Is Post Weld Heat Treatment for dismilar materials required?
Is Post Weld Heat Treatment for dismilar materials required?
(OP)
Did I need to perform the post weld heat treatment for weled dismilar materials (low alloy steel and stainless steel) which were welded by EN NiCr3 electrode? and Where can I find the subject in the literature?





RE: Is Post Weld Heat Treatment for dismilar materials required?
Typically my simple view is if either of the base materials being joined can be hardened by heat treatment or air cooling than PWHT should be considered regardless of filler metal.
Look up PWHT of steels and you will find lots of information and guidance.
RE: Is Post Weld Heat Treatment for dismilar materials required?
This is why some people will put a Ni alloy pass on the CS (buttering) and then PWHT, and then weld to the SS.
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P.E. Metallurgy, Plymouth Tube
RE: Is Post Weld Heat Treatment for dismilar materials required?
RE: Is Post Weld Heat Treatment for dismilar materials required?