 36 .Dimensions of welding ends for all butt welding components�� 59 Table 37 Tolerances – fittings�� 60 Table 38 Dimensions of long radius elbows �� 61 Table 39 .Intrados thickness of long radius elbows. �� 62 Table 40 Dimensions of straight (equal) tees�� 63 Table 41 .Dimensions of reducing outlet tees - sizes up to 159 x 159 x 108. �� 64 Table 42 Dimensions of reducing outlet tees �� 65 Table 43 Dimensions of reducing outlet tees �� 66 Table 44 Dimensions of end caps�� 67 Table 45 Dimensions of butt welding reducers �� 68 Table 46 Dimensions of butt welding reducers �� 69 Table 47 Dimensions of butt welding reducers �� 70 Table 48 .Basis for hydraulic proof pressure test of assembled union joints�� 72 Table 49 Dimensions of socket welding fittings�� 74 Table 50 .Basis for hydraulic proof pressure test of assembled union joints�� 76 Table 51 .Dimensions of capillary brazing fittings�� 78 Table 52 .Basis for hydraulic proof pressure test of assembled non-manipulative compression joints�� 80 Table 53 .Dimensions of flareless non-manipulative compression fittings�� 82 Table 54 D.imensions of copper alloy threaded plugs and bushings�� 86 Table 55 .Dimension of copper alloy threaded couplings. half couplings and caps�� 87 Table 56 .Dimensions of 90/10 Cu Ni alloy tubes suitable for screwing NPT to ASME B1.20.1-2013* �� 88 Table 57 .Self reinforced branch connection fittings (butt welding type)�� 92 Copyright EEMUA XI Copper nickel alloy piping for offshore applications Publication234 Table 58 .Self reinforced branch connection fittings (socket welding type)�� 93 Table 59 .Self reinforced branch connection fittings (threaded type)�� 94 Table 60 .Dimensions of butt welding ends 16 bar rating �� 99 Table 61 .Dimensions of butt welding ends 20 bar rating ��100 Table 62 .Dimensions of butt welding ends 20 bar rating ��101 Table 63 .Tolerances -Seamless saddle pieces -20 bar rating��101 Table 64 .Seam-welded saddle pieces -16 bar rating��102 Table 65 .Seam-welded saddle pieces -20 bar rating��103 Table 66 .Comparison of backing flanges for use with weld neck and slip-on stub ends��107 Table 67 Pressure/temperature ratings: flanges��109 Table 68 .Chemical composition and mechanical properties of 90/10 Cu Ni fittings��113 Table 69 Pressure/temperature ratings fittings ��115 XII EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Copyright EEMUA XIII Copper nickel alloy piping for offshore applications Publication234 Preface This part of the Specification is for a series of composite (lap type) and solid flanges in metric dimensions based on ASME B16.5-2013(4), MSS SP-44-2006(5) and BS EN 1759-1:2004(6). Publication No. 144 Tubes: Seamless and welded (Chapters 1 and 2) Publication No. 145 Flanges: Composite and solid (Chapters 3 to 6) Publication No. 146 Fittings (Chapters 7 to 13) The basic metric dimensions for drilling and flange outside diameters are those given in ASME B16.5-2013, BS EN 1759-1:2004 and MSS SP-44-2006 for Class 150 rating with inch size bolting. Tubes The flanges covered in this Specification are suitable for maximum design pressures of 16 bar at 75° C and 20 bar at 38° C. The specified outside diameters of tubes, in sizes up to and including 450 mm, covered by this Specification have been selected from BS EN 12449:2012 “Copper and copper alloys – Seamless Round Tubes for General Purposes”: Table 16(1). The specified outside diameters of the remaining sizes covered by this Specification have been selected from BS MA 60 “Summary and application of copper and copper alloy tubes for ships’ pipework systems [now withdrawn](2).” The wall thicknesses have been selected to cover the specific requirements of the petroleum industries. This Specification specifies the requirements for seamless and seam-welded tubes for offshore and associated piping installations based on ASME B31.3-2014(3). The titles of other Publications referred to in this Publication are listed in the References. Note: The reference to “tube” rather than “pipe” in this Specification is based on the usage of this word in existing copper and copper alloy standards. XIV Flanges The following EEMUA Publication 234 incorporates in this Specification the previous Edition of EEMUA 144/145/146: 90/10 copper nickel tubes, flanges and fittings. Details are as follows, with the Chapters relating to the previous Edition included in brackets: EEMUA Copyright For sizes of a particular type of flange not covered within this Specification the Purchaser should satisfy himself that the flange is suitable for the service intended. The diameters of hubs have been chosen to permit the use of ring spanners. A list of other standards and codes referred to in this Publication is given in the References. Publication234 Fittings Material selected from the series of Specifications contained in EEMUA Publication 234 provide for the total requirements of 90/10 copper nickel piping systems intended to operate at pressures up to 16 bar at 75° C or 20 bar at 38° C. This part of the Publication comprises seven Chapters for pipe fittings suitable for use with 90/10 Cu Ni tube. The Chapters are as follows: Chapter seven 90/10 Cu Ni butt welding fittings. Chapter eight 90/10 Cu Ni socket welding fittings (including unions). Chapter nine Copper alloy capillary brazing fittings (including unions). Chapter ten Copper alloy flareless, non-manipulative type compression fittings. Chapter eleven Copper alloy threaded fittings. Chapter twelve 90/10 Cu Ni reinforced branch connectors. Chapter thirteen 90/10 Cu Ni saddle pieces. Fittings other than butt weld tube may be suitable for design pressures and temperatures higher than those required by this Specification. Where this is required the manufacturer of such fittings should be consulted. In order that a more satisfactory match than hitherto is obtained between the bores of fittings (and other butt welding components) and the bores of tubes to which they would be butt welded, a greater emphasis has been placed on the bore dimensions and tolerances of the fittings. The mean bore dimensions of butt weld fittings (See Chapter seven of this Publication) correspond to the mean bore dimensions of the corresponding 16 or 20 bar rated tubes covered by the tube Chapters of this Publication. Copper nickel alloy piping for offshore applications The “building in” dimensions of butt-welding fittings, apart from end caps, have been based on ASME B16.9:2012(7). End caps have been based on DIN 28011:2012-06(8) (with suitable amendments) since the majority of manufacturers tend to follow this particular Specification. Additional compensatory thicknesses have been applied to the intrados of long radius (butt welded) elbows and to the end caps, (see section one of this Publication). Socket weld type fittings are included as an alternative to capillary brazed fittings or flareless, non-manipulative fittings. Threaded fittings including caps, plugs and bushings have also been included in this Publication. Materials of manufacture for each type of fitting are covered in the relevant sections within this Publication. Where other copper base or non-ferrous materials are covered in the various sections, the Purchaser may select accordingly. All materials covered are compatible with the 90/10 Cu Ni alloy. However, reference should also be made to BS MA 18:1973(9) for design limitations. The basic dimensions, based on ASME B16.11-2011(10), together with the acceptance criteria are included with additional test requirements for union type fittings. With reference to capillary brazed fittings, appropriate tests to establish that sufficient brazing alloy has been included as an integral part of the fitting design are outlined, together with the extra test requirements for the acceptance of union type fittings. A list of other standards and codes referred to in this Publication is given in the References. Copyright EEMUA XV Copper nickel alloy piping for offshore applications The correlation between nominal inch sizes and the specified sizes in millimetres are given below: Table i Nominal size - (in) Specified O/D - (mm) ½ 16 ¾ 25 1 30 1¼ 38 1½ 44.5 2 57 2½ 76.1 3 88.9 4 108 6 159 8 219.1 10 267 12 323.9 14 368 16 419 18 457.2 20 508 24 610 28 711 32 813 36 914 Note: For threaded fittings see Table 56. XVI EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 1. Seamless tubes 1.1 Scope and design basis Chapter one of this Specification specifies the requirements for seamless 90/10 Cu/Ni Alloy -UNS 7060X*1 tubes for offshore and related industries. This section specifies the requirements for seamless tubes in diameters from 10 mm to 450 mm for maximum design pressures of: a) b) 16 bar at a temperature range of minus 29° C and a maximum of + 75° C. 20 bar at a temperature range of minus 29° C and a maximum of +38° C. The two corresponding ranges of wall thicknesses comply with the pressure containment requirements of ASME B.31.3-2014 as well as the requirements of IACS (International Association of Classification Societies) with additional allowances for robustness to withstand mechanical damage, especially in the smaller sizes. The ranges of diameters and related wall thicknesses of seamless tubes are given in Tables 4 (16 bar) and 5 (20 bar), “Dimensions of seamless 90/10 Cu/Ni tubes for offshore and associated installations”. Note: Users of this Publication should note that while observing the requirements of this Specification they should at the same time ensure compliance with such statutory requirements, rules and regulations that may be applicable to an individual offshore or associated installation. It should also be noted that the wall thicknesses stated in Tables 4 and 5 were calculated using an allowable design stress of 68.6 N/mm2, together with a corrosion allowance of 0.5 mm. However, to cater for the additional requirements for the use of saddle pieces, an overriding design stress of one fifth of the minimum tensile value of 270N/mm2 has been used for final calculation purposes. 1.2 Information to be supplied by the Purchaser The Purchaser shall state in their enquiry and order the following information: a) b) c) d) e) f) g) h) i) j) *1 The title and number of this Chapter (EEMUA Publication 234, Chapter 1) and material designation (see Table 5). Pressure rating 16 or 20 bar. Tube size and specified thickness in inches and millimetres. Whether supplementary mechanical tests are required (see Section 1.7). Since a hydraulic or eddy current test for each tube is mandatory, the Purchaser shall state whether hydraulic testing is required in addition to, or in preference to, eddy-current testing (see clause 1.9). Whether manufacturer’s certificates are required (see Section 1.11). Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Whether individual cast analyses are required to be supplied (see Chapter 14). Whether any additional identification marking other than that specified herein is required. Whether any additional identification marking other than that specified herein is required. Alloy UNS 7060X is a modified form of the following national designated alloys -UNS 70600, BS CW 352N and DIN 2.0872 see Table 5 of this specification for chemical composition and mechanical properties. Copyright EEMUA 1 Copper nickel alloy piping for offshore applications 1.3 Freedom from defects 1.5.3 Ovality The tubes shall be visibly clean, smooth and free from harmful defects and from deleterious films in the bore. No defect shall penetrate the wall of the tube that will give a resulting thickness of less than the minimum stated in Tables 3 and 4. The ovality of finished tubes shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the size specified in column 2 in Tables 3 and 4. 1.4 Materials and manufacture The casts and the tubes shall comply with the properties of Table 5. The tubes shall be seamless and in no case shall they be redrawn from used tubes. The tubes shall be supplied in straight lengths in the annealed condition. 1.5 Dimensions and tolerances 1.5.1 Outside diameter The mean outside diameter of finished tubes in sizes up to and including 4 in/108 mm shall be within the outside diameter tolerances specified in Tables 3 and 4. The mean outside diameter is half the sum of any two diameters measured at right angles on the same cross section of the tube. Tube sizes 6 in/159 mm up to and including 16 in/419 mm are also based on BS 2871-2, Table 3(11) [now withdrawn] for specified diameters but in this Chapter the tolerances have been applied to the inside diameters to facilitate alignment of matching weld preparations. 1.5.2 Inside diameter The mean inside diameter of finished tubes in sizes 6 in/159 mm and larger shall be within the inside diameter tolerances specified in Tables 3 and 4 for a distance of 100 mm from each end. The mean inside diameter is half the sum of any two inside diameters measured at right angles on the same cross section of the tube. 2 Publication234 EEMUA Copyright 1.5.4 Thickness The thickness of tubes at any point shall not vary from that specified by more than 10% for diameters up to and including 4 in/108 mm. For diameters 6 in/159 mm and larger the wall thickness at any point shall not be less than the minimum values which equate to minus 12.5% as quoted in Tables 3 and 4. 1.5.5 Length (a) When tubes are required in random lengths, the minimum random lengths shall not be less than those specified below. Shorter random lengths may be supplied upon agreement between Purchaser and manufacturer. See Table 1. Table 1 Minimum random lengths for seamless tubes Diameter Minimum random lengths Over Up to and including 16 bar 20 bar mm mm m m - 57 6 6 57 159 5 5 159 323.9 5 4 323.9 368 4 3 368 419 3 - (b) When tubes are required in specific lengths they shall not vary from that specified by more than the tolerances on length given below, when measured at a temperature of 20° C ± 5° C. Copper nickel alloy piping for offshore applications Publication234 1.5.6 Squareness of ends 1.5.7 Straightness The departure from squareness of the plain ends of any tube shall not exceed 1.6% of the specified diameter. The departure from squareness for ends beveled for welding shall not exceed 2.0 mm. The maximum deviation from straight for tube sizes 4 in/108 mm and larger is the depth of arc measured from a straight edge 1 metre in length which shall not exceed 3.0 mm. Table 2 Tolerances on lengths for seamless tubes Diameter Tolerance for specified length in metres Over Up to and including Over 1 m up to and including 3 m Over 3 m up to and including 6 m Over 6 m up to and including 9 m mm mm mm mm mm - 88.9 +3 -0 +6 -0 +8 -0 88.9 323.9 +5 -0 +8 -0 + 10 -0 323.9 419.0 +7 -0 + 10 -0 + 12 -0 1.6 Selection of test samples 1.7 Mechanical tests A batch is defined as a definite quantity of material consisting of one or more casts, or the product or part of a continuous cast run, the composition of which complies with the analytical requirements of Table 5 of this Publication. 1.7.1 Mandatory tests For the tests specified in Section 1.7 tubes of anyone size and thickness shall be grouped in batches of 300 tubes or 1300 kg whichever is the greater weight, and one tube shall be taken at random from each and any remaining part of a batch for testing. When the size of the order does not permit batching in the above quantities, one tube of each size and thickness shall be selected for testing. (a) Tensile tests Tensile, 0.2% proof stress and elongation shall be determined on test samples of tube selected in accordance with Section 1.6 and tested in full section or on longitudinal strips cut from any part of the tube. The tests shall be performed in accordance with BS EN 6892-1:2009(12) and the values obtained shall comply with the requirements of Table 5 of this Publication. The sample selected from each batch, as defined above for test purposes, shall also be used for chemical analysis to confirm compliance with Table 5. Copyright EEMUA 3 Copper nickel alloy piping for offshore applications Publication234 1.7.2 Supplementary tests The following tests are only required when so specified by the Purchaser. (a) Hardness test Hardness tests shall be made on test pieces in accordance with BS EN ISO 6507-1:2005(13) and the values obtained shall not exceed 100 HV 5. (b) Flattening test This test applies to tubes not exceeding 4 in/108 mm outside diameter. The test pieces shall be flattened until the internal surface meets as shown in Figure 1. When subjected to this test the tube shall show no crack or flaw. Figure 2 Double-bend test (d) Drifting test This test applies to tubes not exceeding 4 in/108 mm outside diameter. The test piece shall be expanded as shown in Figure 3 by means of a taper drift having an included angle of 45° , until the outside diameter of the expanded portion exceeds the original outside diameter by 30%. When subjected to this test the tube shall show no crack or flaw. Figure 1 Flattening test 45˚ (c) Double-bend test This test applies to tubes over 4 in/108 mm outside diameter. A test piece 50 mm wide shall be cut longitudinally from the tube. The longer edges shall be carefully rounded and smoothed so that a cross section has approximately semi-circular ends. The test piece shall be flattened and shall have its ends bent through 180°in opposite directions and doubled up close, as shown in Figure 2. When subjected to this test the tube shall show no crack or flaw. 4 EEMUA Copyright Figure 3 Drifting test Publication234 Copper nickel alloy piping for offshore applications 1.8 Retests 1.9.2 Eddy current test Should any one of the test pieces first selected fail to pass any of the prescribed mechanical tests, two further samples from the same batch shall be selected for testing, one of which shall be from the tube from which the original test sample was taken, unless that tube has been withdrawn by the supplier. Should the test piece from both these additional samples pass, the batch represented by the test samples shall be deemed to comply with this Specification. An eddy current test shall be performed on each tube with an outside diameter within the capacity of the equipment in accordance with BS EN 1971-1:2011(14), or ASTM E243(15) plus ASTM B466(16) paragraphs 11.2 and 14.2.3. Should the test pieces from either of these additional samples fail, the batch represented by the test samples shall be deemed not to comply with this Specification. All tubes shall be individually permanently marked and identified by clear legible printing by means of a vibratory etching tool, electrochemical etching or paint or ink stencilling in such colours as to be clearly visible, as follows: 1.9 Hydraulic or eddy current tests (mandatory tests) Manufacturers shall perform one of the following tests: 1.9.1 Hydraulic test Each tube shall be hydraulically tested to an internal pressure of not less than 1.5 multiples of the design pressure in line with the ratings given in Tables 3 and 4. Thus the test pressure for 16 bar rated tubes shall be 24 bar and the test pressure for 20 bar rated tubes shall be 30 bar. In each case the pressure shall be stabilised and maintained for sufficient time to allow for inspection for leakage and/or signs of distress. In each case the test pressure shall be maintained for a minimum of 10 seconds for tubes up to and including 4 in/l08 mm and a minimum of 20 seconds for tubes over 4 in/l08 mm. 1.10 Marking 1.10.1: Tube sizes 1½ in/44.5 mm and above shall be individually marked. (a) (b) (c) (d) (e) (f) (g) (h) Purchase order number (PO). The number of this section (Publication 234: Chapter 1). Material designation UNS 7060X. Size inches and millimetres. Nominal pressure rating -16 or 20 bar. Manufacturer’s name or trademark (MTM). Test certificate number (TCN). Batch traceability number (BTN). Example of Marking: PO 234/1 7060X 3/88.9 16 MTM TCN BTN 1.10.2: Tubes in sizes 1¼ in/38 mm and smaller, where it is not practicable to apply the full requirements of 1.10.1, shall be marked as follows: (a) (b) (c) (d) (e) Material designation UNS 7060X. Size in inches and millimetres. Nominal rating. Manufacturer’s trademark (MTM). Batch traceability number (BTN). Copyright EEMUA 5 Copper nickel alloy piping for offshore applications In such cases the tubes shall be securely bundled and provided with secure indestructible type labels on which the remaining information given in Section 1.10.1 is clearly and permanently marked. Note 1: Stamping with metallic stamps is not permitted. Note 2: Manufacturers shall ensure that any marking materials used shall not be detrimental to the tube material. 1.11 Certification Certificate(s) shall be supplied, either: 1.11.1: A certificate of compliance which shall state that the tubes have been made in accordance with all the requirements of this Chapter of EEMUA Publication 234; or 1.11.2: A manufacturer’s certificate(s) which shall state that the tubes have been made in accordance with all the requirements of this Chapter of EEMUA Publication 234 and: (a) State the actual compositional limits determined for each of the elements designated in Table 5 of the casts used in the manufacture of each batch. Note: Individual cast analyses shall be retained by the manufacturer - see Chapter 14: discretionary contractual clauses. (b) State product analysis of material selected from each batch in accordance with Section 1.6. (c) State the results of the mechanical tests detailed in Section 1.7. (d) State the results of any non-mandatory or special tests specified in the purchase order. (e) State the results of the hydraulic test in accordance with Section 1.9. 6 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 Table 3 Dimensions of seamless 90/10 Cu/Ni tubes: 16 bar rating Tube size Thickness Outside diameter 1 2 3 4 Nom in Specified OD mm Specified mm Minimum mm ½ ¾ 1 1¼ 1½ 2 2½ 3 4 6 8 10 12 14 16 16 25 30 38 44.5 57 76.1 88.9 108 159 219.1 267 323.9 368 419 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 4.0 4.5 5.5 6.5 7.0 1.80 1.80 2.25 2.25 2.25 2.25 2.25 2.25 2.70 2.63 3.50 3.94 4.81 5.69 6.13 Inside diameter 5 6 7 8 Maximum mm Minimum mm Maximum mm Minimum mm See notes 1, 3 and also clause 1.5 16.045 25.055 30.055 38.07 44.57 57.20 76.30 89.15 108.25 - 15.965 24.975 29.975 37.99 44.49 57.12 76.15 89.00 108.00 - See notes 2, 3 and also clause 1.5 153.87 211.40 258.37 313.38 354.92 404.97 153.63 210.80 257.57 312.28 353.52 403.37 Note 1: Tube sizes ½ in/16 mm up to and including 4 in/108 mm are based on BS 2871: Part 2: 1972 [now withdrawn] Table 3 for outside diameters and their tolerances to allow for the use of capillary and compression fittings and brazed (and welded) slip-on flanges. The wall thicknesses of the 16 bar range have been increased to match the 20 bar range in Table 4 for mechanical strength. Note 2: Tube size 6 in/159 mm up to and including 16 in/419 mm are also based on BS 2871: Part 2: 1972 [now withdrawn] Table 3 for specified diameters but the tolerances have been applied to the inside diameters to facilitate alignment of matching weld preparations. Note 3: The ovality of finished tubes shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the size specified in column 2 in the above Table (see also Section 1.5.3). Copyright EEMUA 7 Copper nickel alloy piping for offshore applications Publication234 Table 4 Dimensions of seamless 90/10 Cu/Ni tubes 20 bar rating Tube size 1 Thickness 2 3 Outside diameter 4 Nom in Specified OD mm Specified mm Minimum mm ½ ¾ 1 1¼ 1½ 2 2½ 3 4 6 8 10 12 14 16 16 25 30 38 44.5 57 76.1 88.9 108 159 219.1 267 323.9 368 419 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.5 4.5 5.5 7.0 8.0 9.0 1.80 1.80 2.25 2.25 2.25 2.25 2.25 2.25 2.70 3.06 3.94 4.81 6.13 7.00 7.88 Note 1 Tube sizes ½ in/16 mm up to and including 4 in/l08 mm are based on BS 2871: Part 2: 1972 [now withdrawn] Table 3 for outside diameters and their tolerances to allow for the use of capillary and compression fittings and brazed (and welded) slip-on flanges. The wall thicknesses of the 16 bar range in Table 3 have been increased to match the 20 bar range in the above Table for mechanical strength. Note 2 Tube size 6in/159 mm up to and including 16 in/419 mm are also based on BS 2871: Part 2: 1972 [now withdrawn] Table 3 for specified diameters but the tolerances have been applied to to the inside diameters to facilitate alignment of matching weld preparations. Note 3 The ovality of finished tubes shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the size specified in column 2 in the above Table (see also Section 1.5.3). 