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Help Center
Is stainless steel magnetic?
Some stainless steels are magnetic, while others are not. All stainless steel alloys are a type of steel, which contains the element iron. Due to the magnetism of iron, most steels are magnetic, the same for much stainless steel. So, stainless steel grades with iron in their composition are magnetic. All ferrite, martensite, and precipitation hardening grades are magnetic.
The high nickel and chromium content of T300 series austenitic stainless steel makes the alloy initially nonmagnetic. For example, the common austenitic steel 304 contains 18% chromium and 8% nickel. However, these alloys also become magnetic during the cold working process used to harden them.