Effects of several major elements in steel on steel properties

• carbon (c) : the carbon content increases, the yield point and tensile strength increase, but the plasticity and impact performance decrease, and the excessive carbon content is likely to cause intergranular corrosion unqualified. The boundary between steel and iron is controlled by C content: <2.11% is steel

• silicon (Si) : Si is a deoxidizer and desulfurizer with high strength and hardness, which can improve the thermal processing performance of steel.

• chromium (Cr) : chromium significantly increases the strength, hardness, and wear resistance of steel, while reducing plasticity and toughness.

• nickel (Ni) : nickel increases the strength of steel while maintaining good plasticity and toughness. Effects of several major elements in steel on steel properties

• molybdenum (Mo) : adding molybdenum to steel can improve the mechanical properties of steel.

• titanium (Ti) : titanium is a deoxidizer in steel. Reduced efficiency sensitivity and cold brittleness. Adding a certain amount of titanium to steel has the ability to resist intercrystalline corrosion.

• phosphorus (P): phosphorus is a harmful element in steel, which increases the cold brittleness of steel, deteriorates welding performance, reduces plasticity, and deteriorates cold bending performance. Generally, the lower the phosphorus content in steel, the better.

• sulfur (S): sulfur is a harmful element in steel, causing it to become hot brittle, reducing the ductility and toughness of steel, causing cracks in forging, and reducing the corrosion resistance of steel. So the sulfur content must be kept as low as possible.

• nitrogen (N): nitrogen improves steel strength, low temperature toughness and weldability. Increase effectiveness sensitivity. Proper amount of nitrogen can improve the corrosion resistance and strength of stainless steel.