8 EEMUA Copyright Inside diameter 5 6 7 8 Maximum mm Minimum mm Maximum mm Minimum mm See notes 1, 3 and also clause 1.5 16.045 25.055 30.055 38.07 44.57 57.20 76.30 89.15 108.25 - 15.965 24.975 29.975 37.99 44.49 57.12 76.15 89.00 108.00 - See notes 2, 3 and also clause 1.5 152.50 210.40 256.33 310.29 351.70 400.64 152.26 209.80 255.53 309.19 350.30 399.04 Copper nickel alloy piping for offshore applications Publication234 Table 5 Chemical composition and mechanical properties of seamless 90/10 copper/nickel tubes Chemical composition - % Element Copper Lead Iron† Nickel Zinc Manganese Sulphur Phosphorous Carbon Total impurities* including those in lighter types min Rem 1.50 10.0 0.50 - Mechanical properties max 0.010 2.00 11.00 0.20 1.00 0.020 0.020 0.050 Tensile Strength – N/mm2 min max 0.2% Proof Stress N/mm2 min 300 380 105 Elongation % min On L = 5.65√So 30 0.30 The minimum iron content has been selected to improve erosion resistance. † * Impurities are elements other than copper (including silver), iron, nickel (including cobalt) and manganese. Copyright EEMUA 9 Copper nickel alloy piping for offshore applications 10 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 2. Seam-welded tubes Note: British Standards do not currently include a document relating to seam welded copper-nickel alloy tubes. ASTM B467(17) is referenced in this section as a replacement for the section on welded tubes in BS 2871 referred to in EEMUA 144/145/146 which has been withdrawn. 2.1 Scope and design basis Section two of this Specification specifies the requirements for seam-welded 90/10 Cu/Ni Alloy UNS 7060X*2 tubes for offshore and related industries. This Specification specifies the requirements for seam-welded tubes in diameters from 6 in/159 mm up to 36 in/914 mm*3 for maximum design pressures of: (a) 16 bar at a temperature range of minus 29° C and a maximum of +75° C. (b) 20 bar at a temperature range of minus 29° C and a maximum of +38° C. The two corresponding ranges of wall thicknesses comply with the pressure containment requirements of ASME B31.3-2014 as well as the requirements of IACS (International Association of Classification Societies) with a joint efficiency factor of 1.0. The ranges of diameters and related wall thicknesses of seam-welded tubes are given in Tables 6 (16 bar) and 7 (20 bar) respectively for seam-welded 90/10 Cu/Ni tubes for offshore and associated installations. Note: Users of this Specification should note that while observing the requirements of this Specification they should at the same time ensure compliance with such statutory requirements, rules and regulations that may be applicable to an individual offshore or associated installation. It should also be noted that the wall thickness stated in Tables 8 and 9 were calculated using an allowable design stress of 68.6N/mm2, together with a corrosion allowance of 0.5 mm. However, to cater for the additional requirements for the use of saddle pieces, an overriding design stress of one fifth of the minimum tensile value of 270N/mm2, has been used for final calculation purposes. 2.2 Information to be supplied by the Purchaser The Purchaser shall state in his enquiry and order the following information: (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) *2 The title and number of this section (EEMUA Publication 234, Chapter 2) and material designation (see Table 10). Seamless or seam welded as appropriate. Pressure rating: 16 or 20 bar. Tube size and specified thickness in inches and millimetres*3. Any additional mechanical tests: (see ASTM B467) or other tests as applicable). Whether manufacturer’s certificates are required (see clause 2.13). Whether it is the intention of the Purchaser to inspect the material at the supplier’s works (see Chapter 14). Whether individual cast analyses are required to be supplied (see Chapter 14). Whether the external or internal weld reinforcement shall be removed (see Section 2.4). Whether any additional identification marking other than that specified herein is required. Alloy UN5 7060X is a modified form of the following national designated alloys UNS 70600, BS CW352N and DIN 2.0872 - see Table 3 of this specification for chemical composition and mechanical properties. *3 For purposes of this specification inch dimensions are nominal and the metric dimensions refer to specified outside diameters. Copyright EEMUA 11 Copper nickel alloy piping for offshore applications 2.3 Freedom from defects The tubes shall be visibly clean, smooth and free from harmful defects and free from deleterious films in the bore. No defect shall penetrate the wall of the tube that will give a resulting thickness of less than the minimum stated in Tables 8 and 9. 2.4 Materials and manufacture The tubes shall be manufactured from hot rolled or cold rolled and annealed sheets or plates manufactured in accordance with BS EN 1652:1998(18), BS EN 1653:1998(19) or ASTM B171-12(20), but with mechanical properties and chemical composition as modified in Table 10. Mechanical testing shall be carried out in accordance with the relevant standards as stated above. brazing procedures, welders, brazers, and welding and brazing operators.” 2.5.3 Welder qualification The welder qualification shall be in accordance with ASME Boiler and Pressure Vessel Code section IX. 2.6 Dimensions and tolerances 2.6.1 Outside diameter The tube sizes quoted in Tables 8 and 9 are based on BS 2871: Part 2 [now withdrawn] for specified diameters up to and including 20 in/508 mm whereas larger sizes are based on BS MA 60 [now withdrawn]. 2.6.2 Inside diameter The tubes shalt be supplied in the “as welded” condition with the external and internal weld reinforcement intact except for cosmetic improvement or unless specified by the Purchaser that such reinforcements shall be removed. The mean inside diameter of finished tubes shall be within the inside diameter tolerances specified in Tables 8 and 9 for a distance of 100 mm from each end. The mean inside diameter is half the sum of the maximum and minimum diameters measured on the same cross section of the tube. 2.5 Welding 2.6.3 Ovality 2.5.1 Consumables The ovality of finished tubes shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the size specified in column 2 in Tables 6 and 7. The composition of the filler wire or rods used for the production of seam-welds shall be selected from BS EN ISO 24373:2009(21) Table 1 - alloy Cu7158. Alternatively filler wire and rods shall be selected from the American Welding Society Specification -AWS-A5.7 - Class ER Cu Ni. Flux coated electrodes shall be selected from the American Welding Society Specification AW5-A5.6 - Class E Cu Ni. 2.5.2 Welding procedure qualification The welding procedure qualifications shall be as quoted in ASME Boiler and Pressure Vessel code(22) section IX “Qualification standard for welding and 12 Publication234 EEMUA Copyright 2.6.4 Circularity (permissible deviation from circularity) In the region of the weld (but excluding the weld) tubes shall be circular within ±0.5% of the specified diameter for a distance of 100 mm from each end. Copper nickel alloy piping for offshore applications Publication234 2.6.5 Thickness The thickness of tubes at any point shall not be less than the minimum values which equate to minus 12.5% as quoted in Tables 6 and 7. 2.6.6 Length (a) When tubes are required in random lengths, the minimum random lengths shall not be less than those specified below. Shorter random lengths may be supplied by agreement between Purchaser and manufacturer. Table 6 Minimum random lengths for seam-welded tubes Diameter Minimum random lengths Over Up to and including 16 bar 20 bar mm mm m m - 323.9 5 4 323.9 368 4 3 368 610 3 3 610 914 2 2 (b) When tubes are required in specific lengths they shall not vary from that specified by more than the tolerances on length specified below, when measured at a temperature of 20° C ±5° C. Table 7 Tolerances on lengths for seam-welded tubes Diameter Tolerence on lengths for seam-welded tubes Over Up to and including Over 1 m up to and including 3 m Over 3 m up to and including 6 m Over 6 m up to and including 9 m mm mm mm mm mm mm mm mm - 323.9 +5 -0 +8 -0 + 10 -0 323.9 419.0 +7 -0 + 10 -0 + 12 -0 419 - + 12 -0 +12 -0 + 13 -0 Copyright EEMUA 13 Copper nickel alloy piping for offshore applications 2.6.7 Squareness of ends 2.9 Repairs to weld seams The departure from squareness of the plain ends of any tube shall not exceed 1.6% of the specified diameter. The departure from squareness for ends bevelled for welding shall not exceed 2.0 mm. Visible defects such as cracks, pinholes and incomplete fusion and defects detected by the tests performed under Sections 2.8 and 2.11 shall be removed and repaired in accordance with Section 2.5. 2.6.8 Straightness The maximum deviation from straight for all sizes of tube is the depth of arc as measured from a straight edge 1 metre in length which shall not exceed 3 mm. 2.7 Selection of test samples Samples representing each cast shall be selected from one sheet or plate. Refer to Section 7 of BS EN 1652/1653:1998 but chemical composition and mechanical properties shall comply with Table 10 of this Publication. 2.8 Non-destructive testing 2.8.1 Liquid dye penetrant test The weld seams of all tube sizes shall be examined externally by the liquid dye penetrant method in accordance with ASME Boiler and Pressure Vessel Code section V, article 6 and shall meet the acceptance requirements of ASME Boiler and Pressure Vessel Code section VIII, division 1, Appendix 8. 2.8.2 Radiography Radiographic examination shall be performed for the complete length of each weld to meet the requirements of ASME Boiler and Pressure Vessel Code, section VIII, UW51. 14 Publication234 EEMUA Copyright 2.10 Retest of repairs A repaired weld seam shall meet the requirements of the original weld and be re-examined and retested in accordance with Sections 2.8 and 2.11. 2.11 Hydraulic test Each tube shall be hydraulically tested to an internal pressure of not less than 1.5 multiples of the design pressure in line with the ratings given in Tables 8 and 9. Thus the test pressure for 16 bar rated tube shall be 24 bar and the test pressure for 20 bar rated tubes shall be 30 bar. In each case the pressure shall be stabilised and maintained for sufficient time to allow for inspection for leakage and/or signs of distress. In each case the test pressure shall be maintained for a minimum of 20 seconds for tube sizes up to and including 16 in/419 mm and a minimum of 30 seconds for sizes over 16 in/419 mm. Publication234 Copper nickel alloy piping for offshore applications 2.12 Marking 2.13 Certification All tubes shall be individually permanently marked and identified by clear legible printing by means of a vibratory etching tool, electrochemical etching, paint or ink stencilling, and where applicable, in such colours as to be clearly visible as follows: Certificate(s) shall be supplied, either: (a) (b) (c) (d) (e) (f) (g) (i) (j) Purchase order number (PO). The number of this Chapter (Publication 234, Chapter 2). Material designation UNS 7060X. Size: inches and millimetres. Nominal pressure rating, 16 or 20 bar. Manufacturer’s name or trademark (MTM). Test certificate number (TCN). Cast identity number. Welder identity (WI). Note 1: Stamping with metallic stamps is not permitted. Note 2: Manufacturers shall ensure that any marking materials used shall not be detrimental to the tube material. Example of marking: PO 234/2 7060X 14/368 16 MTM TCN Cast No WI. 2.13.1: A certificate of compliance which shall state that the tubes have been made in accordance with all the requirements of this section (EEMUA Publication 234, Chapter 2) or: 2.13.2: A manufacturer’s certificate(s) which shall state that the tubes have been made in accordance with all the requirements of this section (EEMUA Publication 234, Chapter 2) and: (a) State the actual composition, determined for each of the elements specified in Table 10 of each cast used in the manufacture of the tubes. (b) State the results of mechanical tests performed on a plate or sheet from each cast formed into tubes as designated in Table 10. (c) State the results of the hydraulic test in accordance with Section 2.11. (d) State the results of the dye penetrant and radiographic examinations of each weld seam in each tube in accordance with Section 2.8. (e) State the results of any non-mandatory or special tests specified in the purchase order. Copyright EEMUA 15 Copper nickel alloy piping for offshore applications Publication234 Table 8 Dimensions of seam-welded 90/10 Cu Ni tubes: 16 bar rating Tube size Thickness 1 2 3 4 Nom in Specified OD mm Specified mm Minimum mm 6 8 10 12 14 16 18 20 24 28 32 36 159 219.1 267 323.9 368 419 457.2 508 610 711 813 914 3.0 4.0 4.5 5.5 6.5 7.0 8.0 8.5 10.5 12.0 13.5 15.5 2.63 3.50 3.94 4.81 5.69 6.13 7.00 7.44 9.19 10.50 11.81 13.56 Note 1: Tube sizes 6 in/159 mm up to and including 20 in/508 mm are based on BS 2871-2:1972 [now withdrawn] Table 3 for specified diameters, but the tolerances have been applied to the inside diameters to facilitate alignment of matching weld preparations. The inside diameters of tube sizes 6 in/159 mm up to and including 16 in/419 mm are also in alignment with the corresponding tube sizes and thicknesses in Table 1. Note 2: The ovality of finished tubes shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the size specified in column 2 in the above Table (see also Section 2.6.3). 16 Inside diameter EEMUA Copyright 5 6 Maximum mm Minimum mm See notes 1, 2 and also clause 2.6 153.87 211.40 258.37 313.38 354.92 404.97 443.0 492.0 591.0 689.0 788.0 885.0 153.63 210.80 257.57 312.28 353.52 403.37 440.0 489.0 588.0 686.0 785.0 882.0 Copper nickel alloy piping for offshore applications Publication234 Table 9 Dimensions of seam-welded 90/10 Cu Ni tubes: 20 bar rating Tube size Thickness Inside diameter 1 2 3 4 Nom in Specified OD mm Specified mm Minimum mm 6 8 10 12 14 16 18 20 24 28 32 36 159 219.1 267 323.9 368 419 457.2 508 610 711 813 914 3.5 4.5 5.5 7.0 8.0 9.0 9.5 11.0 13.0 15.0 17.0 19.0 3.06 3.94 4.81 6.13 7.00 7.88 8.31 9.63 11.38 13.13 14.88 16.63 5 6 Maximum mm Minimum mm See notes 1, 2 and also clause 2.6 152.50 210.40 256.33 310.29 351.70 400.64 440.0 488.0 586.0 683.0 781.0 878.0 152.26 209.80 255.53 309.19 350.30 399.04 437.0 485.0 583.0 680.0 778.0 875.0 Note 1: Tube sizes 6 in/159 mm up to and including 20 in/508 mm are based on BS2871: Part 2: 1972 [now withdrawn] Table 3 for specified diameters, but the tolerances have been applied to the inside diameters to facilitate alignment of matching weld preparations. The inside diameters of tube sizes 6 in/159 mm up to and including 16 in/419 mm are also in alignment with the corresponding tube sizes and thicknesses in Table 2. Note 2: The ovality of finished tubes shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the size specified in column 2 in the above Table (see also Section 2.6.3). Copyright EEMUA 17 Copper nickel alloy piping for offshore applications Publication234 Table 10 Chemical composition and mechanical properties of seam-welded 90/10 Cu Ni tubes Chemical composition - % Element Copper Lead Iron† Nickel Zinc Manganese Sulphur Phosphorous Carbon Total impurities* including those in lighter types min Rem 1.50 10.0 0.50 - Mechanical properties max 0.010 2.00 11.00 0.20 1.00 0.020 0.020 0.050 0.30 The minimum iron content has been selected to improve erosion resistance. * Impurities are elements other than copper (including silver) iron, nickel (including cobalt) and manganese. ** Determined on finished tube outside of heat affected zone (HAZ). † 18 EEMUA Copyright Tensile Strength – N/mm2 min max 280 - 0.2% Proof Elongation % min Stress On L = N/mm2 5.65√So min 105 30 Hardness HV 5 max 120** Copper nickel alloy piping for offshore applications Publication234 3. Composite weld neck flanges 3.1 Scope and design basis Section 3.4 gives details of the 90/10 copper nickel weld neck stub ends, whereas Section 3.5 gives details of the forged carbon steel plate-type backing flanges. The range of sizes covered for these composite weld-neck flanges are ½ in/16 mm 36 in/914 mm*4. Two types of weld neck stub ends are included in Section 3.4. The short components (type S) are based on DIN 86037(23) but modified to suit the appropriate tube wall dimensions. The long components (type L) are based on MSS SP-43:2013(24) to suit the appropriate tube wall dimensions. The long stub ends have been included to facilitate the attachment of this type of flange to butt welding elbows, tees, and the small end of reducers. Only one type of backing flange is included in Section 3.5. The same backing flange is required for all weld neck stub ends whether they be long or short, 16 bar or 20 bar. This type of backing flange is not suitable for use with composite slip-on stub ends (Section 4.4). The thicknesses of the plate type backing flanges have been determined to meet the requirements of the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, Appendix 2, except that design stresses have been established in accordance with ASME B31.3-2014 criteria. The following design criteria have been used: (a) Drilling and outside diameter dimensions of flange sizes ½ inch/16 mm - 24 in/610 mm are in accordance with ASME B16.5-2013 and BS EN 1759-1:2004, (b) (c) (d) (e) whereas the larger sizes, 28 in/711 mm - 36 in/914 mm are in accordance with MSS SP-44-2006. All calculations for backing flanges have been carried out using a design pressure of 20 bar at 38° C. Backing flanges: ASTM A105-14(25) forged carbon steel. Gaskets: 1.5 mm thick. Bolting: ASTM A193-B7(26). Design stresses used in the calculations were as follows: (i) Steel backing flanges: 160.7 N/mm2. (ii) B7 bolting: 172.4 N/mm2. Based on the results of the above calculations an attempt has been made to rationalise ½ in/16 mm up to and including 1½ in/44.5 mm backing flanges which utilise the same bolting. The opportunity was taken therefore to use the same flange thickness (dimension ‘b’) determined for the largest of this size range and apply it to the smaller sizes, resulting in identical bolt lengths for all flanges in that range. This was considered to be a practical and economical advantage within the industry. The dimensions of backing flanges are governed by the strength required to resist the bolting forces which may occur on bolting up. Therefore all backing flanges are suitable for a maximum working pressure of 20 bar at 38° C. This Specification does not specify hydraulic test pressures for flanges or components, details of which should be obtained from the appropriate application standards. *4 For purposes of this specification inch dimensions are nominal and metric dimensions refer to specified outside diameters. Copyright EEMUA 19 Copper nickel alloy piping for offshore applications 3.2 Pressure/temperature ratings Pressure/temperature ratings are the maximum allowable working pressures (MAWP) at the temperatures shown in Appendix B. If a stub end rated at 16 bar is required to be connected to a stub end rated at 20 bar then that flanged joint shall be rated at 16 bar (see Tables 12 and 13). The temperature shown for a corresponding pressure rating is considered to be the same as that of the contained fluid. 3.3 Materials 3.3.1 Flanges Stub ends detailed in Section 3.4 shall be manufactured in 90/10 Cu Ni alloy UNS 7060X*5 the composition and mechanical properties of which are specified in Table 17. Backing flanges detailed in Section 3.4 shall be manufactured from the material specified in Table 18. Alternative steels may be used for the backing flanges provided that they have mechanical properties equal to or better than those specified in ASTM A105-14 (normalised) and are acceptable to the Purchaser. 3.3.2 Gaskets The gaskets shall not be graphited. Alternatively neoprene type gaskets with a minimum Shore hardness of not less than 75 may be used located within the bolt circle. Note: Gaskets should not be used when mating with elastomer/rubber faced flanges. 3.3.3 Bolting (stud bolts) Publication234 3.4 Weld neck stub ends 3.4.1 Manufacture Stub ends shall be manufactured by one or more of the following processes: (a) (b) (c) (d) Hot forging. Cold forging followed by annealing. Friction welded from wrought material in accordance with the requirements of BS EN ISO 15620:2000(28). Other methods of manufacture shall be as agreed between the Purchaser and the manufacturer. 3.4.2 Information to be supplied by the Purchaser The following shall be specified by the Purchaser on the order (for stub ends). (a) The title and number of this Specification (EEMUA Publication 234 Section 3.4). (a) Size: inches and millimetres. (b) The pressure rating: 16 bar or 20 bar. (c) Whether type “S” or type “L” stub ends are required. (d) Whether certificates of compliance or manufacturer’s certificates are required (see Section 3.4.8). (e) Whether it is his intention to inspect the material at the supplier’s works. (f) Whether the individual cast analyses are required to be supplied (see Chapter 14). See Section 3.5.2 for information to be supplied by the Purchaser for backing flanges. (g) Whether any additional identification marking other than that specified herein is required. Alloy UNS 7060X is a modified form of the following national *5 Bolting for flanges to this Specification shall be selected from ASTM A193-B7 and ASTM A194-2H(27) and should be suitably protected from corrosion. 20 EEMUA Copyright designated alloys UNS 70600, BS CW 352N and DIN 2.0872. Copper nickel alloy piping for offshore applications Publication234 3.4.3 Freedom from defects (a) Seamless tube in accordance with Section 1.6 of this Publication. The mechanical properties of the finished components shall comply with the requirements of Table 17 of this Publication. All stub end jointing surfaces shall be machine finished and when compared by visual or tactile means with reference specimens, they shall comply with the values shown in Table 11. (b) Sheet/plate in accordance with BS EN 1652:1998 and BS EN 1653:1998. The analysis and mechanical properties of each sheet or plate used to produce the stub ends shall comply with the requirements of Table 17 of this section. It is not intended that instrument measurements be taken on the faces themselves and the Ra and R2 values relate to the reference specimens. 3.4.6 Marking The stub ends shall be visibly clean, smooth and free from defects greater than 0.5 mm in depth, irregularities, scale or deposits. 3.4.4 Joint facings and surface finish Table 11 Surface finish (weld neck stub ends) Method of machining Turning Ra* μm Rz* μm min max min max 3.2 12.5 12.5 50 Note: The term “turning” includes any method of machining producing concentric or spiral grooves. * Ra and Rz are defined in BS 1134:2010(29) 3.4.5 Selection of test samples For stub ends produced by hot forging or cold forging followed by annealing, samples for determination of mechanical properties shall be selected in accordance with Table 20 of BS EN 12420:2014(30). The mechanical properties so determined shall comply with the requirements of Table 17 of this Publication. Samples shall be selected from each cast for chemical analysis and shall comply with the requirements of Table 17 of this section. 3.4.6.1 All stub ends 2 in/57 mm and larger shall be clearly and permanently marked by means of a vibratory etching tool or electrochemical etching as follows: (a) (b) (c) (d) (e) (f) (g) Purchase order number (PO). The number of this section (EEMUA Publication 234: Section 3.4). Size: inches and millimetres. The nominal pressure rating: 16 bar or 20 bar. Material designation UNS 7060X. Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). Examples of marking: PO 234/3.4 2/57 20 7060X BTN MTM Notes: (i) (ii) Stamping with metallic stamps is not permitted. Marking shall not be on the gasket contact surfaces. For stub ends produced by friction welding using seamless tube and hot rolled or cold rolled and annealed sheet or plate, samples shall be selected as follows: Copyright EEMUA 21 Copper nickel alloy piping for offshore applications 3.4.6.2 Stub ends in sizes 11/2 in/44.5 mm and smaller where it is not practical to apply the full requirements of Section 3.4.6.1 shall be marked as follows: (a) (b) (c) (d) (e) Material designation UNS 7060X. Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). Size: inches and millimetres. Nominal pressure rating: 16 bar or 20 bar. The remainder of the marking requirements shall be applied to indestructible-type labels securely attached to the component. The labels shall be clearly and permanently marked. 3.4.7 Inspection and testing This Section does not make provision for routine pressure testing of stub ends. They shall, however, be dimensionally correct and be marked in accordance with this Section. All stub ends shall be capable of withstanding without leakage or signs of distress a hydraulic pressure as follows: 16 bar rated flanges, test pressure = 24 bar. 20 bar rated flanges, test pressure = 30 bar. 3.4.8 Certification Certificate(s) shall be supplied, either: 3.4.8.1 A certificate of compliance which shall manufactured in accordance with all the Publication 234: Section 3.4) or: 3.4.8.2 A Manufacturer’s certificate(s) which shall state that the stub ends have been manufactured in accordance with all the requirements of this section (EEMUA Publication 234: Section 3.4) and: 22 (a) State the actual compositional limits determined for each of the elements designated in Table 17 of the casts used in the manufacture of each batch as defined in Table 20 of BS EN 12420:2014. In the case of stub ends produced by friction welding state the actual EEMUA Copyright Publication234 compositional limits determined for each of the elements separately designated in Table 17 of the casts used for producing the seamless tube and for the sheet/plate used in each batch of stub ends. Note: Individual cast analyses shall be retained by the manufacturer see Chapter 14: discretionary contractual clauses. (b) State the results of mechanical tests performed on each batch (see Section 3.4.5 - selection of test samples). 3.5 Weld neck backing flanges 3.5.1 Manufacture Backing flanges shall be of forged carbon steel to ASTM A105-14 (normalised) except that the carbon content and the carbon equivalent shall not exceed the values given in Table 18. 3.5.2 Information to be supplied by the Purchaser The following shall be specified by the Purchaser on the order (for backing flanges): (a) (b) (c) (d) (e) (f) (g) The title and number of this Specification (EEMUA Publication 234 Section 3.5). Size: inches and millimetres. Pressure rating: Class 150. Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Whether manufacturer’s certificates are required (see Section 3.5.8). Whether any additional identification marking other than that specified herein is required. Whether any temporary or permanent corrosion protection is required other than that specified in Section 3.5.9. See Section 3.4.2 for information to be supplied by the Purchaser for stub ends. Publication234 Copper nickel alloy piping for offshore applications 3.5.3 Drilling 3.5.7 Inspection and testing All bolt holes shall be drilled and shall be equally spaced on the pitch circle diameter ‘K’ (see Table 14). Backing flanges shall be dimensionally correct and be marked in accordance with this section. 3.5.4 Facings and surface finish Backing flanges shall be visually examined for defects and irregularities in the protective coat. The outside diameters and bores of backing flanges shall be machine finished and edges shall have a radius of 3 mm in accordance with Table 14. The face of the backing flange to be in contact with the stub ends shall be machined flat. 3.5.5 Selection of test samples Samples representing each lot of backing flanges shall be selected, and subjected to testing, in accordance with the requirements of ASTM A105-14. 3.5.6 Marking Backing flanges shall be clearly marked with round-nose steel stamps around the rim. Backing flanges shall be clearly marked as follows: (a) (b) (c) (d) (e) (f) (g) Purchase Order Number (PO). The number of this section (EEMUA Publication 234: section 3.5). Size: inches and millimetres. The nominal pressure rating: Class 150. Material designation: A105 (ASTM A105-14) see Table 18. Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). Examples of marking: PO 234/3.5 10/267 150 A105 BTN MTM. Copyright EEMUA 23 Copper nickel alloy piping for offshore applications 3.5.8 Certification Certificate(s) shall be supplied, either: 3.5.8.1: A certificate of compliance which shall state that the backing flanges have been manufactured in accordance with all the requirements of this Chapter (EEMUA Publication 234, Chapter 3) or: 3.5.8.2: A manufacturer’s certificate which shall state that the backing flanges have been manufactured in accordance with all the requirements of this Chapter (EEMUA Publication 234 Chapter 3) and: (a) (b) State the analysis of each heat used in the manufacture of each order (see Section 3.5: selection of test samples). State the results of mechanical tests performed on each heat used in the manufacture of each order (see Section 3 5.5: selection of test samples). 3.5.9 Temporary corrosion protection Unless otherwise specified by the Purchaser flanges shall be protected against corrosion during transit and storage according to the following procedure: (a) (b) 24 blast clean to standard Sa2.5 as specified in BS EN ISO 8501-1:2007(31). apply blast primer of zinc rich epoxy coating to a dry film thickness of 25-50μm immediately after blast cleaning. After blast priming the identification marking shall be repeated, as necessary, by painting in such colours as to be clearly visible. EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 Table 12 Weld neck 90/10 Cu Ni stub ends: 16 bar rating*6 1.6 +/-0.8mm TYPE S d3 d7 r1 Square corner d6 d4 s1 r2 h5 s1 r2 h5 TYPE L d3 d7 37.5˚+/-2.5˚ s2 h1 s2 Square corner r1 d6 d4 h2 Where S1 is less than 3 mm omit bevel on weld preparation h1 h2 For tolerances see Table 15 Size in/ mm d3 d4 d6 d7 Type S h1*7 Type L h1 h2 r1 r2 h5 S1 min S2 ½/16 ¾/25 1/30 1¼/38 1½/44.5 Use 20 bar see Table 13 2/57 2½/76.1 3/88.9 4/108 6/159 159 212 161.5 153.75 50 89 9 5 5 15 3.0 4.0 8/219.1 219.1 270 222 211.10 50 102 9 5 5 15 4.0 5.5 10/267 267 320 270 257.97 50 127 9 5 5 15 4.5 6.0 12/323.9 323.9 370 327 312.83 50 152 11 7 5 16 5.5 7.0 14/368 368 430 371 354.22 50 152 11 7 5 16 6.5 8.0 16/419 419 482 422 404.17 50 152 12 7 7 16 7.0 8.5 18/457.2 457.2 530 460 441.5 50 152 12 7 7 16 8.0 9.5 20/508 508 585 511 490.5 50 152 12 7 7 20 8.5 10.0 24/610 610 685 613 589.5 60 152 14 9 7 20 10.5 12.0 28/711 711 800 719 687.5 60 190 19 9 7 24 12.0 14.5 32/813 813 905 821 786.5 60 190 20.5 9 7 24 13.5 16.0 36/914 914 1000 922 883.5 60 190 22 9 7 32 15.5 17.5 *6 *7 For weld-neck stub-ends operating at a maximum design pressure of 20 bar at 38ºC - see table 13. Type “S” stub ends are not suitable for welding with the backing flange in position on stub end. Copyright EEMUA 25 Copper nickel alloy piping for offshore applications Publication234 Table 13 Weld neck 90/10 Cu Ni stub ends: 20 bar rating*8 1.6 +/-0.8mm TYPE S 37.5˚+/-2.5˚ d3 d7 r1 Square corner d6 d4 s1 r2 h5 s1 r2 h5 TYPE L d3 d7 s2 h1 r1 Square corner s2 d6 d4 h2 Where S1 is less than 3 mm omit bevel on weld preparation h1 h2 For tolerances see table 15 d3 d4 d6 d7 Type S Type L h1*9 h1 ½/16 16 40 18 12.00 35 ¾/25 25 50 27 21.00 1/30 30 60 32 1¼/38 38 70 1½/44.5 44.5 2/57 h2 r1 r2 h5 S1 min S2 51 4 2 3 15 2.0 3.0 40 51 5 3 3 15 2.0 3.0 25.00 40 51 5 4 3 15 2.5 3.5 40 33.03 40 51 5 4 3 15 2.5 3.5 80 46.5 39.53 45 51 6 4 3 15 2.5 3.5 57 99 59 52.16 45 64 6 5 3 15 2.5 3.5 2½/76.1 76.1 120 78 71.23 45 64 6 5 3 15 2.5 3.5 3/88.9 88.9 130 91 84.08 50 64 7 5 3 15 2.5 3.5 4/108 108 158 110 102.13 50 76 7 5 3 15 3.0 4.0 6/159 159 212 161.5 152.38 50 89 9 5 5 15 3.5 4.5 8/219.1 219.1 270 222 210.10 50 102 9 5 5 15 4.5 6.0 10/267 267 320 270 255.93 50 127 9 5 5 15 5.5 7.0 12/323.9 323.9 370 327 309.74 50 152 11 7 5 16 7.0 8.5 14/368 368 430 371 351.00 50 152 11 7 5 16 8.0 9.5 16/419 419 482 422 399.84 50 152 12 7 7 16 9.0 10.5 18/457.2 457.2 530 460 438.5 50 152 12 7 7 16 9.5 11.0 20/508 508 585 511 486.5 50 152 12 7 7 20 11.0 12.5 24/610 610 685 613 584.5 60 152 14 9 7 20 13.0 14.5 28/711 711 800 719 681.5 60 190 19 9 7 24 15.0 19.0 32/813 813 905 821 779.5 60 190 20.5 9 7 24 17.0 21.0 36/914 914 1000 922 876.5 60 190 22 9 7 32 19.0 23.0 *8 *9 26 Size in/ mm For weld-neck stub-ends operating at a maximum design pressure of 16 bar at 75ºC - see table 12. Type “S” stub ends are not suitable for welding with the backing flange in position on stub end. EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 14 Weld neck blanking flanges: Class 150*10 d2 d5 r r b r=3 e K D FOR TOLERANCES SEE TABLE 15 d2 d5 K No. of bolts e 15.9 19 60.3 4 2 ⅝ 15.9 28 69.8 4 3 14 ⅝ 15.9 33 79.4 4 3 117 14 ⅝ 15.9 41 88.9 4 3 1½/44.5 127 14 ⅝ 15.9 48 98.4 4 3 2/57 152 18 ¾ 19.0 62 120.6 4 3 2½/76.1 178 18 ¾ 19.0 81 139.7 4 3 3/88.9 190 19 ¾ 19.0 94 152.4 4 3 4/108 229 24 ¾ 19.0 113 190.5 8 3 6/159 279 27 ⅞ 22.2 164 241.3 8 4 Size in/mm D b min ½/16 89 ¾/25 in mm 14 ⅝ 98 14 1/30 108 1¼/38 8/219.1 343 31 ⅞ 22.2 225 298.4 8 5 10/267 406 38 1 25.4 273 362.0 12 5 12/323.9 483 41 1 25.4 330 431.8 12 7 14/368 533 45 1⅛ 28.6 374 476.2 12 7 16/419 597 51 1⅛ 28.6 426 539.8 16 7 18/457.2 635 52 1¼ 31.8 465 577.8 16 7 20/508 698 58 1¼ 31.8 517 635.0 20 7 24/610 813 71 1⅜ 34.9 618 749.3 20 9 28/711 927 81 1⅜ 34.9 727 864.0 28 9 32/813 1060 95 1⅝ 41.1 829 978.0 28 9 36/914 1168 105 1⅝ 41.1 931 1086.0 32 9 All dimensions in millimetres except where indicated. *10 These backing flanges are suitable for use in both 16 bar and 20 bar systems: For 16 bar systems use with stub ends selected from table 12. For 20 bar systems use with stub ends selected from table 13. Copyright EEMUA 27 Copper nickel alloy piping for offshore applications Publication234 Table 15 Tolerances: weld neck stub ends Symbol Flange size in/mm h1 Length through stub end Short type S Long type L d6 d7 d4 h2 Neck Ø Inside Ø Flange Ø Flange thickness Up to ¾/25 Over ¾/25 up to 2/57 ±0.44 ±1.5 ±0.50 ±0.54 ±1 2½/76.1 3/88.9 ±2 4/108 ±1.0 6/159 ±1.5 16/419 Over 16/419 up to 36/914 28 EEMUA Copyright ±0.30 ±0.40 ±2 12/323.9 14/368 ±0.73 ±0.12 8/219.1 10/267 ±0.5 ±0.58 ±1 ±2 ±0.55 ±3 ±0.70 ±3 ±0.80 ±1.5 ±1.5 Copper nickel alloy piping for offshore applications Publication234 Table 16 Tolerances: backing flanges Symbol d5 D b Flange size in/mm Bore of flange Outside Ø of flange Thickness of flange Up to 3/88.9 +1 -0 4/108 6/159 up to and incl. 12/323.9 14/368 16/419 18/457.2 20/508 24/610 up to and incl. 36/914 +1.5 -0 +2 -0 +4 -0 +3.5 -0 ±2 +5 -0 K Pitch circle Ø +0.9 -0 d2 Centre to centre of bolt holes +0.5 -0 ±0.45 ±3 +7.5 -0 ±5 +1.4 -0 Bolt hole Ø +1 -0 ±0.7 +10 -0 All dimensions in millimetres except where indicated. Copyright EEMUA 29 Copper nickel alloy piping for offshore applications Publication234 Table 17 Chemical composition and mechanical properties for wrought 90/10 Cu Ni weld-neck stub ends Chemical composition - % Element min Mechanical properties max Copper Lead Iron*11 Nickel Zinc Manganese Sulphur Phosphorous Carbon Rem 1.5 10.0 0.50 - 0.010 2.00 11.00 0.20 1.00 0.020 0.020 0.050 Total impurities*13 including those in lighter types - 0.30 Tensile Strength – N/mm2 min max 280 - 0.2% Proof Stress N/mm2 min Elongation % min on L=5.65√So Hardness HV 5 max 105 30 120*12 Table 18 Chemical composition and mechanical properties for carbon steel backing flanges Material: Forged carbon steel to ASTM A105-14 Chemical requirements: As per ASTM A105 except that the carbon content shell not exceed 0.22% (ladle) with a carbon equivalent of C+Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/15 = 0.42% maximum Mechanical properties: Shall be as stated in ASTM A105-14 The minimum iron content has been selected to improve erosion resistance. *11 Determined on finished stub ends. *12 Impurities are elements other than copper (including silver) iron. nickel (including cobalt) and manganese. *13 30 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 4. Composite slip-on flanges 4.1 Scope and design basis Section 4.4 gives details of the 90/10 copper nickel slip-on stub ends, whereas Section 4.5 gives details of the forged carbon steel plate-type backing flanges. The range of sizes covered for these composite slip-on flanges are ½ in/16 mm - 4 in/108 mm*14. The thicknesses of the plate type backing flanges have been determined generally in accordance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, Appendix 2, except that design stresses have been established in accordance with ASME B31.3-2014 criteria. The following design criteria were used: (a) (b) (c) (d) (e) Drilling and outside diameter dimensions of flange sizes 112 in/16 mm - 4 in/108 mm are in accordance with ASME B16.5-2013 and BS EN 1759-1:2004. All calculations for backing flanges have been carried out using a design pressure of 20 bar at 38° C. Backing flanges: ASTM A105-14 Forged carbon steel. Gaskets: 1.5 mm thick. Bolting: ASTM A193 B7. Design stresses used in the calculations were as follows: (i) Steel backing flanges: 160.7 N/mm2. (ii) Bolting: 172.4 N/mm2. Based on the results of the above calculations an attempt has been made to rationalise ½ in/16 mm up to and including 1½ in/44.5 mm backing flanges which utilise the same bolting. The opportunity was taken therefore to use the same flange thickness, (dimension “b”), determined for the largest of this size range and apply it to the smaller sizes, resulting in identical bolt lengths for all flanges in that range. This was considered to be a practical and economical advantage. It is important to note however, that the backing flanges for these composite slip-on flanges have somewhat larger centre-hole diameters (dimension “d5”) than those used for the corresponding size of weld neck stub ends covered in Section 3.4 of this Specification. Backing flanges to Sections 3.5 and 4.5 therefore are not interchangeable. Dimension “d5” for the two flange types is given in Appendix A. The dimensions of backing flanges are governed by the strength required to resist the forces which may occur on bolting up. Therefore all flanges are suitable for a maximum working pressure of 20 bar at 38° C. This Specification does not specify hydraulic test pressures for flanges or components, details of which should be obtained from the appropriate application standards. 4.2 Pressure/temperature ratings Pressure/temperature ratings are the maximum allowable working pressures (MAWP) at the temperatures shown in Appendix B. The temperature shown for a corresponding pressure rating is considered to be the same as that of the contained fluid. *14 For purposes of this specification inch dimensions are nominal and metric dimensions refer to specified outside diameters. Copyright EEMUA 31 Copper nickel alloy piping for offshore applications 4.3 Materials 4.3.1 Flanges Stub ends detailed in Section 4.4 shall be manufactured in 90/10 Cu/Ni alloy UNS 7060X*15, the composition and mechanical properties of which are specified in Table 24. Backing flanges detailed in Section 4.5 shall be manufactured from the material specified in Table 25. Alternative steels may be used for the backing flanges provided that they have mechanical properties equal to or better than those specified in ASTM A105 (normalised) and are accepTable to the Purchaser. 4.3.2 Gaskets The gaskets shall not be graphited. Neoprene type gaskets with a minimum Shore hardness of not less than 75 may be used located within the bolt circle. Note: Gaskets shall not be used when mating with elastomer/rubber faced flanges. 4.3.3 Bolting (stud bolts) Bolting for flanges to this Specification shall be selected from ASTM A 193-B7 and ASTM A 194-2H and should be suitably protected from corrosion. 4.4 Slip-on stub ends 4.4.1 Manufacture Stub ends shall be manufactured by one or more of the following processes: (a) (b) (c) (d) *15 Hot forging. Cold forging followed by annealing. Friction welded from wrought materials in accordance with the requirements of BS EN ISO 15620:2000(32). Other methods of manufacture shall be as agreed between the Purchaser and the manufacturer. Alloy UNS 7060X is a modified form of the following national designated alloys UNS 70600, as BS CW 352N and DIN 2.0872. 32 EEMUA Copyright Publication234 4.4.2 Information to be supplied by the Purchaser The following shall be specified by the Purchaser on the order (for stub ends): (a) (b) (c) (d) (e) (f) The title and number of this Specification (EEMUA Publication 234: Section 4.4). Size: inches and millimetres. Whether certificates of compliance or manufacturer’s certificates are required (see Section 4.4.8). Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Whether the individual cast analyses are required to be supplied (see Chapter 14). Whether any additional identification marking other than that specified herein is required. See Section 4.5.2 for information to be supplied by the Purchaser for backing flanges. 4.4.3 Freedom from defects The stub ends shall be visibly clean, smooth and free from defects greater than 0.5 mm in depth, irregularities, scale or deposits. 4.4.4 Joint facings and surface finish All stub end jointing surfaces shall be machine finished and when compared with visual or tactile means with reference specimens, they shall comply with the values shown in Table 19. It is not intended that instrument measurements be taken on the faces themselves and the Ra and Rz values relate to the reference specimens. Copper nickel alloy piping for offshore applications Publication234 Table 19 Surface finish (Slip-on stub ends) Method of machining Turning Ra* μm Rz* μm min max min max 3.2 12.5 12.5 50 * Ra and Rz are defined in BS 1134:2010 4.4.5 Selection of test samples For stub ends produced by hot forging or cold forging followed by annealing, samples for determination of mechanical properties shall be selected in accordance with Chapter 7 of BS EN 12420:2014. The mechanical properties so determined shall comply with the requirements of Table 24 of this Publication. Samples shall be selected from each cast for chemical analysis and shall comply with the requirements of Table 14 of this Publication. For stub ends produced by friction welding using seamless tube and hot rolled or cold rolled and annealed sheet or plate, samples shall be selected as follows: (a) (b) Seamless tube in accordance with Section 1.6 of EEMUA Publication 234 Chapter 1. The mechanical properties of the finished components shall comply with the requirements of Table 24 of this Publication. Sheet/plate in accordance with section 7 of BS EN 1652:1998 or BS EN 1653:1998. The analysis and mechanical properties of each sheet or plate used to produce the stub ends shall comply with the requirements of Table 24 of this Publication. 4.4.6 Marking (c) (d) (e) (f) (g) Size: inches and millimetres. The nominal pressure rating 20 bar. Material designation UNS 7060X. Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). Examples of marking: PO 234/4 2/57 20 7060X BTN MTM. Notes: (i) (ii) Stamping with metallic stamps is not permitted. Marking shall not be on the gasket contact surfaces. 4.4.6.2 Stub ends in sizes 1½ in/44.5 mm and smaller where it is not practical to apply the full requirements of 2A.6.1 shall be marked as follows: (a) (b) (c) (d) (e) Size: inches and millimetres. Nominal pressure rating: 20 bar. Material designation UNS 7060X. Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). The remainder of the marking requirements shall be applied to indestructible-type labels securely attached to the component. The labels shall be clearly and permanently marked. 4.4.7 Inspection and testing This section does not make provision for routine pressure testing of stub ends. They shall, however, be dimensionally correct and be marked in accordance with this section. All stub ends shall be capable of withstanding without leakage or signs of distress a hydraulic pressure as follows: 20 bar rated flanges, test pressure = 30 bar. 4.4.6.1 All stub ends 2 in/57 mm and larger shall be clearly and permanently marked by means of a vibratory etching tool or electrochemical etching as follows: (a) Purchase order number (PO). (b) The number of this Section (EEMUA Publication 234, Section 4.4). Copyright EEMUA 33 Copper nickel alloy piping for offshore applications 4.4.8 Certification Publication234 4.5.2 Information to be supplied by the Purchaser Certificate(s) shall be supplied, either: 4.4.8.1 A certificate of compliance which shall state that the stub ends have been manufactured in accordance with all the requirements of this Section (EEMUA Publication 234, Section 4.4) or: 4.4.8.2 A manufacturer’s certificate which shall state that the stub ends have been manufactured in accordance with all the requirements of this Section (EEMUA Publication 234, Section 4.4) and: (a) State the actual composition limits determined for each of the elements designated in Table 24 of each of the casts used in the manufacture of each batch as defined in Table 19 of BS EN 12165:2011(33) or Table 20 of BS EN 12420:2014. In the case of stub ends produced by friction welding state the actual composition limits determined for each of the elements separately designated in Table 24 of the casts used for producing the seamless tube and for the sheet/plate used in each batch of stub ends in accordance with 4.4.1 (c). Note: Individual cast analyses shall be retained by the manufacturer (see Chapter 14). (b) State the results of mechanical tests performed on each batch (see Section 4.4.5- selection of test samples). 4.5. Slip-on backing flanges 4.5.1 Manufacture Backing flanges shall be of forged carbon steel to ASTM A105 (normalised) except that the carbon content and the carbon equivalent shall not exceed the values given in Table 25. 34 EEMUA Copyright The following shall be specified by the Purchaser on the order (for backing flanges): (a) (b) (c) (d) (e) (f) (g) The title and number of this section (EEMUA Publication 234: Section 4.5). Size: inches and millimetres. Pressure rating: Class 150. Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Whether manufacturer’s certificates are required (see Section 4.5.8). Whether any additional identification marking other than that specified herein is required. Whether any temporary or permanent corrosion protection is required other than as specified in Section 4.5.9. See Section 4.4.2 for information to be supplied by the Purchaser for stub ends. 4.5.3 Drilling All bolt holes shall be drilled and shall be equally spaced on the pitch circle diameter K (see Table 21). Publication234 Copper nickel alloy piping for offshore applications 4.5.4 Facings and surface finish 4.5.8 Certification The outside diameters and bores of backing flanges shall be machine finished and edges shall have a radius of 3 mm in accordance with Table 21. The face of the backing flange to be in contact with the stub ends shall be machined flat. Certificate(s) shall be supplied, either: 4.5.5 Selection of test samples Samples representing each lot of backing flanges shall be selected and subjected to testing in accordance with the requirements of ASTM A105-14. 4.5.6 Marking Backing flanges shall be clearly marked with roundnose steel stamps around the rim. Backing flanges shall be clearly marked as follows: (a) (b) (c) (d) (e) (f) (g) Purchase Order Number (PO). The number of this section (EEMUA Publication 234, Chapter 4.5). Size: inches and millimetres. The nominal pressure rating: Class 150. Material designation: A105 (ASTM A105-14) see Table 25 Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). Examples of marking: PO 234/4.5 2/57 150 A105 BTN MTM. 4.5.7 Inspection and testing Backing flanges shall be dimensionally correct and be marked in accordance with this section. Backing flanges shall be visually examined for defects and irregularities in the protective coating. 