Why is the magnetism of stainless steel welded?
If there is magnetism after welding, the main reason may be the change of alloy system or the change of microstructure.
Austenitic stainless steel, if it contains a small amount of ferrite, or austenitic stainless steel in cold processing due to larger deformation, it will have a weak magnetic.
Stainless steel is not magnetic, mainly related to its alloy system and microstructure. Generally, austenitic stainless steel is non-magnetic, while ferrite and martensitic stainless steel are magnetic.
