40CrMnMo chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrMnMo

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GBT 40CrMnMo

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This page is mainly introduced the 40CrMnMo chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrMnMo,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40CrMnMo
  • Steel Garde:40CrMnMo
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
40CrMnMo7 DIN Germany
40CrMnMoS8-6 DIN Germany
40CrMnMo8 AFNOR France
40CrMnMo8 AFNOR France
40CrMnMo7 UNE Spain

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 605~786 σb/MPa
Yield Strength 032 σ 0.2 ≥/MPa
Elongation 40 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 733~177 -
HRC 30 -

Physical Properties

Thermal expansion 83-16 e-6/K
Thermal conductivity 15-37 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7757-2702 째C
Density 5237-3268 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
40CrMnMo Special Alloy Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download