Constantan CuNi44Mn1 Copper Nickel Wire 0.6mm for Heating Wires
Product brief introduction
Constantan Konstantan CuNi44Mn1 Copper Nickel wire 0.6mm for heating wires.
Tankii Alloys is a copper – nickel alloy (CuNi44Mn1 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C. Typical applications for Tankii Alloys are temperature – stable potentiometers, industrial rheostats and electric motor starter resistances.
The combination of negligible temperature coefficient and high resistivity makes the alloy particularly suitable for the winding of precision resistors.
Alloys is manufactured from electrolytic copper and pure nickel by Tankii Co.Ltd, the alloy is designated and available in many wire sizes.
Normal composition%
| Element | Content |
|---|---|
| Nickel | 45 |
| Manganese | 1 |
| Copper | Bal. |
Typical Mechanical properties (1.0mm)
| Property | Value |
|---|---|
| Yield strength (Mpa) | 250 |
| Tensile Strength (Mpa) | 420 |
| Elongation (%) | 25 |
Typical Physical properties
| Property | Value |
|---|---|
| Density (g/cm3) | 8.9 |
| Electrical resistivity at 20℃ (Ωmm²/m) | 0.49 |
| Temperature factor of resistivity(20℃~600℃)X10⁻⁵/℃ | -6 |
| Conductivity coefficient at 20℃ (WmK) | 23 |
| EMF vs Cu(μV/℃ )(0~100℃ ) | -43 |
Coefficient of thermal expansion
| Temperature Range | Thermal Expansion x10⁻⁶/K |
|---|---|
| 20 ℃ – 400℃ | 15 |
Specific heat capacity
| Temperature | Value (J/gK) |
|---|---|
| 20℃ | 0.41 |
Melting point (℃)|1280|
|Max continuous operating temperature in air (℃)|400|
|Magnetic properties|non – magnetic|
Alloys – Working Environment Performance
| Alloy Name | Working In atmosphere at 20℃ | Working at max temperature 200℃ (Air and oxygen contain gases) | Working at max temperature 200℃ (gases with Nitrogen) | Working at max temperature 200℃ (gases with sulfur – oxidability) | Working at max temperature 200℃ (gases with sulfur – reductibility) | Working at max temperature 200℃ (carburization) |
|---|---|---|---|---|---|---|
| Tankii Alloys | good | good | good | good | bad | good |
Style of Supply
| Alloys Name | Type | Dimension |
|---|---|---|
| Tankii Alloys-W | Wire | D = 0.02mm~1mm |
| Tankii Alloys-R | Ribbon | W = 0.4~40, T = 0.03~2.9mm |
| Tankii Alloys-S | Strip | W = 8~200mm, T = 0.1~3.0 |
| Tankii Alloys-F | Foil | W = 6~120mm, T = 0.003~0.1 |
| Tankii Alloys-B | Bar | Dia = 8~100mm, L = 50~1000 |
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