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CuNi34 Copper-based low resistance heating alloy wire

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Copper-based low resistance heating alloy wire
Copper-based heating resistance alloy wire has lower electrical resistance, good mechanical, excellent welding and anti-corrosion properties. It is used to make the key components in the thermal overload relay, low resistance thermal circuit breaker, and the electrical appliances. It is also an important material for electrical heating cable.

Copper nickel alloy series: CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23,CuNi30, CuNi34, CuNi44. Also named NC003, NC005, NC010, NC012, NC015, NC020, NC025, NC030, NC035, NC040, NC050.
Properties
TYPE
CuNi1 NC003
CuNi2 NC005
CuNi4NC007
CuNi6 NC010
CuNi8 NC012
CuNi10 NC015
CuNi14 NC020
CuNi44 NC050
composition
Cu
Rest
Rest
Rest
Rest
Rest
Rest
Rest
Rest
Mn
-
-
-
-
-



Ni
1
2
4
6
8
10
14.2
44
M a x . c o n t i n u o u s operating temperature℃
200
200
200
220
250
250
300
400
Nominal value μO m(20℃ )
0.03 ±10%
0.05 ±10%
0.07
±10%
0.10 ±10%
0.12 ±10%
0.15 ±10%
0.20 ±10%
0.49 ±10%
Resistancetemperature coefficient×10-5/℃ (20-600℃)
< 100
< 120
< 50
< 60
< 57
< 50
< 38
< -6
Thermovoltage to copper at 20℃ in μV/K
-8
-12
-12
-18
-22
-25
-28
-43
M e a n c o e f f i c i e n t o f l i n e a r t h e r m a l expansion, in 10-6/K, at a temperature between 20 ℃ and 400 ℃
17.5
17.5
17.5
17.5
17.5
17.5
17.5
15.0
Thermal conductance at 20℃ W/mK
145
130
130
92
75
59
48
23
S p e c i f i c h e a t capacity at 20 ℃ in 20℃ J/gK
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.41
Density at 20 ℃ (g/cm3)
8.9
8.9
8.9
8.9
8.9
8.9
8.9
8.9
Melting temperature in ℃
1085
1090
1090
1095
1097
110
1115
1280
M i n . t e n s i l e strength in N/mm2
210
220
220
250
270
290
310
420
Elongation
25
25
25
25
25
25
25
25


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