4.5.8.1 A certificate of compliance which shall state that the backing flanges have been manufactured in accordance with all the requirements of this Section (EEMUA Publication 234, Section 4.5) or: 4.5.8.2 A manufacturer’s certificate which shall state that the backing flanges have been manufactured in accordance with all the requirements of this Section (EEMUA Publication No 234, Section 4.5) and: (a) (b) State the analysis of each cast used in the manufacture of each order (see Section 4.5.5 -selection of test samples). State the results of mechanical tests performed on each cast used in the manufacture of each order (see Section 4.5.5 - selection of test samples). 4.5.9 Temporary corrosion protection Unless otherwise specified by the Purchaser flanges shall be protected against corrosion during transit and storage according to the following procedure: (a) (b) blast clean to standard Sa2½ as specified in BS EN ISO 8501-1:2007. apply blast primer of zinc rich epoxy coating to a dry film thickness of 25-50/μm immediately after blast cleaning. After blast priming the identification marking shall be repeated, as necessary, by painting in such colours as to be clearly visible. Copyright EEMUA 35 Copper nickel alloy piping for offshore applications Publication234 Table 20 Slip-on 90/10 Cu Ni stub ends 20 bar These stub ends are for use in both 16 bar and 20 bar systems. d6 d1 r h1 h2 d4 For tolerances see table 22 for pressure/ temperature ratings - see Appendix B Size in/ mm d1 d6 d4 h1 h2 r ½/16 16.07 21 40 16 5 1 ¾/25 25.08 31 53 16 5 1 1/30 30.08 36 60 18 5 1 1¼/38 38.10 45 70 18 5 1 1½/44.5 44.60 51 80 19 5 1 2/57 57.23 67 99 19 6 1 2½/76.1 76.33 87 120 19 6 1 3/88.9 89.18 100 130 21 7 1 4/108 108.38 120 158 23 7 1 All dimensions in millimetres except where indicated. 36 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 21 Steel backing flanges for use with 90/10 Cu Ni slip-on stub-ends: Class 150 These backing flanges are for use in both 16 bar and 20 bar systems. d2 d5 r r b r=3 e K D For tolerances see table 23 for pressure/temperature ratings - see Appendix B Size in/mm D d2 b min in mm d5 No. of bolts K e ½/16 89 14 ⅝ 15.9 23 60.3 4 3 ¾/25 98 14 ⅝ 15.9 33 69.8 4 3 1/30 108 14 ⅝ 15.9 38 79.4 4 3 1¼/38 117 14 ⅝ 15.9 47 88.9 4 3 1½/44.5 127 14 ⅝ 15.9 53 98.4 4 3 2/57 152 18 ¾ 19.0 69 120.6 4 3 2½/76.1 178 18 ¾ 19.0 89 139.7 4 3 3/88.9 190 19 ¾ 19.0 103 152.4 4 3 4/108 229 24 ¾ 19.0 123 190.5 8 3 All dimensions in millimetres except where indicated. Table 22 Tolerances: slip-on stub ends Symbol h1 d6 d1 d4 h2 Flange size in/mm Length through stub end Neck Ø Inside Ø Flange Ø Flange thickness up to and including 2½/76.1 ±1.5 ±0.5 +0.05 -0 ±1 ±0.5 3/88.9 and 4/108 ±2 ±1 +0.05 -0 ±2 ±0.5 All dimensions in millimetres except where indicated. Copyright EEMUA 37 Copper nickel alloy piping for offshore applications Publication234 Table 23 Tolerances: steel backing flanges Symbol d5 D b K d2 Flange size in/mm Bore Outside Ø Thickness Pitch circle Ø Centre to centre of bolt holes Bolt hole Ø up to and including 3/88.9 +1 -0 ±2 +3.5 -0 +0.9 -0 ±0.45 +0.5 -0 4/108 +1.5 -0 ±2 +3.5 -0 +0.9 -0 ±0.45 +0.5 -0 All dimensions in millimetres except where indicated. Table 24 Chemical composition and mechanical properties for wrought 90/10 Cu Ni slip on stub-ends Chemical composition - % Element min Mechanical properties max Copper Lead Iron*16 Nickel Zinc Manganese Sulphur Phosphorous Carbon Rem 1.5 10.0 0.50 - 0.010 2.00 11.00 0.20 1.00 0.020 0.020 0.050 Total impurities*18 including those in lighter types - 0.30 Tensile Strength – N/mm2 min max 280 - 0.2% Proof Stress N/mm2 min Elongation % min on L=5.65√So Hardness HV 5 max 105 30 120*17 Table 25 Chemical composition and mechanical properties for carbon steel backing flanges 38 Material: Forged carbon steel to ASTM A105-14 (normalised) Chemical requirements: As per ASTM A105-14 except that the carbon content shell not exceed 0.22% (ladle) with a carbon equivalent of C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 = 0.42% max Mechanical properties: Shall be as stated in ASTM A105-14 *16 The minimum iron content has been selected to improve erosion resistance. *17 Determined on finished stub ends. *18 Impurities are elements other than copper (including silver) iron. nickel (including cobalt) and manganese. EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 5. Solid 90/10 copper nickel weld neck flanges 5.1 Scope and design basis Chapter 5 gives details of solid 90/10 copper nickel weld neck flanges. The range of sizes covered for these flanges is ½ in/16 mm - 36 in/914 mm*19. The thicknesses of these weld neck flanges have been determined generally in accordance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, Appendix 2. The following design criteria were used: (a) (b) (c) (d) Drilling and outside diameter dimensions of flange sizes ½ in/16 mm - 24 in/610 mm are in accordance with ASME B16.5-2013 and BS EN 1759-3:2003(34), whereas the larger sizes, 28 in/711 mm - 36 in/914 mm are in accordance with MSS-SP-44-2006. All calculations have been carried out using a design pressure of 20 bar at 38° C which additionally verifies the flanges for 16 bar at 75° C. The only difference between 16 bar and 20 bar flanges being the minimum bore and weld preparation. Gaskets: 1.5 mm. Bolting: aluminium bronze, ASTM B150-12(35) (alloy UNS C63000). Design stresses used were as follows: (i) Flanges: 68.6 N/mm2. (ii) Bolting: 172.4 N/mm2 up to 1 in size. 155.17 N/mm2 over 1 in size. The major differences from ASME B16.5-2013 and BS EN 1759-3:2003, flanges are the length through hub, the thickness of flange and in some cases changes in the hub geometry to satisfy the design criteria, and permit the use of ring spanners. This Specification does not specify hydraulic test pressures for flanges or components, details of which should be obtained from the appropriate application standards. 5.2 Pressure/temperature ratings Pressure/temperature ratings are the maximum allowable working pressures (MAWP) at the temperatures shown in Appendix B. If a flange rated at 16 bar is to be connected to a flange rated at 20 bar then that flanged joint shall be rated at 16 bar (see Tables 27 and 28). The temperature shown for a corresponding pressure rating is considered to be the same as that of the contained fluid. 5.3 Materials 5.3.1 Flanges Flanges detailed in this section shall be manufactured in 90/10 Cu Ni alloy UNS 7060X*20, the composition and mechanical properties of which are specified in Table 30. 5.3.2 Gaskets The gaskets shall not be graphited. Neoprene type gaskets with a minimum Shore hardness of not less than 75 may be used. In order to ensure adequate seating, irrespective of materials, the gaskets shall be located within the bolt circle. Note: Gaskets should not be used when mating with elastomer/rubber faced flanges. *19 For purposes of this specification inch dimensions are nominal and metric dimensions refer to specified outside diameters. *20 Alloy UNS 7060X is a modified form of the following national designated alloys - UNS 70600, as BS CW 352N and DIN 2.0872. Copyright EEMUA 39 Copper nickel alloy piping for offshore applications 5.3.3 Bolting Suitable material for bolting (stud bolts) for flanges to this Chapter is aluminium bronze alloy to ASTM B150 alloy UNS C63000. Other suitable copper alloy bolting materials may be used providing they have comparable corrosion resisting properties and are compatible with the parent flange material. In addition, the mechanical properties of the alternative material shall be equal to or greater than those of ASTM B150 alloy UNS C63000. 5.4 Manufacture Solid weld neck flanges shall be manufactured by hot forging or cold forging followed by annealing. Other methods of manufacture shall be as agreed between Purchaser and manufacturer. 5.5 Information to be supplied by the Purchaser The following shall be specified by the Purchaser on the order: (a) (b) (c) (d) (e) (f) (g) The title and number of this Chapter (EEMUA Publication 234: Chapter 5). Size: inches and millimetres. The pressure rating: 16 bar or 20 bar, see Tables 27 and 28 and Appendix B. Whether it is their intention to inspect the material at the suppliers works (see Chapter 14). Whether manufacturer’s certificates are required (see Section 5.11). Whether individual cast analyses are required to be supplied (see Chapter 14). Whether any additional identification marking other than that specified herein is required. 5.6 Freedom from defects Flanges shall .be visibly clean and free from defects greater than 0.5 mm in depth, irregularities, scale or deposits. 40 EEMUA Copyright Publication234 5.7 Joint facings and surface finish All flange jointing faces shall be machine finished and when compared by visual or tactile means with reference specimens they shall comply with the values shown in Table 26. It is not intended that instrument measurements be taken on the faces themselves and the Ra and Rz values relate to the reference specimens. Table 26 Surface finish (solid weld neck flanges) Note: The term “turning” includes any method of machining producing concentric or spiral grooves. * Ra and Rz are defined in BS 1134:2010. Method of machining Turning Ra* μm Rz* μm min max min max 3.2 12.5 12.5 50 5.8 Selection of test samples For solid weld neck flanges produced by hot forging or cold forging followed by annealing, samples for determination of mechanical properties shall be selected in accordance with Table 20 of BS EN 12420:2014. The mechanical properties so determined shall comply with the requirements of Table 30 of this Publication. Samples shall be selected from each cast for chemical analysis and shall comply with the requirements of Table 30 of this Publication. Copper nickel alloy piping for offshore applications Publication234 5.9 Marking 5.10 Inspection and testing 5.9.1 All flanges 2 in/57 mm and above shall be individually clearly and permanently marked by means of a vibratory etching tool or electrochemical etching as follows: This section does not make routine provision for pressure testing of flanges. They shall, however, be dimensionally correct and be marked in accordance with this section. All flanges shall be capable of withstanding without leakage or signs of distress a hydraulic pressure as follows: (a) (b) (c) (d) (e) (f) (g) Purchase order number (PO). The number of this section (EEMUA Publication 234: Chapter 5). Size: inches and millimetres. The nominal pressure rating: 16 bar or 20 bar. Material designation - UNS 7060X*21. Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). Examples of marking: P0 234/5 2/57 Notes: (i) (ii) 20 7060X BTN MTM. Stamping with metallic stamps is not permitted. Marking shall not be on the gasket contact surfaces. 5.9.2 Flanges in sizes 1½ in/44.5 mm and smaller where it is not practical to apply the full requirements of Section 5.9.1 shall be marked as follows: (a) (b) (c) (d) (e) Size: inches and millimetres. Nominal pressure rating 16 or 20 bar. Material designation UNS 7060X. Batch traceability number (BTN). Manufacturer’s name or trademark (MTM). The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the component. The labels shall be clearly and permanently marked. 16 bar rated flanges, test pressure = 24 bar. 20 bar rated flanges, test pressure = 30 bar. 5.11 Certification Certificate(s) shall be supplied, either: 5.11.1 A certificate of compliance which shall state that the flanges have been manufactured in accordance with all the requirements of this section (EEMUA Publication 234, Chapter 5) or: 5.11.2 A manufacturer’s certificate which shall state that the flanges have been manufactured in accordance with all the requirements of this section (EEMUA Publication 234, Chapter 5) and: (a) State the actual compositional limits determined for each of the elements designated in Table 30 of the casts used in the manufacture of each batch. Note: Individual cast analyses shall be retained by the manufacturer (see Chapter 14). (b) State the results of mechanical tests performed on each batch (see Section 5.8: selection of test samples). *21 Alloy UNS 7060X is a modified form of the following national designated alloys - UNS 70600, BS CW 352N and DIN 2.0872. Copyright EEMUA 41 Copper nickel alloy piping for offshore applications Publication234 Table 27 Solid 90/10 Cu Ni weld neck flanges: 16 bar 1.6 + 0.8mm d6 It should be noted that although these flanges are flat faced, inside bolt circle gaskets shall be used and special care should be taken to avoid over tightening the bolls. 37.5˚+ 2.5˚ d3 s1 h2 h1 d2 All dimensions in millimetres except where indicated. b d7 K D For tolerances see table 29 for pressure/temperature ratings see Appendix B D Size in mm Outside Ø of flange 42 b d6 Thickness Ø of of hub flange d3 h1 d7 S1 min h2 Thickness Parallel of hub length Hub Ø Length Bore at weld through of at on Ø of No. chamfer hub flange welding hub bolt of bolt circle bolts holes end K - d2 Drilling Ø of ½ 16 ¾ 25 1 30 1¼ 38 1½ 44.5 2 57 2½ 76.1 3 88.9 4 108 6 159 279 27 192 159 89 153.75 3.0 8 241.3 8 22.2 8 219.1 343 31 246 219.1 98 211.10 4.0 8 298.4 8 22.2 10 267 406 31 305 267 98 257.97 4.5 8 362.0 12 25.4 12 323.9 483 35 365 323.9 98 312.83 5.5 8 431.8 12 25.4 14 368 533 41 400 368 99 354.22 6.5 8 476.2 12 28.6 16 419 597 43 457 419 106 404.17 7.0 8 539.8 16 28.6 18 457.2 635 45 505 457.2 113 441.5 8.0 8 577.8 16 31.8 20 508 698 45 559 508 118 490.5 8.5 8 635.0 20 31.8 24 610 813 49 664 610 137 589.5 10.5 8 749.3 20 34.9 28 711 927 72 748 711 145 687.5 12.0 8 864 28 34.9 32 813 1060 72 876 813 160 768.5 13.5 8 978 28 41.1 36 914 1168 72 984 914 175 838.5 15.5 8 1086 32 41.1 EEMUA Copyright Use 20 bar see table 28 Copper nickel alloy piping for offshore applications Publication234 Table 28 Solid 90/10 Cu Ni weld neck flanges: 20 bar 1.6 + 0.8mm d6 It should be noted that although these flanges are flat faced, inside bolt circle gaskets shall be used and special care should be taken to avoid over tightening the bolls. 37.5˚+ 2.5˚ d3 s1 h2 h1 d2 All dimensions in millimetres except where indicated. b d7 K D For tolerances see table 29 for pressure/temperature ratings see Appendix B Where s1 min is less than 3 mm omit bevel on weld preparation D Size in mm Outside Ø of flange b d6 Thickness Ø of of hub flange d3 h1 d7 S1 min h2 Thickness Parallel of hub length Hub Ø Length Bore at weld through of at on Ø of No. chamfer hub flange welding hub bolt of bolt circle bolts holes end K - d2 Drilling Ø of ½ 16 89 14 23 16 48 12.00 2.0 8 60.3 4 15.9 ¾ 25 98 16 32 25 52 21.00 2.0 7 69.8 4 15.9 1 30 108 16 42 30 56 25.00 2.5 8 79.4 4 15.9 1¼ 38 117 17 51 38 57 33.03 2.5 8 88.9 4 15.9 1½ 44.5 127 20 61 44.5 62 39.53 2.5 7 98.4 4 15.9 2 57 152 25 73 57 64 52.16 2.5 9 120.6 4 19.0 2½ 76.1 178 27 91 76.1 70 71.23 2.5 8 139.7 4 19.0 3 88.9 190 27 105 88.9 70 84.08 2.5 8 152.4 4 19.0 4 108 229 27 135 108 76 102.13 3.0 8 190.5 8 19.0 6 159 279 27 192 159 89 152.38 3.5 8 241.3 8 22.2 8 219.1 343 31 246 219.1 98 210.1 4.5 8 298.4 8 22.2 10 267 406 31 305 267 98 255.93 5.5 8 362.0 12 25.4 12 323.9 483 35 365 323.9 98 309.74 7.0 8 431.8 12 25.4 14 368 533 41 400 368 99 351.00 8.0 8 476.2 12 28.6 16 419 597 43 457 419 106 399.84 9.0 8 539.8 16 28.6 18 457.2 635 45 505 457.2 113 438.5 9.5 8 577.8 16 31.8 20 508 698 45 559 508 118 486.5 11.0 8 635.0 20 31.8 24 610 813 49 664 610 137 584.5 13.0 8 749.3 20 34.9 28 711 927 72 748 711 145 681.5 15.0 8 864 28 34.9 32 813 1060 72 876 813 160 779.5 17.0 8 978 28 41.1 36 914 1168 72 984 914 175 876.5 19.0 8 1086 32 41.1 Copyright EEMUA 43 Copper nickel alloy piping for offshore applications Publication234 Table 29 Tolerances: solid 90/10 Cu Ni weld neck flanges Symbol d7 D d6 h1 b Flange size in/mm Bore of flange Outside Ø of flange Outside Ø of hub Length through flange Thickness of flange Up to ¾/25 ±0.44 1/30 up to & incl. 2/57 ±0.54 2½/76.1 3/88.9 44 ±0.58 4/108 ±0.73 6/159 ±0.12 8/219.1 ±0.30 10/267 ±0.40 12/323.9 ±0.55 14/368 ±0.70 16/419 ±0.80 18/457.2 up to & incl. 24/610 ±1.5 28/711 up to & incl. 36/914 ±1.5 EEMUA Copyright Pitch circle Ø d2 Centre to centre of bolt holes +3.5 -0 ±0.5 ±2 K ±1.5 ±1.5 +0.5 -0 +0.9 -0 ±1 Bolt hole Ø ±0.45 +5.0 -0 ±3 +1 -0 ±3 ±3.2 +1.4 -0 ±5 +7.5 -0 ±0.7 Copper nickel alloy piping for offshore applications Publication234 Table 30 Chemical composition and mechanical properties for solid wrought 90/10 Cu Ni weld neck flanges Chemical composition - % Element min max Copper Lead Iron*22 Nickel Zinc Manganese Sulphur Phosphorous Carbon Rem 1.5 10.0 0.50 - 0.010 2.00 11.00 0.20 1.00 0.020 0.020 0.050 Total impurities*24 including those in lighter types - 0.30 Mechanical properties Tensile Strength – N/mm2 min max 280 - 0.2% Proof Stress N/mm2 min Elongation % min on L=5.65√So Hardness HV 5 max 105 30 120*23 *22 The minimum iron content has been selected to improve erosion resistance. *23 Determined on finished stub ends. *24 Impurities are elements other than copper (including silver) iron. nickel (including cobalt) and manganese. Copyright EEMUA 45 Copper nickel alloy piping for offshore applications 46 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 6. Solid 90/10 copper nickel slip-on flanges 6.1 Scope and design basis Chapter 6 gives details of solid 90/10 copper nickel slip-on flanges. The range of sizes covered for these flanges is ½ in/16 mm 4 in/108 mm*25. The thicknesses of these slip-on flanges have been determined generally in accordance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, Appendix 2. The following design criteria were used: (a) (b) (c) (d) Drilling and outside diameter dimensions of flange sizes ½ in/16 mm -4 in/108 mm are in accordance with ASME B16.5-2013 and BS EN 1759-3:2003. All calculations have been carried out using a design pressure of 20 bar at 38° C. Gaskets: 1.5 mm thick. Bolting: aluminium bronze ASTM B150-12 (alloy UNS C63000). Design stresses used in the calculations were as follows: (i) flanges: 68.6 N/mm2. (ii) bolting: 172.4 N/mm2. For solid slip-on flanges, in sizes greater than 4 in/108 mm, preliminary calculations have indicated that the solid weld neck flange design covered in Chapter 5 of this Specification is more economical and lighter in weight. For the included sizes of solid slip-on flanges (½ in/16 mm - 4 in/108 mm) in order to maintain consistency between the weldneck and slip-on types, the flange thicknesses and hub diameters are the same for both types. This Specification does not specify hydraulic test pressures for flanges or components, details of which should be obtained from the appropriate application standards. 6.2 Pressure/temperature ratings The pressure/temperature ratings are the maximum allowable working pressures (MAWP) at the temperatures shown in Appendix B. The temperature shown for a corresponding pressure rating is considered to be the same as that of the contained fluid. 6.3 Materials 6.3.1 Flanges Flanges detailed in this Specification shall be manufactured in 90/10 Cu Ni alloy UNS 7060X*26, the composition and mechanical properties of which are specified in Table 34. 6.3.2 Gaskets The gaskets shall not be graphited. Alternatively neoprene type gaskets with a minimum Shore hardness of not less than 75 may be used. In order to ensure adequate seating irrespective of the material, the gaskets shall be located within the bolt circle. Note: Gaskets should not be used when mating with elastomer/rubber faced flanges. 6.3.3 Bolting Suitable material for bolting (stud bolts) for flanges to this section is aluminium bronze to ASTM B150 alloy UNS C63000. *25 For purposes of this specification inch dimensions are nominal and metric dimensions refer to specified outside diameters. *26 Alloy UNS 7060X is a modified form of the following national designated alloys - UNS 70600, as BS CW 352N and DIN 2.0872. Copyright EEMUA 47 Copper nickel alloy piping for offshore applications 6.4 Manufacture Table 31 Surface finish (solid slip-on flanges) Solid slip-on flanges shall be manufactured by hot forging or cold forging followed by annealing. Other methods of manufacture shall be as agreed between Purchaser and manufacturer. Method of machining 6.5 Information to be supplied by the Purchaser The following shall be specified by the Purchaser on the order: (a) (b) (c) (d) (e) (f) The title and number of this section (EEMUA Publication No. 234: Chapter 6). Size: inches and millimetres. Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Whether manufacturer’s certificates are required (see Section 6.11). Whether individual cast analyses are required to be supplied (see Chapter 14). Whether any additional identifying marking other than that specified herein is required. 6.6 Freedom from defects Flanges shall be visibly dean and free from defects greater than 0.5 mm in depth, irregularities, scale or deposits. 6.7 Joint facings and surface finish All flange jointing faces shall be machine finished and when compared by visual or tactile means with reference specimens they shall comply with the values shown in Table 31. It is not intended that instrument measurements be taken on the faces themselves and the Ra and Rz values relate to the reference specimens. 48 Publication234 EEMUA Copyright Turning Ra* μm Rz* μm min max min max 3.2 12.5 12.5 50 Note: The term “turning” includes any method of machining producing concentric or spiral grooves. * Ra and Rz are defined in BS 1134:2010 6.8 Selection of test samples For solid slip-on flanges produced by hot forging or cold forging followed by annealing samples for determination of mechanical properties shall be selected in accordance with Table 20 of BS EN 12420:2014. The mechanical properties so determined shall comply with the requirements of Table 34 of this Publication. Samples shall be selected from each cast for chemical analysis and shall comply with the requirements of Table 34 of this Publication. 6.9 Marking 6.9.1 All flanges 2 in/57 mm and above shall be individually clearly and permanently marked by means of a vibratory etching tool or electro-chemical etching as follows: (a) (b) (c) (d) (e) (f) (g) Purchase order number (PO). The number of this Chapter (EEMUA Publication 234: Chapter 6). Size: inches and millimetres. The nominal pressure rating 20 bar. Material designation: UNS 7060X. Batch traceability number (BTN). Manufacturer’s name or trade mark (MTM). Publication234 Copper nickel alloy piping for offshore applications Examples of marking: 6.11 Certification PO 234/6 2/57 20 7060X BTN MTM. Certificate(s) shall be supplied, either: Notes: (i) (ii) 6.11.1 A certificate of compliance which shall state that the flanges have been manufactured in accordance with all the requirements of this Chapter (EEMUA Publication 234, Chapter 6) or: Stamping with metallic stamps is not permitted. Marking shall not be on the gasket contact surface. 6.9.2 Flanges in sizes 1½ in/44.5 mm and smaller where it is not practical to apply the full requirements of Section 6.9.1 shall be marked as follows: (a) (b) (c) (d) (e) Size: inches and millimetres. Nominal pressure rating 20 bar. Material designation UNS 7060X. Batch traceability number (BTN). Manufacturer’s name or trademark. The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the component. The labels shall be permanently marked. 6.10 Inspection and testing 6.11.2 A manufacturer’s certificate which shall state that the flanges have been manufactured in accordance with all the requirements of this section (EEMUA Publication 234, Chapter 6) and: (a) State the actual compositional limits determined for each of the elements designated in Table 34 of the casts used in the manufacture of each batch. Note: Individual cast analyses shall be retained by the manufacturer (see Chapter 14). (b) State the results of mechanical tests performed on each batch (see Section 6.8: selection of test samples). This section does not make routine provision for pressure testing of flanges. They shall, however, be dimensionally correct and be marked in accordance with this Section. All flanges shall be capable of withstanding without leakage or signs of distress a hydraulic pressure as follows: 20 bar rated flanges, test pressure = 30 bar. Copyright EEMUA 49 Copper nickel alloy piping for offshore applications Publication234 Table 32 Solid 90/10 Cu Ni slip-on flanges d6 Maximum draft angle 4˚ d3 r d2 h1 b K D For tolerances see table 33 for pressure/temperature ratings see Appendix B Size in mm D b Outside Thickness Ø of of flange flange d3 Bore of flange d6 h1 Ø of Length hub through r K - d2 - Drilling Radius hub Ø of No. Ø of Ø of bolt of bolt bolt circle bolts holes in ½ 16 89 14 16.07 23 20 4 60.3 4 15.9 ½ ¾ 25 98 16 25.08 32 24 4 69.8 4 15.9 ½ 1 30 108 16 30.08 47 24 4 79.4 4 15.9 ½ 1¼ 38 117 17 38.10 51 26 6 88.9 4 15.9 ½ 1½ 44.5 127 20 44.60 61 26 6 98.4 4 15.9 ½ 2 57 152 25 57.23 73 28 6 120.6 4 19.0 ⅝ 2½ 76.1 178 27 76.33 91 32 6 139.7 4 19.0 ⅝ 3 88.9 190 27 89.18 105 34 6 152.4 4 19.0 ⅝ 4 108 229 27 108.38 135 40 8 190.5 8 19.0 ⅝ The calculations for the above flanges are in accordance with the design criteria given in Section 6.1 which indicates that in flange sizes above 4 in/108 mm the solid weld-neck design is more economical and lighter than its solid slip-on counterpart and for this reason have been omitted from this section. It should be noted that although these values are flat faces inside bolt circle gaskets shall be used and special care should be taken to avoid over tightening the bolting. All dimensions in millimetres except where indicated. 