Custom heat treatment 4140 alloy steel used for die of bending machine

Heat Treatment 4140 Alloy Steel Equivalent Steel Grade 
China GB steel number 42CrMo, Germany DIN steel number 42CrMo4, Germany DIN
material number 1.7225, French NF standard 40CD4/42CD4, Japanese JIS standard
SCM440, British BS standard 708M40/708A42/709M40, American AISI/ASTM 4140,
American SAE 4140, American UNS Standard G41400

Heat Treatment 4140 Alloy Steel Chemical Composition
C:0.38-0.45 Si:0.17-0.37 S：≤0.035 P:≤0.035
Mn:0.50-0.80 Cr:0.90-1.20 Mo:0.15-0.25 Ni:≤0.30
Cu≤0.30

SAE 4140 Mechanical Properties
Tensile Strength
σb (MPa):≥1080(110)
Yield Strength
σS (MPa):≥930(95)
Elongation
δ5 (%):≥12
Reduction
ψ (%):≥45 
Impact Energy
Akv (J):≥63
Impact Toughness
akv (J/cm2):≥78(8)
Annealed Hardness
≤217HB

Our advantage
Focus on the steel industry for more than ten years
Strength factory
Professional service
Quality assurance
Customized according to customer requirements
Factory price
Fast shipping time
Good after-sales service
Happy to work with customers
High repurchase rate, etc.
songshunmoldsteel41404340

Minimum Order: 1 tons

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