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.


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


Standard Description
GOST 6836-2002

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