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China HB GH907 低膨胀GH907合金环坯和环形件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GH907 / GH907
Category Grade Standard Region/Area Standard Content
Metals GH907 HB 7682 China 低膨胀GH907合金环坯和环形件

Chemical composition(mass fraction)(wt.%) of the GH907

Element Min Max Similar
P - 0.0150 -
S - 0.0150 -
B - 0.0120 -
Cu - 0.5000 -
Mn - 1.0000 -
Al - 0.2000 -
Cr - 1.0000 -
Fe - - -
Ti 1.3000 1.8000 -
Nb+Ta 4.3000 5.2000 -
Co 12.0000 16.0000 -
Ni 35.0000 40.0000 -
Si 0.0700 0.3500 -
C - 0.0600 -

Mechanical Properties of steel grade GH907

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)
474 (≥) 719 (≥) 31 33 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade GH907

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 - -     0.34 -  
729 447 - 21.3 214   -  
686 - 41 14.2   432 444

Heat Treatment of steel grade GH907

Heat treated : 1895°C - 1977°C

Technological Curves of steel grade GH907

Cross Reference Table (Equivalent Grade) of GH907

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