SCM435 is equivalent to domestic 35CrMo material.
SCM435 (SCM3) alloy structural steel
Alloy structural steel: SCM435
Executive standard: JIS G4053-2003
●Properties and scope of application: high static strength, impact toughness and high fatigue limit, hardenability higher than the 40Cr, high creep strength and long-lasting strength at high temperatures. Strength, long-term working temperature of up to 500 ℃; cold deformation of the plasticity of the medium, poor weldability. Used for important structural parts working under high loads, such as vehicles and engine transmission parts; turbine generator rotor, spindle, heavy load transmission shaft, large section parts.
35CrMo round bar
●Chemical composition:
Carbon?C ：0.33～0.38
Si?Si：0.15～0.35
Manganese?Mn：0.60～0.90
Sulphur?S ：permissible residual content of ≤ 0.030
Phosphorus?P ：permissible residual content of ≤0.030
Chromium?Cr: 0.90～1.20
Nickel?Ni: Allowable residual content ≤0.25
Copper?Cu: Allowable residual content ≤0.030
Molybdenum:Mo:0.15～0.30
●Mechanical Properties:
Tensile Strength?σb (MPa):≥985 (100) 985(100)
Yield strength?σs (MPa):≥835(85)
Elongation?δ5 (%):≥12
Section shrinkage?ψ (%):≥45
Impact work?Akv (J):≥63
Impact toughness value?αkv (J/cm2):≥78(8)
Hardness? p>
Hardness? : ≤229HB
Sample size: sample blank size of 25mm
●Heat treatment specifications and metallurgical organization: heat treatment specifications: quenching 850 ℃, oil-cooled; tempering 550 ℃, water-cooled, oil-cooled.
●Delivery status: heat treatment (normalized, annealed or tempered at high temperature) or non-heat treatment, the delivery status should be specified in the contract.