Aluminum alloy AK7pch (AL9-1)

  • Chemical composition
Al Aluminum Rest
Be Beryllium <0.1
B Boron <0.1
Fe Iron <0.4
Si Silicon 7.0 — 8.0
Mg Magnesium 0.25 — 0.45
Mn Manganese <0.1
Cu Copper <0.1
Sn Tin <0.005
Pb Lead <0.03
Sr Strontium <0.08
Ti Titanium <0.08
Zn Zinc <0.2
Zr Zirconium <0.15
Ot Total impurities <0.7

Casting methods:
Z — sand casting
B — Lost wax casting
K — chill casting
D — injection molding

Mark designation:
h — clean
bees — high purity
och — high purity
l — casting alloys
c — selective

For the manufacture of shaped castings; the alloy is highly tight. Technical requirements — according to GOST 1583−93

Classification

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

Chemical composition

Standard Fe, % Si, % B, % Be, % Sn, % Mg, % Mn, % Ti, % Cu, % Zn, % Zr, % Al, % Pb, %
< 0.3 7–8 < 1 < 1 < 5 25–4 < 0.1 0.08–0.15 < 0.1 < 2 < 15 90.37–92.67 < 3

Information on suppliers

Physical characteristics

Temperature, °C $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 2660 46.7
100 21.8 380

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ δ, % Treatment
Casting GOST 1583-93 167–294 146

Analogues

USA Germany Japan France China
336 G-AlSi7Mg AC4CH A-S7G03 ZAlSi7MgA

Standards

Standard Description
GOST 1583-93

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Be % Beryllium
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)
$$\rho$$ $$\frac{kg}{m^3}$$ 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
δ % Elongation after rupture
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength