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China YB 4J32 低膨胀铁镍、铁镍钴合金 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4J32 / 4J32
Category Grade Standard Region/Area Standard Content
Metals 4J32 YB/T 5241 China 低膨胀铁镍、铁镍钴合金

Chemical composition(mass fraction)(wt.%) of the 4J32

Element Min Max Similar
Fe - - -
Co 3.2000 4.2000 -
Ni 31.5000 33.0000 -
Mn 0.2000 0.6000 -
Cu 0.4000 0.8000 -
Si - 0.2000 -
S - 0.0200 -
P - 0.0200 -
C - 0.0500 -

Mechanical Properties of steel grade 4J32

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)
994 (≥) 342 (≥) 23 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade 4J32

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
14 - -     0.23 -  
931 676 - 24.3 433   -  
744 - 14 13.2   234 444

Heat Treatment of steel grade 4J32

Heat treated : 1925°C - 1634°C

Technological Curves of steel grade 4J32

Cross Reference Table (Equivalent Grade) of 4J32

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