BrOTsS4-4-4
Tapes and strips used for gaskets and bearings in the hubs of cars and tractors
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Bronze |
Pressure Tin Bronze |
Chemical composition
| Standard |
Fe, % |
Sn, % |
Bi, % |
Cu, % |
Zn, % |
Ni, % |
Sb, % |
Al, % |
Pb, % |
P, % |
|---|
| GOST 5017-2006 |
< 0.05 |
3–5 |
< 0.002 |
85–90.5 |
3–5 |
< 0.3 |
< 0.002 |
< 0.002 |
3.5–4.5 |
< 0.03 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
$$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
$$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
|---|
| 20 |
72 |
|
9100 |
0.09 |
| 100 |
|
18.1 |
|
|
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\epsilon_L$$, % |
Treatment |
|---|
| Alloy |
|
|
|
soft |
320–360 |
30–40 |
|
| Alloy |
|
|
|
solid |
500–600 |
1–2 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Alloy |
|
soft |
0–0 |
Casting and technological parameters
Coefficients of Friction
| coefficient of friction with lubrication |
coefficient of friction without lubrication |
|---|
| 0.016 |
0.26 |
Analogues
| Germany |
USA |
|---|
| MSnBz4Pb |
88Cu-4Pb-4Sn-4Zn |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| 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) |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
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 |