Published 28 November 2022
304 steel will also be magnetic, and the quality of stainless steel cannot be judged by whether it is magnetic or not. Did you know that?
304 steel will also have magnetism and cannot judge the quality of stainless steel People often think that magnets absorb stainless steel, and verify its quality and authenticity. If it does not attract and has no magnetism, it is considered good and genuine; if it attracts magnetism, it is considered a counterfeit. In fact, this is an extremely one-sided, impractical and wrong way to distinguish. There are many kinds of stainless steel, which can be divided into several categories according to the organizational structure at room temperature: 1. Austenitic type: such as 304, 321, 316, 310, etc.; 2, martensite or ferrite type: such as 430, 420, 410, etc.; Austenite is non-magnetic or weakly magnetic, and martensite or ferrite is magnetic. Most of the stainless steel used for decorative tube sheets is austenitic 304 material, generally speaking, it is non-magnetic or weakly magnetic, but it may also appear magnetic due to chemical composition fluctuations or different processing conditions caused by smelting, but this cannot be considered as Counterfeit or unqualified, what is the reason? As mentioned above, austenite is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Due to composition segregation or improper heat treatment during smelting, a small...
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