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2023-03-24 0 Views

Can stainless steel be attracted to magnets?

Many people have a misconception that stainless steel is not attracted to magnets, only iron. So this concept has become a way of distinguishing between stainless steel and iron in our daily lives. The conclusion is that what can be adsorbed by the magnet is iron, what cannot be adsorbed is stainless steel. Actually this is not the case. Let me give you a detailed explanation below hoping to help you and solve your confusion. s6ATextile Testing Instruments, Testing Equipment Manufacturer

In terms of metallographic material, stainless steel can be divided into ferritic stainless steel, martensitic stainless steel, austenitic stainless steel and duplex stainless steel.
The material of 304 belongs to the group of metastable stainless steels. After the annealed condition, it belongs to a single austenitic structural condition. It can be magnetic, but it is weakly magnetic. Generally, it is demagnetized in order not to make it - magnetic. Also theres is the stainless steel that everyone knows. However, after cold working (e.g. stamping, stretching, rolling, etc.), austenitic stainless steel undergoes a phase transformation (generally induced in martensite) and becomes magnetic. Cold worked martensitic stainless steel can be attracted by magnets. No matter what kind of metallography, stainless steel is magnetic and has little to do with its own iron content, the main difference lies in a later processing technology.
Conclusion: It is a misunderstanding to judge the quality of stainless steel based on magnetism. s6ATextile Testing Instruments, Testing Equipment Manufacturer