AL7 (AK10Su)

For the manufacture of shaped castings.

Classification

Country Section Category
CIS, Russia, Ukraine Aluminum, aluminum alloys Foundry aluminum alloys

Chemical composition

Standard Fe, % Si, % Sn, % Mg, % Mn, % Ti, % Cu, % Zn, % Zr, % Al, % Pb, %
GOST 2685-75 < 1 < 1.2 < 0.01 < 0.03 < 0.1 < 0.2 4–5 < 0.2 < 0.1 92.9–96 < 0.01

Information on suppliers

Physical characteristics

Temperature, °C $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$
20 138.6 2800
100 23

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Alloy 200–230 3–6
Casting in sandy form 260 200 3 Quenching and aging

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy 60–70
Casting Hardening, aging, in sandy form 85

Casting and technological parameters

linear shrinkage, %
1.4

Analogues

Germany USA
G-AlCu4Ti A02950

Standards

Standard Description
GOST 2685-75
GOST 2171-90 GOST 2171-90

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Sn % Tin
Mg % Magnesium
Mn % Manganese
Ti % Titan
Cu % Copper
Zn % Zinc
Zr % Zirconium
Al % Aluminium
Pb % Lead

Description of physical characteristics

Parameter Units of measurement Description
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\sigma_{P}$$ $$MPa$$ Proportionality limit
$$\epsilon_L$$ % Elongation at break (longitudinal)

Description of the casting and technological parameters

Parameter Units of measurement Description
linear shrinkage % The difference between model dimensions and the model casting