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China GJB GH3128 Specification for cold-rolled superalloy sheets for aviation and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GH3128 / GH3128
Category Grade Standard Region/Area Standard Content
Metals GH3128 GJB 1952A China Specification for cold-rolled superalloy sheets for aviation

Chemical composition(mass fraction)(wt.%) of the GH3128

Element Min Max Similar
C - 0.0500 -
Cr 19.0000 22.0000 -
Ni - - -
W 7.5000 9.0000 -
Mo 7.5000 9.0000 -
Al 0.4000 0.8000 -
Ti 0.4000 0.8000 -
Fe - 2.0000 -
Cu - 0.0700 -
B - 0.0050 -
Ce - 0.0500 -
Mn - 0.5000 -
Si - 0.8000 -
P - 0.0130 -
S - 0.0130 -
Zr - 0.0600 -
C - 0.0500 -
Cr 19.0000 22.0000 -
Ni - - -
W 7.5000 9.0000 -
Mo 7.5000 9.0000 -
Al 0.4000 0.8000 -
Ti 0.4000 0.8000 -
Fe - 2.0000 -
B - 0.0050 -
Ce - 0.0500 -
Mn - 0.5000 -
Si - 0.8000 -
P - 0.0130 -
S - 0.0130 -
Zr - 0.0600 -

Mechanical Properties of steel grade GH3128

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)
591 (≥) 442 (≥) 23 33 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade GH3128

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
31 - -     0.24 -  
814 491 - 43.3 222   -  
442 - 34 24.2   432 321

Heat Treatment of steel grade GH3128

Heat treated : 1432°C - 1588°C

Technological Curves of steel grade GH3128

Cross Reference Table (Equivalent Grade) of GH3128

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