Constantan Wire

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Advance Wire

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Nickel Chrome Alloys

exporter. We specilize in resistance heating wires and ribbons.
constantan wire Cuprothal 294,180,90,60,30
 Danyang Resistance Wire Factory
Constantan wire and ribbon, Copper-Nickel alloy wires and strips, Low resistance wires

Copper-Nickel wire

CuNi2 fine wires Copper-based low resistance heating alloy series possess the features of low resistance temperature coefficient, wide area of working temperature , good welding function etc. It is widely used in the area to make heating cable, adjustable resistor and strain resistor etc. The most common alloys are CuNi2, CuNi6, CuNi10, CuNi23, CuNi30, CuNi44, 6J40, 6J11, 6J12, 6J8, 6J13, Monel 400, Monel 500 etc.

Main Characteristics Of Copper-based Low Resistance Heating Wire
Nomenclature
Performance
NC003
CuNi1
NC005
CuNi2
NC010
CuNi6
NC012
CuNi8
MC012
CuMn3
NC015
CuNi10
NC020
CuNi14
NC025
CuNi19
NC030
CuNi23
NC035
CuNi30
NC040
CuNi34
NC050
CuNi44
Main Chemical Composition
(%)
Ni 1 2 6 8 - 10 14.2 19 23 30 34 44
Mn - - - - 3 - 0.3 0.5 0.5 1 1 1
Cu Bal. Bal. Bal. Bal. Bal. Bal. Bal. Bal. Bal. Bal. Bal. Bal.
Max continuous service temp of element(℃)  - 200 220 250 200 250 300 300 300 350 350 400
Melting point
(approx℃)
1085 1090 1095 1097 1050 1100 1115 1135 1150 1170 1180 1280
Density
(g/cm3)
8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9
Resistivity at 20℃(μΩ.m)  0.03±10% 0.05±10% 0.1±10% 0.12±10% 0.12±10% 0.15±10% 0.2±5% 0.25±5% 0.3±5% 0.35±5% 0.4±5% 0.50±5%
Tensile strength
( Mpa)
≥210 ≥220 ≥250 ≥270 ≥290 ≥290 ≥310 ≥340 ≥350 ≥400 ≥400 ≥420
Elongation rate
(%,>Φ1.0)
≥25 ≥25 ≥25 ≥25 ≥25 ≥25 ≥25 ≥25 ≥25 ≥25 ≥25 ≥25
TCR 10-5/℃
(20-600℃)
<100 <120 <60 <57 <38 <50 <38 <25 <16 <10 0 <-6

Main characteristics of precision resistance alloy wires
Nomenclature
Performance
6J40
Constantan
6J11
New Constantan
6J12
Manganin
6J8
F1 Manganin
6J13
F2 Manganin
Main
Chemical
Composition
(%)
Mn 1~2 10.5~12.5 11~13 8~10 11~13
Ni 39~41 - 2~3 - 2~5
Cu Bal. Bal. Bal. Bal. Bal.
other    Al:2.5~4.5
Fe:1.0~1.6
  Si:1~2  
Continuous service temperature
of element (℃)
5~500 5~500 5~45 10~80 10~80
Density
(g/cm3)
8.88 8.0 8.44 8.7 8.4
Resistivity at 20℃
(μΩ.m)
0.48±0.03 0.49±0.03 0.47±0.03 0.35±0.05 0.44±0.04
Elongation rate
(%,Φ>0.5,L0=200mm)
≥15 ≥15 ≥15 ≥15 ≥15
TCR
(α×106C-1)
-40~+40 -80~+80 -3~+20 -5~+10 0~+40
μv /℃(0~100℃)
EMF vs Copper
45 2 1 2 2