People often think of the magnet adsorption verify its quality and authenticity of stainless steel material, no smoking, no magnetic, think is good and true; The magnetic absorption, and considered a counterfeit, fake. Actually, this is a very one-sided, wrong about it.
There are many types of stainless steel, room temperature according to the organizational structure can be divided into the following categories:
1. The austenite size, such as 304, 321, 316, 310, etc;
2. Martensite or iron grain size: such as the 430, 420, 410, etc;
Austenite size is non-magnetic or weak magnetic, martensite and ferrite are magnetic.
Often used as decorative tube plate mostly austenite size of 304 stainless steel material, generally is non-magnetic or weak magnetic, but caused by smelting chemical composition may also appear different magnetic fluctuations or processing status, but it cannot be considered a counterfeit or not ?