
Product Description
CuNi2 alloy wire: low resistance heating alloy is widely used in
low-voltage circuit breaker, thermal overload relay, and other
low-voltage electrical product. It is one of the key materials of
the low-voltage electrical products. The materials produced by our
company have the characteristics of good resistance consistency and
superior stability. We can supply all kinds of round wire, flat and
sheet materials.ng cable.
Chemical Content, %
Ni | Mn | Fe | Si | Cu | Other | ROHS Directive | |||
Cd | Pb | Hg | Cr | ||||||
2 | - | - | - | Bal | - | ND | ND | ND | ND |
Mechanical Properties
Max Continuous Service Temp | 200℃ |
Resisivity at 20℃ | 0.05±10%ohm mm2/m |
Density | 8.9 g/cm3 |
Thermal Conductivity | 100(max) |
Melting Point | 1280℃ |
Tensile Strength,N/mm2 Annealed,Soft | 140~310 Mpa |
Tensile Strength,N/mm2 Cold Rolled | 280~620 Mpa |
Elongation(anneal) | 25%(min) |
Elongation(cold rolled) | 2%(min) |
EMF vs Cu, μV/ºC (0~100ºC) | -8 |
Micrographic Structure | austenite |
Magnetic Property | Non |
CuNi2 Tradenames:
Alloy 30, CuNi2, 30 Alloy, HAl-30 Alloy 230, Cuprothal 30
Resistance Alloy 30-CuNi2 Size/Temper Capabilities
1, Condition: Bright, Annealed, Soft
2, Wire/Ribbon diameter 0.02mm-1.0mm packing in spool, big than
1.50mm packing in coil
3, Rod, Bar diameter 1mm-30mm
4, Strip: Thickness 0.01mm-7mm, Width 1mm-280mm
5, Enameled condition is available
Resistance Alloy Series
CuNi alloy wireis typically used in heating cables, fuses,
resistors and various types of controllers.
As a big manufacturer and exporter in China on the line of electric
resistance alloy, we can supply all kinds of electric resistance
alloy wire and strips (resistance steel wire and strips weiding
wire)
Chemical composition and main properties
Chemical Composition and Main Property of Cu-Ni Low Resistance Alloy | ||||||||
PropertiesGrade | CuNi1 | CuNi2 | CuNi6 | CuNi8 | CuMn3 | CuNi10 | ||
Main Chemical Composition | Ni | 1 | 2 | 6 | 8 | _ | 10 | |
Mn | _ | _ | _ | _ | 3 | _ | ||
Cu | Bal | Bal | Bal | Bal | Bal | Bal | ||
Max Continuous Service Temperature(º C) | 200 | 200 | 200 | 250 | 200 | 250 | ||
Resisivity at 2º C (Ω mm2/m) | 0.03 | 0.05 | 0.1 | 0.12 | 0.12 | 0.15 | ||
Density(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.8 | 8.9 | ||
Thermal Conductivity(α × 10-6º C) | < 100 | < 120 | < 60 | < 57 | < 38 | < 50 | ||
Tensile Strength(Mpa) | ≥ 210 | ≥ 220 | ≥ 250 | ≥ 270 | ≥ 290 | ≥ 290 | ||
EMF vs Cu(μ Vº C)(0~10º C) | -8 | -12 | -12 | -22 | _ | -25 | ||
Approximate Melting Point(º C) | 1085 | 1090 | 1095 | 1097 | 1050 | 1100 | ||
Micrographic Structure | austenite | austenite | austenite | austenite | austenite | austenite | ||
Magnetic Property | non | non | non | non | non | non | ||
PropertiesGrade | CuNi14 | CuNi19 | CuNi23 | CuNi30 | CuNi34 | CuNi44 | ||
Main Chemical Composition | Ni | 14 | 19 | 23 | 30 | 34 | 44 | |
Mn | 0.3 | 0.5 | 0.5 | 1 | 1 | 1 | ||
Cu | Bal | Bal | Bal | Bal | Bal | Bal | ||
Max Continuous Service Temperatureº C) | 300 | 300 | 300 | 350 | 350 | 400 | ||
Resisivity at 2º C (Ω mm2/m) | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | 0.49 | ||
Density(g/cm3) | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | ||
Thermal Conductivity(α × 10-6º C) | < 30 | < 25 | < 16 | < 10 | < 0 | < -6 | ||
Tensile Strength(Mpa) | ≥ 310 | ≥ 340 | ≥ 350 | ≥ 400 | ≥ 400 | ≥ 420 | ||
EMF vs Cu(μ Vº C)(0~10º C) | -28 | -32 | -34 | -37 | -39 | -43 | ||
Approximate Melting Point(º C) | 1115 | 1135 | 1150 | 1170 | 1180 | 1280 | ||
Micrographic Structure | austenite | austenite | austenite | austenite | austenite | austenite | ||
Magnetic Property | non | non | non | non | non | non |
Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribbon wire, sheet, tape, strip, rod and plate.
We’ve already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system.
We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.
Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over forty years in this field. During forty years, hundreds of management elites and high science and technology talents were employed.They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market.
Based on the principle of “first quality, sincere service”, our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.
Our products, such us nichrome wire, nichrome strip, fecral wire, fecral strip, thermocouple wire, nickel wire, nickel strip have been exported to Europe, USA, India, Southest Asia, South America,etc.
We are willing to establish strong and long-time partnership with our customers