50 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 33 Tolerances: solid 90/10 Cu Ni slip-on flanges Symbol D h1 d6 b Flange size in/mm OD of flange Outside Ø of flange Ø of hub Thickness of flange up to and incl. 2 in 2½/76.1 ±2 ±0.5 +3.5 -0 ±1.0 +5 -0 ±1.5 3/88.9 4/108 K Pitch circle Ø Centre to centre of bolt holes +0.9 -0 d2 d3 Bolt hole Ø Bore of flange +0.05 -0 +0.5 -0 ±0.45 +0.1 -0 All dimensions in millimetres except where indicated. Table 34 Chemical composition and mechanical properties for solid wrought 90/10 Cu Ni slip-on flanges Chemical composition - % Element min max Copper Lead Iron*27 Nickel Zinc Manganese Sulphur Phosphorous Carbon Rem 1.5 10.0 0.50 - 0.010 2.00 11.00 0.20 1.00 0.020 0.020 0.050 Total impurities*29 including those in lighter types - 0.30 Mechanical properties Tensile Strength – N/mm2 min max 280 - 0.2% Proof Stress N/mm2 min Elongation % min on L=5.65√So Hardness HV 5 max 105 30 120*28 The minimum iron content has been selected to improve erosion resistance. Determined on finished stub ends. *29 Impurities are elements other than copper (including silver) iron. nickel (including cobalt) and manganese. *27 *28 Copyright EEMUA 51 Copper nickel alloy piping for offshore applications 52 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 7. 90/10 Cu Ni butt welding fittings 7.1 Scope and design basis Chapter 7 covers wrought butt welding fittings in sizes 1 in/30 mm up to and including 36 in/914 mm in 90/10 Cu Ni alloy UNS 7060X*30 as modified in Appendix D of this Publication, for maximum allowable working pressures (MAWP) of 16 bar and 20 bar for temperatures up to and including 75° C and 38° C respectively (see appendix E). The dimensions and tolerances are such that they are suitable for butt welding to seamless or seamwelded 90/10 Cu Ni tubes to EEMUA Publication 234 Chapters 7 and 8 respectively. This Chapter also covers the acceptance criteria and proof testing requirements for butt welding fittings. The design features and wall thicknesses of butt welding tees and reducers shall be established by mathematical analysis given in a nationally recognised pressure vessel or piping code acceptable to the Purchaser. The design of fittings which cannot be qualified by such analyses shall be established in accordance with the proof testing procedure in ASME B16.9:2012. 7.2 Information to be supplied by the Purchaser The Purchaser shall state in the enquiry and order the following information: (a) (b) (c) (d) (e) The title and number of this section (EEMUA Publication 234: Chapter 7). The type of fitting and size in inches and millimetres and material designation (see appendix D). The pressure rating – 16 or 20 bar. Whether manufacturer’s certificates are required; (see Section 7.12). Whether it is his intention to inspect the material at supplier’s works (see Chapter 14). (f) (g) Whether any additional identification marking other than that specified herein is required. Whether any test samples or individual test analyses are required to be supplied (see Chapter 14). 7.3 Freedom from defects The fittings shall be visually clean, smooth and free from defects greater than 0.5 mm in depth, irregularities, scale or deposits, and shall be free from deleterious films in the bore. Repairs by welding shall be limited to seam welds only. 7.4 Materials and manufacture The fittings shall be seamless or seam-welded and manufactured from tube sheet or plate as follows: Tubes (seamless) shall have chemical composition and mechanical properties in accordance with EEMUA Publication 234 Chapter 7, “Specification for 90/10 Cu Ni seamless tubes.” Tubes (seam-welded) shall have chemical composition and mechanical properties in accordance with EEMUA Publication 234: Chapter 7, “Specification for 90/10 copper nickel seam-welded tubes.” Sheets or plates shall be hot rolled or cold rolled and annealed in accordance with BS EN 1652:1998, BS EN 1653:1998 or ASTM B171-12 but with chemical composition as modified in this Specification (see appendix D). *30 UNS 7060X is a modified form of the following material designated alloys - UNS 70600, BS CN102 and DIN 2.0872. See appendix D of this publication for chemical composition and mechanical properties. Copyright EEMUA 53 Copper nickel alloy piping for offshore applications The dimensions and tolerances of seamless and seam-welded fittings shall comply with the requirements of Tables 35 to 43. 7.7 Non-destructive testing The chemical composition and mechanical properties of butt-welding fittings to this Specification are given in appendix D. The weld seams of all welded fittings shall be examined externally by the liquid dye penetrant method in accordance with ASME Boiler and Pressure Vessel Code Section V, Article 6 and shall meet the acceptance requirements of ASME Boiler and Pressure Vessel Code Section VIII, Division 1 Appendix 8. 7.5 Welding 7.5.1 Consumables The composition of the filler wire or rods used for the production of seam welds shall be selected from BS EN ISO 24373:2009, Table 1 - Alloy Cu7158. Alternatively filler wires and rods shall be selected from the American Welding Society Specification AWS-A5.7 - Class ER Cu Ni. Flux coated electrodes shall be selected from the American Welding Society Specification AWS A5.6 - Class E Cu Ni. 7.5.2 Welding procedure qualification The welding procedure qualifications shall be as quoted in ASME Boiler and Pressure Vessel Code Section IX “Qualification Standard for Welding and Brazing Procedures, Welders, Brazers, and Welding and Brazing Operators.” 7.5.3 Welder qualification The welder qualification shall be in accordance with ASME Boiler and Pressure Vessel Code Section IX. 7.6 Selection of test samples (a) (b) 54 Publication234 Fittings made from seamless or seam-welded tube to EEMUA Publication 234 Chapters 1 or 2 do not require any additional testing other than hardness testing in order to ensure compliance with Appendix D of this Specification. Fittings formed from sheet or plate shall be subject to the relevant requirements of EEMUA Publication 234: Chapter 2. EEMUA Copyright 7.7.1 liquid dye penetrant test 7.7.2 Radiography Radiographic examination shall be performed for the complete length of each weld to meet the requirements of ASME Boiler and Pressure Vessel Code Section VIII, UW51. 7.8 Repairs to welded seams Visible defects such as cracks, pinholes and incomplete fusion and defects detected by the tests performed under Section 7.7 shall be removed and repaired in accordance with Section 7.5. 7.9 Retests of repairs A repaired weld seam shall meet the requirements of the original weld and be re-examined and retested in accordance with Section 7.7. Publication234 Copper nickel alloy piping for offshore applications 7.10 Marking 7.11 Inspection and testing i. All fittings shall be individually permanently marked and identified by clear, legible printing by means of a vibratory etching tool, electro chemical etching, paint or ink stencilling and where applicable, in such colours as to be clearly visible as follows: This section does not make provision for routine pressure testing of fittings. They shall, however, be dimensionally correct and be marked in accordance with this section. All fittings shall be capable of withstanding without leakage or signs of distress a hydraulic pressure of 1.5 times the maximum design pressure at ambient temperatures as follows: (a) (b) (c) (d) (e) (f) (g) (h) (i) Purchase order number (PO). The number of this section (EEMUA Publication 234: Chapter 7. Material designation UNS 7060X (See appendix D). Size: inches and millimetres. Pressure rating -16 or 20 bar. Manufacturer’s name and/or trademark (MTM). Test certificate number (TCN). Cast number. Where applicable welder identity (WI). 16 bar rated fittings, test pressure = 24 bar. 20 bar rated fittings, test pressure = 30 bar. Example of marking: PO 234/7 7060X 14/368 16 MTM TCN Cast No WI ii. On fittings 44.5 mm and smaller and where it is not practical to apply the full requirements of 7.10 i to the fitting the marking shall detail: (a) (b) (c) (d) (e) Material designation. Cast Number. Manufacturer’s name or trademark. Size: inches and millimetres. Pressure rating 20 bar. The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the components. The labels shall be clearly and permanently marked. Alternatively the additional marking requirements shall be applied to the carton in which the fittings are packed. Note 1: Stamping with metallic stamps is not permitted. Note 2: Manufacturers shall ensure that any marking materials used shall not be detrimental to the material of the fittings. Copyright EEMUA 55 Copper nickel alloy piping for offshore applications Publication234 7.12 Certification A B Root face 1.6 + 0.8 Certificate(s) shall be supplied either: 37.5˚ + 2.5˚ 7.12.2: A manufacturer’s certificate which shall state that the fittings have been made in accordance with all the requirements of this section (EEMUA Publication 234: Chapter 7) and: (a) (b) (c) (d) (e) (f) (g) 56 State the actual compositional limits determined for each of the elements designated in appendix D of the casts used in the manufacture of each order for seamless tubes used to manufacture fittings and/or: State the actual compositional limits determined for each of the elements. designated in appendix D of each cast used in the manufacture of each sheet or: plate used in the manufacture of fittings. Note: Individual cast analyses shall be retained by the manufacturer - see Chapter 14. State the results of mechanical tests performed on the seamless tubes used to manufacture fittings in accordance with appendix D and/or state the results of mechanical tests performed on sheets or plates formed into fittings in accordance with appendix D. State the results of the dye penetrant and radiographic examination of each weld on each fitting carried out in accordance with and complying with Sections 7.7, 7.8 and 7.9. EEMUA Copyright Slope 1:4 45˚ min t Figure 4 Dimensions of welding ends on butt welding components See Tables 35 and 36 for dimensions A, B and t, for 16 and 20 bar ratings respectively. Note: In the case of specified wall thicknesses (t) of less than 3mm, the weld bevel of 37½o ± 2½o may be omitted. Copper nickel alloy piping for offshore applications Publication234 Welding tee per ANSI B16.9 with r x > 1/8 D b Tc < 1.5 T T r2 Tc where: T = nominal thickness of the matching pipe. Tc = crotch thickness of tees. r2 = mean radius of matching pipe. rx rx D b = outside diameter of branch pipe. Extruded welding tee r x > 0.05 Db Tc < 1.5 T T r2 Tc rx Figure 5 Guidance for the design of tees (See also appendix D of ASME B31.3-2014) Copyright EEMUA 57 Copper nickel alloy piping for offshore applications Publication234 Table 35 Dimensions of welding ends for all butt welding components 16 bar rating. For tolerances see Table 37 Size* A specified OD Pipe wall thickness t specified Inside diameter at welding ends B minimum maximum minimum 30 38 44.5 57 Use 20 bar see Table 36 76.1 88.9 108 159 3.0 2.63 154.5 153.0 219.1 4.0 3.50 211.9 210.4 267 4.5 3.94 258.7 257.2 323.9 5.5 4.81 313.6 312.0 368 6.5 5.69 355.2 353.2 419 7.0 6.13 405.0 403.0 457.2 8.0 7.00 443.0 440.0 508 8.5 7.44 492.0 489.0 610 10.5 9.19 591.0 588.0 711 12.0 10.50 689.0 686.0 813 13.5 11.81 788.0 785.0 914 15.5 13.56 885.0 882.0 Note: Ovality -The ovality of finished butt welding fittings shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the specified size in column 1 of this Table. * For inch/millimetre correlation - see Preface. All dimensions in millimetres. 58 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 36 Dimensions of welding ends for all butt welding components 20 bar rating. For tolerances see Table 37 Size* A Pipe wall thickness t Inside diameter at welding ends B specified OD specified minimum maximum minimum 30 2.5 2.25 25.555 24.475 38 2.5 2.25 33.57 32.49 44.5 2.5 2.25 40.07 38.99 57 2.5 2.25 52.70 51.62 76.1 2.5 2.25 71.80 70.62 88.9 2.5 2.25 84.65 83.50 108 3.0 2.70 102.85 101.40 159 3.5 3.06 153.0 151.50 219.1 4.5 3.94 210.9 209.40 267 5.5 4.81 256.7 255.20 323.9 7.0 6.13 310.5 309.0 368 8.0 7.00 352.0 350.0 419 9.0 7.88 401.0 399.0 457.2 9.5 8.31 440.0 437.0 508 11.0 9.63 488.0 485.0 610 13.0 11.38 586.0 583.0 711 15.0 13.13 683.0 680.0 813 17.0 14.88 781.0 778.0 914 19.0 16.63 878.0 875.0 Note: Ovality -The ovality of finished butt welding fittings shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the specified size in column 1 of this Table. * For inch/millimetre correlation - see Preface. All dimensions in millimetres. Copyright EEMUA 59 Copper nickel alloy piping for offshore applications Publication234 Table 37 Tolerances – fittings Size* 90 deg & 45 deg elbows & tees (see Table 38, 40, 41, 42 & 43) Reducers (see Table 45, 46 & 47) End caps (see Table 44) Specified OD centre-to-end dimension D, E, C & M overall length H overall length h1 + h2 Up to and including 267 ±2 ±2 323.9 up to and including 711 ±3 ±3 813 up to and including 914 ±5 ±5 Size* +0.015 DO -0 Angularity Specified OD Off angle Q Off plane P Up to and including 108 ±1 ±2 Over 108 up to and including 219.1 ±2 ±4 267 up to and including 323.9 ±3 ±5 368 up to and including 419 ±3 ±7 457.2 up to and including 610 ±4 ±10 711 ±5 ±10 813 up to and including 914 ±5 ±13 All dimensions in millimetres. * For inch/millimetre correlation - see Preface Q Q Q Q Q P Q Q Q Q 60 EEMUA Copyright Q Copper nickel alloy piping for offshore applications Publication234 Table 38 Dimensions of long radius elbows D E D E Centre-to-end Size* specified OD 90 deg elbows D 45 deg elbows E max nom min max nom min 30 40 38 36 24 22 20 38 50 48 46 27 25 23 44.5 59 57 55 31 29 27 57 78 76 74 37 35 33 76.1 97 95 93 46 44 42 88.9 116 114 112 53 51 49 108 154 152 150 66 64 62 159 231 229 227 97 95 93 219.1 307 305 303 129 127 125 267 383 381 379 161 159 157 323.9 460 457 454 193 190 187 368 536 533 530 225 222 219 419 613 610 607 257 254 251 457.2 689 686 683 289 286 283 508 765 762 759 321 318 315 610 917 914 911 384 381 378 711 1070 1067 1064 441 438 435 813 1224 1219 1214 507 502 497 914 1377 1372 1367 570 565 560 All dimensions in millimetres Notes: For inside diameters at the plain or bevelled ends - see Tables 35, 36. See Table 39 for elbow wall thicknesses. * For inch/millimetre correlation - see Preface. Copyright EEMUA 61 Copper nickel alloy piping for offshore applications Publication234 Table 39 Intrados thickness of long radius elbows Intrados t Thickness Size* specified OD Thickness minimum t intrados minimum tube wall minimum t intrados minimum tube wall see note 1 see note 2 see note 1 see note 2 16 bar 20 bar 30 2.25 2.25 38 2.25 2.25 44.5 2.25 2.25 2.25 2.25 76.1 2.25 2.25 88.9 2.25 2.25 108 2.70 2.70 57 USE 20 bar 159 2.83 2.63 3.40 3.06 219.1 3.74 3.50 4.54 3.94 267 4.42 3.95 5.38 4.81 323.9 5.27 4.81 6.45 6.13 368 5.88 5.69 7.20 7.00 419 6.61 6.13 8.12 7.88 457.2 7.10 7.00 8.73 8.31 508 7.84 7.44 9.65 9.63 610 9.31 9.19 11.49 11.38 711 10.76 10.50 - - 813 12.27 11.81 - - 914 13.70 13.56 - - All dimensions in millimetres *For inch/millimetre correlation see Preface. Note 1: See appendix C for basis for the calculation of “t” -intrados thickness. The minimum thickness at the centre of the intrados of an elbow shall not be less than the thickness shown in the above Table. Note 2: The minimum allowable thickness of an elbow at any point shall not be less than the minimum allowable thickness of the corresponding tube. Note 3: For inside diameters at the plain or bevelled ends - see Tables 35 and 36. 62 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 40 Dimensions of straight (equal) tees M C C Centre-to-end Size* specified OD run C outlet M max nom min max nom min 30 40 38 36 40 38 36 38 50 48 46 50 48 46 44.5 59 57 55 59 57 55 57 66 64 62 66 64 62 76.1 78 76 74 78 76 74 88.9 88 86 84 88 86 84 108 107 105 103 107 105 103 159 145 143 141 145 143 141 219.1 180 178 176 180 178 176 267 218 216 214 218 216 214 323.9 257 254 251 257 254 251 368 282 279 276 282 279 276 419 308 305 302 308 305 302 457.2 346 343 340 346 343 340 508 384 381 378 384 381 378 610 435 432 429 435 432 429 711 524 521 518 524 521 518 813 602 597 592 602 597 592 914 678 673 668 678 673 668 All dimensions in millimetres. Note: For inside diameters at the plain or bevelled ends -see Tables 35, 36. * For inch/millimetre correlation - see Preface. Copyright EEMUA 63 Copper nickel alloy piping for offshore applications Publication234 Table 41 Dimensions of reducing outlet tees - sizes up to 159 x 159 x 108 M C C Centre-to-end Size* specified OD run C Outlet M run run outlet max nom min max nom min 30 30 25 40 38 36 40 38 36 38 38 30 38 38 25 50 48 46 50 48 46 44.5 44.5 38 44.5 44.5 30 59 57 55 59 57 55 44.5 44.5 25 57 57 44.5 62 60 58 57 57 38 59 57 55 57 57 30 53 51 49 76.1 76.1 57 72 70 68 76.1 76.1 44.5 69 67 65 76.1 76.1 38 66 64 62 88.9 88.9 76.1 85 83 81 88.9 88.9 57 78 76 74 88.9 88.9 44.5 75 73 71 108 108 88.9 100 98 96 108 108 76.1 97 95 93 108 108 57 91 89 87 159 159 108 132 130 128 159 159 88.9 126 124 122 159 159 76.1 123 121 119 66 78 88 107 145 64 76 86 105 143 62 74 84 103 141 All dimensions in millimetres. Note: For inside diameters at the plain or bevelled ends -see Tables 35 and 36. * For inch/millimetre correlation - see Preface. 64 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 42 Dimensions of reducing outlet tees Sizes 219.1 x 219.1 x 88.9 up to and including 508 x 508 x 457.2 Centre-to-end Size* specified OD run C run run outlet 219.1 219.1 159 219.1 219.1 108 219.1 219.1 267 max max nom min 170 168 166 158 156 154 88.9 154 152 150 267 219.1 205 203 201 267 267 159 196 194 192 267 267 108 186 184 182 323.9 323.9 267 244 241 238 323.9 323.9 219.1 232 229 226 323.9 323.9 159 222 219 216 273 270 267 260 257 254 180 218 257 nom Outlet M 178 216 254 min 176 214 251 368 368 323.9 368 368 267 368 368 219.1 251 248 245 419 419 368 308 305 302 419 419 323.9 298 295 292 419 419 267 286 283 280 457.2 457.2 419 333 330 327 457.2 457.2 368 333 330 327 457.2 457.2 323.9 324 321 318 508 508 457.2 371 368 365 508 508 419 359 356 353 508 508 368 359 356 353 282 308 346 384 279 305 343 381 276 302 340 378 All dimensions in millimetres. Note: For inside diameters at the plain or bevelled ends see Tables 35 and 36. Copyright EEMUA 65 Copper nickel alloy piping for offshore applications Publication234 Table 43 Dimensions of reducing outlet tees Sizes 610 x 610 x 419 up to and including 914 x 914 x 813 Centre-to-end Size* specified OD 66 run C run run outlet 610 610 508 610 610 457.2 610 610 711 max nom min 435 432 429 422 419 416 419 409 406 403 711 610 511 508 505 711 711 508 486 483 480 711 711 457.2 473 470 467 813 813 711 577 572 567 813 813 610 564 559 554 813 813 508 538 533 528 914 914 813 653 648 643 914 914 711 627 622 617 914 914 610 615 610 605 EEMUA Copyright max 435 524 602 678 nom Outlet M 432 521 597 673 min 429 518 592 668 Copper nickel alloy piping for offshore applications Publication234 Table 44 Dimensions of end caps h2 h1 t (min) R1* R2* D Size DO * † 91R1 min R2 max 44.5 4.5 57 16 bar t (min) 16 bar h1 + h2 t (min) h1 + h2 44.5 2.25 19.6 5.7 57 2.25 22.0 76.1 7.6 76.1 2.25 25.7 88.9 8.9 88.9 2.25 28.2 108 11 108 2.70 31.7 159 16 159 2.63 41 3.12 44 219.1 22 219.1 3.54 55 4.29 60 267 27 267 4.29 69 5.23 69 323.9 32 323.9 5.24 80 6.34 85 368 37 368 5.90 93 7.21 103 419 42 419 6.73 102 8.21 112 457.2 46 457.2 7.33 119 8.97 119 508 51 508 8.15 129 9.96 139 610 61 610 9.81 148 11.96 163 711 71 711 11.50 176 13.97 191 813 81 813 13.17 200 15.97 210 914 91 914 14.81 221 17.96 231 USE 20 bar All dimensions in millimetres. Note 1: For inside diameters at the plain or bevelled ends – see Tables 35 and 36. Note 2: The additional compensatory thickness over and above the minimum pipe wall thickness were established and calculated on the basis of PD 5500, where allowable stress “f” was taken to be 68.6 N/mm2 (up to 75oC) and “P” = maximum design pressure of 1.6 N/mm2 (16 bar) and 2.0 N/mm2 (20 bar) and P/f values of 0.0233 and 0.0292 respectively. * Dimension “A” from Figure 4. † For inch/millimetre correction - see Preface. Copyright EEMUA 67 Copper nickel alloy piping for offshore applications Publication234 Table 45 Dimensions of butt welding reducers Sizes 30 x 25 up to and including 159 x 88.9 Size* specified OD 68 30 25 38 30 38 25 44.5 38 44.5 30 44.5 25 57 44.5 57 38 57 30 76.1 57 76.1 44.5 76.1 38 88.9 76.1 88.9 57 88.9 44.5 108 88.9 108 76.1 108 57 159 108 159 88.9 159 76.1 159 57 EEMUA Copyright End-to-end length of reducers H Parallel end max nom min L** 53 51 49 10 53 51 49 10 Concentric Type 1 H 66 64 62 10 Type 2 78 76 74 10 H L 91 89 87 10 91 89 87 10 L Eccentric Type 1 H 104 102 100 12 Type 2 142 140 138 15 H Copper nickel alloy piping for offshore applications Publication234 Table 46 Dimensions of butt welding reducers Sizes 219.1 x 159 up to and including 457.2 x 323.9 Size* specified OD 219.1 159 219.1 108 219.1 88.9 219.1 76.1 267 219.1 267 159 267 108 323.9 267 323.9 219.1 323.9 159 368 323.9 368 267 368 219.1 419 368 419 323.9 419 267 457.2 419 457.2 368 457.2 323.9 End-to-end length of reducers H Parallel end max nom min L** 154 152 150 15 180 178 176 16 206 203 200 16 333 330 327 - 359 356 353 - 384 381 378 - All dimensions in millimetres. * For inch/millimetre correlation - see Preface. ** Seamless concentric only. Copyright EEMUA 69 Copper nickel alloy piping for offshore applications Publication234 Table 47 Dimensions of butt welding reducers Sizes 508 x 368 up to and including 914 x 813 End-to-end length of reducers H Size* specified OD 508 457.2 508 419 508 368 610 508 610 457.2 610 419 711 610 711 508 711 457.2 813 711 813 610 914 813 914 711 914 610 max nom min 511 508 505 511 508 505 613 610 607 615 610 605 615 610 605 All dimensions in millimetres. Note: For inside diameters at the plain or bevelled ends -see Tables 35 and 36. * For inch/millimetre correlation - see Preface. 70 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 8. 90/10 Cu Ni socket welding fittings 8.1 Scope and design basis This Chapter covers wrought socket welding fittings in sizes 16 mm up to and including 57 mm in 90/10 copper nickel alloy UNS 7060X*31 as modified in appendix D of this Publication, for maximum allowable working pressure (MAWP) of 20bar, at a temperature of 38° C. These fittings are intended for use with seamless 90/10 copper nickel tubes to Chapter 1. Details of test and acceptance requirements for union fittings are given as well as materials for union nuts. The adequacy of union type fittings whose design cannot be established by mathematical analyses given in a nationally recognised pressure vessel or piping code, shall be established by proof testing in accordance with Section 8.5 of this section. Note: The use of an anti-galling compound on the threads compatible with the material of the fitting shall be considered. 