D18 (1180)

For the manufacture of wire for rivets.

Classification

Country Section Category
CIS, Russia, Ukraine Aluminum, aluminum alloys Wrought Aluminum Alloys

Chemical composition

Standard Fe, % Si, % Mg, % Mn, % Cr, % Cu, % Zn, % Al, %
GOST 4784-97 < 0.5 < 0.5 0.2–0.5 < 0.2 < 0.1 2.2–3 < 0.1 94.35–97.6

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 71 2740 0.039
100 23.4 172 0.922

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % Treatment
Wire 300 170 24 50 Quenching and aging
Wire 160 60 25 Annealing

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy Hardening, aging 70
Alloy annealing 38

Analogues

Germany USA
3.1305 AA2117

Standards

Standard Description
GOST 4784-97

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mg % Magnesium
Mn % Manganese
Cr % Chrome
Cu % Copper
Zn % Zinc
Al % Aluminium

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ 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
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\sigma_{P}$$ $$MPa$$ Proportionality limit
$$\epsilon_L$$ % Elongation at break (longitudinal)
$$\psi$$ % Reduction in cross section on fracture