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China GB 4J58 精密合金牌号 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4J58 / 4J58
Category Grade Standard Region/Area Standard Content
Metals 4J58 GB/T 15018 China 精密合金牌号

Chemical composition(mass fraction)(wt.%) of the 4J58

Element Min Max Similar
Fe - - -
Ni 57.5000 59.5000 -
Si - 0.2500 -
Mn - 0.6000 -
P - 0.0150 -
S - 0.0150 -
C - 0.0300 -

Mechanical Properties of steel grade 4J58

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)
832 (≥) 248 (≥) 14 32 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 4J58

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
31 - -     0.14 -  
667 954 - 13.3 412   -  
467 - 23 43.2   231 331

Heat Treatment of steel grade 4J58

Heat treated : 1549°C - 1957°C

Technological Curves of steel grade 4J58

Cross Reference Table (Equivalent Grade) of 4J58

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