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50NH Grade Ⅱ-2

Japan JIS 50NHGradeⅡ-2 钢轨鱼尾板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 50NHGradeⅡ-2 / 50NH Grade Ⅱ-2
Category Grade Standard Region/Area Standard Content
Metals 50NH Grade Ⅱ-2 JIS E1102 Japan 钢轨鱼尾板

Chemical composition(mass fraction)(wt.%) of the 50NH Grade Ⅱ-2

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0350 -
P - 0.0300 -
Mn 0.6000 0.9000 -
C 0.3500 0.5300 -

Mechanical Properties of steel grade 50NH Grade Ⅱ-2

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)
258 (≥) 519 (≥) 13 14 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 50NH Grade Ⅱ-2

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
44 - -     0.13 -  
829 419 - 23.3 111   -  
167 - 41 31.2   142 331

Heat Treatment of steel grade 50NH Grade Ⅱ-2

Heat treated : 1535°C - 1396°C

Technological Curves of steel grade 50NH Grade Ⅱ-2

Cross Reference Table (Equivalent Grade) of 50NH Grade Ⅱ-2

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