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Germany SEW Ck22 Steels for larger forgings; quality regulations and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Ck22 / Ck 22
Category Grade Standard Region/Area Standard Content
Metals Ck 22 SEW 550 Germany Steels for larger forgings; quality regulations

Chemical composition(mass fraction)(wt.%) of the Ck 22

Element Min Max Similar

Mechanical Properties of steel grade Ck 22

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)
274 (≥) 343 (≥) 32 23 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade Ck 22

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 - -     0.13 -  
183 732 - 12.3 211   -  
192 - 41 11.2   211 344

Heat Treatment of steel grade Ck 22

Heat treated : 1598°C - 1538°C

Technological Curves of steel grade Ck 22

Cross Reference Table (Equivalent Grade) of Ck 22

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