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China TB GradeA 铁道用合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GradeA / Grade A
Category Grade Standard Region/Area Standard Content
Metals Grade A TB/T 3014 China 铁道用合金钢锻件

Chemical composition(mass fraction)(wt.%) of the Grade A

Element Min Max Similar

Mechanical Properties of steel grade Grade A

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)
524 (≥) 177 (≥) 43 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade Grade A

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 - -     0.42 -  
125 517 - 22.3 344   -  
424 - 41 11.2   343 342

Heat Treatment of steel grade Grade A

Heat treated : 1621°C - 1578°C

Technological Curves of steel grade Grade A

Cross Reference Table (Equivalent Grade) of Grade A

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