MNMts40-1.5 (Constantan)
for the manufacture of semi-finished products (wire, tape and strip), used for electrical purposes and compensating cables
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 |
< 0.05 |
< 0.002 |
1–2 |
56.1–60 |
< 0.002 |
< 0.005 |
< 0.01 |
< 0.005 |
< 0.1 |
< 0.02 |
39–41 |
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 |
166 |
|
21 |
8900 |
0.48 |
| 100 |
|
14.4 |
|
|
|
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\epsilon_L$$, % |
Treatment |
|---|
| Wire is hard. |
GOST 5307 - 77 |
0.02–5 |
|
|
640 |
|
|
| The wire is soft. |
GOST 5307 - 77 |
0.1–5 |
|
|
440–640 |
15–20 |
|
| The tape is hard. |
GOST 5189-75 |
|
|
|
640 |
|
|
| Tape softly. |
GOST 5189-75 |
|
|
|
390–590 |
|
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| The alloy is soft |
|
|
750–900 |
| Alloy hard |
|
solid |
1550 |
Casting and technological parameters
| melting point, °C |
Hot working temperature, °C |
annealing temperature, °C |
|---|
| 1260 |
1000–1150 |
800–850 |
Standards
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 |