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SMn420RCH

Japan JIS SMn420RCH 低合金冷镦钢 - 第1部分:线材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SMn420RCH / SMn420RCH
Category Grade Standard Region/Area Standard Content
Metals SMn420RCH JIS G3509-1 Japan 低合金冷镦钢 - 第1部分:线材

Chemical composition(mass fraction)(wt.%) of the SMn420RCH

Element Min Max Similar

Mechanical Properties of steel grade SMn420RCH

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)
989 (≥) 513 (≥) 34 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade SMn420RCH

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
32 - -     0.34 -  
112 944 - 24.3 442   -  
689 - 32 24.2   313 231

Heat Treatment of steel grade SMn420RCH

Heat treated : 1475°C - 1485°C

Technological Curves of steel grade SMn420RCH

Cross Reference Table (Equivalent Grade) of SMn420RCH

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