This is because: After the 304 stainless steel is made of the elbow, the tissue structure will also be transformed into martenital stencilities. The larger the cold processing deformation, the more martensite transformation, and the stronger the magnetism will be.

Zhejiang Mingli's stainless steel pipe parts are formed by cold processing and deformation, and there is a weak magnetism after processing.After high-temperature solution treatment, the weak magnetic properties of most parts are basically eliminated.However, some pipe parts may still have weak magnetism, which can be reflected when adsorbing with magnets, which is normal.