304 stainless steel is a commonly used stainless steel, which has excellent corrosion resistance, heat resistance, and wear resistance, and has therefore been widely used in industrial production. However, due to the high price of 304 stainless steel, there are many counterfeit and inferior 304 stainless steel products on the market. In order to avoid purchasing counterfeit and inferior 304 stainless steel products, we need to learn how to identify them.

Firstly, we can identify 304 stainless steel by its appearance. Authentic 304 stainless steel has a smooth surface and a certain luster, while counterfeit and inferior 304 stainless steel may have defects such as burrs and oxides on the surface, so it can be judged whether it is authentic 304 stainless steel by its appearance.

Secondly, we can identify 304 stainless steel through magnetism. Authentic 304 stainless steel is non-magnetic, while counterfeit and inferior 304 stainless steel may have some magnetism, so it can be judged whether it is authentic 304 stainless steel through magnetism.

In addition, we can also identify 304 stainless steel by its chemical composition. The chemical composition of authentic 304 stainless steel is: C ≤ 0.08, Si≤1.00，Mn≤2.00，P≤0.045，S≤0.030，Ni：8.00-10.50，Cr：18.00-20.00，Mo：2.00-3.00，Ti：≤0.75，N：≤0.10，Cu：≤0.75，Fe：Balance， The chemical composition of counterfeit and inferior 304 stainless steel may vary, so it is possible to determine whether it is authentic 304 stainless steel based on its chemical composition.

Finally, we can also identify 304 stainless steel by its corrosion resistance. Authentic 304 stainless steel has excellent corrosion resistance, while counterfeit 304 stainless steel may have certain corrosiveness, so it can be judged whether it is authentic 304 stainless steel based on its corrosion resistance.

In short, to correctly identify 304 stainless steel, we can judge whether it is authentic 304 stainless steel by appearance, magnetism, chemical composition, and corrosion resistance.