astm a269 316l 316 stainless steel capillary pipe is magnetic

Question: Why is astm a269 316l 316 stainless steel capillary pipe also magnetic, isn't it non-magnetic, is it fake?

 

Reply: Hello. astm a269 316l 316 stainless steel capillary pipe belongs to austenitic type, so it is generally non-magnetic or very weak, but there are exceptions, such as chemical composition fluctuations caused by smelting, mixed with a small amount of martensite or ferrite The body structure or processing state is different. In addition, after cold working, the structure of astm a269 316l 316 stainless steel capillary pipe will also be transformed into martensite. The greater the cold working deformation, the more martensite transformation, and the greater the magnetic properties of the steel. In these cases, the astm a269 316l 316 stainless steel capillary pipe may be magnetic, so it is unreasonable to judge it as a fake based on whether it is magnetic.

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