Aluminum Alloy 1925Sh

The alloy is produced using electroslag remelting technology

The alloy is used for the production of profiles and pipes; manufacturing various non-welded and welded structures in construction, engineering and aircraft manufacturing


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

Chemical composition

Standard Fe, % Si, % Mg, % Mn, % Cr, % Ti, % Cu, % Zn, % Zr, % Al, % Примеси, %
GOST 4784-97 < 0.7 < 0.7 1.3–1.8 0.2–0.7 < 0.2 < 0.1 < 0.8 3.4–4 0.1–0.2 90.5–95 < 0.3

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 69 150–170 2770 5

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ d5, % Treatment
Trumpet GOST 4784-97 200 Transverse raw, compacting, fat, Transverse 290–330 150–170 10–12

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Trumpet GOST 4784-97 annealing, compacting, fat, Transverse 170–190

Technological Properties

Not applicable for welded structures


Сплав Д25


Standard Description
GOST 4784-97

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Примеси % Impurities
Si % Silicon
Mg % Magnesium
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Zn % Zinc
Zr % Zirconium
Al % Aluminium

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures