Alloy 34A (Alkusin)

No foreign analogues

It is used as a substitute for babbits, used in sleeve bearings


Country Section Category
CIS, Russia, Ukraine Aluminum, aluminum alloys Antifriction aluminum alloy

Chemical composition

Standard Si, % Cu, % Al, %
GOST 1583-93 6–6.5 28–29 64.5–66

Information on suppliers

Physical characteristics

Temperature, °C $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\rho$$, $$\frac{kg}{m^3}$$
20 20–30 2900

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ d5, % Treatment
Castings GOST 1583-93 400 Transverse 30–35 25–28 3–5

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Castings GOST 1583-93 350–400

Casting and technological parameters

melting point, °C

Limit operating modes

Standard Температура, °C
GOST 1583-93 < 200


It is applied at sliding speeds up to 4 m / s


Standard Description
GOST 1583-93

Description of chemical elements

Element Units of measurement Description
Si % Silicon
Cu % Copper
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)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material

Description of mechanical properties

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

Description of the casting and technological parameters

Parameter Units of measurement Description
melting point °C The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa