Electric motor collectors, resistance welding machine parts and other parts

Magnesium bronze. High electrical conductivity and heat resistance


Country Section Category
CIS, Russia, Ukraine Bronze Bronze, heatproof

Chemical composition

Standard Mg, % Cu, %
GOST 614-97 0.2–0.5 99.3–99.6

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 1.23 17.6 243 8910 24

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\psi$$, % Treatment
Round GOST 614-97 490 3


Germany USA
CuMg0.4 C18665


Standard Description
GOST 614-97
GOST 18175-78
GOST 4134-15

Description of chemical elements

Element Units of measurement Description
Mg % Magnesium
Cu % Copper

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)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ 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
$$\psi$$ % Reduction in cross section on fracture