30CrMnSiA alloy steel plate is medium carbon with high strength. After tempering, 30CrMnSiA alloy steel plate has high strength, enough toughness and good hardenability. After tempering, the material can be used as grinding wheel shaft, gear and sprocket.
The mechanical properties of 30CrMnSiA alloy steel plate are as follows
Tensile strength σ B (MPA): ≥ 1080 (110)
Yield strength σ s (MPA): ≥ 835 (85)
Elongation δ 5 (%): ≥ 10
Reduction of area ψ (%): ≥ 45
Impact energy Akv (J): ≥ 39
Impact toughness value α kV (J / cm & sup2;): ≥ 49 (5)
Hardness: ≤ 229hb
30CrMnSiA alloy steel plate sample size: sample blank size is 25mm
Heat treatment specification and microstructure of 30CrMnSiA alloy steel plate:
Heat treatment specification: quenching 880 ℃, oil cooling; tempering 540 ℃, water cooling, oil cooling.
30CrMnSiA alloy steel plate has good machinability, small machining deformation and good fatigue resistance. Used for shaft, piston parts, etc. Used for all kinds of special wear-resistant parts of automobile and airplane.
