Copper-nickel (CuNi) Alloys Wire

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Product Detail

Superb Heater Technology has been focused on the production of copper-nickel (cuni) alloys wire since 1985, which is well-known as one of the leading manufacturers and suppliers of copper-nickel (cuni) alloys wire. In the past years, we owned strong reputation for the high quality, reliable performance and strong durability of our products. Should you are interested, please feel free to contact our factory.

Electric resistance alloy

Copper-nickel (CuNi) alloys

CuNi alloy is a name of copper-nickel alloy with medium resistivity for medium-low temperature resistances. The alloy is suitable for use at temperatures up to 400°C. Resistance wire resists the flow of electricity. And it comes in various forms which include resistance tape, resistance ribbon or resistance strand. Ideal applications areas are all types of resistances used at low temperature.

Application:

electrical resistors, potentiometers, heating wires, heating cables and underground heating mesh; Braiding and shielding in flexible coaxial cable and communication cable, a variety of audio and video cable ,vehicle signal cable, network cable ,data transmission cables and so on.

Cu-Ni Low Resistance Alloy

Properties\ Grade		CuNi1	CuNi2	CuNi6	CuNi8	CuMn3	CuNi10	CuNi14	CuNi19	CuNi23	CuNi30	CuNi34	CuNi44
Main Chemical Composition%	Ni	1	2	6	8	_	10	14	19	23	30	34	44
	Mn	_	_	_	_	3		0.3	0.5	0.5	1.0	1.0	1.0
	Cu	Rest	Rest	Rest	Rest	Rest		Rest	Rest	Rest	Rest	Rest	Rest
Max Work Temp(?)		200	200	200	250	200	250	300	300	300	350	350	400
Resisivity 20?(Omm2/m)		0.03	0.05	0.10	0.12	0.12	0.15	0.20	0.25	0.30	0.35	0.40	0.49
Density(g/cm3)		8.9	8.9	8.9	8.9	8.8	8.9	8.9	8.9	8.9	8.9	8.9	8.9
Thermal Conductivity (a×10-6/?)		<100	<120	<60	<57	<38	<50	<30	<25	<16	<10	<0	<-6
Tensile Strength (Mpa)		=210	=220	=250	=270	=290	=290	=310	=340	=350	=400	=400	=420
EMF vs Cu (µV/oC)(0~100oC)		-8	-12	-12	-22	_	-25	-28	-32	-34	-37	-39	-43
Melting Point (?)		1085	1090	1095	1097	1050	1100	1115	1135	1150	1170	1180	1280
Micrographic Structure		austenite	austenite	austenite	austenite	austenite	austenite	austenite	austenite	austenite	austenite	austenite	austenite
Magnetic Property		non	non	non	non	non	non	non	non	non	non	non	non

