Name: CuNi8 NC012 C71500 Marine Grade CuNi Alloy With Superior Corrosion Resistance
Brand: Senphus
Price: 1 USD

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CuNi8 NC012 C71500 Marine Grade CuNi Alloy With Superior Corrosion Resistance

Brand Name:Senphus

Certification:ISO9001

Model Number:CuNi8/NC012/C71500

Minimum Order Quantity:5kg

Delivery Time:3 days

Payment Terms:T/T, D/P

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Jiangyin Chengxin Alloy Material Co., Ltd ，

Verified Supplier

Location: Changzhou Jiangsu China

Address: Building 3, No. 29, Beitanghe East Road, Qinglong Street, Tianning District, Changzhou City, Jiangsu Province

Supplier`s last login times: within 26 hours

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Product Details

CuNi8 NC012 C71500 Marine-Grade CuNi Alloy with Superior Corrosion Resistance

CuNi8 NC012 C71500 Copper-Nickel Alloy Wire is a highly versatile and corrosion-resistant alloy that contains 8% nickel and 92% copper, making it ideal for marine, chemical, and electrical applications. It offers a balance of moderate strength, good electrical and thermal conductivity, and outstanding resistance to seawater corrosion. This alloy is commonly used in seawater piping, heat exchangers, marine hardware, electrical components, and chemical processing equipment. While it may not offer the same electrical conductivity as pure copper or the strength of higher-performance alloys, CuNi8 remains an excellent choice for marine, offshore, and corrosive environment applications where durability and resistance to biofouling are essential.

Main physical properties:

Max continuous operating temperature ℃	250
Resistance temperature coefficient x 10^-5/℃(20℃-600℃)	<57
Thermovoltage to copper at 20℃ in μV/K	-22
Thermal expansion coefficient ×10^-6/K(20℃-400℃)	17.5
Thermal conductance at 20℃ W/mK	75
Specific heat capacity at 20℃ J/gK	0.38

Some key features of CuNi-8 include:

Composition:

Copper (Cu): Approximately 92%, providing excellent thermal conductivity, electrical conductivity, and ductility.

Nickel (Ni): Approximately 8%, which enhances the alloy’s corrosion resistance, strength, and overall durability, particularly in marine and offshore environments.

Iron (Fe): A small amount of iron in the composition contributes to improved strength and resistance to corrosion in certain environments.

Corrosion Resistance:

Marine and Seawater Resistance: The 8% nickel content significantly improves the alloy's seawater corrosion resistance, making it ideal for marine applications, including seawater piping, heat exchangers, condensers, and offshore oil rigs.

General Corrosion Resistance: CuNi8 also performs well in mild acidic, alkaline, and chemical environments, providing durable resistance to a range of corrosive substances encountered in chemical processing and industrial applications.

Biofouling Resistance: The alloy’s resistance to biofouling (marine organism buildup) is beneficial for seawater-cooled systems, ensuring efficient operation without performance degradation from marine life accumulation.

Mechanical Properties:

Moderate to High Strength: With its nickel content, CuNi8 offers higher strength compared to pure copper, making it suitable for marine and industrial applications that require moderate mechanical strength.

Fatigue and Wear Resistance: CuNi8 has good resistance to fatigue and wear, allowing it to withstand thermal cycling and mechanical stress in demanding environments like heat exchangers and marine structures.

Workability: The alloy retains good ductility, allowing it to be cold-worked and hot-worked into wires, tubes, rods, and sheets, which is crucial for its fabrication into various industrial components.

Electrical and Thermal Conductivity:

Good Electrical Conductivity: While the alloy's electrical conductivity is lower than pure copper, it still offers sufficient conductivity for electrical wiring, connectors, and other components where some electrical conductivity is required.

Excellent Thermal Conductivity: CuNi8 maintains high thermal conductivity, which makes it a reliable material for heat exchangers, cooling systems, and other applications that require efficient heat transfer.

Weldability and Fabrication:

Weldability: CuNi8 can be welded using conventional methods such as TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding. Care should be taken to avoid overheating during the process to prevent oxidation or material degradation.

Formability: CuNi8 is easy to form into different shapes, such as wires, tubes, rods, and sheets, and can be processed through standard manufacturing techniques without compromising its mechanical or corrosion-resistant properties.

Applications:

Marine and Offshore Applications: CuNi8’s corrosion resistance to seawater and its biofouling resistance make it ideal for marine applications such as seawater piping, desalination plants, heat exchangers, marine hardware, and offshore oil rigs.
Electrical Components: It is used in electrical cables, wires, connectors, and other electrical components that require moderate electrical conductivity and corrosion resistance.
Heat Exchangers and Cooling Systems: CuNi8 is commonly used in heat exchangers, cooling systems, and condensers, where high thermal conductivity and corrosion resistance are essential.
Chemical Processing Equipment: The alloy is suitable for industrial piping and chemical processing equipment exposed to mild acidic or alkaline environments.

Technical data table

Type		CuNi1 NC003	CuNi2 NC005	CuNi4 NC007	CuNi6 NC010	CuNi8 NC012	CuMn3 NC012	CuNi10 NC015	CuNi14 NC020	CuNi19 NC025	CuNi23 NC030	CuNi30 NC035	CuNi34 NC040	CuNi44 NC050
Composition(%)	Cu	Rest	Rest	Rest	Rest	Rest	Rest	Rest	Rest	Rest	Rest	Rest	Rest	Rest
	Mn	/	/	/	/	/	3	/	0.3	0.5	0.5	1.0	1.0	1.0
	Ni	1	2	4	6	8		10	14.2	19	23	30	34	44
Max.continuous operating temperature(℃)		200	200·	200	220	250	200	250	300	300	300	350	350	400
Resistivity at 20℃(μ m)		0.03 ±10%	0.05 ±10%	0.07 ±10%	0.10 ±10%	0.12 ±10%	0.12 ±10%	0.15 ±10%	0.20 ±5%	0.25 ±5%	0.30 ±5%	0.35 ±5%	0.40 ±5%	0.49 ±5%
Resisitance-temperature coefficient 20-600℃ (×10-5/℃)		＜ 100	＜ 120	＜ 50	＜ 60	＜ 57	＜ 38	＜ 50	＜ 38	＜ 25	＜ 16	＜ 10	＜ -0	＜ -6
Thermovoltage to copper at 20℃ in (μV/K)		-8	-12	-12	-18	-22	1	-25	-28	-32	-34	-37	-39	-43
Mean coefficient of linear thermal expansion, in (10^-6/K) , at a temperature between 20 ℃ and 400 ℃		17.5	17.5	17.5	17.5	17.5	18	17.5	17.5	17.5	17.5	17.0	16.0	15.0
Thermal conductance at 20℃ (W/mK)		145	130	130	92	75	84	59	48	38	33	27	25	23
Specific heat capacity at 20℃ in (20℃ J/gK)		0.38	0.38	0.38	0.38	0.38	0.39	0.38	0.38	0.38	0.38	0.39	0.40	0.41
Density at 20 ℃(g/cm3)		8.9	8.9	8.9	8.9	8.9	8.8	8.9	8.9	8.9	8.9	8.9	8.9	8.9
Melting temperature in (℃)		1085	1090	1090	1095	1097	1050	1100	1115	1135	1150	1170	1180	1280
Min.tensile strength in (N/mm²⁾		210	220	220	250	270	290	290	310	340	350	400	400	420
Elongation(%)		25	25	25	25	25	25	25	25	25	25	25	25	25

