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China GJB GH4080A 航空用高温合金热轧板规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GH4080A / GH4080A
Category Grade Standard Region/Area Standard Content
Metals GH4080A GJB 3317A China 航空用高温合金热轧板规范

Chemical composition(mass fraction)(wt.%) of the GH4080A

Element Min Max Similar
C 0.0400 0.1000 -
Cr 18.0000 21.0000 -
Ni - - -
Al 1.0000 1.8000 -
Ti 1.8000 2.7000 -
Fe - 1.5000 -
Co - 2.0000 -
Cu - 0.2000 -
Pb - 0.0020 -
B - 0.0080 -
Mn - 0.4000 -
Si - 0.8000 -
P - 0.0150 -
S - 0.0150 -
Ag - 0.0005 -
Bi - 0.0001 -

Mechanical Properties of steel grade GH4080A

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)
172 (≥) 149 (≥) 21 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade GH4080A

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 - -     0.41 -  
547 692 - 34.3 242   -  
659 - 43 41.2   213 324

Heat Treatment of steel grade GH4080A

Heat treated : 1128°C - 1751°C

Technological Curves of steel grade GH4080A

Cross Reference Table (Equivalent Grade) of GH4080A

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