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Description

China GBT 12CrMoG China structural steel and alloy steel and 12CrMoG Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 12CrMoG
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 12CrMoG GBT China China structural steel and alloy steel
16Mng
19Mng
13MnNiCrMoNbg
13MnNiCrMoNbg
12CrlMoVg
20G
20MnG
25MnG
15MoG
20MoG

Chemical composition(mass fraction)(wt.%) of the 12CrMoG

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%)
0.08-0.15 0.17-0.37 0.40-0.70 0.03 0.03 0.40-0.70 0.44-0.55

Mechanical Properties of steel grade 12CrMoG

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)
739 (≥) 755 (≥) 12 24 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade 12CrMoG

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 - -     0.31 -  
546 448 - 14.3 424   -  
188 - 42 33.2   221 341

Heat Treatment of steel grade 12CrMoG

Heat treated : 1254°C - 1587°C

Technological Curves of steel grade 12CrMoG

Cross Reference Table (Equivalent Grade) of 12CrMoG

Grade Standard Country Application
12CrMoG GBT China China structural steel and alloy steel

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