8.2 Information to be supplied by the Purchaser The Purchaser shall state in the enquiry and order the following information: (a) (b) (c) (d) (e) The title and number of this section (EEMUA Publication 234: Chapter 8). The type of fitting and size in inches and millimetres and material designation (see appendix D). Whether manufacturer’s certificates are required (see Section 8.8). Whether it is his intention to inspect the material at the supplier’s works. (see Chapter 14). Whether any additional identification marking other than that specified herein is required. (f) Whether any test samples or individual test analyses are required to be supplied (see Chapter 14). 8.3 Freedom from defects The fittings shall be visually clean, smooth and free from harmful defects greater than 0.5 mm in depth, irregularities, scale or deposits and shall be free from deleterious films in the bore. 8.4 Materials and manufacture The fittings in 90/10 Cu Ni shall be manufactured by hot forging, or cold forging followed by annealing or machined from forging stock*32 and with chemical composition in accordance with appendix D. Alternatively, union nuts shall be manufactured from one of the following materials: 1) 2) 3) Aluminium bronze BS EN 12165:2011, CW307G, UNS 63200/UNS 64200. Gunmetal (bronze) BS EN 1982:2008(36), CC491K/UNS 83600. Aluminium brass BS EN 1652/1653:1998, CW702R/UNS 68700. The mechanical properties of socket welding fittings manufactured from 90/10 copper nickel shall comply with the requirements of Appendix D. *31 Alloy UNS 7060X is a modified form of the following national designated alloys -UNS 70600, BS CW352H and DIN 2.0872. See Appendix D of this specification for chemical composition and mechanical properties. *32 Forging stock -forged, rolled or extruded bar (solid or hollow) intended for the production of forgings. Only straight fittings, e.g couplings may be machined directly from forging stock. Copyright EEMUA 71 Copper nickel alloy piping for offshore applications The dimensions of socket welding fittings shall comply with the requirements of Table 49 of this Publication. All socket welding ends shall be at right angles to the axis of the fitting and be provided with an adequate surface for the required fillet welds. The forging radius shall not reduce the flat welding surface to less than 75% of “Cx” (minimum). The sockets shall be of uniform depth and circularity, and all terminal threaded ends shall be in accordance with ASME B1.20.1-2013(37). 8.5 Proof tests for adequacy of socket welding union type fittings (prototype test) The maximum working pressures required for fittings to this section are those given in Table 48 for temperatures up to and including 75° C when assembled with the appropriate size and thickness of tube. Table 48 Basis for hydraulic proof pressure test of assembled union joints Size of union fitting* Maximum allowable working pressure mm bar 16 106 25 70 30 30 38 30 44.5 30 57 30 *For inch/millimetre correlation - see Preface. 72 EEMUA Copyright Publication234 To determine the relative strength and leak tightness of union fittings, straight tube of a suitable size and wall thickness shall be welded to each end of the socket welding union fitting, at least 150 mm in length. Proper end closures shall be applied beyond the minimum length of straight tube. The fittings and their component parts when assembled at normal atmospheric temperature and in accordance with the manufacturer’s instructions shall be capable of withstanding an internal hydraulic pressure of 1.5 times the stated maximum working pressure without showing signs of leakage or distress in the fittings or joint. The pressure shall be maintained for 15 minutes. The union joints shall be broken down and reassembled three times (with the cone and seat rotated through 90o relative to one another on each occasion) and retested to 1.5 times the stated working pressure and maintained for 15 minutes and shall provide a sound joint on each occasion. Cx = 3.2mm (min) -0.75 C x min Figure 6 Welding dimensions required for socket welding fittings Publication234 Copper nickel alloy piping for offshore applications 8.6 Marking 8.8 Certification 8.6.1: All fittings shall be individually permanently marked and identified by clear legible printing by means of a vibratory etching tool or by electrochemical etching, as follows: Certificate(s) shall be supplied, either: (a) (b) (c) (d) (e) (f) (g) (h) Purchase order number (PO). The number of this section (EEMUA Publication 234 Chapter 8). Material designation UNS 7060X (See appendix D). Size: inches and millimetres. Manufacturer’s name and/or trademark (rATM). Test certificate number (TCN). Cast number. Example of Marking: P.O. 234/8 7060X 2/57 MTM TCN Cast No. 8.6.2: Where it is not practical to apply the full requirements of Section 8.6.1 to the fitting, the marking shall detail: (a) (b) (c) (d) 8.8.1: A certificate of compliance which shall state that the fittings have been manufactured in accordance with all the requirements of this Chapter (EEMUA Publication 234: Chapter 8) or: 8.8.2: A manufacturer’s certificate which shall state that the fittings have been manufactured in accordance with all the requirements of this Chapter (EEMUA Publication 234 Chapter 8) and: (a) (b) State the actual compositional limits determined for each of the elements of the casts used in the manufacture of each batch or order. State the results of mechanical tests performed on each cast used in the manufacture of each batch or order. Material designation. Size: inches and millimetres. Manufacturer’s name or trademark (MTM). Cast number. The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the components. The label shall be clearly and permanently marked. Alternatively, the additional marking requirements shall be applied to the carton in which the fittings are packed. Note: Stamping fittings with metallic stamps is not permitted. 8.7 Inspection and testing This section does not make provision for routine pressure testing of fittings. They shall be dimensionally correct and be marked in accordance with this section. All fittings shall be capable of withstanding without leakage or signs of distress a hydraulic pressure of 30 bar. Copyright EEMUA 73 Copper nickel alloy piping for offshore applications Publication234 Table 49 Dimensions of socket welding fittings E J C C B C D D B B C E D C D B J J J 90˚ Bend (long radius) Tee 45˚ Bend (long radius) Coupling D** fitting bore B socket size C socket wall J socket depth E centre-tosocket ( ± 1m) min min max/min min min 45o 90o 16 12 16.121/ 16.070 3.2 10 12 30 25 21 25.131/ 25.080 3.2 13 15.5 37.5 30 25 30.131/ 30.080 3.2 13 18.6 45 38 33 38.146/ 38.095 3.2 13 23.6 57 44.5 39.5 44.646/ 44.595 3.2 13 27.6 66.8 57 52 57.276/ 57.225 3.2 16 35.3 85.5 Size* specified OD All dimensions in millimetres. Notes: for other socket weld fitting types and dimensions - See manufacturers’ catalogues. * For inch/millimetre corrections - see Preface. ** To suit seamless 90/10 Cu Ni tubes to EEMUA Publication 234 Chapter 1. 74 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications 9. Copper alloy capillary brazing fittings 9.1 Scope and design basis Chapter nine covers proprietary capillary silver brazing fittings including unions, in sizes 16 mm up to and including 57 mm for a maximum allowable working pressure (MAWP) of 20 bar at a temperature of 38° C. In addition to 90/10 Cu Ni alloy UNS7060X* as modified in appendix D of this Publication, alternative materials are as follows: 1) Aluminium brass BS EN 1652/1653:1998, CW702R/UNS 68700 Gunmetal/bronze BS EN 1982:2008, CC 491K/UNS 83600. Union nuts may, in addition, be manufactured from aluminium bronze alloys as designated in Chapter 8 of this Specification. These fittings are intended for use with seamless 90/10 Cu Ni tubes to EEMUA Publication 234: Chapter 1. Integral silver brazing alloy wire rings shall be incorporated in the sockets as part of the fitting design. The brazing alloy used shall comply with the requirements of BS EN ISO 17672:2010(38) type AG155 or American Welding Society Specification AWS-A5.8:2011 BAg 28. As there are no testing requirements to ensure the adequacy of the volume of integral silver brazing alloy in the fittings, the manufacturer shall demonstrate the acceptability of his product by means of procedure tests in accordance with ASME Boiler and Pressure Vessel Code Section IX Section QB. The procedure tests shall be performed on samples representative of each size of outlet. Such joints shall be made up in accordance with ASME B31.3-2014, Section 317.2 “Brazed and braze welded joints”. The adequacy of union type fittings shall be established by proof testing in accordance with Section 9.5 of this Chapter. Note: The use of an anti-galling compound on the threads of union fittings, compatible with the material of the fitting, shall be considered. 9.2 Information to be supplied by the Purchaser The Purchaser shall state in the enquiry and order the following information: (a) (b) (c) (d) (e) (f) The title and number of this Chapter (EEMUA Publication 234 Chapter 9). The type of fitting and size in inches and millimetres and material designation. Whether certificates of compliance are required -(see Section 9.8). Whether it is his intention to inspect the material at supplier’s works (see Chapter 14). Whether any additional identification marking other than that specified herein is required. Whether any test samples or individual test analyses are required to be supplied (see Chapter 14). 9.3 Freedom from defects The fittings shall be visually clean, smooth and free from harmful defects greater than 0.5 mm in depth, irregularities, scale or deposits and shall be free from deleterious films in the bore. Cast fittings shall be sound, free from laps, blow holes, pitting and free from sand. They shall be neatly dressed and none shall be burned, plugged or patched. Copyright EEMUA 75 Copper nickel alloy piping for offshore applications 9.4 Materials and manufacture Publication234 Table 50 Basis for hydraulic proof pressure test of assembled union joints Fittings in 90/10 Cu Ni and aluminium brass shall be manufactured by hot forging. or cold forging followed by annealing or machined from forging stock*33 , with chemical composition in accordance with Appendix D of this Specification for 90/10 Cu Ni and in accordance with alloy CW702R [UNS 68700] in Table 2 of BS EN 1652/1653:1998 for aluminium brass. Cast fittings in alloy CC491K [UNS 83600] shall be produced by shell moulding or by sand casting processes with chemical composition in accordance with BS EN 1982:2008, Table 23b. The dimensions of capillary brazed fittings shall comply with the requirements of Table 51 of this Publication. All ends of the brazing sockets shall be at right angles to the axis of the fitting. The sockets shall be of uniform depth and circularity. All female ends and male stud ends shall be threaded NPT (US standard taper pipe thread) to ASME B1.20.1-2013 (other thread forms may be used for the union part of union type fittings). 9.5 Proof tests for adequacy of capillary brazing union type fittings (prototype test) 76 EEMUA Copyright Maximum allowable working pressure mm** bar 16 106 25 70 30 30 38 30 44.5 30 57 30 **For inch/millimetre correlation - see Preface. To determine the relative strength and leak tightness of union fittings, straight tube of the designated size and wall thickness shall be brazed in each end of the capillary brazed type union, at least 150 mm in length. Proper end closures shall be applied beyond the minimum length of straight tube. The fittings and their component parts when assembled at normal atmospheric temperature and in accordance with the manufacturer’s instructions shall be capable of withstanding an internal hydraulic pressure of 1.5 times the stated maximum working pressure without showing signs of leakage or distress in the fittings or joint. The pressure shall be maintained for 15 minutes. *33 The maximum working pressures required for fittings to this section are those given in Table 50 for temperatures up to and including 75° C when assembled with appropriate size and tube thickness. Size of union fitting Forging stock: forged, rolled or extruded bar (solid or hollow) intended for the production of forgings. Only straight fittings, e.g. couplings may be machined directly from forging stock. Publication234 The union joints shall be broken down and reassembled three times (with the cone and seat rotated through 90°relative to one another on each occasion) and retested to 1.5 times the stated maximum working pressure and maintained for 15 minutes and shall provide a sound joint on each occasion. 9.6 Marking 9.6.1: All fittings shall be individually and permanently marked and identified by clear legible printing by means of a vibratory etching tool or by electro-chemical etching as follows: (a) (b) (c) (d) (e) Purchase order number (PO). The number of this section (EEMUA Publication 234 Chapter 9). Material designation. Size: inches and millimetres. Manufacturer’s name or trademark (MTM). Copper nickel alloy piping for offshore applications 9.7 Inspection and testing This Section does not make provision for the routine pressure testing of fittings. They shall however, be dimensionally correct and be marked in accordance with this section. All fittings shall be capable of withstanding without leakage or signs of distress a hydraulic pressure of 30 bar. However, for cast fittings after all machining and threading operations have been completed each body shall be tested for porosity as follows: The application of an internal air pressure test of not less than 5 bar and not more than 7 bar: (a) (b) Whilst the fitting is completely immersed in water for a minimum of three seconds. or By a leak detection system no less effective or suitable than (a), for example by an electronic test. Example of marking: PO 234/9 CW 702R 2/57 MTM 9.6.2: On fittings where it is not practical to apply the full requirements of Section 9.6.1. the marking shall detail: (a) Material designation. (b) Size: inches and millimetres. (c) Manufacturer’s name or trademark (MTM). The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the components. The label shall be clearly and permanently marked. Alternatively, the additional marking requirements shall be applied to the carton in which the fittings are packed. When so tested the fittings shall show no signs of leakage or distress. 9.8 Certification If so specified in the enquiry and order a certificate of compliance shall be supplied. The certificate for compliance shall state that the fittings have been manufactured in accordance with all the requirements of this section (EEMUA Publication 234 Chapter 9). Note: Stamping fittings with metallic stamps is not permitted. Copyright EEMUA 77 Copper nickel alloy piping for offshore applications Publication234 Table 51 Dimensions of capillary brazing fittings B B D D D B D G B G G G Elbow Tee 45˚ Elbow Coupling G = Inset Brazing Alloy Ring Size* specified OD D** Fitting bore min B Socket size max/min 16 12 16.121/ 16.070 25 21 25.131/ 25.080 30 25 30.131/ 30.080 38 33 38.146/ 38.095 44.5 39.5 44.646/ 44.595 57 52 57.276/ 57.225 All dimensions in millimetres. Note: For other capillary fittings types and dimensions -see manufacturers’ catalogues. * For inch/millimetre correlation - see Preface. ** To suit nominal bores of seamless 90/10 Cu Ni tubes of EEMUA Publication 234 Chapter 1. 78 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 10. Copper alloy flareless nonmanipulative type compression fittings 10.1 Scope and design basis Section four covers flareless proprietary non-manipulative type compression fittings in sizes 16 mm up to and including 57 mm for a maximum allowable working pressure (MAWP) of 20 bar at 38° C. In addition to 90/10 Cu Ni Alloy UNS 7060X*34, as modified in Appendix D of this Publication, alternative materials are as follows: Aluminium bronze (BS Alloy CW 307G/UNS 63200). 70/30 Cu Ni (BS Alloy CW 345H/UNS 71500). Gunmetal (bronze) (BS Alloy CC 491K/UNS 83600). Where other non-ferrous alloys are used, reference should be made to BS MA 18:1973 for design limitations and compatibility. These fittings are intended for use with seamless 90/10 Cu Ni tubes to EEMUA Publication 234: Chapter 1. The adequacy of non-manipulative type fittings shall be established by proof testing in accordance with Section 10.5 of this Chapter. All female ends and male stud ends shall be threaded NPT (US Standard taper pipe thread) to ASME B1.20.1-2013. Note: The use of an anti-galling compound on the threads compatible with the material of the fitting shall be considered. 10.2 Information to be supplied by the Purchaser The Purchaser shall state in the enquiry and order the following information: (a) (b) (c) (d) (e) (f) The title and number of this section (Publication 234 Chapter 10). Fitting type and size in inches and millimetres and material designation. Whether certificates of compliance are required (see Section 10.8). Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Any additional identification marking other than that specified herein is required. Whether any test samples or individual test analyses are required to be supplied (see Chapter 14). 10.3 Freedom from defects The fittings shall be visibly clean, smooth and free from harmful defects greater than 0.5 mm in depth, irregularities, scale or deposits and shall be free from deleterious films in the bore. Cast fittings shall be sound, free from laps, blow holes, pitting and free from sand. They shall be neatly dressed and none shall be burned, plugged, stopped or patched. *34 Alloy UNS 7060X is a modified form of the following material designated alloys UNS 70600, BS CW352H and DIN 2.0872. See appendix C of this publication for chemical composition and mechanical properties. Copyright EEMUA 79 Copper nickel alloy piping for offshore applications 10.4 Materials and manufacture Publication234 Table 52 Basis for hydraulic proof pressure test of assembled non-manipulative compression joints Wrought fittings shall be manufactured by hot forging, or cold forging followed by annealing, or machined from forging stock*35 with chemical composition as modified in accordance with Appendix D of this Publication for 90/10 Cu Ni. Other materials shall have chemical compositions in accordance with the following Specifications: BS Alloy CW 307G (UNS 63200) BS EN 1652/1653:1998 BS Alloy CW 345H (UNS 71500) BS EN 1652/1653:1998 UNS 64200 - ASTM B124-14 Cast fittings shall be manufactured by shell moulding or sand casting processes with chemical composition in accordance with Alloy CC491K (UNS 83600) – BS EN 1982:2008. The dimensions of compression fittings shall be such that they comply with the requirements of Table 52 and are suitable for use with annealed 90/10 Cu Ni tubes with outside diameters and specified wall thicknesses given in Chapter 1. 10.5 Proof test for adequacy of compression fittings (prototype test) The maximum allowable working pressures (MAWP) are those given in Table 52 for temperatures up to and including 75° C when assembled with the appropriate size and thickness of tube. Fitting size Maximum allowable working pressure mm* bar 16 106 25 70 30 30 38 30 44.5 30 57 30 For inch/millimetre correlation - see Preface. * To determine the relative strength and leak tightness of compression type joints, straight pipe of the designated size and wall thickness shall be attached to each end of the compression fitting and shall be at least 150 mm in length. Proper end enclosures shall be applied beyond the minimum length of straight tube. The fittings and their component parts when assembled at normal atmospheric temperature and in accordance with the manufacturer’s instructions shall be capable of withstanding an internal hydraulic pressure of 1.5 times the maximum working pressure specified in Table 52 above without showing signs of leakage or distress in the fitting or the joint. The pressure shall be maintained for 15 minutes. The joints shall be broken down and reassembled three times (with the compression ring (and tube) and seat rotated through 90o relative to one another on each occasion) and retested to 1.5 times the maximum working pressure specified in Table 52 above and maintained for 15 minutes and shall provide a sound joint on each occasion. *35 Forging stock: forged, rolled or extruded bar (solid or hollow) intended for the production of forgings. Only straight fittings e.g. couplings may be machined directly from forging stock. 80 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications 10.6 Marking 10.7 Inspection and testing 10.6.1: All fittings shall be individually and permanently marked and identified by clear legible printing by means of a vibratory etching tool or by electro-chemical etching, as follows: This section does not make provision for the routine pressure testing of fittings. They shall however be dimensionally correct and be marked in accordance with this section. All fittings shall be capable of withstanding without leakage or signs of distress a hydraulic pressure of 30 bar. (a) (b) (c) (d) (e) Purchase order number (PO). The number of this section (EEMUA Publication 234 Chapter 10). Material designation. Size: inches and millimetres. Manufacturer’s name or trademark (MTM). Example of Marking: PO 234/10 CC491K 1.5/44.5 MTM 10.6.2: On fittings where it is not practical to apply the full requirements of Section 10.6.1 to the fitting the marking shall detail: (a) Material designation. (b) Size: inches and millimetres. (c) Manufacturer’s name or trademark (MTM). The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the fitting and which shall be permanently marked. Alternatively the additional marking requirements shall be applied to the carton in which the fittings are packed. Note: Stamping fittings with metallic stamps is not permitted. However, for cast fittings after all machining and threading operations have been completed, each body shall be tested for porosity as follows: (a) (b) The application of an internal hydraulic pressure of not less than 30 bar for a minimum of 10 seconds, or The application of an internal pneumatic pressure of not less than 5 bar and not more than 7 bar, whilst the fitting is completely immersed in water for a minimum of 3 seconds. When so tested the fittings shall show no signs of leakage or distress. 10.8 Certification If so specified on the enquiry and order a certificate of compliance shall be supplied. The certificate of compliance shall state that the fittings have been manufactured in accordance with all the requirements of this section (EEMUA Publication 234: Chapter 10). Copyright EEMUA 81 Copper nickel alloy piping for offshore applications Publication234 Table 53 Dimensions of flareless non-manipulative compression fittings D D D D Elbow 45˚ Elbow Tee Coupling Size* specified OD D** Fitting bore min 16 12 25 21 30 25 38 33 44.5 39.5 57 52 All dimensions in millimetres. Note: For other compression fitting types and dimensions see manufacturer’s catalogues. * For inchl/millimetre correlation -see Preface. ** To suit seamless 90/10 Cu Ni tubes of EEMUA Publication 234: Chapter 1. 82 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 11. Copper alloy threaded fittings 11.1 Scope and design basis Chapter five covers threaded type fittings such as couplings, caps, plugs and bushes as shown in Tables 54 and 55 with dimensions generally in accordance with ANSI B16.11-2011 and NPT threads in accordance with ASME B1.20.1-2013, (American National Standard for Pipe Threads) in the following nominal pipe sizes ½”, ¾”, 1¼”, 1½”, and 2” for a maximum allowable working pressure of 20 bar at a temperature of 38° C. Other sizes may be supplied as agreed between the Purchaser and manufacturer. The diameter and thickness (Schedule No) of tubes for threading, or for the manufacture of barrel type nipples, shall be as given in Table 56. In addition to 90/10 Cu Ni alloy (UNS 7060X*36 as modified in Appendix D of this Specification), alternative materials (for caps, plugs and bushings only) are as follows: BS Alloy CW 702R/UNS 68700 (Aluminium Brass) BS Alloy CC 491K/UNS 83600 (Gunmetal Bronze) BS Alloy CW 307G/UNS 63200 (Aluminium Bronze) UNS 64200 (Aluminium Bronze) Where other non-ferrous alloys are used reference should be made to BS MA 18:1973 for compatibility. Note: The use of an anti-galling compound on the threads compatible with the material of the fitting shall be considered. 