BrAZhN10-4-4

Pipe boards capacitors, parts of chemical equipment; semi-finished products (rods, tubes, forgings)

Classification

Country Section Category
CIS, Russia, Ukraine Bronze Pressureless bronze plated

Chemical composition

Standard Fe, % Si, % Sn, % Mn, % Cu, % Zn, % Ni, % Al, % Pb, % P, %
GOST 18175-78 3.5–5.5 < 0.1 < 0.1 < 0.3 77.4–83.5 < 0.3 3.5–5.5 9.5–11 < 0.02 < 0.01

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Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 115 80 7500 0.19
100 17.1

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Trumpet 640 5
Round compacting 640 5

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Trumpet 170–220
Round compacting 170–220

Casting and technological parameters

melting point, °C Hot working temperature, °C annealing temperature, °C
1084 800–900 700–750

Coefficients of Friction

coefficient of friction with lubrication coefficient of friction without lubrication
0.011 0.23
BrAZhN10-4-4 / Aloro

Standards

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Sn % Tin
Mn % Manganese
Cu % Copper
Zn % Zinc
Ni % Nickel
Al % Aluminium
Pb % Lead
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)

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
Hot working temperature °C The temperature at which the plastic-deformed metal recrystallizes during the pressure treatment
annealing temperature °C The temperature at which the processes return recrystallization and homogenization of the metal to reduce its hardness for subsequent machining