AL34 (VAL5, AK8l)

The alloy has high integrity and is used for molding body parts working under high internal pressure and liquid gazov. Splav system based on aluminum — silicon — magnesium (silumin)

Classification

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

Chemical composition

Standard Fe, % Si, % B, % Be, % Mg, % Mn, % Ti, % Cu, % Zn, % Zr, % Al, %
GOST 1583-93 < 0.6 6.5–8.5 < 0.1 0.15–0.4 0.35–0.55 < 0.1 0.1–0.3 < 0.3 < 0.3 < 0.2 89.25–92.9

Information on suppliers

Physical characteristics

Temperature, °C $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 2630 46.2
100 20.7 155 840

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ $$\epsilon_L$$, % $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ Treatment
200 130 3 300 Chill casting
330 280 3 250 Sand casting
270 160 3 injection molding

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Casting in sandy form 75–90
Casting in chill mold 70–110
Casting under pressure 74–90

Casting and technological parameters

linear shrinkage, %
1.1

Analogues

USA Germany
358 G-AlSi7Mg wa

Standards

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Be % Beryllium
Mg % Magnesium
Mn % Manganese
Ti % Titan
Cu % Copper
Zn % Zinc
Zr % Zirconium
Al % Aluminium

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
$$c\cdot 10^{-3}$$ $$\frac{J}{kg\cdot K}$$ The specific heat of the material (range 20°C–T)
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness

Description of the casting and technological parameters

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