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Italy UNI C25 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: C25 / C 25
Category Grade Standard Region/Area Standard Content
Metals C 25 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 25

Element Min Max Similar
Si 0.1500 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.4000 0.8000 -
C 0.2200 0.2900 -
Si 0.1500 0.4000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.4000 0.8000 -
C 0.2200 0.2900 -
Si - 0.4000 -
S - 0.0450 -
P - 0.0450 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.4000 0.7000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.2200 0.2900 -

Mechanical Properties of steel grade C 25

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)
188 (≥) 494 (≥) 31 14 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade C 25

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
13 - -     0.13 -  
284 241 - 34.3 341   -  
517 - 23 43.2   241 332

Heat Treatment of steel grade C 25

Heat treated : 1872°C - 1148°C

Technological Curves of steel grade C 25

Cross Reference Table (Equivalent Grade) of C 25

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