MNMts3-12 (Manganin)

for electrical purposes, measuring instruments

Classification

Country Section Category
CIS, Russia, Ukraine Copper, copper alloys Copper-Nickel Alloys

Chemical composition

Standard Fe, % Si, % Mg, % Bi, % Mn, % Cu, % Sb, % Pb, % As, % P, % C, % S, % Ni + Co, %
GOST 492-2006 < 0.5 < 0.1 < 0.03 < 0.002 11.5–13.5 82.1–86 < 0.002 < 0.02 < 0.005 < 0.005 < 0.05 < 0.02 2.5–3.5

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 127 22 8400 0.435
100 16

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
The alloy is soft 400–550 30–35
Alloy hard 800–900 2–4

Brinell hardness number

Rolling Standard Classifiers Value, HBW
The alloy is soft 1200

Casting and technological parameters

melting point, °C Hot working temperature, °C annealing temperature, °C
1010 750–850 700–750

Analogues

Germany CIS, Russia, Ukraine
CuMn12Ni Manganin 13

Standards

Standard Description
GOST 492-2006
GOST 492-1973
GOST 10092-2006
DSTU GOST 492:2007

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mg % Magnesium
Bi % Bismuth
Mn % Manganese
Cu % Copper
Sb % Antimony
Pb % Lead
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur
Ni + Co % Nickel + Cobalt

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
$$\epsilon_L$$ % 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
Hot working temperature °C The temperature at which the plastic-deformed metal recrystallizes during the pressure treatment
annealing temperature °C The temperature at which the processes return recrystallization and homogenization of the metal to reduce its hardness for subsequent machining