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Italy UNI C50 淬火和回火钢 - 第2部分:非合金钢的交货技术条件。 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C50 / C 50
Category Grade Standard Region/Area Standard Content
Metals C 50 UNI EN 10083-2 Italy 淬火和回火钢 - 第2部分:非合金钢的交货技术条件。

Chemical composition(mass fraction)(wt.%) of the C 50

Element Min Max Similar
Si 0.1500 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.6000 0.9000 -
C 0.4700 0.5500 -
Si - 0.4000 -
S - 0.0450 -
P - 0.0450 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.6000 0.9000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.4700 0.5500 -
Si - 0.4000 -
S - 0.0450 -
Pb - - -
P - 0.0450 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.6000 0.9000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.4700 0.5500 -
Si 0.1500 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.6000 0.9000 -
C 0.4700 0.5500 -
Si 0.1200 0.4200 -
S - 0.0400 -
P - 0.0400 -
Mn 0.5600 0.9400 -
C 0.4500 0.5700 -
Si 0.1500 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.6000 0.9000 -
C 0.4700 0.5500 -

Mechanical Properties of steel grade C 50

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)
155 (≥) 948 (≥) 44 23 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade C 50

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
32 - -     0.41 -  
275 134 - 34.3 313   -  
598 - 21 24.2   433 243

Heat Treatment of steel grade C 50

Heat treated : 1719°C - 1919°C

Technological Curves of steel grade C 50

Cross Reference Table (Equivalent Grade) of C 50

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