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Description

China GB GB/T 14992 (2005) , GB/T 14994 (2008) , GH1040 Specialsteel Classification and designation for superalloys and high temperature intermetallic materials and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: GH1040
Category Class Grade Standard Country Application
Steel GradesSpecialsteel GH1040 GB China Classification and designation for superalloys and high temperature intermetallic materials

Chemical composition(mass fraction)(wt.%) of the GH1040

C Cr Mo Ni Si Mn P S N
≤0.12 15.0 -17.5 5.50 -7.00 24.0 -27.0 0.50 -1.00 1.00 -2.00 ≤0.030 ≤0.020 0.10 -0.20

Mechanical Properties of steel grade GH1040

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)
966 (≥) 741 (≥) 34 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade GH1040

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
23 - -     0.33 -  
179 438 - 23.3 332   -  
925 - 32 24.2   342 442

Heat Treatment of steel grade GH1040

Heat treated : 1673°C - 1535°C

Technological Curves of steel grade GH1040

Cross Reference Table (Equivalent Grade) of GH1040

Grade Standard Country Application
GH1040
GH1040
GH1040
GH1040

Relevant standard of GH1040

GB/T 14992 (2005) Classification and designation for superalloys and high temperature intermetallic materials GB-T-14992--(2005)-.pdf
GB/T 14994 (2008) Cold brawn heat-resisting superalloy bars GB-T-14994--(2008)-.pdf

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