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China HB K423 航空发动机用等轴晶铸造高温合金锭规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K423 / K423
Category Grade Standard Region/Area Standard Content
Metals K423 HB 7763 China 航空发动机用等轴晶铸造高温合金锭规范

Chemical composition(mass fraction)(wt.%) of the K423

Element Min Max Similar
Mg - 0.0050 -
Pb - 0.0010 -
Bi - 0.0000 -
As - 0.0030 -
Sn - 0.0030 -
Ag - 0.0005 -
Sb - 0.0005 -
S - 0.0100 -
Si - 0.2000 -
Mn - 0.2000 -
V - 0.2500 -
B 0.0040 0.0080 -
Hf - 0.2500 -
Nb - 0.2500 -
Fe - 0.5000 -
Ti 3.4000 3.8000 -
Al 3.9000 4.4000 -
Mo 7.6000 9.0000 -
W - 0.2000 -
Co 9.0000 10.5000 -
Ni - - -
Cr 14.5000 16.5000 -
C 0.1200 0.1800 -

Mechanical Properties of steel grade K423

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)
917 (≥) 118 (≥) 12 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade K423

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 - -     0.11 -  
439 394 - 43.3 412   -  
891 - 42 44.2   344 314

Heat Treatment of steel grade K423

Heat treated : 1173°C - 1815°C

Technological Curves of steel grade K423

Cross Reference Table (Equivalent Grade) of K423

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