CuNi44 Resistance heating wire and resistance wire
(Common Name:CuNi44,NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)
CuNi44 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 CuNi44 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.
CuNi44 is manufactured from electrolytic copper and pure nickel. In finer wire sizes the alloy is designated as CuNi44TC(Thermocouple).
Typical Mechanical properties（1.0mm）
|Yield strength||Tensile Strength||Elongation|
Typical Physical properties
|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||Thermal Expansion x10-6/K|
|20 ℃- 400℃||15|
|Specific heat capacity|
|Melting point (℃)||1280|
|Max continuous operating temperature in air (℃)||400|
Corrosion resistance performance
|Alloys||Working In atmosphere at 20℃||Working at max temperature 200℃|
|Air and oxygen contain gases||gases with Nitrogen||gases with sulfur oxidability||gases with sulfur reductibility||carburization|
Style of supply
#1 SIZE RANGE
Large size range from 0.025mm (.001”) to 21mm (0.827”)
Order Quantity ranging from 1 kg to 10 tonnes
At Cheng Yuan Alloy, we take great pride in customer satisfaction and frequently discuss individual requirements, offering a tailored solution through manufacturing flexibility and technical knowledge.
Delivery within 3 weeks
We typically manufacture your order and ship within 3 weeks, delivering our products to more than 55 countries across the world.
Our lead times are short because we stock in excess of 200 tonnes of more than 60 ‘High Performance’ alloys and, if your finished product is not available from stock, we can manufacture within 3 weeks to your specification.
We take pride in our more than 95% on time delivery performance, as we are always striving for excellent customer satisfaction.
All wire, bars, strip, sheet or wire mesh are securely packed suitable for transporting by road, air courier or sea, with available in coils, spools and cut lengths. All items are clearly labelled with the order number, alloy, dimensions, weight, cast number and date.
There is also the option to supply neutral packaging or labelling featuring the customer’s branding and company logo.
#4 BESPOKE MANUFACTURING
Order is manufactured to your specification
We produce wire, bar, flat wire, strip, sheet to your exact specification and in exactly the quantity you are looking for.
With a range of 50 Exotic Alloys available, we can provide the ideal alloy wire with specialist properties best suited to your chosen application.
Our alloy products, such as the corrosion resistant Inconel® 625 Alloy, is designed for aqueous and off-shore environments, while the Inconel® 718 alloy offers superior mechanical properties in low and sub-zero temperature environments. We also have high strength, hot cutting wire ideal for high temperatures and perfect for cutting polystyrene (EPS) and heat sealing (PP) food bags.
Our knowledge of the industry sectors and state-of-the-art machinery means we can reliably manufacture alloys to strict design specifications and requirements from all over the world.
#5 EMERGENCY MANUFACTURING SERVICE
Our ‘Emergency Manufacturing Service’ for delivery within days
Our usual delivery times are 3 weeks, however if an urgent order is required, our Emergency Manufacturing Service ensures your order is manufactured within days and shipped to your door via the fastest route possible.
If you have an emergency situation and require products even faster, contact us with your order specification. Our technical and production teams will swiftly respond to your quote.