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International ISO 2CD70B Steel wire rod - Part 2: Quality requirements for unalloyed steel wire rods for conversion to wire and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 2CD70B / 2CD70B
Category Grade Standard Region/Area Standard Content
Metals 2CD70B ISO 8457-2 International Steel wire rod - Part 2: Quality requirements for unalloyed steel wire rods for conversion to wire

Chemical composition(mass fraction)(wt.%) of the 2CD70B

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0400 -
P - 0.0400 -
Mn 0.6000 1.0000 -
C 0.6800 0.7300 -

Mechanical Properties of steel grade 2CD70B

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)
414 (≥) 741 (≥) 41 44 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade 2CD70B

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
33 - -     0.42 -  
768 896 - 32.3 431   -  
661 - 23 11.2   431 212

Heat Treatment of steel grade 2CD70B

Heat treated : 1926°C - 1741°C

Technological Curves of steel grade 2CD70B

Cross Reference Table (Equivalent Grade) of 2CD70B

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