BrOF7-0.2

Rods, used in various industries proiyshlennosti (for gears, gears, bushings and gaskets heavy duty vehicles)

Classification

Country Section Category
CIS, Russia, Ukraine Bronze Pressure Tin Bronze

Chemical composition

Standard Fe, % Si, % Sn, % Bi, % Cu, % Zn, % Ni, % Sb, % Al, % Pb, % P, %
GOST 5017-2006 < 0.05 < 0.005 7–8 < 0.002 91.27–92.8 < 0.3 < 0.2 < 0.002 < 0.002 < 0.02 0.1–0.25

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 115 41.9 8600 0.17
100 17

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Round soft, cold rolling 390 40
Round solid, cold rolling 520–570 6–10
Round compacting 360–570 55

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Round cold rolling, soft 0–0
Round cold rolling, solid 1500–1800
Round compacting 0–0

Casting and technological parameters

melting point, °C annealing temperature, °C
900 600–650

Coefficients of Friction

coefficient of friction with lubrication coefficient of friction without lubrication
0.011 0.33

Analogues

Germany USA
2.103 C52100

Standards

Standard Description
GOST 5017-2006 Wrought tin bronzes. Grades

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Sn % Tin
Bi % Bismuth
Cu % Copper
Zn % Zinc
Ni % Nickel
Sb % Antimony
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
annealing temperature °C The temperature at which the processes return recrystallization and homogenization of the metal to reduce its hardness for subsequent machining