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China GB A4 电工圆铝杆 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A4 / A4
Category Grade Standard Region/Area Standard Content
Metals A4 GB/T 3954 China 电工圆铝杆

Chemical composition(mass fraction)(wt.%) of the A4

Element Min Max Similar

Mechanical Properties of steel grade A4

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)
194 (≥) 766 (≥) 21 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade A4

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 - -     0.24 -  
535 517 - 33.3 332   -  
294 - 13 14.2   123 344

Heat Treatment of steel grade A4

Heat treated : 1965°C - 1695°C

Technological Curves of steel grade A4

Cross Reference Table (Equivalent Grade) of A4

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