Stainless steel can be seen everywhere in life. No matter which industry you are in, you will be exposed to stainless steel, but there are also bad businesses who use other materials to pretend to be 304 stainless steel pipes, but the rust resistance is very poor, so what simple method can be used to identify it? Today, the editor of Jinsuiying Stainless Steel will briefly share with you:
Magnetic recognition. A long time ago, we had the concept of using magnets to judge the authenticity of stainless steel. Although this is inaccurate, it has a certain basis. 304 stainless steel is made of austenitic stainless steel, which is non-magnetic, but it will be weakly magnetic after various processing, so 304 stainless steel pipe is not magnetic or weakly magnetic. So if you use a magnet to get close to ordinary stainless steel and 304, you can clearly feel the difference in magnetic force between the two.
Potion identification. Austenite is non-magnetic, so 201, 202, 301 will be used to pretend to be 304 tube, so if it is judged by magnetism, it is also inaccurate. There is a medicine that can quickly identify 304 material, and drop the liquid of this medicine One point is that on the stainless steel products tested, it is easy to identify which kind of stainless steel is based on the change of color.
Stencil logo. Basically, many regular manufacturers' 304 stainless steel products will have corresponding stamp marks, which is a direct identification method.
Stainless steel does not rust, but it is not easy to rust compared to other materials, and it is not rust-free. Even 304 stainless steel pipes will rust in humid salt spray. Therefore, using different materials of stainless steel in suitable environments or fields will Better extend its service life.
