What is the technical parameters of 30CrMnSiA steel

Characteristics of 30CrMnSiA steel:
After quenching and tempering, 30CrMnSiA steel has high strength and sufficient toughness, and good hardenability. After quenching and tempering, 30CrMnSiA material can be used for grinding wheel shafts, gears, and sprockets. 30CrMnSiA steel has good workability, small processing deformation, and good fatigue properties.

30CrMnSiA steel chemical composition:
30CrMnSiA steel carbon C: 0.28 - 0.34
30CrMnSiA steel silicon Si: 0.90 - 1.20
30CrMnSiA steel chromium Cr: 0.80 - 1.10
30CrMnSiA steel nickel Ni: ≤0.030
30CrMnSiA steel manganese Mn: 0.80 - 1.10
30CrMnSiA steel sulfur S: ≤0.025
30CrMnSiA steel copper Cu: ≤0.025
30CrMnSiA steel phosphorus P: ≤0.025

Mechanical properties of 30CrMnSiA steel:
Tensile strength σb(MPa): ≥1080
Yield strength σs(MPa): ≥835
Elongation δ5(%): ≥10
Reduction of area ψ(%): ≥45
Impact energy Akv(J): ≥39
Impact toughness value αkv(J/cm2): ≥49
Hardness: ≤229HB
Sample size: sample blank size is 18mm

30CrMnSiA steel heat treatment process:
Quenching at 880℃, oil cooling; tempering at 540℃, water cooling, oil cooling.

30CrMnSiA steel application:
Used for shafts, piston parts, various special wear-resistant parts for automobiles and airplanes, etc.