Constantan Strip/Wire/Sheet Cupro-Nickel/CuNi44/CuNi40mn1 Low Resistance Round Bare Wire for Car Seat Heating
Constantan Strip/Wire/Sheet Cupro-Nickel/CuNi44/CuNi40mn1 for Car Seat Heating
Cooper Nickel alloys principally destined for the manufacturing of low temperatures electric resistances so as heating cables,shunts,resistances for automobile,they have a maximum operating temperature of 752℉. The most known,CuNi44 (also called Constantan)presents the advantage of a very low temperature coefficient.
copper nickel alloy includes : Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23CuNi30, CuNi34, CuNi44.
Strip/Tape/Wire/Foil/Rod dimension available
Wire: 0.018-10mm Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.02*2.5-5.0*250mm
Bars: OD 4-100mm
Specifications
Normal composition%
| Nickel | 45 | Manganese | 1 |
| Copper | Bal. |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 250 | 420 | 25 |
Typical Physical properties
| Density (g/cm3) | 8.9 |
| Electrical resistivity at 20ºC (ohm*mm2/m) | 0.49 |
| Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC | -6 |
| Conductivity coefficient at 20ºC (WmK) | 23 |
| EMF vs Cu(μV/ºC )(0~100ºC ) | -43 |
Coefficient of thermal expansion |
|
| Temperature | Thermal Expansion x10-6/K |
| 20 ºC- 400ºC | 15 |
| Specific heat capacity | |
| Temperature | 20ºC |
| J/gK | 0.41 |
| Melting point (ºC) | 1280 |
| Max continuous operating temperature in air (ºC) | 400 |
| Magnetic properties | non-magnetic |
Corrosion resistance performance
Alloys |
Working In atmosphere at 20ºC |
Working at max temperature 200ºC | ||||
| Air and oxygen contain gases |
gases with Nitrogen | gases with sulfur oxidability |
gases with sulfur reductibility |
carburization | ||
| UALLOY049 | good | good | good | good | bad | good |
|
Alloy
|
Resistivity ( 20C μΩ.m) |
Max.working Temperature ( 0C) |
Tensile Strength (Mpa) |
Melting point (0C) |
Density ( g/cm3) |
TCR x10-6/ 0C (20~600 0C) |
EMF vs Cu (μV/ 0C) (0~100 0C) |
| NC003-CuNI1 | 0.03 | 200 | 210 | 1085 | 8.9 | <100 | -8 |
| NC005-CuNi2 | 0.05 | 200 | 220 | 1090 | 8.9 | <120 | -12 |
| NC010-CuNi6 | 0.1 | 220 | 250 | 1095 | 8.9 | <60 | -18 |
| NC012-CUNi8 | 0.12 | 250 | 270 | 1097 | 8.9 | <57 | -22 |
| NC015-CuNi10 | 0.15 | 250 | 290 | 1100 | 8.9 | <50 | -25 |
| NC020-CuNi14 | 0.2 | 300 | 310 | 1115 | 8.9 | <30 | -28 |
| Nc025-CuNi19 | 0.25 | 300 | 340 | 1135 | 8.9 | <25 | -32 |
| NC030-CuNi23 | 0.3 | 300 | 350 | 1150 | 8.9 | <16 | -34 |
| NC035-CuNi30 | 0.35 | 350 | 400 | 1170 | 8.9 | <10 | -37 |
| NC040-CuNi34 | 0.4 | 350 | 400 | 1180 | 8.9 | 0 | -39 |
| NC050-CuNi44 | 0.49 | 400 | 420 | 1200 | 8.9 | <-6 | -43 |
Cuni resistance alloy application
CuNi alloy wires and strip/Tape typically used in heating cables, fuses, resistors and various types of controllers, electric car controller, the instruments and meters, the integrated circuit, the sample electric current, the resistor. And low pressure resistance and so on
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