Chemical Composition of Martensitic Stainless Steel S42020 2Cr13
Martensitic stainless steel S42020 2Cr13 is a ferritic stainless steel with a martensitic structure, which has excellent hardenability, good corrosion resistance and high wear resistance. It is commonly used for various components for its high strength and high temperature oxidation resistance. The chemical composition of S42020 2Cr13 is as follows:
Carbon: 0.17-0.22%
Chromium: 12.00-14.00%
Manganese: 1.00-1.50%
Silicon: 0.50% max
Phosphorus: 0.040% max
Sulfur: 0.030% max
Nickel: 0.8% max
Copper: 0.80% max
Nitrogen: 0.10-0.20% max
The above composition is the typical composition of S42020 2Cr13. However, it is noteworthy that the components may vary slightly due to different production processes. The carbon content of S42020 2Cr13 is relatively low, which is beneficial to the hardenability and toughness of the steel. The chromium content accounts for a large proportion of the components, and is the main alloying element of stainless steel. It has excellent corrosion resistance, especially after reaching a certain critical chromium point, the corrosion resistance can be further improved. The Manganese content is relatively low, and the Manganese is mainly used to improve the hardness and wear resistance of stainless steel materials. Silicon has better hardenability. S42020 2Cr13 steel with a high silicon content will form a large amount of chromium carbide and reduce the corrosion resistance of the steel. The content of phosphorus is required to be low. The high content of phosphorus will reduce the corrosion resistance. The sulfur content of steel should also be minimized. In addition, a small amount of nickel and copper can improve the strength and hardness of S42020 2Cr13 steel.
Martensitic stainless steel S42020 2Cr13 is a kind of ferritic stainless steel with a martensitic structure and excellent hardenability. It has good corrosion resistance and high wear resistance. The hardness of steel can be further improved after quenching and tempering treatment. The chemical composition of S42020 2Cr13 is mainly composed of carbon, chromium, manganese, silicon, phosphorus, sulfur and nickel. In addition, a small amount of copper can also be added. The content of each element should be controlled strictly to avoid the adverse effects on the mechanical and chemical properties.
