PSr25
Melting point: 740 — 775 ° C
Tinning and soldering of copper, copper and copper-nickel alloys, nickel, Kovar, nickel silver, brass and bronze; Pike steel with copper, nickel, copper and copper-nickel alloys; Soldering and tinning of jewelry
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Precious metals | Silver solders |
Chemical composition
| Standard | Fe, % | Bi, % | Cu, % | Zn, % | Pb, % | Ag, % |
|---|---|---|---|---|---|---|
| < 0.1 | < 0.005 | 38.395–41.91 | 33.39–36.15 | < 0.05 | 24.7–25.3 |
Information on suppliers
Physical characteristics
| Temperature, °C | $$\rho$$, $$\frac{kg}{m^3}$$ |
|---|---|
| 20 | 8700 |
Casting and technological parameters
| melting point, °C |
|---|
| 740–775 |
Standards
| Standard | Description |
|---|---|
| GOST 19738 - 2015 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Bi | % | Bismuth |
| Cu | % | Copper |
| Zn | % | Zinc |
| 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 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 |