SrM87.5 (SrM875)
Silver-copper alloy. Melting point: 779 — 830 ° C
For the manufacture of sliding contacts, electrical conductors and other products and technical purposes.
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Precious metals |
Silver, silver alloys |
Chemical composition
| Standard |
Fe, % |
Bi, % |
Cu, % |
Sb, % |
Pb, % |
Ag, % |
|---|
| GOST 6836-2002 |
< 0.1 |
< 0.002 |
11.98–12.69 |
< 0.002 |
< 0.004 |
87.2–87.8 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$\rho$$, $$\frac{kg}{m^3}$$ |
|---|
| 20 |
10280 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\epsilon_L$$, % |
Treatment |
|---|
| Wire |
GOST 7222-75 |
0.8–4 |
|
solid |
350 |
|
|
| Wire |
GOST 7222-75 |
0.8–4 |
|
soft |
250 |
20 |
|
Casting and technological parameters
| melting point, °C |
|---|
| 779–830 |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Bi |
% |
Bismuth |
| Cu |
% |
Copper |
| Sb |
% |
Antimony |
| Pb |
% |
Lead |
| Ag |
% |
Silver |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
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 |