Low Resistance Alloy Constantan Foil Self Adhesive Foil Cold Rolling
Low Resistance Alloy Constantan Foil
Constantan( Ualloy049)
(Common Name: CuNi45, NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)
Ualloy049 is a copper-nickel alloy (Cu56Ni44 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 Ualloy049 are temperature-stable potentiometers, industrial rheostats and electric motor starter resistances.
The combination of negligible temperature coefficient and high resistivity makes the alloy particulary suitable for the winding of precision resistors.
Ualloy049 is manufactured from electrolytic copper and pure nickel. In finer wire sizes the alloy is designated as Ualloy049TC(Thermocouple).
Normal composition%
| Nickel | 45 | Manganese | 1 |
| Copper | Bal. |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 250 | 420 | 25 |
| 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 | ||
| OhmAlloy049 | good | good | good | good | bad | good |
Style of supply
| Alloys Name | Type | Dimension | |
| Ualloy049W | Wire | D=0.03mm~8mm | |
| Ualloy049R | Ribbon | W=0.4~40 | T=0.03~2.9mm |
| Ualloy049S | Strip | W=8~200mm | T=0.1~3.0 |
| Ualloy049F | Foil | W=6~120mm | T=0.003~0.1 |
| Ualloy049B | Bar | Dia=8~100mm | L=50~1000 |
The thermocouple alloy wires with different varieties and specifications of our company can be applied in all kinds of thermocouples, the temperature ranges from -270ºC to 1800ºC. The thermocouple alloy wires have excellent performance and are extensively used in the temperature measurement and control in different fields, such as metallurgy, chemical industry, petroleum industry, machinery-electric industry, energy industry, agriculture and military industry. Our products conform to the standards of
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