SA-203 Grade E Welding
SA-203 Grade E Welding
(OP)
Our Company is trying to find FCAW type wire for qualify welding procedure for SA-203 Gr E to SA-537 CL 1 at -75° F. Does anyone have any suggestions?
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RE: SA-203 Grade E Welding
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RE: SA-203 Grade E Welding
RE: SA-203 Grade E Welding
Your answer makes no sense. Are you familar with AWS welding specifications, and welding Ni-containing steels? The SA 537 Class 1 steel is a C-Mn-Si pressure vessel steel plate, that I doubt will have suitable notch toughness at -75 deg F. You will probably need a Ni-containing steel to weld to SA 203.
Get your hands on one and look for FCAW weld electrodes (SFA 5.29). In this specification, there are various weld electrodes with Ni contents that provide impact values of 20 ft-lbs at -75 deg F. One is E8XT5-NI2C. Check with Kobelco Welding, and deal with their technical support not salesmen.
RE: SA-203 Grade E Welding
A wire I have used before that does run much better than the Ni3 wires that might make your -75F is the Select-Arc 812-K2. I qualified a WPS on A352 LC1 with it.