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18Cr2Ni4WA

China GJB 18Cr2Ni4WA 航空用钢锻件规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18Cr2Ni4WA / 18Cr2Ni4WA
Category Grade Standard Region/Area Standard Content
Metals 18Cr2Ni4WA GJB 5040 China 航空用钢锻件规范

Chemical composition(mass fraction)(wt.%) of the 18Cr2Ni4WA

Element Min Max Similar
C 0.1300 0.1900 -
Mn 0.2500 0.5500 -
Si 0.1700 0.3700 -
Cr 1.3500 1.6500 -
Ni 4.0000 4.5000 -
W 0.8000 1.2000 -
S - 0.0250 -
P - 0.0250 -
Cu - 0.2500 -
Mo - 0.1500 -
V - 0.0500 -
Ti - 0.0300 -
C 0.1300 0.1900 -
Mn 0.2500 0.5500 -
Si 0.1700 0.3700 -
Cr 1.3500 1.6500 -
Ni 4.0000 4.5000 -
W 0.8000 1.2000 -
S - 0.0250 -
P - 0.0250 -
Cu - 0.2500 -
Mo - 0.1500 -
V - 0.0500 -
Ti - 0.0300 -

Mechanical Properties of steel grade 18Cr2Ni4WA

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)
743 (≥) 112 (≥) 12 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade 18Cr2Ni4WA

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 - -     0.22 -  
816 982 - 42.3 242   -  
895 - 34 12.2   422 241

Heat Treatment of steel grade 18Cr2Ni4WA

Heat treated : 1267°C - 1563°C

Technological Curves of steel grade 18Cr2Ni4WA

Cross Reference Table (Equivalent Grade) of 18Cr2Ni4WA

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