How should welds of stainless steel be treated after welding?
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:) As the title suggests: How should welds of stainless steel be treated after welding?
For austenitic stainless steel, it is necessary to decide whether to carry out stress-relief treatment after welding, as removing the residual welding stresses may expose the material to sensitization temperatures, which in turn accelerates intergranular corrosion in the stainless steel (especially in the presence of chlorine).
Reply to 1# fc0304: It is best to carry out solid solution heat treatment if conditions permit
Stainless steel welds need to be pickled
This question is quite broad. For chemical industry stainless steel pipes and equipment, solid solution heat treatment is usually sufficient after welding; acid cleaning is not necessary ； It’s good to make use of all existing methods, but investments also increase as a result