Metals -> Aluminium alloy -> Aluminium casting alloys Characteristics of the material АL27 ( АЛ27 ).
Material : АL27 ( АЛ27 ) Classification : Aluminium casting alloys
Chemical composition in % of the material АL27 ( АЛ27 ) . Fe Si Mn Ti Al Cu Zr Be Mg Zn Impurity max 0.2 max 0.2 max 0.1 0.05 - 0.15 88.5 - 90.35 max 0.15 0.05 - 0.2 max 0.05 9.5 - 10.5 max 0.1 all 0.5
Comment: Al is a basis; the percentage of Al is given approximately. Mechanical properties under Т=20o С of the material АL27 ( АЛ27 ) .
Assortment Dimension Direct. s в s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - sand (mould) casting 360 18 150
Brinell hardness of the material АL27 ( АЛ27 ) , sand (mould) casting HB 10 -1 = 75 MPa
Physical properties of the material АL27 ( АЛ27 ) . 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 2550 100 24.5 89 1050
Technological properties of the material АL27 ( АЛ27 ) . Linear shrinkage, % : 1.2
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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