Diameter(mm)	NC003 CuNi1	NC005 CuNi2	NC007 CuNi4	NC010 CuNi6	NC012 CuNi8	NC015 CuNi10	NC020 CuNi14	NC025 CuNi19	NC030 CuNi23	NC035 CuNi30	NC040 CuNi34	NC050 CuNi44
Diameter(mm)	NC003 CuNi1	NC005 CuNi2	NC007 CuNi4	NC010 CuNi6	NC012 CuNi8	NC015 CuNi10	NC020 CuNi14	NC025 CuNi19	NC030 CuNi23	NC035 CuNi30	NC040 CuNi34	NC050 CuNi44
0.10	3.82	6.36	8.91	12.73	15.28	19.09	25.46	31.83	38.19	44.56	50.93	62.39
0.11	3.16	5.26	7.37	10.52	12.63	15.78	21.04	26.30	31.56	36.82	42.09	51.56
0.12	2.65	4.42	6.19	8.84	10.61	13.26	17.68	22.10	26.52	30.94	35.37	43.33
0.13	2.26	3.76	5.27	7.53	9.04	11.30	15.07	18.83	22.60	26.36	30.14	36.92
0.14	1.95	3.24	4.55	6.49	7.80	9.74	12.99	16.24	19.48	22.73	25.98	31.83
0.15	1.70	2.82	3.96	5.65	6.79	8.48	11.31	14.14	16.97	19.80	22.64	27.73
0.16	1.49	2.48	3.48	4.97	5.97	7.46	9.95	12.43	14.92	17.40	19.89	24.37
0.17	1.32	2.20	3.08	4.40	5.29	6.60	8.81	11.01	13.21	15.41	17.62	21.59
0.18	1.18	1.96	2.75	3.92	4.72	5.89	7.86	9.82	11.78	13.75	15.72	19.26
0.19	1.06	1.76	2.47	3.52	4.23	5.29	7.05	8.81	10.58	12.34	14.11	17.28
0.20	0.95	1.59	2.23	3.18	3.82	4.77	6.36	7.95	9.54	11.14	12.73	15.60
0.21	0.87	1.44	2.02	2.88	3.46	4.33	5.77	7.21	8.66	10.10	11.55	14.15
0.22	0.79	1.31	1.84	2.63	3.16	3.94	5.26	6.57	7.89	9.20	10.52	12.89
0.23	0.72	1.20	1.68	2.40	2.89	3.61	4.81	6.01	7.22	8.42	9.63	11.79
0.24	0.66	1.10	1.55	2.21	2.65	3.31	4.42	5.52	6.63	7.73	8.84	10.83
0.25	0.61	1.01	1.43	2.03	2.44	3.05	4.07	5.09	6.11	7.13	8.15	9.98
0.26	0.57	0.94	1.32	1.88	2.26	2.82	3.77	4.70	5.65	6.59	7.53	9.23
0.27	0.52	0.87	1.22	1.74	2.10	2.61	3.49	4.36	5.23	6.11	6.99	8.56
0.28	0.49	0.81	1.14	1.62	1.95	2.43	3.25	4.06	4.87	5.68	6.50	7.96
0.29	0.45	0.75	1.06	1.51	1.82	2.27	3.03	3.78	4.54	5.29	6.06	7.42
0.30	0.42	0.70	0.99	1.41	1.70	2.12	2.83	3.53	4.24	4.95	5.66	6.93
0.31	0.40	0.66	0.93	1.32	1.59	1.98	2.65	3.31	3.97	4.63	5.30	6.49
0.32	0.37	0.62	0.87	1.24	1.49	1.86	2.49	3.11	3.73	4.35	4.97	6.09
0.33	0.35	0.58	0.82	1.17	1.40	1.75	2.34	2.92	3.51	4.09	4.68	5.73
0.34	0.33	0.55	0.77	1.10	1.32	1.65	2.20	2.75	3.30	3.85	4.41	5.40
0.35	0.31	0.51	0.73	1.03	1.25	1.55	2.08	2.60	3.11	3.63	4.16	5.09
0.36	0.29	0.49	0.69	0.98	1.18	1.47	1.96	2.46	2.94	3.43	3.93	4.81
0.37	0.28	0.46	0.65	0.93	1.12	1.39	1.86	2.33	2.79	3.25	3.72	4.56
0.38	0.26	0.44	0.62	0.88	1.06	1.32	1.76	2.20	2.64	3.08	3.53	4.32
0.40	0.24	0.39	0.56	0.79	0.95	1.19	1.59	1.99	2.38	2.78	3.18	3.90
0.41	0.23	0.37	0.53	0.76	0.91	1.13	1.51	1.89	2.27	2.65	3.03	3.71
0.42	0.22	0.36	0.51	0.72	0.87	1.08	1.44	1.80	2.16	2.52	2.89	3.54
0.43	0.21	0.34	0.48	0.69	0.83	1.03	1.38	1.72	2.06	2.41	2.75	3.37
0.44	0.20	0.32	0.46	0.66	0.79	0.98	1.31	1.64	1.97	2.30	2.63	3.22
0.45	0.19	0.31	0.44	0.63	0.75	0.94	1.26	1.57	1.88	2.20	2.52	3.08
0.46	0.18	0.30	0.42	0.60	0.72	0.90	1.20	1.50	1.80	2.10	2.41	2.95
0.47	0.17	0.28	0.40	0.58	0.69	0.86	1.15	1.44	1.72	2.01	2.31	2.82
0.48	0.17	0.27	0.39	0.55	0.66	0.82	1.10	1.38	1.65	1.93	2.21	2.71
0.49	0.16	0.26	0.37	0.53	0.64	0.79	1.06	1.33	1.59	1.85	2.12	2.60
0.50	0.15	0.25	0.36	0.51	0.61	0.76	1.01	1.27	1.52	1.78	2.04	2.50
0.51	0.15	0.24	0.34	0.49	0.59	0.73	0.98	1.22	1.46	1.71	1.96	2.40
0.52	0.14	0.23	0.33	0.47	0.57	0.70	0.94	1.18	1.41	1.65	1.88	2.31
0.53	0.14	0.22	0.32	0.45	0.54	0.67	0.91	1.13	1.35	1.59	1.81	2.22
0.54	0.13	0.22	0.31	0.44	0.52	0.65	0.87	1.09	1.30	1.53	1.75	2.14
0.55	0.13	0.21	0.29	0.42	0.51	0.63	0.84	1.05	1.26	1.47	1.68	2.06
0.56	0.12	0.20	0.28	0.41	0.49	0.60	0.81	1.02	1.21	1.42	1.62	1.99
0.57	0.12	0.19	0.27	0.39	0.47	0.58	0.78	0.98	1.17	1.37	1.57	1.92
0.58	0.11	0.19	0.27	0.38	0.45	0.56	0.76	0.95	1.13	1.32	1.51	1.85
0.59	0.11	0.18	0.26	0.37	0.44	0.54	0.73	0.91	1.09	1.28	1.46	1.79
0.60	0.11	0.18	0.25	0.35	0.42	0.53	0.71	0.88	1.06	1.24	1.41	1.73