Technical parameters of Cu-Ni resistance heating wire

Dia.	Sectional	Surface per meter	Weight per meter	Length per kg.	CuNi6	CuNi10	CuNi23	CuNi44
	Area		(kg/m)	(m/kg)	(NC010)	(NC015)	(NC030)	(NC050)
	(mm²)				Resistance per meter	Resistance per meter	Resistance per meter	Resistance per meter
					(O/m)	(O/m)	(O/m)	(O/m)
0.1	0.00785	3.14	0.000069865	14313.32	12.739	19.108	38.217	62.42
0.12	0.011304	3.77	0.000100606	9939.8	8.846	13.27	26.539	43.347
0.15	0.0176625	4.71	0.000157196	6361.47	5.662	8.493	16.985	27.742
0.17	0.0226865	5.34	0.00020191	4952.71	4.408	6.612	13.224	21.599
0.19	0.0283385	5.97	0.000252213	3964.91	3.529	5.293	10.586	17.291
0.21	0.0346185	6.6	0.000308105	3245.65	2.889	4.333	8.666	14.154
0.25	0.0490625	7.85	0.000436656	2290.13	2.038	3.057	6.115	9.987
0.27	0.0572265	8.48	0.000509316	1963.42	1.747	2.621	5.242	8.562
0.29	0.0660185	9.11	0.000587565	1701.94	1.515	2.272	4.544	7.422
0.31	0.0754385	9.74	0.000671403	1489.42	1.326	1.988	3.977	6.495
0.35	0.0961625	11	0.000855846	1168.43	1.04	1.56	3.12	5.096
0.4	0.1256	12.57	0.00111784	894.58	0.796	1.194	2.389	3.901
0.45	0.1589625	14.14	0.001414766	706.83	0.629	0.944	1.887	3.082
0.5	0.19625	15.71	0.001746625	572.53	0.51	0.764	1.529	2.497
0.6	0.2826	18.85	0.00251514	397.59	0.354	0.531	1.062	1.734
0.7	0.38465	22	0.003423385	292.11	0.26	0.39	0.78	1.274
0.8	0.5024	25.1	0.00447136	223.65	0.199	0.299	0.597	0.975
0.9	0.63585	28.3	0.005659065	176.71	0.157	0.236	0.472	0.771
1	0.785	31.4	0.0069865	143.13	0.127	0.191	0.382	0.624
1.2	1.1304	37.7	0.01006056	99.4	0.088	0.133	0.265	0.433
1.4	1.5386	44	0.01369354	73.03	0.065	0.097	0.195	0.318
1.6	2.0096	50.3	0.01788544	55.91	0.05	0.075	0.149	0.244
1.8	2.5434	56.5	0.02263626	44.18	0.039	0.059	0.118	0.193
2	3.14	62.8	0.027946	35.78	0.032	0.048	0.096	0.156
2.2	3.7994	69.1	0.03381466	29.57	0.026	0.039	0.079	0.129
2.5	4.90625	78.5	0.043665625	22.9	0.02	0.031	0.061	0.1
2.8	6.1544	88	0.05477416	18.26	0.016	0.024	0.049	0.08
3	7.065	94.2	0.0628785	15.9	0.014	0.021	0.042	0.069
3.5	9.61625	110	0.085584625	11.68	0.01	0.016	0.031	0.051
4	12.56	125.7	0.111784	8.95	0.008	0.012	0.024	0.039
4.5	15.89625	141.4	0.141476625	7.07	0.006	0.009	0.019	0.031
5	19.625	157.1	0.1746625	5.73	0.005	0.008	0.015	0.025
5.5	23.74625	172.8	0.211341625	4.73	0.004	0.006	0.013	0.021
6	28.26	188.5	0.251514	3.98	0.004	0.005	0.011	0.017
6.5	33.16625	204	0.295179625	3.39	0.003	0.005	0.009	0.015
7	38.465	220	0.3423385	2.92	0.003	0.004	0.008	0.013

Customary table for wire gauge

	SWG		BWG		AWG
	in	mm	in	mm	in	mm
6	0.192	4.877	0.203	5.16	O.1620	4.11
7	O.176	4.47	O.180	4.57	0.1443	3.67
8	O.160	4.064	O.165	4.19	0.1285	3.26
9	0.144	3.658	0.148	3.76	0.1144	2.91
10	O.128	3.251	O.134	3.4	0.1019	2.59
ll	O.116	2.946	O.120	3.05	0.09074	2.3
12	O.104	2.642	O.109	2.77	0.08081	2.05
13	0.092	2.337	0.095	2.41	0.07196	l-83
14	0.08	2.032	0.083	2.11	0.06408	1.63
15	0.072	1.829	0.072	1.83	0.05707	1.45
16	0.064	1.626	0.065	1.65	0.05082	1.29
17	0.056	1.422	0.058	1.47	0.04526	1.15
18	0.048	1.219	0.049	1.24	0.0403	1.02
19	0.04	1.016	0.042	1.07	0.03589	0.9l
20	0.036	0.914	0.035	0.89	0.03196	0.812
2l	O.032	0.813	0.032	O.8l	0.02846	0.723
22	0.028	0.711	0.028	0.71	0.02535	0.644
23	0.024	0.61	0.025	O.64	0.02257	O.573
24	0.022	O.559	O.022	0.56	0.0201	0.511
25	0.02	O.508	0.02	0.5l	O.01790	0.455
26	O.018	0.457	0.018	0.46	0.01594	0.405
27	0.0164	0.4166	0.016	0.41	0.0142	O.361
28	0.0148	O.3759	0.014	0.36	0.01264	O.321
29	0.0136	0.3454	0.013	0.33	0.01126	O.286
30	0.0124	0.315	0.012	0.3	0.01003	0.255
31	0.0116	0.2946	0.01	0.25	0.008928	0.227
32	0.0108	0.2743	0.009	0.23	0.00795	0.202
33	0.01	0.254	0.008	O.20	0.00708	0.18
34	0.0092	O.2337	0.007	O.18	O.006304	0.16
35	0.0084	O.2134	0.005	0.13	0.005615	O.143
36	0.0076	O.1930	O.004	0.1	0.005	0.127