SHEET NO-1 OF5
TENDER SPECIFICATION
No. CLW / MS /3/029/Alt 10
Alt No.
Date
TENDER SPECIFICATION FOR STAINLESS STEELTUBE FOR 3 PHASE
ELECTRIC LOCOMOTIVE.
ISSUED BY:
DY. CHIEF ELECTRICAL ENGINEER / D-1.
ELECTRIC LOCO DRAWING OFFICE.
CLW / CHITTARANJAN
PREPARED
BY
CHECKED
BY
REVIEWD
BY
APPROVED
BY
Specification
for Stainless
Steel Tube for
Pneumatic
system.
ELDO/MECH
CHITTARANJAN
LOCOMOTIVE WORKS
CHITTARANJAN-713331
SPEC.-CLW/MS/3/029 A
DATEALT.NO.
JE/D&D
SSE/D&D
SME/D
Dy.CEE/D -I
SHEET NO-2 OF5
SPECIFICATION FOR STAINLESS STEEL TUBES FOR
3-PHASE A.C. FREIGHT LOCOMOTIVE (WAG-9 LOCO)
1.
SCOPE:
This specification prescribes the requirements for seamless stainless steel Tubings for general
corrosion resisting service including transmission of compressed air for 3 Phase electric Locomotive,
operating air pressure being as high as 11.5 Kg/ Cm² (normal air pressure is 10 Kg /Sq.cm).
2.
SCOPE OF SUPPLY:
The required dimensions of tubes and their respective quantities/sets (loco) have been shown in at
annexure-1. The tubes shall be supplied in lengths of 6(six) meters and part thereof for the remaining
lengths, if any.
OR
Tubes length is to be worked out from CLW’s drawing no IB-071-00058. The tubes are to be cut / bent
as shown in the referred drawings and each drawing to be approved by CLW before supply. The size of
tubes used as per annexure-I.
3.
CLIMATIC AND ENVIRONMENTAL CONDITIONS:
3.1
Maximum Atmospheric Temperature:
Under Sun
In Shade
3.2
Humidity: 100% saturation during Rainy Season.
3.3
Reference Site Conditions:
:
70º C
:
50 ºC
(i) Ambient Temp. Max. 47ºC Min. 0ºC
(ii) Humidity: 60%
(iii) Altitude: 160 mtrs. above sea level.
3.4
Rainfall:
Very heavy in certain areas. The locomotive will be designed to permit its running of
10km /hr. in flood water level of 102 mm above rail level.
PREPARED
BY
CHECKED
BY
REVIEWD
BY
APPROVED
BY
Specification
for Stainless
Steel Tube for
Pneumatic
system.
ELDO/MECH
CHITTARANJAN
LOCOMOTIVE WORKS
CHITTARANJAN-713331
SPEC.-CLW/MS/3/029 A
DATEALT.NO.
JE/D&D
SSE/D&D
SME/D
Dy.CEE/D -I
SHEET NO-3 OF5
3.5
Atmosphere during Hot Weather: Extremely dusty in desert terrain in certain areas.
3.6
Coastal Area: Locomotive and equipment will be designed to work in coastal areas in humid and salt
laden atmosphere.
3.7
Vibration: The equipment, sub-system and their mounting arrangement in service as specified in
corresponding the shocks encountered in service as specified in corresponding I.E.C. publications
unless otherwise stated.
4.
STANDARDS:
4.1
The tubes to be supplied shall be as per the specification ASTM A269.
5.
GENERAL AND TECHNICAL DATA
5.1
Name of Material: Seamless annealed stainless steel tubes.
5.2
Grade : As Gr. 304 conforming ASTM A 269 or equivalent with hardness Rockwell Rb90 or less.
5.3
i) Bend Test :The finished tube shall be capable of withstanding the bend test without showing any sign of
fracture or failure .the tube shall not be filled for the test the bend test shall be performed on one tube
out of 30(Thirty) tubes or part thereof for each heat.
ii) The tubes shall be capable of being bent-cold without crack and or collapsing thro 900 round or the
former having a radius at the bottom of the groove equal to 3 (three) times the outside diameter.