Tolerance of ohm/m: ±5%
Round wire: range from 0.04mm (0.0016″) to 12mm (0.4724″)
Ribbon: range from 0.05mm (0.002″) to 6mm (0.2362″), Max ratio width : thickness = 10:1

Company Profile

Company Overview:

Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and preci.sion of our products. We have the tightest tolerances and deliver within a few days to a fewweeks. As a result, we have become the leading alloy wire supplier in the industry.

Senphus Subsidiaries:

Jiangyin Chengxin Alloy Material Co., Ltd.
Jiangyin Senphus Electrical Materials Co., Ltd.
Jiangsu Xiangcheng Supply Chain Management Co., Ltd.

Jiangyin Chengxin Alloy Material Co., Ltd.: With nearly 20 years of experience, Jiangyin Chengxin is a leading alloy wire manufacturer in China. We offer a wide range of services, from fine wire drawing to resistance wire manufacturing. Our specialty lies in the quality and precision of our products, achieving the tightest tolerances and delivering orders within days to weeks. As a result, we have established ourselves as the premier supplier of alloy wire in the industry.

Our product range includes:

Copper-nickel alloys (CuNi1-CuNi44)
Karma (Nikrothal L/Evanohm/Alloy 800)
Manganin and Constantan
Nickel-chromium alloys
Thermocouple alloys (Type K, N, E, T, J)
Thermocouple extension wire
PTC thermistor resistance alloy
Pure nickel wire and Monel alloy

These alloys are available in various forms, including wire, ribbon, stranded, and enamelled. Major applications include seat heating, underfloor heating, military projects, aerospace, household appliances, heating wire, mechanical and electrical plants, and temperature instruments. Our manufacturing processes are ISO 9001:2015 certified, and we specialize in fine and ultra-fine wire drawing, offering wire diameters from 0.025 mm (0.001") to 13 mm (0.51") in small batches, medium volumes, and mass production. We maintain a comprehensive quality inspection system, including in-house chemical analysis, chromatographic analysis, metallurgical analysis, pinhole tests, wire construction tests, and tension tests to ensure the highest quality standards.

Senphus Electrical Material Co., Ltd.: Founded in 2003, Senphus Electrical Material Co., Ltd. integrates research, manufacturing, and sales of electric heating alloys, heating cables, heating wires, and heating products. Leveraging over a decade of technical expertise in heating alloy wire, we have adopted advanced heating cable technology and machinery, successfully developing heating cables, temperature controllers, and temperature control systems suitable for building heating, pipe insulation, outdoor snow melting, wind power blade production, car seat heating, and healthcare applications.

The company is recognized as a high-tech enterprise in Jiangsu Province and a small giant enterprise in Jiangyin City, specializing in innovative technologies. We operate the "Wuxi Heating Cable Engineering Technology Research Center" and collaborate with experts from renowned domestic universities. Our portfolio includes 5 invention patents and over 30 utility model patents, showcasing our strong research and development capabilities.

With an annual output exceeding 1,000 tons of thermal alloy wire and an output value of approximately 105 million yuan, our products are well-received in markets such as the UK, Italy, Canada, Peru, and Spain. Our heating cables generate an annual output value of over 80 million yuan, with exports to Germany, Japan, the United States, Malaysia, Denmark, Brazil, and other countries.

The company has successfully passed multiple quality management system certifications, including IATF 16949, ISO 9001, ISO 14001 (Environmental Management System), and ISO 45001 (Occupational Health and Safety Management System). Our heating cables and related products have also obtained test reports from the Shanghai Cable Research Institute Test Center and received certifications such as UL (United States), VDE (Germany), CE (European Union), and RoHS.

Commitment to Quality: We adhere to the business commitment of "Reputation First, Quality First, Customer First" and uphold the quality policy of "Integrity-Based, Quality-Oriented, Excellent Service." We are dedicated to providing accurate products and professional services, and we look forward to collaborating sincerely with you to achieve mutual success.

CuNi8 NC012 C71500 Marine Grade CuNi Alloy With Superior Corrosion Resistance

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