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China HB 4J6 膨胀合金热处理工艺说明书 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4J6 / 4J6
Category Grade Standard Region/Area Standard Content
Metals 4J6 HB/Z 239 China 膨胀合金热处理工艺说明书

Chemical composition(mass fraction)(wt.%) of the 4J6

Element Min Max Similar

Mechanical Properties of steel grade 4J6

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)
126 (≥) 955 (≥) 14 42 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade 4J6

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
33 - -     0.44 -  
975 283 - 14.3 212   -  
476 - 44 22.2   423 441

Heat Treatment of steel grade 4J6

Heat treated : 1444°C - 1724°C

Technological Curves of steel grade 4J6

Cross Reference Table (Equivalent Grade) of 4J6

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