Metals -> Aluminium alloy -> Aluminium wrought alloys Characteristics of the material АK4 ( АК4 ).
Material : АK4 ( АК4 ) Classification : Aluminium wrought alloys
Chemical composition in % of the material АK4 ( АК4 ) . Fe Si Mn Ni Ti Al Cu Mg Zn Impurity 0.8 - 1.3 0.5 - 1.2 max 0.2 0.8 - 1.3 max 0.1 91.2 - 94.6 1.9 - 2.5 1.4 - 1.8 max 0.3 other, each 0.05; all 0.1
Comment: Al is a basis; the percentage of Al is given approximately. Mechanical properties under Т=20o С of the material АK4 ( АК4 ) .
Assortment Dimension Direct. s в s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Forging 360 260 3
Brinell hardness of the material АK4 ( АК4 ) , HB 10 -1 = 100 MPa Brinell hardness of the material АK4 ( АК4 ) (quenching, ageing , HB 10 -1 = 120 MPa
Physical properties of the material АK4 ( АК4 ) . T E 10- 5 a 10 6 l r C R 10 9 Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m 20 0.72 180 2770 100 22
Specification :
Mechanical properties : s в - Tensile strength , [MPa] s T - Yield stress, [MPa] d 5 - Specific elongation at fracture , [ % ] y - Reduction of area , [ % ] KCU - Impact strength , [ kJ / m2 ] HB - Brinell hardness , [MPa]
Physical properties : T - Test temperature , [Grade] E - Young modulus , [MPa] a - Coefficient of linear expansion
(range 20o - T ) , [1/Grade] l - Termal (heat) condition coefficient , [Watt/(m·Grade)] r - Density , [kg/m3 ] C - Specific heat
( range 20o - T ), [J/(kg·Grade)] R - Electrical resistance , [Ohm·m]
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