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Page Title:
WELDING PROCEDURE SPECIFICATION - WPS NO: 020 |
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 TM 5-5420-279-23
WPS No. 0020
WILLIAMS FAIREY ENGINEERING LTD.
APPROVAL REPORT:
WELDING PROCEDURE SPECIFICATION - WPS NO: 020
W.P.A.R. No: 25
Approved by:
Sheet No: 1
Issue: 1
Date: 26-06-97
K.L. No: 10508
Primary Specifications:
Material Specification:
Material Dimensions.
BS EN 729
DGFVE 232B
Thickness: 3.0 to 12.5mm
Pipe Dia: N/A
Type Of Joint:
Welding Process:
Welding Position:
Single bevel butt weld
Manual M.I.G.
PA
Run Sequence & Weld Dimensions:
Joint Preparation:
Preparation Method: Weld areas to be degreased and wire brushed before assembly
Welding Details:
Wire feed
Travel
Heat
Proce
Size of
Type of
Run No.
Current A
Voltage
Speed
Speed
Input
ss
filler metal
Current
M/Min
mm/Min
J/mm
M.I.G.
1.6mm
220 - 280
22.5 - 27
DC + VE
7.5 - 9.0
1
M.I.G.
1.6mm
260 - 280
23 - 27
DC + VE
7.5 - 9.5
Additional
runs
Filler Metal Classification & Trade Name: BS 2901 PT 4 TYPE 5556A
Gas Type Shielding: Argon
Gas flow Shielding:
Tungsten Electrode Type:
Backing: N/A
45 - 55 cu/ft/hr
N/A
Backing: N/A
Size: mm N/A
Details of Back Cutting / Backing: N/A
Preheat Temperature:
Interpass temperature:
Transfer Mode: Spray
Min +5C
Max 50C
Other Information: Use run on run off plates and crater filling settings on PAC 8 as required.
Dress or remove all unsound tack welds.
Appendix K Page 71
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