The influence of different elements on the abrasion resistant steel plate

Element is the most basic unit that makes up a substance. Even the same element has different effects on different substances. What's more, substances composed of different elements have great differences in properties. For abrasion resistant steel plate, what are the effects of some of its constituent factors?

1. Carbon

The increase of carbon content in steel will increase its yield point and tensile strength, but its plasticity and impact will decrease. When the carbon content exceeds 0.23%, the welding performance of steel will deteriorate. Abrasion resistant steel plate are used for welding low-alloy structural steels, and the carbon content generally does not exceed 0.2%. High carbon content will also reduce the atmospheric corrosion resistance of steel, and high-carbon steel in the open stock yard is easy to rust. In addition, carbon can increase the cold brittleness and aging sensitivity of steel.

2. Silicon

Silicon is used as a reducing agent and deoxidizer in the steelmaking process. If the silicon content in the steel exceeds 0.50-0.60%, silicon is regarded as an alloying element. Silicon can significantly improve the elastic limit, yield point and tensile strength of steel, so it is widely used as spring steel. Adding 1.0-1.2% silicon to quenched and tempered structural steel can increase the strength by 15 to 20%. The combination of silicon and molybdenum, tungsten, chromium, etc., has the effect of improving corrosion resistance and oxidation resistance, and can produce heat-resistant steel.

3. Manganese

In the steelmaking process, manganese is a good deoxidizer and desulfurizer. Generally, the manganese content in steel is 0.30-0.50%. When adding more than 0.70% to carbon steel, it is considered "manganese steel". Compared with ordinary steel, it not only has sufficient toughness, but also has higher strength and hardness, which improves the hardenability of steel and improves the hot workability of steel.