Description
30CrMnSiA is a medium carbon with high strength and poor welding performance. 30CrMnSiA has high strength, sufficient toughness and good hardenability after quenching and tempering. After quenching and tempering, the material can be used as grinding wheel shaft, gear, sprocket and so on. 30CrMnSiA has good processability, small processing deformation and good fatigue resistance. Used for shafts, pistons and other spare parts. Used in various special wear-resistant parts of automobiles and aircrafts, etc.
Standard: GB/T 3077-1988
30CrMnSiA chemical composition:
Carbon C: 0.28～0.34
Silicon Si: 0.90～1.20
Manganese Mn: 0.80～1.10
Sulfur S: Allowable residual content ≤ 0.025
Phosphorus P: allowable residual content ≤ 0.025
Chromium Cr: 0.80～1.10
Nickel Ni: Allowable residual content ≤ 0.030
Copper Cu: Allowable residual content ≤ 0.025
