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G20Cr2Mn2Mo

Description

China GBT G20Cr2Mn2Mo China structural steel and alloy steel and G20Cr2Mn2Mo Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: G20Cr2Mn2Mo
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel G20Cr2Mn2Mo GBT China China structural steel and alloy steel
GCr4
GCr15
GCr15SiMn
GCr15SiMo
GCr18Mo
G20CrMo
G20CrNiMo
G20CrNi2Mo
G20Cr2Ni4
G10CrNi3Mo

Chemical composition(mass fraction)(wt.%) of the G20Cr2Mn2Mo

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Cu(%)
0.17-0.23 0.15-0.40 1.30-1.60 0.03 0.03 1.70-2.00 Max 0.30 0.20-0.30 Max 0.25

Mechanical Properties of steel grade G20Cr2Mn2Mo

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)
865 (≥) 756 (≥) 41 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade G20Cr2Mn2Mo

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
44 - -     0.41 -  
164 972 - 24.3 311   -  
436 - 14 32.2   133 134

Heat Treatment of steel grade G20Cr2Mn2Mo

Heat treated : 1677°C - 1556°C

Technological Curves of steel grade G20Cr2Mn2Mo

Cross Reference Table (Equivalent Grade) of G20Cr2Mn2Mo

Grade Standard Country Application
G20Cr2Mn2Mo GBT China China structural steel and alloy steel

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