Can a magnet attract stainless steel rope mesh?

What determines the magnetism of stainless steel wire rope? Many people mistakenly believe that stainless steel is non-magnetic and that only "stainless iron" exhibits magnetism; in reality, this view is incorrect. Due to their material composition, many types of stainless steel are magnetic. Take 304 stainless steel, for example—a very common grade—which is often magnetic. Because of this, some people wrongly assume that magnetic 304 stainless steel wire rope is not genuine. So, why is 304 magnetic?

The answer lies in its physical structure. While 304 stainless steel (such as in sheet form) is inherently non-magnetic, stainless steel wire rope becomes magnetic due to deformation during manufacturing, which alters its internal structure. Specifically, some of the austenite transforms into ferrite. The greater the deformation, the more significant this change becomes; consequently, the smaller the wire rope's diameter, the stronger its magnetism. Is there a way to address this? Yes—through demagnetization. Performing a demagnetization process after wire drawing can significantly reduce magnetism, though eliminating it entirely is impossible. Since the magnetism is merely reduced rather than removed completely, it is a mistake for customers to assume a product isn't genuine stainless steel simply because a magnet sticks to it. There are currently two ways to verify if stainless steel is genuine: using a chemical testing solution (a simple method where a color change—usually to red—indicates genuine 304) or conducting a spectroscopic analysis to determine the material's composition.