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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)
477 (≥) 572 (≥) 33 33 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

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
23 - -     0.32 -  
589 661 - 21.3 432   -  
386 - 12 12.2   423 133

Heat Treatment of steel grade Grade A

Heat treated : 1581°C - 1647°C

Technological Curves of steel grade Grade A

Cross Reference Table (Equivalent Grade) of Grade A

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