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