Magnetically distinguish austenitic stainless steel from ferritic stainless steel. Austenitic stainless steel is generally non-magnetic, but after cold working in a strong pressure environment, there will be a certain degree of insignificant magnetic properties.
And pure chromium stainless steel, that is, ferritic stainless steel, has very strong magnetic properties, which This method is the most direct and simplest method among all the methods, with low cost and high efficiency, and is widely used.
