BrA9Zh3L

anti-friction parts, valve parts

Classification

Country Section Category
CIS, Russia, Ukraine Bronze Tinless cast bronze

Chemical composition

Standard Fe, % Si, % Sn, % Mn, % Cu, % Zn, % Ni, % Sb, % Al, % Pb, % As, % P, %
GOST 493-79 2–4 < 0.2 < 0.2 < 0.5 82.8–90 < 1 < 1 < 0.05 8–10.5 < 0.1 < 0.05 < 0.1

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 120 16 58.6 7600 0.11

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Casting GOST 493-79 in chill mold 490 12
Casting GOST 493-79 in sandy form 392 10

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Casting GOST 493-79 in chill mold 100
Casting GOST 493-79 in sandy form 100

Coefficients of Friction

coefficient of friction with lubrication coefficient of friction without lubrication
0.004 0.18

Analogues

Germany USA
2.0941 C95200

Standards

Standard Description
GOST 493-79

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Sn % Tin
Mn % Manganese
Cu % Copper
Zn % Zinc
Ni % Nickel
Sb % Antimony
Al % Aluminium
Pb % Lead
As % Arsenic
P % Phosphorus

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
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)