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America SAE G9H12 汽车用灰铁铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: G9H12 / G9H12
Category Grade Standard Region/Area Standard Content
Metals G9H12 SAE J 431 America 汽车用灰铁铸件

Chemical composition(mass fraction)(wt.%) of the G9H12

Element Min Max Similar

Mechanical Properties of steel grade G9H12

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)
338 (≥) 357 (≥) 32 14 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade G9H12

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
41 - -     0.41 -  
881 163 - 22.3 443   -  
448 - 33 41.2   223 311

Heat Treatment of steel grade G9H12

Heat treated : 1967°C - 1371°C

Technological Curves of steel grade G9H12

Cross Reference Table (Equivalent Grade) of G9H12

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