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China HB K4002 航空用高温合金热处理工艺 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K4002 / K4002
Category Grade Standard Region/Area Standard Content
Metals K4002 HB/Z 140 China 航空用高温合金热处理工艺

Chemical composition(mass fraction)(wt.%) of the K4002

Element Min Max Similar
Cu - 0.1000 -
Mg - 0.0030 -
Pb - 0.0005 -
Bi - 0.0000 -
Ag - 0.0005 -
S - 0.0100 -
P - 0.0100 -
Si - 0.2000 -
Mn - 0.2000 -
V - 0.1000 -
Zr 0.0300 0.0800 -
B 0.0100 0.0200 -
Hf 1.3000 1.7000 -
Ta 2.2500 2.7500 -
Fe - 0.5000 -
Ti 1.2500 1.7500 -
Al 5.2500 5.7500 -
Mo - 0.5000 -
W 9.0000 11.0000 -
Co 9.0000 11.0000 -
Ni - - -
Cr 8.0000 10.0000 -
C 0.1300 0.1700 -

Mechanical Properties of steel grade K4002

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)
725 (≥) 589 (≥) 11 11 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade K4002

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 -  
284 815 - 43.3 112   -  
467 - 11 24.2   321 344

Heat Treatment of steel grade K4002

Heat treated : 1665°C - 1346°C

Technological Curves of steel grade K4002

Cross Reference Table (Equivalent Grade) of K4002

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