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Copper nickel alloy CuNi44 constantan heating tape / strip / foil
CuNi resistance alloy
World class standard
Stable and uniform properties
Solid bare copper conduct
As a big manufacturer and exporter in China on the line of electric resistance alloy, we can supply all kinds of electric resistancealloy wire and strips (resistance steel wire and strips weiding wire)
copper nickel alloy includes : Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23CuNi30, CuNi34, CuNi44.
1. constantan
Product Details:
Grade: 6J40 also known as cuni40
Nature: With 40% nickel, 1.5% copper manganese alloy
Constantan is a type of resistance alloy, which is made up of copper and nickel as the main components.
It has a low temperature coefficient of resistance (TCR), and a wide operating temperature range (below 500°C). It has good properities on mechanical working, high resistance of corrosion. It is used for variable and strain resistance of corrosion. It is used for variable and strain resisitance elements in alternative instruments.
Our products have the following features: Stable performance, high resistivity, high working temperature, allowable high surface load, small specific gravity and reasonable price.
2. constantan 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
3. Chemical composition and main properties of constantan
Name | Code | Main Composition (%) | Density (g/mm2) | |||
Cu | Mn | Ni | Cr | |||
Constantan | 6J40 | Bal. | 1-2 | 39-41 | - | 8.9 |
Type | (20º C ) Resistivity (μ Ω. M) | (20º C ) Temp. Coff. of Resistance (α×10-6/°C) | (0-100º C ) Thermal EMF vs. Copper (μV/º C ) | Max. Working Temp.(º C )
| Elongation (%) | Tensile Strength (Mpa) | |
Constantan | 6J40 | 0.48 ±0.03 | +40 | 45 | ≤500 | ≥15 | ≥390 |
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 |
4. 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