Constantan CuNi40 Strip Copper Nickel Alloy Wire Use For Strain Gauge
Constantan(CuNi40)Strip Size 0.01mm * 100mm Used For Strain Gauge
Chemical Content, %
|
Ni |
Mn |
Fe |
Si |
Cu |
Other |
ROHS Directive |
|||
|
Cd |
Pb |
Hg |
Cr |
||||||
|
40 |
1.50% |
- |
- |
Bal |
- |
ND |
ND |
ND |
ND |
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.
Mechanical Properties
|
Max Continuous Service Temp |
400℃ |
|
Resisivity at 20℃ |
0.48±3%ohm mm2/m |
|
Density |
8.9 g/cm3 |
|
Thermal Conductivity |
-6(Max) |
|
Melting Point |
1280℃ |
|
Tensile Strength,N/mm2 Annealed,Soft |
340~535 Mpa |
|
Tensile Strength,N/mm3 Cold Rolled |
680~1070 Mpa |
|
Elongation(anneal) |
25%(Min) |
|
Elongation(cold rolled) |
≥Min)2%(Min) |
|
EMF vs Cu, μV/ºC (0~100ºC) |
-43 |
|
Micrographic Structure |
austenite |
|
Magnetic Property |
Non |
|
TCR |
-40~+40 |
Constantan Tradenames:
Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45,
Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan
CuNi Alloy
|
Charact eristic |
Resistivity ( 200C 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) |
|
Alloy Nomenc lature |
|||||||
|
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) |
0.5 |
400 |
420 |
1200 |
8.9 |
<-6 |
-43 |
Resistance Alloy- Constantan Sizes / Temper Capabilities
1; Condition: Bright, Annealed, Soft
2; Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm packing in coil
3; Rod, Bar diameter 1mm-30mm
4; Strip: Thickness 0.005mm-7mm, Width 1mm-280mm
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