11.2 Information to be supplied by the Purchaser The Purchaser shall state in the enquiry and order the following information: (a) (b) The title and number of this section (EEMUA Publication 234 Chapter 11). The type of fitting or bushing and size in inches and millimetres and material designation. Note: Although not covered by this Specification when barrel nipples are required, the overall length, thickness and whether one or both ends are required to be threaded (NPT) shall be stated on the enquiry and order. (c) (d) (e) (f) *36 Whether certificates of compliance are required (See Section 11.7). Whether it is his intention to inspect material at the suppliers’ works (see Chapter 14). Whether any additional identification marking other than that specified herein is required. Whether any test samples or individual test analyses are required to be supplied (See Chapter 14). UNS 7060X is a modified form of the following national designated alloys UNS 70600, as CW 352N and DIN 2.0872. See appendix D of this specification for chemical composition and mechanical properties. Copyright EEMUA 83 Copper nickel alloy piping for offshore applications Publication234 11.3 Freedom from defects 11.5 Marking The fittings shall be visibly clean, smooth and free from harmful defects greater than 0.5 mm in depth and free from deleterious films in the bores. Cast fittings shall, in addition, be sound, free from laps, blow holes, pitting and free from sand. The cast fittings shall be neatly dressed and none shall be burned, plugged, stopped or patched. 11.5.1: All fittings shall be individually and permanently marked and identified by clear legible printing by means of a vibratory etching tool or by electro-chemical etching as follows: 11.4 Materials and manufacture Wrought fittings shall be manufactured by hot forging or cold forging followed by annealing, or machined from forging stock*37 or seamless tube with chemical composition as modified in accordance with Appendix D of this Publication for 90/10 Cu Ni alloy (UNS 7060X). Other materials shall have chemical compositions in accordance with the following Specifications: BS Alloy CW 702R (UNS 68700) BS EN 1652/1653:1998 BS Alloy CW 307G (UNS 63200) BS EN 1652/1653:1998 UNS 64200 - ASTM B124-14: Cast fittings shall be manufactured by shell moulding or sand casting processes with chemical composition in accordance with BSEN 1982:2008: alloy CC 491K or ASTM B62 alloy UNS 83600. Dimensions of threaded fittings shall be in accordance with Tables 54 and 55. The dimensions of barrel nipples, including length(s) and threading requirements, shall be as specified by the Purchaser. (a) (b) (c) (d) (e) Purchase Order Number (PO). The title and number of this Chapter - (EEMUA Publication 234 Chapter 11). Material designation. Size: inches and millimetres (see Table 56). Manufacturer’s name or trademark (MTM). Example of marking: PO 234/11 CW 702R 1¼/42.2 MTM 11.5.2: On fittings where it is not practical to apply the full requirements of 5.5.1 the marking shall detail: (a) Material designation. (b) Size: inches and millimetres (See Table 56). (c) Manufacturer’s name or trademark (MTM). The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the fitting and which shall be permanently marked. Alternatively the additional marking requirements shall be applied to the carton in which the fittings are packed. Note: Stamping fittings with metallic stamps is not permitted. *37 Forging stock - forged, rolled or extruded bar (solid or hollow) intended for the production offorgings. Only straight fittings e.g. couplings may be machined directly from forging stock. 84 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications 11.6 Inspection and testing This section does not make provision for the routine pressure testing of fittings. They shall, however, be dimensionally correct and be marked in accordance with this section. All fittings apart from plugs shall be capable of withstanding without leakage or signs of distress a hydraulic pressure of 30 bar. However, for cast caps or bushings, after all machinery and threading operations have been completed, each body shall be tested for porosity as follows: (a) (b) The application of an internal hydraulic pressure of not less than 30 bar for a minimum of 10 seconds, or The application of an internal pneumatic pressure of not less than 5 bar and not more than 7 bar whilst the fitting is completely immersed in water for a minimum of 3 seconds. When so tested the fittings shall show no signs of leakage or distress. 11.7 Certification If so specified in the enquiry and order a certificate of compliance shall be supplied. The certificate of compliance shall state that the fittings have been manufactured in accordance with all the requirements of this section (EEMUA Publication 234 Chapter 11). Copyright EEMUA 85 Copper nickel alloy piping for offshore applications Publication234 Table 54 Dimensions of copper alloy threaded plugs and bushings F F E C B H A Square Head Plug D G A Hex. Head Plug A Round Head Plug Hex. Head Bushing A Flush Bushing Copper alloy plugs and bushings Plugs-square head Plugs-round head Length A Height of square B Width of flats C Diameter of head E Length D Width of flats F min min min nom nom ½ 14.5 10 14.5 21 ¾ 16.0 11 16.0 1 19.0 13 1¼ 20.5 1½ 2 Nominal pipe size in EEMUA Copyright Hex height Bushing G Plug G nom min min 44 22 5 8 27 44 27 6 10 20.5 33 51 35 6 10 14 24.0 43 51 44.5 7 14 20.5 16 28.5 48 51 51 8 16 22.0 17 33.5 60 64 63.5 9 17 All dimensions in millimetres unless otherwise indicated. 86 Plugs-hex head & bushings Copper nickel alloy piping for offshore applications Publication234 Table 55 Dimension of copper alloy threaded couplings. Half couplings and caps J W L2 B D W 2 B P L2 D CouplingH B L2 D alf CouplingC ap Copper alloy threaded fittings Nominal pipe size in Lengthcouplings W min Length-caps P min Outside diameter D min End wall thickness J min ½ 48 32 29 ¾ 51 37 1 60 1¼ Length of** thread B min L2 min 6.5 11 13.5 35 6.5 12.5 14 38 44 6.5* 14.5 17.5 67 41 57 6.5* 17 18 1½ 79 41 64 6.5* 18 18.5 2 86 42 76 6.5* 19 19 All dimensions in millimetres unless otherwise stated. * These thicknesses are less than the corresponding values specified in ASME B16.11-2011 for class 3000 caps. ** Dim “B” is the minimum length of full thread. The length of useful thread (“B” plus threads with fully formed roots and flat crests) shall not be less than “L2” - effective length of external thread required in ASME B1.20.1-2013. Copyright EEMUA 87 Copper nickel alloy piping for offshore applications Publication234 Table 56 Dimensions of 90/10 Cu Ni alloy tubes suitable for screwing NPT to ASME B1.20.1-2013* Outside diameter Nominal in Thickness Actual mm Schedule No. mm ½ 21.3 4.78 ¾ 26.7 5.56 1 33.4 1¼ 42.2 1½ 48.3 7.14 2 60.3 8.74 160 6.35 6.35 * The dimensions to the above Table have been chosen to be suitable for threading NPT to ASME B1.20.1 and shall be used for the manufacture of barrel nipples where the requirements for length, and whether one or both ends are required to be threaded, shall be specified by the Purchaser. + Subject to the tolerances permitted by the applicable Specification. 88 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 12. 90/10 Cu Ni self-reinforced branch connection fittings 12.1 Scope and design basis Chapter twelve covers wrought proprietary self-reinforced branch connectors in 90/10 Cu Ni alloy UNS 7060X*38 as modified in Appendix D of this Specification for maximum allowable working pressures (MAWP) of 16 or 20 bar at 75° C and 38° C respectively. The dimensions and tolerances are such that they are suitable for welding to seamless or seam-welded 90/10 Cu Ni tubes to EEMUA Publication 234 Chapters 1 and 2 respectively. Self-reinforced branch connectors covered are suitable for application to headers sizes ½ in/16 mm up to 24 in/610 mm. Butt welding type connectors cover branch sizes up to and including the same as the header, whilst the branches of socket welding type and threaded type connectors are limited to 2 in/57 mm and 2 in NPT respectively. A design feature of self-reinforced branch connectors shall include the additional compensatory reinforcement necessary to comply with the requirements of Section 304.3 (Branch Connections) in ASME B31.3:2014 “Process Piping”. In addition the design shall include such features as will promote as smooth an entry into the connection as practicable in order to reduce the effects of turbulence and risk of subsequent corrosion. The design features, including reinforcement, may be established by mathematical analyses contained in a nationally recognised pressure vessel or piping code, as agreed between the Manufacturer and Purchaser. The design of connectors which cannot be qualified by such analyses shall be established in accordance with the proof testing procedure in Clause 9 of ASME B16.9-2012. The basic overall dimensions of proprietary branch connectors are given in Tables 57, 58 and 59. Threaded type branch connectors shall have NPT threads to ASME B1.20.1-2013. Note: The use of an anti-galling compound on the threads compatible with the fitting material shall be considered. 12.2 Information to be supplied by the Purchaser The Purchaser shall state in the enquiry and order the following information: (a) (b) (c) (d) (e) (f) (g) *38 The title and number of this Chapter (EEMUA Publication Chapter 12) and material designation. Fitting type (i.e. butt, socket welding or threaded) and size in inches and millimetres. The pressure rating -16 or 20 bar (butt welding type only). Whether manufacturer’s certificates are required (see Section 12.8). Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Whether any additional identification marking other than that specified herein is required. Whether any test samples or individual analyses are required to be supplied (see Chapter 14). Alloy UNS 7060X is a modified form of the following national designated alloys UNS 70600. BS CW 352N and DIN 2.0872. See appendix D of this specification for chemical composition and mechanical properties. Copyright EEMUA 89 Copper nickel alloy piping for offshore applications Publication234 12.3 Pressure/temperature ratings Example of marking: PO 234/12 7060X 14/368 x 2/57 16 MTM TCN Cast No. Pressure/temperature ratings are the maximum allowable working pressure (MAWP) shown in Appendix E. 12.6.2: Where it is not practical to apply the full requirements of Section 12.6.1 to the connector, the marking shall detail: The temperature shown for a corresponding pressure rating shall be considered to be that of the contained fluid. (a) (b) (c) (d) (e) 12.4 Freedom from defects The connectors shall be visually clean, smooth and free from harmful defects greater than 0.5 mm in depth, irregularities, scale or deposit and shall be free from deleterious films in the bore. The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the connector. The labels shall be clearly and permanently marked. 12.5 Materials and manufacture Note: Stamping with metallic stamps is not permitted. The connectors shall be manufactured by hot forging, or cold forging followed by annealing or machined from forging stock*39 with chemical composition in accordance with Appendix D. The mechanical properties of the connectors shall comply with the requirements of Appendix D. The overall dimensions and tolerances of connectors shall comply with the requirements of Tables 57, 58 and 59. 12.6 Marking 12.6.1: All connectors shall be individually permanently marked and identified by clear legible printing by means of a vibratory etching tool or electrochemical etching as follows: (a) (b) (c) (d) (e) (f) (g) (h) 90 Material designation. Cast Number. Size: inches and millimetres. Manufacturer’s name or trademark (MTM). Pressure rating -16 or 20 bar. Purchase order number (PO). The number of this Chapter (EEMUA Publication 234 Chapter 12). Material designation UNS 7060X. Size: inches and millimetres. Pressure rating -16 or 20 bar. Manufacturer’s name or trademark (MTM). Test certificate number (TCN). Cast number. EEMUA Copyright 12.7 Inspection and testing This Section does not make provision for routine pressure testing of branch connectors. They shall, however, be dimensionally correct and be marked in accordance with this Section. All connectors shall be capable of withstanding without leakage or signs of distress a hydraulic pressure of 1.5 times the maximum design pressure at ambient temperature as follows: 16 bar rated fittings, test pressure = 24 bar. 20 bar rated fittings, test pressure = 30 bar. *39 Forging stock forged, rolled or extruded bar (solid or hollow) intended for the production of forgings. Publication234 Copper nickel alloy piping for offshore applications 12.8 Certification Certificates shall be supplied, either: 12.8.1: A certificate of compliance which shall state that the connectors have been manufactured in accordance with all the requirements of this Specification (EEMUA Publication 234 Chapter 12) or: 12.8.2: A manufacturer’s certificate(s) which shall state that the connectors have been manufactured in accordance with all the requirements of this Specification (EEMUA Publication 234 Chapter 12) and: (a) (b) State the actual compositional limits determined for each of the elements of the cast used in the manufacture of each batch or order in accordance with Appendix D. State the results of mechanical tests performed on each cast used in the manufacture of each batch or order in accordance with Appendix D. Note: Individual cast analyses shall be retained by the manufacturer - see Chapter 14. Copyright EEMUA 91 Copper nickel alloy piping for offshore applications Publication234 Table 57 Self reinforced branch connection fittings (butt welding type) Branch specified OD* 16 25 30 38 44.5 57 76.1 88.9 108 92 t A nom max min specified min 16 - 44.5 19.05 12.445 11.565 2.0 1.8 57 - 610 17.5 12.445 11.565 2.0 1.8 25 - 44.5 22.2 21.445 20.575 2.0 1.8 57 - 610 20.6 21.445 20.575 2.0 1.8 30 - 44.5 27.0 25.555 24.475 2.5 2.25 57 - 610 22.2 25.555 24.475 2.5 2.25 38 - 44.5 30.2 33.57 32.49 2.5 2.25 57 - 610 25.4 33.57 32.49 2.5 2.25 44.5 - 33.3 40.07 38.99 2.5 2.25 57 - 610 28.6 40.07 38.99 2.5 2.25 57 - 76.1 38.1 52.70 51.62 2.5 2.25 88.9 - 610 33.3 52.70 51.62 2.5 2.25 76.1 - 108 47.6 71.80 70.65 2.5 2.25 159 - 610 44.5 71.80 70.65 2.5 2.25 88.9 - 108 47.6 84.65 83.50 2.5 2.25 159 - 610 44.5 84.65 83.50 2.5 2.25 108 - 46.8 102.85 101.40 3.0 2.70 159 - 52.4 102.85 101.40 3.0 2.70 219.1 - 610 49.2 102.85 101.40 3.0 2.70 159 159 - 610 60.3 219.1 219.1 - 610 69.9 267 267 - 610 77.8 323.9 323.9 - 610 85.7 368 368 - 610 88.9 419 419 - 610 93.7 457.2 457.2 - 610 96.8 508 508 - 610 115.9 610 610 - 115.9 EEMUA Copyright B** (bore) Header size range when t > 3 1.6 + 0.8mm t 37.5˚ + 2.5˚ B** A 49˚ + 2.5˚ Internal radius see section 10.1 R R = Radius of Header Piper = O/D 2 Copper nickel alloy piping for offshore applications Publication234 Table 58 Self reinforced branch connection fittings (socket welding type) d** B a A 40˚ + 2.5˚ Internal radius see section 10.1 R R = Radius of Header Piper = O/D 2 d** Branch specified OD* Header size range a nom max 16 25 - 44.5 57 - 914 10 10 25 30 - 44.5 57 - 914 30 38 B (bore) min A nom max min 16.121 16.121 16.070 16.070 25.4 23.8 12.445 12.445 11.565 11.565 13 13 25.131 25.131 25.080 25.080 26.9 25.4 21.445 21.445 20.575 20.575 38 - 44.5 57 - 914 13 13 30.131 30.131 30.080 30.080 33.3 28.6 25.555 25.555 24.475 24.475 57 - 914 13 38.146 38.095 33.3 33.57 32.49 44.5 57 - 914 13 44.646 44.595 30.2 40.07 38.99 57 76.1 - 914 16 57.276 57.225 38.1 52.70 51.62 Copyright EEMUA 93 Copper nickel alloy piping for offshore applications Publication234 Table 59 Self reinforced branch connection fittings (threaded type) NPT B a A 40˚ + 2.5˚ Internal radius see section 10.1 R R = Radius of Header Piper = O/D 2 Nominal branch size in (NPT)* Header size range min/max A nom B (bore) nom Pipe schedule number and thickness Length of thread a** min ½ 25 - 44.5 57 - 914 25.4 23.8 11.74 11.74 160 - 4.78 13.5 13.5 ¾ 30 - 44.5 57 - 914 26.9 25.4 15.58 15.58 160 - 5.56 14 14 1 38 - 44.5 57 - 914 33.3 28.6 20.70 20.70 160 - 6.35 17.5 17.5 1¼ 57 - 914 33.3 29.50 160 - 6.35 18 1½ 57 - 914 30.2 34.02 160 - 7.14 18.5 2 76.1 - 914 38.1 42.82 160 - 8.74 19 All dimensions in millimetres unless otherwise indicated. * See Table 56 of section 5 of this Specification. ** The length of threading shall not be less than 2 threads in addition to dimension “a”. 94 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications 13. 90/10 Cu Ni saddle pieces 13.1 Scope and design basis Chapter thirteen covers requirements for seamless saddle pieces for use in header sizes 6 in/159 mm up to 36 in/914 mm for a MAWP of 16 bar whereas sizes 1¼ in/38 mm up to 24 in/610 mm covers a MAWP of 20 bar. Seam-welded saddle pieces are applicable to header sizes 12 in/323.9 mm up to 36 in/914 mm for 16 bar rating and 12 in/323.9 mm up to 24 in/610 mm for 20 bar rating. The design features, including reinforcement, may be established by mathematical analyses contained in a nationally recognised pressure vessel or piping code as agreed between the manufacturer and Purchaser. The design of saddle pieces which cannot be qualified by such analyses shall be proof tested in accordance with ASME Boiler and Pressure Vessel Code Section VIII Division 1. 13.2 Information to be supplied by the Purchaser The Purchaser shall state in the enquiry and order the following information. (a) (b) (c) (d) (e) (f) (g) The title and number of this Specification (EEMUA Publication 234 Chapter 13) and designation of the material, see Appendix D. The type of saddle and size in inches and millimetres. The pressure rating -16 bar or 20 bar. Whether manufacturer’s certificates are required (see Section 13.13). Whether it is his intention to inspect the material at the supplier’s works (see Chapter 14). Whether any additional identification marking other than that specified herein is required. Whether any test samples or individual analyses are required to be supplied - see Chapter 14. 13.3 Pressure/temperature ratings Pressure/temperature ratings are the maximum allowable working pressure (MAWP) shown in Appendix E. The temperature shown for a corresponding pressure rating shall be considered to be that of the contained fluid. 13.4 Freedom from defects The saddles shall be visually clean, smooth and free from harmful defects greater than 0.5 mm in depth, irregularities, scale or deposits and shall be free from deleterious films in the bore. Any repairs by welding shall be limited to seam-welds only. 13.5 Materials and manufacture The saddles shall be seamless or seam-welded and manufactured from tube (pipe) sheet or plate as follows: Tubes (seamless) shall have chemical composition and mechanical properties in accordance with Table 5 of this Publication. Tubes (seam-welded) shall have chemical composition and mechanical properties in accordance with Table 10 of this Publication. Sheets or plates shall be hot rolled or cold rolled and annealed in accordance with BS EN 1652/1653:1998 but with chemical composition as modified in this Specification. See Appendix D. The overall dimensions and tolerances of seamless saddle pieces shall comply with the requirements of Tables 60 and 62, Tables 61 and 63. Seamwelded saddle pieces shall comply with the requirements of Tables 60 and 64, Tables 61 and 65. Copyright EEMUA 95 Copper nickel alloy piping for offshore applications 13.6 Welding 13.8 Non-destructive testing 13.6.1 Consumables 13.8.1 Liquid dye penetrant test The composition of the filler wire or rods used for the production of seam welds shall be selected from BS EN ISO 24373:2009, Table 1 - alloy Cu7158. The weld seams of all welded saddles shall be examined by the liquid dye penetrant method in accordance with ASME Boiler and Pressure Vessel Code Section V, Article 6 and shall meet the acceptance requirements of ASME Boiler and Pressure Vessel Code Section VIII. Division 1, Appendix 8. Alternatively filler wires and rods shall be selected from the American Welding Society Specification AWS-A5.7 -Class ER Cu Ni. Flux coated electrodes shall be selected from the American Welding Society Specification AWS A5.6 -Class E Cu Ni. 13.6.2 Welding procedure qualification The welding procedure qualifications shall be as quoted in ASME Boiler and Pressure Vessel Code Section IX “Qualification Standard for Welding ,and Brazing Procedures, Welders, Brazers and Welding and Brazing Operators.” 13.6.3. Welder qualification The welder qualification shall be in accordance with ASME Boiler and Pressure Vessel Code Section IX. 13.7 Selection of test samples For saddles produced from seamless tube or from hot rolled or cold rolled and annealed sheet or plate, samples shall be selected as follows: (a) (b) 96 Publication234 Seamless tube in accordance with Section 1.6, selection of Test Samples of Chapter 1 for seamless 90/10 Cu Ni Tubes. The analysis and mechanical properties of the tube used to produce the saddles shall comply with the requirements of Appendix D of this Specification. Sheet/plate in accordance with BS EN 1652/1653:1998 Section 7. The analysis and mechanical properties of each sheet or plate used to, produce the saddles shall comply with the requirements of appendix D of this Specification. EEMUA Copyright 13.8.2 Radiography Radiographic examination shall be performed for the complete length of each weld to meet the requirements of ASME Boiler and Pressure Vessel Code Section VIII, UW51. 13.9 Repairs to weld seams Visible defects such as cracks, pinholes and incomplete fusion and defects detected by the tests performed under Section 13.8 shall be removed and repaired in accordance with Section 13.6. 13.10 Retest of repairs A repaired weld seam shall meet the requirements of the original weld and be re-examined and retested in accordance with Section.13.8.1 and 13.8.2. Saddle pieces. Publication234 Copper nickel alloy piping for offshore applications 13.11 Marking 13.12 Inspection and testing 13.11.1: All saddles shall be individually permanently marked and identified by clear, legible printing by means of a vibratory etching tool, electro chemical etching, paint or ink stencilling and where applicable. in such colours as to be clearly visible as follows: This Section does not make provision for routine pressure testing of saddles. They shall, however, be dimensionally correct and be marked in accordance with this section. All saddles when welded into appropriate header pipes selected from EEMUA Publication 234 Chapter 1 or 2 shall be capable of withstanding without leakage or signs of distress a hydraulic pressure of 1.5 times the maximum design pressure at ambient temperature as follows: (a) (b) (c) (d) (e) (f) (g) (h) (i) Purchase Order Number (PO). The number of this Chapter (EEMUA Publication 234 Chapter 13). Material designation UNS 7060X. Size: inches and millimetres. Pressure rating -16 or 20 bar. Manufacturer’s name or trademark (MTM). Test certificate number (TCN). Cast number. Where applicable -welder identity (WI). Example of marking: PO 234/13 7060X 14/368 20 MTM TCN Cast No WI 13.11.2: Where the maximum size is 1½”/44.5 mm and smaller and where it is not practical to apply the full requirements of Section 13.11.1 the marking shall detail: (a) (b) (c) (d) (e) Material designation. Cast Number. Manufacturer’s name or trademark (MTM). Size: inches and millimetres. Pressure rating 20 bar. The remainder of the marking requirements shall be applied to indestructible type labels securely attached to the component. The labels shall be clearly and ‘permanently marked. 