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CuNi40 constantan with good heat-resistant used in electric heating element
Copper-based heating resistance alloy wire has lower electrical resistance, good echanical ,excellent welding and anti-corrosion properties. It’s used to make the key components in the thermal overloaded relay, low resistance thermal circuit breaker, and the electrical appliances. It is also an important material for electrical heating cable.
Specification
|
Type
|
Electrical resistivity
(20degree Ω mm²/m) |
temperature coefficient of resistance
(10^6/degree) |
Density
g/cm3 |
Max. temperature
(°c) |
Melting point
(°c) |
|
CuNi1
|
0.03
|
<1000
|
8.9
|
200
|
1085
|
|
CuNi2
|
0.05
|
<1200
|
8.9
|
200
|
1090
|
|
CuNi6
|
0.10
|
<600
|
8.9
|
220
|
1095
|
|
CuNi8
|
0.12
|
<570
|
8.9
|
250
|
1097
|
|
CuNi10
|
0.15
|
<500
|
8.9
|
250
|
1100
|
|
CuNi14
|
0.20
|
<380
|
8.9
|
300
|
1115
|
|
CuNi19
|
0.25
|
<250
|
8.9
|
300
|
1135
|
|
CuNi23
|
0.30
|
<160
|
8.9
|
300
|
1150
|
|
CuNi30
|
0.35
|
<100
|
8.9
|
350
|
1170
|
|
CuNi34
|
0.40
|
-0
|
8.9
|
350
|
1180
|
|
CuNi40
|
0.48
|
±40
|
8.9
|
400
|
1200
|
|
CuNi44
|
0.50
|
<-6
|
8.9
|
400
|
1200
|
|
0,071
|
0,085
|
0,091
|
4,318
|
17
|
700
|
|
0,080
|
0,095
|
0,101
|
3,401
|
17
|
850
|
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