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China GB MGH2757 高温合金和金属间化合物高温材料的分类和牌号 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: MGH2757 / MGH2757
Category Grade Standard Region/Area Standard Content
Metals MGH2757 GB/T 14992 China 高温合金和金属间化合物高温材料的分类和牌号

Chemical composition(mass fraction)(wt.%) of the MGH2757

Element Min Max Similar
Fe - - -
Ti 0.3000 2.5000 -
Mo 0.2000 1.5000 -
W 1.0000 3.0000 -
Ni - 1.0000 -
Cr 9.0000 15.0000 -
C - 0.2000 -

Mechanical Properties of steel grade MGH2757

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)
422 (≥) 314 (≥) 44 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade MGH2757

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 - -     0.22 -  
858 979 - 13.3 412   -  
577 - 43 21.2   243 324

Heat Treatment of steel grade MGH2757

Heat treated : 1489°C - 1126°C

Technological Curves of steel grade MGH2757

Cross Reference Table (Equivalent Grade) of MGH2757

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