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EU EU CT70 冷作合金工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CT70 / CT 70
Category Grade Standard Region/Area Standard Content
Metals CT 70 EU 96 EU 冷作合金工具钢

Chemical composition(mass fraction)(wt.%) of the CT 70

Element Min Max Similar
Si 0.1000 0.3000 -
S - 0.0200 -
P - 0.0200 -
Mn 0.1000 0.3500 -
C 0.6500 0.7400 -

Mechanical Properties of steel grade CT 70

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)
416 (≥) 764 (≥) 33 42 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade CT 70

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
11 - -     0.43 -  
811 343 - 22.3 342   -  
491 - 22 11.2   111 112

Heat Treatment of steel grade CT 70

Heat treated : 1477°C - 1238°C

Technological Curves of steel grade CT 70

Cross Reference Table (Equivalent Grade) of CT 70

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