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Description

China GBT 4J58 expansionalloy and 4J58 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 4J58
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 4J58 GBT China expansionalloy
4J38
4J40
4J42
4J43
4J44
4J45
4J46
4J47
4J49
4J50

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

C(%) Si(%) Mn(%) P(%) S(%) Ni(%) Fe(%)
0.03 ≤0.25 ≤0.60 0.015 0.015 57.5-59.5 Bal

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)
134 (≥) 528 (≥) 22 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

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
34 - -     0.43 -  
771 892 - 22.3 112   -  
632 - 22 31.2   323 343

Heat Treatment of steel grade 4J58

Heat treated : 1337°C - 1857°C

Technological Curves of steel grade 4J58

Cross Reference Table (Equivalent Grade) of 4J58

Grade Standard Country Application
4J58 GBT China expansionalloy

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