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Description

China GB GB/T 14992 (2005) , GH2038 Specialsteel Classification and designation for superalloys and high temperature intermetallic materials and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: GH2038
Category Class Grade Standard Country Application
Steel GradesSpecialsteel GH2038 GB China Classification and designation for superalloys and high temperature intermetallic materials

Chemical composition(mass fraction)(wt.%) of the GH2038

C Cr Ni Al Ti Si Mn P S B
≤0.10 10.0 -12.5 18.0 -21.0 ≤0.50 2.30 -2.80 ≤1.00 ≤1.00 ≤0.030 ≤0.020 ≤0.008

Mechanical Properties of steel grade GH2038

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)
456 (≥) 171 (≥) 42 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade GH2038

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
24 - -     0.21 -  
724 914 - 41.3 333   -  
323 - 23 11.2   213 143

Heat Treatment of steel grade GH2038

Heat treated : 1366°C - 1295°C

Technological Curves of steel grade GH2038

Cross Reference Table (Equivalent Grade) of GH2038

Grade Standard Country Application
GH2038

Relevant standard of GH2038

GB/T 14992 (2005) Classification and designation for superalloys and high temperature intermetallic materials GB-T-14992--(2005)--.pdf

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