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China QJ 1J8 软磁合金的热处理 耐蚀软磁合金的热处理 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 1J8 / 1J8
Category Grade Standard Region/Area Standard Content
Metals 1J8 QJ 1181.5A China 软磁合金的热处理 耐蚀软磁合金的热处理

Chemical composition(mass fraction)(wt.%) of the 1J8

Element Min Max Similar

Mechanical Properties of steel grade 1J8

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)
338 (≥) 259 (≥) 33 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade 1J8

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
42 - -     0.34 -  
788 423 - 21.3 244   -  
575 - 13 24.2   212 313

Heat Treatment of steel grade 1J8

Heat treated : 1775°C - 1424°C

Technological Curves of steel grade 1J8

Cross Reference Table (Equivalent Grade) of 1J8

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