Available 24/7 at contact@steel-grades.com

China GB 40CrMo 合金结构钢技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40CrMo / 40CrMo
Category Grade Standard Region/Area Standard Content
Metals 40CrMo GB/T 3077 China 合金结构钢技术条件

Chemical composition(mass fraction)(wt.%) of the 40CrMo

Element Min Max Similar
C 0.3500 0.4500 -
Si 0.1500 0.4000 -
Mn 0.4000 0.7000 -
P - 0.0350 -
S - 0.0350 -
Cr 1.0000 1.5000 -
Mo 0.1500 0.2500 -

Mechanical Properties of steel grade 40CrMo

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
382 (≥) 533 (≥) 14 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade 40CrMo

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
24 - -     0.14 -  
573 253 - 14.3 131   -  
724 - 22 42.2   333 414

Heat Treatment of steel grade 40CrMo

Heat treated : 1469°C - 1556°C

Technological Curves of steel grade 40CrMo

Cross Reference Table (Equivalent Grade) of 40CrMo

Available Suppliers

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
  • Do you supply this 40CrMo?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top