LTS40S
Lead brass. Melting point 885 ° C. Hardness (GOST 17711−93) HB 10 -1 = 70−80 MPa. Coefficient of friction with lubrication: 0.013. Friction coefficient without lubrication: 0.17
For injection valves, plugs and separators ball and roller bearings
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Brass (copper-zinc alloy) |
Foundry brass |
Chemical composition
| Standard |
Fe, % |
Si, % |
Sn, % |
Mn, % |
Cu, % |
Zn, % |
Ni, % |
Sb, % |
Al, % |
Pb, % |
|---|
| GOST 17711-93 |
< 0.8 |
< 0.3 |
< 0.5 |
< 0.5 |
57–61 |
35–42.2 |
< 1 |
< 0.05 |
< 0.5 |
0.8–2 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
$$\varkappa$$, $$\frac{W}{m\cdot K}$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
$$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
|---|
| 20 |
20.1 |
108.8 |
8500 |
0.068 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\epsilon_L$$, % |
Treatment |
|---|
| Round |
|
|
|
|
200–250 |
15–20 |
|
| Casting |
GOST 17711-93 |
|
|
in chill mold |
215 |
20 |
|
| Casting |
GOST 17711-93 |
|
|
in sandy form |
215 |
12 |
|
| Casting |
GOST 17711-93 |
|
|
centrifugal |
215 |
20 |
|
Brinell hardness number
Casting and technological parameters
Coefficients of Friction
| coefficient of friction with lubrication |
coefficient of friction without lubrication |
|---|
| 0.013 |
0.17 |
Standards
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 |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$\alpha\cdot 10^{6}$$ |
$$K^{-1}$$ |
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 |