What is 35CrMo alloy structural steel plate

1. 35CrMo plate is an alloy structural steel plate. 35CrMo steel plate has high static strength, impact toughness and high fatigue limit, higher hardenability than 40Cr, high creep strength and lasting strength at high temperature, and long-term working temperature can reach 500℃; Medium plasticity and poor weldability during cold deformation. Low temperature to - 110℃, high static strength, impact toughness, high fatigue strength, good hardenability, no overheating tendency, small quenching deformation, and acceptable plasticity during cold deformation. 35CrMo steel is mainly used to manufacture important parts of various machines bearing impact, bending and torsion and high load.

2. Chemical composition of 35CrMo alloy structural steel plate:
35CrMo carbon C: 0.32-0.40
35CrMo silicon Si: 0.17-0.37
35CrMo manganese Mn: 0.40-0.70
35CrMo sulfur S: allowable residual content ≤0.035
35CrMo phosphorus P: allowable residual content ≤0.035
35CrMo chromium Cr: 0.80-1.10
35CrMo Nickel Ni: allowable residual content ≤ 0.30
35CrMo copper Cu: allowable residual content ≤0.30
35CrMo molybdenum Mo: 0.15-0.25

3. Tensile yield strength of 35CrMo alloy structural steel:
Tensile strength σb (MPa): ≥985(100)
Yield strength σs (MPa): ≥835(85)
Elongation δ5 (%): ≥12
Reduction of area ψ (%): ≥45
Impact energy Akv (J): ≥63
Impact toughness value αkv (J/cm²): ≥78(8)
Hardness: ≤229HB
Sample size: sample blank size is 25mm

4. 35CrMo alloy structural steel heat treatment specifications and metallographic structure: heat treatment specifications: quenching 850℃, oil cooling; tempering 550℃, water cooling, oil cooling.