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YQ450NbRE

China YB YQ450NbRE 热轨310乙字型钢(Hot rolling 310 乙 shape steel) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: YQ450NbRE / YQ450NbRE
Category Grade Standard Region/Area Standard Content
Metals YQ450NbRE YB/T 5182 China 热轨310乙字型钢(Hot rolling 310 乙 shape steel)

Chemical composition(mass fraction)(wt.%) of the YQ450NbRE

Element Min Max Similar
RE 0.0050 0.0150 -
V 0.0200 0.1500 -
Nb 0.0150 0.0600 -
Ni 0.2000 0.5000 -
Cu 0.2000 0.5000 -
S - 0.0150 -
P - 0.0300 -
Mn - 1.7000 -
Si - 0.5000 -
C - 0.1300 -

Mechanical Properties of steel grade YQ450NbRE

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)
635 (≥) 853 (≥) 32 31 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade YQ450NbRE

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 - -     0.21 -  
471 836 - 44.3 423   -  
775 - 23 31.2   112 344

Heat Treatment of steel grade YQ450NbRE

Heat treated : 1688°C - 1269°C

Technological Curves of steel grade YQ450NbRE

Cross Reference Table (Equivalent Grade) of YQ450NbRE

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