35CrMo alloy structural steel has high static strength, impact toughness, high fatigue limit, higher hardenability than 40Cr, high high-temperature creep strength and endurance strength, and the long-term working temperature can reach? 500℃; Cold deformation plasticity is medium and weldability is poor. Used as an important structural part working under high load, such as the transmission parts of vehicles and engines; Rotor, main shaft, heavy-duty transmission shaft and large-section parts of turbogenerator.
● Chemical composition:
Carbon? C :0.32~0.40
Silicon? Si:0. 17~0.37
Manganese? Manganese: 0.40-0.70
Sulfur? S: allowable residue ≤0.035.
Phosphorus? P: allowable residue ≤0.035.
Chromium? Cr:0.80~ 1. 10
Nickel? Nickel: Allowable residual content ≤0.030.
Copper? Copper: allowable residual content ≤0.030.
Mo:0. 15~0.25
● Mechanical properties:
Tensile strength σ b (MPa): ≥ 985 (100)
Yield strength σ s (MPa): ≥ 835 (85)
Elongation δ 5 (%): ≥ 12
Area shrinkage ψ? (%):≥45
Impact work? Akv (J):≥63
Impact toughness value α kV (j/cm2): ≥ 78 (8)
Hardness: ≤229HB
Sample size: the blank size of the sample is 25mm.