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Japan JIS SCr21 铬钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SCr21 / SCr 21
Category Grade Standard Region/Area Standard Content
Metals SCr 21 JIS G4104 Japan 铬钢

Chemical composition(mass fraction)(wt.%) of the SCr 21

Element Min Max Similar

Mechanical Properties of steel grade SCr 21

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)
916 (≥) 152 (≥) 41 42 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade SCr 21

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 - -     0.24 -  
374 356 - 12.3 421   -  
939 - 11 12.2   112 421

Heat Treatment of steel grade SCr 21

Heat treated : 1354°C - 1253°C

Technological Curves of steel grade SCr 21

Cross Reference Table (Equivalent Grade) of SCr 21

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