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20Cr steel properties, 20Cr steel chemical composition and mechanical property

20Cr steel is widely used to fabricate hardware turning parts, but many are still curious about what is 20Cr steel and data of 20Cr steel properties. After quenching and tempering at low temperature, 20Cr steel has good comprehensive mechanical properties, good impact toughness at low temperature and no obvious temper brittleness.

20Cr steel properties - chemical composition:

20Cr steel properties - 20Cr steel plate mechanical property:

The grain size of 20Cr steel tends to grow during carburizing, so secondary quenching is required to improve the toughness of the core, and cooling quenching is not suitable. 20Cr steel needs to be preheated to 100-150℃ before welding, and the plasticity of 20Cr steel during cold deformation is medium.