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China JB GCrG-H80 大型高铬铸钢热轧工作辊.技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GCrG-H80 / GCrG-H80
Category Grade Standard Region/Area Standard Content
Metals GCrG-H80 JB/T 11022 China 大型高铬铸钢热轧工作辊.技术条件

Chemical composition(mass fraction)(wt.%) of the GCrG-H80

Element Min Max Similar
C 0.6000 1.0000 -
Si 0.4000 0.8000 -
Mn 0.4000 0.8000 -
Cr 8.0000 11.0000 -
Ni - 0.7000 -
Mo 0.5000 1.7000 -
V 0.1000 1.0000 -

Mechanical Properties of steel grade GCrG-H80

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)
657 (≥) 976 (≥) 13 43 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade GCrG-H80

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
11 - -     0.33 -  
649 128 - 12.3 443   -  
967 - 31 14.2   314 124

Heat Treatment of steel grade GCrG-H80

Heat treated : 1211°C - 1128°C

Technological Curves of steel grade GCrG-H80

Cross Reference Table (Equivalent Grade) of GCrG-H80

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