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Japan JIS HR4 热轧碳钢板,钢片及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HR4 / HR 4
Category Grade Standard Region/Area Standard Content
Metals HR 4 JIS G3131 Japan 热轧碳钢板,钢片及钢带

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

Element Min Max Similar

Mechanical Properties of steel grade HR 4

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)
219 (≥) 745 (≥) 32 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade HR 4

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
43 - -     0.11 -  
168 473 - 13.3 244   -  
468 - 12 34.2   432 214

Heat Treatment of steel grade HR 4

Heat treated : 1328°C - 1152°C

Technological Curves of steel grade HR 4

Cross Reference Table (Equivalent Grade) of HR 4

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