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Russia GOST AK4 Aluminium and wrought aluminium alloys - grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AK4 / AK4
Category Grade Standard Region/Area Standard Content
Metals AK4 GOST 4784 Russia Aluminium and wrought aluminium alloys - grades

Chemical composition(mass fraction)(wt.%) of the AK4

Element Min Max Similar

Mechanical Properties of steel grade AK4

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)
266 (≥) 112 (≥) 22 31 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade AK4

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
34 - -     0.12 -  
692 844 - 44.3 211   -  
352 - 24 42.2   124 233

Heat Treatment of steel grade AK4

Heat treated : 1762°C - 1822°C

Technological Curves of steel grade AK4

Cross Reference Table (Equivalent Grade) of AK4

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