Carbon reduces the corrosion resistance, ductility, toughness and weldability of steel. This is due to the strong affinity of carbon and chromium, which can form a series of complex carbides with chromium. The higher the carbon content in the steel, the more chromium carbide is formed. As a result, the chromium content in the solid solution is reduced, and the corrosion resistance of the steel is also lowered. The higher the carbon content in the steel, the lower the corrosion resistance. For stainless steel bright rods, corrosion resistance is the main requirement, so the carbon content of stainless steel bright rods is generally low, most of them are only 0.10% - 0.20%, generally not more than 0.4%.
Carbon can increase the hardness, wear resistance, strength, etc. of steel by increasing its content. This is because the strength of the stainless steel bright rod increases as the carbon content of the steel increases. As the carbon content in the steel increases, the hardness of the steel after quenching will increase, the wear resistance will increase accordingly, and the strength of the steel will also be improved, but the plasticity and toughness will be correspondingly reduced, and the corrosion resistance will follow. And falling.
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