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Japan JIS CC21K 冷镦和冷挤压用钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CC21K / CC 21 K
Category Grade Standard Region/Area Standard Content
Metals CC 21 K JIS G7401 Japan 冷镦和冷挤压用钢

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

Element Min Max Similar
S - 0.0400 -
P - 0.0400 -
Mn 0.3000 0.6000 -
Si 0.1500 0.3500 -
C 0.1800 0.2300 -

Mechanical Properties of steel grade CC 21 K

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)
919 (≥) 791 (≥) 41 11 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade CC 21 K

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
41 - -     0.11 -  
677 237 - 14.3 241   -  
596 - 42 22.2   312 442

Heat Treatment of steel grade CC 21 K

Heat treated : 1824°C - 1344°C

Technological Curves of steel grade CC 21 K

Cross Reference Table (Equivalent Grade) of CC 21 K

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