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Germany DIN C74 高碳素钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C74 / C 74
Category Grade Standard Region/Area Standard Content
Metals C 74 -- Germany 高碳素钢

Chemical composition(mass fraction)(wt.%) of the C 74

Element Min Max Similar

Mechanical Properties of steel grade C 74

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)
714 (≥) 144 (≥) 12 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade C 74

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
23 - -     0.32 -  
589 839 - 22.3 243   -  
227 - 14 12.2   124 314

Heat Treatment of steel grade C 74

Heat treated : 1292°C - 1236°C

Technological Curves of steel grade C 74

Cross Reference Table (Equivalent Grade) of C 74

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