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Japan JIS 60-HH340 热硬化钢轨 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 60-HH340 / 60-HH340
Category Grade Standard Region/Area Standard Content
Metals 60-HH340 JIS E1120 Japan 热硬化钢轨

Chemical composition(mass fraction)(wt.%) of the 60-HH340

Element Min Max Similar
V - 0.0300 -
Si 0.1000 0.5500 -
S - 0.0200 -
P - 0.0300 -
Mn 0.7000 1.1000 -
Cr - 0.2000 -
C 0.7200 0.8200 -

Mechanical Properties of steel grade 60-HH340

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)
146 (≥) 158 (≥) 23 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade 60-HH340

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
21 - -     0.21 -  
543 224 - 13.3 322   -  
261 - 24 14.2   233 423

Heat Treatment of steel grade 60-HH340

Heat treated : 1786°C - 1647°C

Technological Curves of steel grade 60-HH340

Cross Reference Table (Equivalent Grade) of 60-HH340

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