16 bar rated saddles - 24 bar. 20 bar rated saddles - 30 bar. 13.13 Certification Certificate(s) shall be supplied, either: 13.13.1: A certificate of compliance which shall state that the saddles have been made in accordance with all the requirements of this Chapter (EEMUA Publication 234 Chapter 13) or: 13.13.2: A manufacturers’ certificate which shall state that the saddles have be made in accordance with all the requirements of this Chapter (EEMUA Publication 234 Chapter 13) and: (a) State the actual compositional limits determined for each of the elements designated in appendix D of the casts used in the manufacture of each order for seamless tubes used to manufacture fittings and/or: Note 1: Stamping with metallic stamps is not permitted. Note 2: Manufacturers shall ensure that any marking materials used shall not be detrimental to the material of the fittings. Copyright EEMUA 97 Copper nickel alloy piping for offshore applications Publication234 State the actual compositional limits determined for each of the elements designated in appendix D of each cast used in the manufacture of each sheet or plate used in the manufacture of fittings. A B Root face 1.6 + 0.8 37.5˚ + 2.5˚ Slope 1:4 Note: Individual cast analyses shall be retained by the manufacturer (see Chapter 14). (b) (c) State the results of mechanical tests performed on the seamless tubes, used to manufacture fittings in accordance with Appendix D and/or state the results of mechanical tests performed on sheets or plates formed into fittings in accordance with Appendix D. State, if applicable, that dye penetrant and radiographic examination of each weld on each saddle has been carried out and complies with Section 13.8. A B 45˚ min t 1 Figure 7 Dimensions of welding ends on butt welding saddle pieces See Tables 60 and 61 for dimensions A, B and t for 16 and 20 bar ratings respectively. End preparation see Figure 7 t r h H Diameter ‘H’ to match bore of header. 1 L Shape for multiple reductions Figure 8 Saddle pieces - seamless 98 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 60 Dimensions of butt welding ends 16 bar rating For tolerances see Table 62 Size* A Specified OD Pipe wall thickness t specified Inside diameter at welding ends B minimum maximun minimum 30 38 44.5 Use 20 bar See table 61 57 76.1 88.9 108 159 3.0 2.63 154.5 153.0 219.1 4.0 3.50 211.9 210.4 267 4.5 3.94 258.7 257.2 323.9 5.5 4.81 313.6 312.0 368 6.5 5.69 355.2 353.0 419 7.0 6.13 405.0 403.0 457.2 8.0 7.00 443.0 440.0 508 8.5 7.44 492.0 489.0 610 10.5 9.19 591.0 588.0 711 12.0 10.50 689.0 686.0 813 13.5 11.81 788.0 785.0 914 15.5 13.56 885.0 882.0 Note: Ovality -The ovality of finished butt welding fittings shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the specified size in column 1 of this Table. * For inch/millimetre correlation - see Preface. All dimensions in millimetres. Copyright EEMUA 99 Copper nickel alloy piping for offshore applications Publication234 Table 61 Dimensions of butt welding ends 20 bar rating Size* A Pipe wall thickness t Inside diameter at welding ends B Specified OD specified minimum maximun minimum 30 2.5 2.25 25.555 24.475 38 2.5 2.25 33.57 32.49 44.5 2.5 2.25 40.07 38.99 57 2.5 2.25 52.70 51.62 76.1 2.5 2.25 71.80 70.65 88.9 2.5 2.25 84.65 83.5 108 3.0 2.70 102.85 101.4 159 3.5 3.06 153.0 151.5 219.1 4.5 3.94 210.9 209.4 267 5.5 4.81 256.7 255.2 323.9 7.0 6.13 310.5 309.0 368 8.0 7.00 352.0 350.0 419 9.0 7.88 401.0 399.0 457.2 9.5 8.31 440.0 437.0 508 11.0 9.63 488.0 485.0 610 13.0 11.38 586.0 583.0 711 15.0 13.13 683.0 680.0 813 17.0 14.88 781.0 778.0 914 19.0 16.63 878.0 875.0 Note: Ovality - The ovality of finished butt welding fittings shall be such that the difference between the maximum and minimum diameters measured on the same cross section shall not exceed 2% of the specified size in column 1 of this Table. ** For inch/millimetre correlation - see Preface. All dimensions in millimetres. 100 EEMUA Copyright Copper nickel alloy piping for offshore applications Publication234 Table 62 Dimensions of butt welding ends 16 bar rating Size* Header Branch 38 x 2.5 to 108 x 3.0 38 x 2.5 to 108 x 3.0 All header sizes equal to or larger than branch up to and including 914 x 15.5 Dimension L Tolerance on L Dimension h Tolerance on h r Use 20 bar see table 63 323.9 x 5.5 560 267 x 4.5 447 219.1 x 4.0 379 159 x 3.0 279 108 x 3.0 188 88.9 x 2.5 149 76.1 x 2.5 126 57 x 2.5 97 44.5 x 2.5 74 38 x 2.5 64 ±6 ±5 ±4 185 155 ±2.5 90 125 80 95 60 75 40 55 30 50 ±3 100 ±1.6 25 40 20 35 15 35 13 All dimensions in millimetres Note: See also Table 60. * For inch/millimetre correlation - see Preface. Table 63 Tolerances -Seamless saddle pieces -20 bar rating Size* Header All header sizes equal to or larger than branch up to and including 610 x 13 Branch Dimension L 323.9 x 7.0 560 267 x 5.5 447 219.1 x 4.5 379 159 x 3.5 279 108 x 3.0 188 88.9 x 2.5 149 76.1 x 2.5 126 57 x 2.5 97 44.5 x 2.5 74 38 x 2.5 64 Tolerance on L ±6 ±5 ±4 Dimension h 185 155 r 100 ±2.5 90 125 80 95 60 75 40 55 30 50 ±3 Tolerance on h ±1.6 25 40 20 35 15 35 13 All dimensions in millimetres. Note: See also Table 61. * For inch/millimetre correlations - see Preface. Copyright EEMUA 101 Copper nickel alloy piping for offshore applications Publication234 A End preparation see Figure 7.1 B t h H Diameter ‘H’ to match bore of header. 1 L Figure 9 Saddle pieces - seam welded Table 64 Seam-welded saddle pieces -16 bar rating Size* Header All header sizes equal to or larger than branch in the range 323.9 x 5.5 up to and including 914 x 15.5 Branch Dimension L 914 x15.5 1550 813 x 13.5 1400 711 x 12 1225 610 x 10.5 1020 300 508 x 8.5 880 275 457.2 x 8.0 800 250 EEMUA Copyright Dimension h Tolerance on h 460 ±7 ±6 410 680 368 x 6.5 613 200 323.9 x 5.5 560 185 267 x 4.5 447 155 219.1 x 4.0 379 ±5 ±3.5 360 419 x 7.0 All dimensions in millimetres. Note: See also Figures 7, 9 and Table 60. * For inch/millimetre correlation - see Preface. 102 Tolerance on L ±3 225 125 ±2.5 ±1.6 Copper nickel alloy piping for offshore applications Publication234 Table 65 Seam-welded saddle pieces -20 bar rating Size* Header All header sizes equal to or larger than branch in the range 323.9 x 7.0 up to and including 610 x 13 Branch Dimension L 610 x 13 1020 508 x 11 880 457.2 x 9.5 800 419 x 9.0 680 Tolerance on L ±7 Dimension h 300 275 250 ±6 ±3 225 368 x 8.0 613 323.9 x 7.0 560 185 267 x 5.5 447 155 219.1 x 4.5 379 ±5 Tolerance on h 200 125 ±2.5 ±1.6 All dimensions in millimetres. Note: See also Figures 7, 9 and Table 61. * For inch/millimetre correlation - see Preface. Copyright EEMUA 103 Copper nickel alloy piping for offshore applications 104 EEMUA Copyright Publication234 Publication234 Copper nickel alloy piping for offshore applications 14. Discretionary contractual clauses 14.1 Inspection 14.1.4 Fittings 14.1.1 General The Purchaser shall be at liberty to take samples and have them tested to ensure compliance with the requirements of Appendix D. In addition, for fittings incorporating seamless tube the Purchaser shall also be at liberty to receive copies of the individual cast analyses used in the manufacture of each batch or order. The Purchaser shall notify the supplier when placing the order if it is his intention to inspect the material at the supplier’s works. The supplier shall afford the Purchaser all reasonable facilities to satisfy himself that the material is in accordance with this Specification. For this purpose the Purchaser or his representative may, by prior agreement, attend to inspect the material, welding procedures and welder qualifications, radiographs and radiographic reports and associated documents and to witness tests being performed. 14.1.2 Seamless tubes If so requested the Purchaser shall be provided with copies of the individual cast analyses used in the manufacture of each batch of seamless tubes supplied against the order. The Purchaser shall be at liberty to take samples and have them tested to ensure compliance with the requirements of Table 3 or 10 respectively. 14.2 Facilities for testing For making tests on samples selected by the Purchaser, or his representative, the supplier shall provide and prepare the necessary test pieces and supply labour and appliances for such testing as may be carried out on his premises in accordance with the Specification. Unless otherwise agreed, material for testing shall remain the property of the supplier. Failing facilities at his own works for performing the prescribed tests, the supplier shall make the necessary arrangements for performing the tests elsewhere. 14.1.3 Flanges The Purchaser shall be at liberty to take additional samples and have them tested. The results of such tests shall be communicated to the supplier if they are not in accordance. In addition, the Purchaser shall also, if he so specifies, be at liberty to receive copies of the individual cast analysis used in the manufacture of each batch or order. Copyright EEMUA 105 Copper nickel alloy piping for offshore applications 106 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 Appendix A Comparison of backing flanges for use with weld neck and slip-on stub ends. (See Section 4.1 - Scope and design basis). Comparison of the bore dimensions (dimension “d5”) of steel backing flanges for weld neck type stub ends (Section 3.4) and slip-on type stub ends (Section 4.4). Table 66 Comparison of backing flanges for use with weld neck and slip-on stub ends Size in/mm Composite weld neck type (see table 14) d5 (mm) Composite weld neck type (see table 21) d5 (mm) ½/16 19 23 ¾/25 28 33 1/30 33 38 1¼/38 41 47 1½/44.5 48 53 2/57 62 69 2½/76.1 81 89 3/88.9 94 103 4/108 113 123 * Backing flanges manufactured and intended for use with slip-on type stub ends to Chapter 4 shall not be used with weld neck stub ends to Chapter 3. Copyright EEMUA 107 Copper nickel alloy piping for offshore applications 108 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 Appendix B Table 67 Pressure/temperature ratings: flanges Type of flange Composite weld neck (Chapter 3) Composite slip-on (Chapter 4) Solid weld neck (Chapter 5) Solid slip-on (Chapter 6) Maximum allowable working pressure - bar Size range 16 bar system 38 C º ½ in/16 mm to 4 in/108 mm 6 in/159 mm to 36 in/914 mm 50 C º 75 C º 20 bar system 100 C º See 20 bar system 16.0 16.0 16.0 15.7 º 38 C 50ºC 75ºC 100ºC 20 19.7 18.6 17.3 20 19.7 18.6 17.3 ½ in/16 mm to 4 in/108 mm See 20 bar system 20 19.7 18.6 17.3 ½ in/16 mm to 4 in/108 mm See 20 bar system 20 19.7 18.6 17.3 20 19.7 18.6 17.3 20 19.7 18.6 17.3 6 in/159 mm to 36 in/914 mm ½ in/16 mm to 4 in/108 mm 16.0 16.0 16.0 See 20 bar system 15.7 Copyright EEMUA 109 Copper nickel alloy piping for offshore applications 110 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 Appendix C Intrados thickness of long radius elbows. See also Table 39. The additional compensatory thickness in the centre of the intrados of the long radius elbows shown in Table 39 were established and calculated by the following procedure: t(int) = ( P. Do (2R - r) X 2(SE + PY) (2R - 2r) ) + Ca Where: t(int) = Minimum intrados thickness (mm). P = Maximum design pressure 1.6 and 2.0 N/mm2*. Do = Outside diameter of pipe (mm). S = Maximum allowable stress 68.6 N/mm2*. E = Quality factor - E = 1.0. R = Elbow centre-line radius (mm) (See ANSI 816.9). R = Pipe radius - Do/2. Y = 0.4 (See ASME B31.3 - Table 304.1.1). Ca = Corrosion allowance - 0.5 mm. *1 N/mm2 = 10 bar. Copyright EEMUA 111 Copper nickel alloy piping for offshore applications 112 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 Appendix D Table 68 Chemical composition and mechanical properties of 90/10 Cu Ni fittings Chemical composition - % Element min max Copper Lead Iron† Nickel Zinc Manganese Sulphur Phosphorous Carbon Rem 1.50 10.0 0.50 - 0.010 2.00 11.00 0.20 1.00 0.020 0.020 0.050 Total impurities* including those in lighter types - 0.30 Mechanical properties Tensile Strength – N/mm2 min max 280 - 0.2% Proof Stress N/mm2 min Elongation % min on L=5.65√So Hardness HV 5 max 105 30 120** The minimum iron content has been selected to improve erosion resistance. * Impurities are elements other than copper (including silver) iron, nickel (including cobalt) and manganese. ** Determined on finished fittings. † Copyright EEMUA 113 Copper nickel alloy piping for offshore applications 114 EEMUA Copyright Publication234 Copper nickel alloy piping for offshore applications Publication234 Appendix E Table 69 Pressure/temperature ratings fittings Maximum allowable working pressure - bar Type of fitting Size range 16 bar rating o 38 C Butt welding fittings 1 in/30 mm to 4 in/108 mm 6 in/159 mm to 36 in/914 mm Socket weld fittings ½ in/16 mm to 2 in/57 mm Capillary brazed fittings ½ in/16 mm to 2 in/57 mm Compression fittings ½ in/16 mm to 2 in/57 mm o 50 C o 75 C 20 bar rating o 100 C o 38 C 50oC 75oC 100oC 20.0 19.7 18.6 17.3 20.0 19.7 18.6 17.3 20.0 19.7 18.6 17.3 * * * * Use 20 bar 16.0 16.0 16.0 Use 20 bar 16.0 * In accordance with manufacturer’s recommendations. Copyright EEMUA 115 Copper nickel alloy piping for offshore applications 116 EEMUA Copyright Publication234 Publication234 Copper nickel alloy piping for offshore applications References 1. BS EN 12449:2012 Copper and copper alloys. Seamless, round tubes for general purposes 2. BS MA 60:1986 Summary and application of copper and copper alloy tubes for ships’ pipework systems* 3. ASME B31.3 2014 Process Piping Guide 4. ASME B16.5 2013 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard 5. MSS SP-44-2006 Steel Pipeline Flanges 6. BS EN 1759-1:2004 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, class-designated steel flanges, NPS 1/2 to 24 7. ASME B16.9 2012 Factory made Wrought Steel Butt Welding Fittings 8. DIN 28011:2012-06 Tori-spherical Heads with Short Straight Flange 9. BS MA 18:1973 Specification for salt water piping systems in ships 10. ASME B16.11 2011 Forged Fittings, Socket-Welding and Threaded 11. BS 2871-2:1972 Specification for copper and copper alloys. Tubes. Tubes for general purposes* 12. BS EN ISO 6892-1:2009 Metallic materials. Tensile testing. Methods of test at ambient temperature 13. BS EN ISO 6507-1:2005 Metallic materials. Vickers hardness test. Test method 14. BS EN 1971-1:2011 Copper and copper alloys. Eddy current test for measuring defects in seamless round copper and copper alloys tubes. Test with encircling coil on the outer surface 15. ASTM E243-13 Electromagnetic (eddy current) examination of copper and copper-alloy tubes 16. ASTM B466/M-14 Standard Specification for seamless copper-nickel pipe and tube 17. ASTM B467/M-14 Standard Specification for welded copper nickel pipe 18. BS EN 1652:1998 Copper and copper alloys. Plate, sheet, strip and circles for general purposes 19. BS EN 1653:1998 Copper and copper alloys. Plate, sheet and circles for boilers, pressure vessels and hot water storage units 20. ASTM B171/M-12 Standard Specification for copper alloy plate and sheet for pressure vessels, condensers and heat exchanges 21. BS EN ISO 24373:2009 Welding consumables. Solid wires and rods for fusion welding of copper and copper alloys 22. ASME Boiler and Pressure Vessel Code a. Section V Non-destructive examination b. Section VIII Pressure vessels Division 1 c. Section IX Welding and brazing qualifications 23. DIN 86037 Loose flanges and welded stub ends for pipes of forged copper alloys; nominal pressure 10, 16 and 25 24. MSS SP43-2013 Wrought and fabricated butt-welding fittings for low pressure, corrosion resistant applications 25. ASTM A105-14 Standard Specification for carbon steel forgings for piping applications Copyright EEMUA 117 Copper nickel alloy piping for offshore applications 26. ASTM A193-15 Standard Specification for alloy-steel and stainless steel bolting for high temperature or high pressure service and other special purpose applications 27. ASTM A194-15 Standard Specification for carbon and alloy steel nuts for bolts for high pressure or high temperature service 28. BS EN ISO 15620:2000 Welding. Friction welding of metallic materials 29. BS 1134:2010 Assessment of surface texture. Guidance and general information 30. BS EN 12420:2014 Copper and copper alloys. Forgings 31. BS EN ISO 8501-1:2007 Preparation of steel substrates before application of paints and related products. Visual assessment of surface cleanliness. Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings 32. BS EN ISO 15620:2000 Welding. Friction welding of metallic materials 33. BS EN 12165:2011 Copper and copper alloys. Wrought and unwrought forging stock 34. BS EN 1759-3:200 Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, class designated. Copper alloy flanges 35. ASTM B150/M-12 Standard Specification for aluminium bronze rod, bar and shapes 36. BS EN 1982:2008 Copper and copper alloys. Ingots and castings 37. ASME B1.20.1 2013 Pipe Threads, General Purpose (Inch) 38. BS EN ISO 17672:2010 Brazing. Filler metals 39. A5.8M/A5.8:2011 AMD1 Specification for filler metals for brazing and braze welding 118 EEMUA Copyright Publication234 40. A5.7/A5.7M:2007 Specification for copper and copper - alloy bare welding rods and electrodes * Indicates withdrawn standards Copper nickel alloy piping for offshore applications Publication234 EEMUA Publication: feedback form An electronic version of this form is available at www.eemua.org Date feedback provided: (dd/mm/yyyy) EEMUA Publication: 234 Copper Nickel Alloy Piping for Offshore Applications: Tubes Feedback provided by: Contact name: Phone: E-mail: Feedback provided on behalf of which organisation? EEMUA ref (EEMUA use only) Organisation name: Location: Page no. Paragraph Figure/ Table concerned Type of comment (General/ Technical/ Editorial) COMMENTS Proposed change (Please provide alternative wording, or propose removal of, or addition to, existing wording.) OBSERVATIONS OF THE EXECUTIVE (EEMUA use only) on each comment submitted 4 Fig 2 E This is an No change to Example only example only wording required When you have completed this form with all your comments, please save and e-mail to info@eemua.org or post a paper copy to: Publications Department, EEMUA, 63 Mark Lane, London EC3R 7NQ. Copyright EEMUA 119 Copper nickel alloy piping for offshore applications EEMUA Publications Catalogue All EEMUA Publications can be purchased on-line. To order a Publication, please contact EEMUA at www.eemua.org, telephone: +44 (0)20 7488 0801, fax: +44 (0)20 7488 3499 or e-mail: sales@eemua.org. List complete at time of print. Check EEMUA website for most up to date publication list. Asset and integrity management 231 The Mechanical Integrity of Plant Containing Hazardous Substances: A Guide to Periodic Examination and Testing 206 Risk Based Inspection: A Guide to Effective Use of the RBI Process 193 Recommendations for the Training, Development and Competency Assessment of Inspection Personnel 181 A Guide to Risk Based Assessments of In-situ Large Ex ‘e’ and Ex ‘N’ Machines 161 Guide to the Selection and Assessment of Silencers and Acoustic Enclosures 159 Users’ Guide to the Inspection, Maintenance and Repair of Above-ground Vertical Cylindrical Steel Storage Tanks 148 Reliability Specification - Model clauses for inclusion in purchasing Specifications for equipment items and packages Automation and electrical equipment 120 226 Design and installation of on-line analyser systems - a guide to technical enquiry and bid evaluation 222 Guide to the Application of IEC 61511 to Safety Instrumented Systems in the UK Process Industries EEMUA Copyright Publication234 214 Toolbox Guide - Electrical Installation, Inspection and Maintenance in Potentially Explosive Atmospheres 201 Process Plant Control Desks Utilising Human-Computer Interfaces - A Guide to Design, Operational and Human Interface Issues 191 Alarm Systems - A Guide to Design, Management and Procurement 189 A Guide to Fieldbus Application for the Process Industry 187 Analyser Systems - A Guide to Maintenance Management 186 A Practitioner’s Handbook - Electrical Installation, Inspection and Maintenance in Potentially Explosive Atmospheres 178 A Design Guide for the Electrical Safety of Instruments, Instrument/Control Panels and Control Systems 175 Code of Practice for Calibration and Validation of Process Analysers 155 Standard Test Method for Comparative Performance of Flammable Gas Detectors against Poisoning 138 Design and Installation of On-Line Analyser Systems Materials selection, plant design and construction 224 Quality assurance of safety-critical engineering equipment and materials: A guide to risk-based procurement 218 Quality requirements for the manufacture/ supply of duplex stainless steels Publication234 Copper nickel alloy piping for offshore applications 105 Factory Stairways, Ladders and Handrails (incl: Access Platforms/Ramps) 104 Noise: A Guide to Information required from Equipment Vendors 101 Lifting Points - A Design Guide 197 Specification for the Fabrication of Non-Primary Structural Steelwork for Offshore Installations 194 Guidelines for Materials Selection and Corrosion Control for Subsea Oil and Gas Production Equipment 185 Guide for Hot Tapping on Piping and other Equipment Pressure equipment 182 Specification for Integral Block and Bleed Valve Manifolds for Direct Connection to Pipework 223 Pressure equipment testing after repair, modifications or re-rating: a guide to the pressure test waiver 179 A Working Guide for Carbon Steel Equipment in Wet H2S Service 211 Guidance on the Specification of pressure vessels 176 Specification for Structural Castings for Use Offshore 208 Guide to life-cycle management of Pressure 158 Construction Specification for Fixed Offshore Structures in the North Sea 204 Piping and the European Pressure Equipment Directive: Guidance for Plant Owners/Operators 154 Guidance to Owners on Demolition of Vertical Cylindrical Steel Storage Tanks and Storage Spheres 196 Valve Purchasers’ Guide to the European Pressure Equipment Directive 149 Code of Practice for the Identification and Checking of Materials of Construction in Pressure Systems in Process Plants 184 Guide to the Isolation of Pressure Relieving Devices 147 Recommendations for the Design and Construction of Refrigerated Liquefied Gas Storage Tanks 177 Guide to the UK Pressure Systems Safety Regulations (2000) 168 A Guide to the Pressure Testing of In-Service Pressurised Equipment 234 90/10 copper nickel alloy piping for offshore applications (Incorporating EEMUA 144, 145 and 146) 149 Code of Practice for the Identification and Checking of Materials of Construction in Pressure Systems in Process Plants 141 Guide to the Use of Noise Procedure Specification 140 Noise Procedure Specification 133 Specification for Underground Armoured Cable Protected against Solvent Penetration and Corrosive Attack Copyright EEMUA 121 Copper nickel alloy piping for offshore applications Process pipework, valves and machinery 122 230 Ageing rotating equipment: Guide for maintenance and operation 215 Industrial Cooling Tower Fans and Fin Fans – Guide for Design, Maintenance and Operation 205 Guide to the Production Testing of Valves for the Energy, Process, Oil and Gas Industries 204 Piping and the European Pressure Equipment Directive: Guidance for Plant Owners/Operators 200 Guide to the Specification, Installation and Maintenance of Spring Supports for Piping 199 On-Line Leak Sealing of Piping - Guide to Safety Considerations 196 Valve Purchasers’ Guide to the European Pressure Equipment Directive 192 Guide for the Procurement of Valves for Low Temperature (non-cryogenic) Service 188 Guide for Establishing Operating Periods of Safety Valves 185 Guide for Hot Tapping on Piping and other Equipment 182 Specification for Integral Block and Bleed Valve Manifolds for Direct Connection to Pipework 164 Seal-less Centrifugal Pumps: Class 1 151 Liquid Ring Vacuum Pumps and Compressors EEMUA Copyright Publication234 Storage and containment systems 217 213 Safe and effective operation of storage tanks for oil movements Emission reduction from oil storage tanks and loading operations 207 Double Concrete Tanks for Liquefied Gas: Guidelines on design, construction and operation 190 Guide for the Design, Construction and Use of Mounded Horizontal Cylindrical Bulk Storage Vessels for Pressurised LPG at Ambient Temperatures 183 Guide for the Prevention of Bottom Leakage from Vertical Cylindrical Steel Storage Tanks 180 Frangible Roof Joints for Fixed Roof Storage Tanks: Guide for Designers and Users 159 Users’ Guide to the Inspection, Maintenance and Repair of Above ground Vertical Cylindrical Steel Storage Tanks 154 Guidance to Owners on Demolition of Vertical Cylindrical Steel Storage Tanks and Storage Spheres 147 Recommendations for the Design and Construction of Refrigerated Liquefied Gas Storage Tank Publication234 Copper nickel alloy piping for offshore applications Copyright EEMUA 123

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