Re-Routing of existing 8” Gas pipeline
Inside MOD area
Contract No : OGC/06/2017
The Petroleum Projects and
Technical Consultations Co.
One of the Egyptian General Petroleum Corporation
Companies
PROPOSED WELDING PROCEDURE SPECIFICATION (PWPS)
Reference: Sp 1177, May. 2016, Ver.3, Specefication for welding of class 1 pipelines and API Std 1104, 21 th edition 2013
Client / Employer : MOD
Contract No. :OGC/06/2017
Main Contractor
Sub-Contractor : PETROJET L.L.C.
: OGC
PWPS No.
: MAM-9-2004-041-T6-4-B
Pipe to Pipe
Rev. No.
B
Date
: 09-07-2020
PQR No.
: TBA
Rev. No.
: TBA
Date
: TBA
Test Code
: API 1104, 21 edition 2013
PDO Spec.
: SP 1177, Version 3.0, May.2016
Joint Design (showing joint fit-up dimension, angle, tolerances & pass sequence)
External Clamp
Coupon Outside Diameter : 8 ''
Single V - Butt Joint
Process (es) /
: SMAW / Manual
Type(s)
Coupon Thickness
Material Spec. :
CS, ISO 3183 API 5L Carbon Equivalent 0.32
Qualified Diameter Range :
4" TO 12"
Consumables
Process
Root
: 7.92 mm
Group No. :
B (API 1104)
Material Grade :
Gr. L 415 / X60
Qualified Thickness Range :
5.94 mm : 9.9mm
Pass
No.
Sheet 2 of 3
Heat Treatment Condition :
TBA
Qualified Positions & progression :
5G & Root Uphill and Remaining passes Downhil.
Aws
Class
Diameter
(mm)
SFA
Group
No.
Current &
Polarity
Amps
Range
Volts
Range
Travel Speed
(mm/sec)
Heat Input
(Kj/mm)
±10%
Manufacturer
Trade Name
SMAW
LINCOLN ELECTRIC
FLEETWELD 5P
E6010
3.20
A5.1
1
DC E+
TBA
TBA
TBA
TBA
Hot Pass
SMAW
LINCOLN ELECTRIC
PIPLINER 8P+
E8010
4.00
A5.5
2
DC E+
TBA
TBA
TBA
TBA
Filling
SMAW
LINCOLN ELECTRIC
PIPLINER 8P+
E8010
4.00
A5.5
2
DC E+
TBA
TBA
TBA
TBA
Cap
SMAW
LINCOLN ELECTRIC
PIPLINER 8P+
E8010
4.00
A5.5
2
DC E+
TBA
TBA
TBA
TBA
Note / Remarks :
Qualified weld deposit thickness
Process(es)
Max. mm
Service Condition : Sour.
MDMT
: -10 ◦c.
Position
: 5G
Passes
: Root Pass U/H Other D/H
Purpose
Gas
% Comp.
Flow Rate
Shielding
N/A
N/A
N/A
H.I ( KJ/mm ) = ( I*V )/(1000*travel speed mm/min)
Trailing
N/A
N/A
N/A
Backing
N/A
N/A
N/A
SMAW
OGC
Approved for Qualification / Construction by welding TA-2
Petrojet :
Name
:
WALEED SIDDIQ
Signature :
Date
:
9.9
Gas
Name
:
Signature :
09/07/2020
Date
:
QCF-09
Re-Routing of existing 8” Gas pipeline
Inside MOD area
Contract No : OGC/06/2017
The Petroleum Projects and
Technical Consultations Co.
One of the Egyptian General Petroleum Corporation Companies
PROPOSED WELDING PROCEDURE SPECIFICATION (PWPS)
Reference: Sp 1177, May. 2016, Ver.3, Specefication for welding of class 1 pipelines and API Std 1104, 21 th edition 2013
Sheet 3 of 3
PWPS No.:
MAM-9-2004-041-T6-4-B
Rev. No. : B
Date : 09-07-2020
Preheat
POST Weld Heat Treatment :
Ambient Temp. :
> 35◦c
Method of Heating :
N/A
Preheat Temp. :
100◦c
Heating Rate :
N/A
Propan Torch
Soaking Temp. :
N/A
Infrared Thermometer /Temprture Stick
Soaking Time :
N/A
Min. 100◦c , Max. 250◦c
Cooling Rate :
N/A
Method of Heating :
Temp. Monitoring Method :
Interpass Temp. :
Technique
Others
Multiple pass or single pass per side :
Multiple
Tack Welding Parameters :
N/A
Single or multible electrode :
Single
Bridge / Bar Materials
N/A
String / Weave bead :
String for Root / Weave for Others
Max. Width of weave :
Max.2.5 times electrode Dia.
:
Method of Tack Removal :
Method of Clamping
N/A
:
EXTERNAL CLAMP
Orifice or Cup Size :
N/A
Clamp Removal
:
N/A
Mode of metal transfer (GMAW) :
N/A
Lowering off
:
N/A
Electrical Stick out length :
N/A
Treatment to Second Side :
N/A
Wire feed Speed :
N/A
Method of Back Gouging :
N/A
Contract Tube to work Distance :
N/A
Initial & interpass cleaning :
Grinding & Brushing
Tungsten Electorode Size :
N/A
Weld finishing
Tungsten Electorode Class :
N/A
No. of Passes before interruption :
No. of welders :
1
Time Lapse Between root &second passes:
4 min
Time Lapse Between other passes :
5-6 min
As Welded
Tie in joints shall be completed in one cycle
No. of weld Passes where gas backing is
required:
N/A
Dry or pretreatment (Filler metal) :
Dry
Type of electrode Packaging :
Plant of Origin of filler metal :
TBA (as per latest ASME)
Shielding Flux Classification :
Cellulosic
Consumables Trade Name
:
Electrode Baking Time
TBA
Easy Open Hermetic Cans
:
N/A
Electrode Baking Temperature :
N/A
No. Of Rebakes :
N/A
Notes:
‫٭‬
‫٭‬
‫٭‬
Min. band width for preheat area 75 mm (Full length of the joint) untill weld completion.
The min. no. of passes before the joint is allowed to cool to ambient temp. shall be 3 passes or one third of joint thickness.
NDT after 24 hours .
‫ ٭‬The welding Procedure Shall be qualified on project material
‫ ٭‬Max Ni Content in filler metal is 1% (sour service).
‫٭‬
‫٭‬
‫ ٭‬Hot pass to be started immediately after complation of root pass grinding
Ensure proper earth clamp to avoid any arc strikes.
‫ ٭‬Electrode batch certificate & shall be in accordance with ISO 10474 type 3.1.B.
WPS is applicable for butt weld of Pipe to Pipe.
‫ ٭‬Nick Brack Test as per attached PQR
Mechanical Laboratory Test (Tensile Test ,Guided bend Test, Charpy V notch impact test and
All NDT test to be briefef as per SP-1177 Version 3.0 / API1104 21th
‫ ٭‬edition 2013
‫ ٭‬Hardness Test and Macro Examination as per Sp 1177
‫ ٭‬Electrode Certification Shall be EN 10204 Type 3.1
‫ ٭‬The Contractor Shall Use Calibrated Portable Arc Monitoring System(PAMS)
State 'NA' whichever is not applicable
'TBA' to be approved
OGC
Approved for Qualification / Construction by welding TA-2
Petrojet :
Name
:
WALEED SIDDIQ
Signature :
Date
:
Name
:
Signature :
09/07/2020
Date
:
QCF-09