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Japan JIS SCr445 机械结构用低合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SCr445 / SCr 445
Category Grade Standard Region/Area Standard Content
Metals SCr 445 JIS G4053 Japan 机械结构用低合金钢

Chemical composition(mass fraction)(wt.%) of the SCr 445

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2500 -
Mn 0.6000 0.8500 -
Cu - 0.3000 -
Cr 0.9000 1.2000 -
C 0.4300 0.4800 -
Si 0.1500 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2500 -
Mn 0.6000 0.9000 -
Cu - 0.3000 -
Cr 0.9000 1.2000 -
C 0.4300 0.4800 -

Mechanical Properties of steel grade SCr 445

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)
429 (≥) 992 (≥) 14 13 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade SCr 445

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
14 - -     0.44 -  
221 427 - 21.3 142   -  
148 - 22 13.2   324 224

Heat Treatment of steel grade SCr 445

Heat treated : 1135°C - 1955°C

Technological Curves of steel grade SCr 445

Cross Reference Table (Equivalent Grade) of SCr 445

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