Factors affecting the properties of galvanized steel sheet


1. Carbon; the higher the carbon content, the higher the hardness, but the worse its plasticity and toughness.

2. Sulfur; is a harmful sundries in steel. Steel with high sulfur content is easy to brittle and crack when pressure processing at high temperature, which is usually called thermal brittleness.

3. Phosphorus can significantly reduce the plasticity and toughness of steel, especially at low temperatures. This phenomenon is called cold brittleness. In high-quality steel, sulfur and phosphorus should be strictly controlled. But on the other hand, in low carbon steel It contains higher sulfur and phosphorus, which can make it easy to break when cutting, which is beneficial to improving the machinability of steel.

4. Manganese; can improve the strength of steel, weaken and eliminate the adverse effects of sulfur, and can improve the hardenability of steel. High alloy steel (high manganese steel) with high manganese content has good wear resistance and other physical properties.

5. Silicon; it can improve the hardness of steel, but the plasticity and toughness decrease. Electrical steel contains a certain amount of silicon, which can improve soft magnetic properties.

6. Tungsten; can improve the red hardness and thermal strength of steel, and can improve the wear resistance of steel.

7. Chromium; can improve the hardenability and wear resistance of steel, and can improve the corrosion resistance and oxidation resistance of steel.