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Description

China GBT GH903 wrought Fe/Ni-base superalloy and GH903 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: GH903
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy GH903 GBT China wrought Fe/Ni-base superalloy
GH6159
GH6783
GH135
GH150
GH302
GH696
GH706
GH747
GH761
GH901

Chemical composition(mass fraction)(wt.%) of the GH903

C(%) Si(%) Mn(%) P(%) S(%) Ni(%) Co(%) B(%) Nb(%) Al(%) Ti(%) Fe(%)
≤0.05 ≤0.20 0.20 0.015 0.015 36.00-39.00 14.00-17.00 0.005-0.010 2.70-3. 50 0.70-0.15 1.35 -1.75 Bal

Mechanical Properties of steel grade GH903

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)
863 (≥) 456 (≥) 21 31 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade GH903

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 - -     0.14 -  
763 799 - 14.3 322   -  
572 - 14 34.2   442 221

Heat Treatment of steel grade GH903

Heat treated : 1119°C - 1429°C

Technological Curves of steel grade GH903

Cross Reference Table (Equivalent Grade) of GH903

Grade Standard Country Application
GH903 GBT China wrought Fe/Ni-base superalloy

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