Chinese Factory 304 Stainless Steel Sheets Coils Chemical Compostion and Physical Properties

304 stainless steel is a common stainless steel material, and its chemical composition is mainly composed of the following elements:

Iron (Fe): accounts for approximately 67-71.5%, providing basic mechanical properties and magnetism as a matrix element.

Chromium (Cr): accounts for approximately 17.5-19.5%, and chromium can improve the corrosion resistance and oxidation resistance of steel.

Nickel (Ni): accounts for about 8-10.5%. Nickel can improve the toughness and hardenability of steel, and when combined with chromium, it can improve the corrosion and heat resistance of steel.

Silicon (Si): accounts for less than 1%, improving antioxidant and high temperature resistance.

Manganese (Mn): accounts for less than 2%, improving strength and toughness.

Carbon (C): Usually less than or equal to 0.08%, carbon forms carbides with chromium, reducing the effective content of chromium and thus reducing corrosion resistance.

In summary, the chemical composition of 304 stainless steel is composed of five main elements: iron, chromium, nickel, silicon, and carbon, each of which has a significant impact on the material's properties.