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Italy UNI C31 Cold rolled flat finished unalloyed steel products. Strips with carbon content between 010 and 060% and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C31 / C 31
Category Grade Standard Region/Area Standard Content
Metals C 31 UNI 7065 Italy Cold rolled flat finished unalloyed steel products. Strips with carbon content between 010 and 060%

Chemical composition(mass fraction)(wt.%) of the C 31

Element Min Max Similar
Si - 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.5000 0.8000 -
C 0.2700 0.3400 -

Mechanical Properties of steel grade C 31

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)
341 (≥) 541 (≥) 22 43 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade C 31

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 - -     0.32 -  
235 374 - 44.3 114   -  
431 - 33 24.2   233 221

Heat Treatment of steel grade C 31

Heat treated : 1575°C - 1959°C

Technological Curves of steel grade C 31

Cross Reference Table (Equivalent Grade) of C 31

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