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C 57 GT-N

International ISO C57GT-N Railway rolling stock material - Part 1: Rough-rolled tyres for tractive and trailing stock - Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C57GT-N / C 57 GT-N
Category Grade Standard Region/Area Standard Content
Metals C 57 GT-N ISO 1005-1 International Railway rolling stock material - Part 1: Rough-rolled tyres for tractive and trailing stock - Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the C 57 GT-N

Element Min Max Similar
V - 0.0500 -
Si - 0.3800 -
S - 0.0350 -
P - 0.0350 -
Ni - 0.2800 -
Mo+Ni+Cr - 0.6000 -
Mo - 0.0800 -
Mn - 1.0500 -
Cu - 0.2800 -
Cr - 0.2800 -
C - 0.5700 -

Mechanical Properties of steel grade C 57 GT-N

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)
994 (≥) 164 (≥) 14 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade C 57 GT-N

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
41 - -     0.23 -  
458 328 - 31.3 324   -  
871 - 42 24.2   221 414

Heat Treatment of steel grade C 57 GT-N

Heat treated : 1647°C - 1239°C

Technological Curves of steel grade C 57 GT-N

Cross Reference Table (Equivalent Grade) of C 57 GT-N

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