NOTE: When more than one heat is involved, the flaring, chemical composition and hardness test
requirements shall apply to each heat..
5.4.
Chemical composition: The tubes shall conform to the requirements as to chemical composition as
prescribed in Table of ASTM A 269.
5.5
Heat treatment : Refer to Clause no. 6 of the specification ASTM A 269.
5.6
Product Analysis: As described in clause no 8.1, 8.2, 8.3 of the specifications ASTM A269
SHEET NO.- 4 OF5
PREPARED
BY
CHECKED
BY
REVIEWD
BY
APPROVED
BY
Specification
for Stainless
Steel Tube for
Pneumatic
system.
ELDO/MECH
CHITTARANJAN
LOCOMOTIVE WORKS
CHITTARANJAN-713331
SPEC.-CLW/MS/3/029 A
DATEALT.NO.
JE/D&D
SSE/D&D
SME/D
Dy.CEE/D -I
( Also referred to table 2 of ASTM A269).
5.7
Hardness Requirements : As described in Clause No.11 of the specification ASTM A269.
5.8
Tenderers shall indicate in their offer whether the tubing’s offer s offered cold finished or hot finished or
can be both at the choice of the purchaser.
5.9
INSPECTION AND ACCEPTANCE:
The test as indicated in clause 9,10,S1,S2,S4 of spec ASTM A 269 is to be conducted for each lot of
tubes .
The above test maybe carried out at in house facility of the manufacturer. In this case
the test shall be witnessed by CLW representative.
However firm may submit relevant valid test certificate in compliance of above test
requirement from well recognized test labs. Such labs should have preferred
accreditation from national/international accreditation bodies. Such certificate will be
accepted after genuinely verifications
6. 0
Certificates of the results of all the tests performed in accordance with specifications duly signed by the
firm. Authorized representative should be sent along with the supply.
6.1
Certificate of performance guarantee.
7.
MARKING:
7.1
Each Tube to be marked suitably to identify
i) Grade of Material (ii) Cold finished / Hot finished (iii) Outside diameter (iv) Wall thickness (v) Name of
the manufacturer (vi) Manufacturing date (vii) Batch / Lot No. (viii) Heat No.
PREPARED
BY
CHECKED
BY
REVIEWD
BY
APPROVED
BY
Specification
for Stainless
Steel Tube for
Pneumatic
system.
ELDO/MECH
CHITTARANJAN
LOCOMOTIVE WORKS
CHITTARANJAN-713331
SPEC.-CLW/MS/3/029 A
DATEALT.NO.
JE/D&D
SSE/D&D
SME/D
Dy.CEE/D -I
SHEET NO.-5 OF 5
8.
GUARANTEE / DEFFECT LIABILITY:
8.1
The manufacturer is required to guarantee the material and satisfactory performance for a period of 5
(five) years
9.
PACKING DELIVERY:
The tubes shall be suitably packed with polythene sheet in such a manner to avoid movements, rubbing
and damage of their ends. Each package shall be of convenient mass for easy handling. All tube ends
shall be suitably plugged with plastic.
Annexure-1
Requirement of stainless steel tube (Seamless, Annealed) to Gr. 304 confirming to ASTM A 269 for
WAG-9 (co-co) locomotives. WAP-7 and WAP-5 Locomotives.
PREPARED
BY
Sl. No.
Outside Diameter
Wall Thickness (mm)
1.
12.7 (1/2 ‘’)
0.889
2.
15 mm.
1.5
3.
22mm
1.5
3.
25.4 (1 ‘’)
2.108
4.
38.1 ( 11/2’’)
3.404
5.
10
1
CHECKED
BY
REVIEWD
BY
APPROVED
BY
Specification
for Stainless
Steel Tube for
Pneumatic
system.
ELDO/MECH
CHITTARANJAN
LOCOMOTIVE WORKS
CHITTARANJAN-713331
SPEC.-CLW/MS/3/029 A
DATEALT.NO.
JE/D&D
SSE/D&D
SME/D
Dy.CEE/D -I