Identification method of 304 stainless steel plate

There are three commonly used identification methods for 304 stainless steel plates, which are identification by potion, magnetism, and grinding.

1. The syrup specially used for testing 304 stainless steel plates is called Ni8 testing fluid. High-quality 304 stainless steel plates will appear red when encountering Ni8 testing fluid, and some stainless steels that are not 304 will turn yellow or colorless when encountering Ni8 testing fluid.

2.304 stainless steel plate is of austenitic type, which is non-magnetic or weakly magnetic. It will be too cold during processing, and its structure will transform to Markov, so that it has a certain degree of magnetism.

3. Judging by the sparks that the stainless steel is polished on the grinder. If the spark is streamlined and there are more dense knots, it is high manganese steel or manganese nitrogen steel with higher manganese content; if there are no knots, it is chromium steel or chromium-nickel stainless steel.

On the whole, the method of identification of syrup is the most reliable, and the method of magnetic identification has the lowest identification accuracy.