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Astm B466 C70600 Copper-nickel Seamless Pipes For Seawater Cooling Systems
Posted at: Offers to Sell and Export | Posted on: Thursday 17 September 2026 1:18 am | Poster last visit: Thursday 17 September 2026 |
Product Category: Main
» Distribution and Conditioning Systems and Equipment and Components
» Pipe piping and pipe fittings
» Industrial pipe and piping
» Industrial copper pipe
» Astm B466 C70600 Copper-nickel Seamless Pipes For Seawater Cooling Systems
Product Description:
We supply C70600 copper-nickel seamless pipes conforming to ASTM B466 / B466M, also known as 90/10 copper-nickel
alloy seamless tubes. Based on copper with approximately 10% nickel and small additions of iron and manganese, this alloy offers excellent seawater corrosion resistance, resistance to flowing seawater erosion, good weldability, and excellent formability.
It is one of the most commonly used materials for seawater cooling systems, condensers, heat exchangers, and marine piping systems.
Compared with ordinary copper tubes, carbon steel pipes, and stainless steel pipes, C70600 copper-nickel alloy provides excellent overall service performance in flowing seawater, mildly polluted seawater, oxygenated seawater, and certain marine environments. In seawater service, the material surface gradually forms a stable protective film, effectively reducing the risk of uniform corrosion and improving long-term operational reliability.
Main Technical Specifications
Item:Specification
Standard:ASTM B466 / B466M
Material Grade:C70600 (90/10 Copper-Nickel Alloy)
UNS Number:UNS C70600
Equivalent Designations:CuNi10Fe1Mn, Copper-Nickel 90/10, DIN 2.0872, EN 12449
Outside Diameter (OD):1/8" to 12" (6 mm to 323.8 mm), or customized
Wall Thickness:SCH 10, SCH 40, SCH 80, Class 200, Class 700, or customized
Temper:Annealed (O60) / Light Drawn (H55) / Hard Drawn (H80)
Surface Finish:Smooth Mill Finish
Manufacturing Process:Cold Drawn, Cold Rolled, Hot Extruded (100% Seamless)
MOQ:1–3 tons
Applications:Marine, Seawater, Heat Exchangers, Cooling Systems
Advantages of Marine C70600 Copper-Nickel Pipes
1. Excellent Seawater Corrosion Resistance
C70600 copper-nickel seamless pipes are suitable for natural seawater, circulating seawater, brackish water, and certain industrial cooling-water environments. They provide good resistance to uniform seawater corrosion, crevice corrosion, and marine atmospheric corrosion, making them particularly suitable for piping and heat-exchange systems exposed to seawater over long periods.
2. Good Resistance to Erosion and Flowing Seawater
In seawater cooling systems, areas near elbows, valves, pump outlets, and locations with changing flow velocities can be susceptible to erosion. C70600 copper-nickel alloy offers good resistance to flowing seawater erosion and is suitable for piping sections subject to demanding flow velocity, sand content, and operating conditions.
3. Good Resistance to Marine Biofouling
Copper-nickel alloys provide a certain degree of resistance to marine biofouling in seawater environments. This helps reduce the adhesion of microorganisms, shellfish, and algae to tube walls, thereby lowering the risks of pipe blockage, reduced heat-transfer efficiency, and increased maintenance frequency.
4. Excellent Weldability and Fabrication Properties
C70600 copper-nickel seamless pipes feature good cold-working, bending, flaring, reducing, and welding properties. They can meet the requirements of on-site marine piping installation, prefabrication, flange connections, welded assembly, and matching with complex fittings.
5. Long Service Life and Lower Maintenance Costs
For seawater systems, the initial material purchase cost is not the only consideration. Selecting suitable copper-nickel alloy piping can help reduce total operating costs associated with corrosion perforation, leakage-related shutdowns, frequent replacements, and maintenance.
Main Marine Applications
Seawater cooling circuits: Engine cooling, central coolers, and auxiliary heat exchangers.
Marine and offshore piping: Bilge and ballast water lines, firefighting systems, and deck piping.
Seawater desalination plants: Brine heaters, evaporators, and intake manifolds.
Shipbuilding: Naval vessels, commercial cargo ships, luxury yachts, and FPSO units.
About Our Company
We are a reliable global manufacturer and exporter specializing in high-quality non-ferrous alloy solutions for marine, offshore, and industrial engineering applications. With advanced cold-drawing production lines, modern heat-treatment equipment, and comprehensive non-destructive testing facilities, we ensure full-process quality control from raw materials through final shipment.
Proven Track Record: Serving customers in more than 50 countries across Europe, the Middle East, Southeast Asia, and the Americas.
Stock and Customization: We maintain substantial stocks of standard sizes for fast delivery, while also offering flexible OEM capabilities for customized dimensions and stringent project specifications.
Industry Compliance: Certified to ISO 9001:2015 and ISO 14001, with products manufactured in compliance with major international standards including ASTM, DIN, EN, and BS.
Our professional engineering team is committed to providing reliable materials, competitive pricing, and technical support tailored to your project schedule.
Quality Control and Testing Standards
All our ASTM B466 C70600 seamless tubes undergo strict quality inspection before shipment:
100% Non-Destructive Testing: Eddy Current Testing (ECT) and/or hydrostatic testing.
Mechanical and Metallurgical Testing: Tensile testing, flattening testing, flaring testing, and grain-size analysis.
Chemical Analysis: Spectrometric verification for every production lot.
Available Certifications: EN 10204 3.1 Material Test Certificate (MTC), ISO 9001 documentation, and classification society certificates such as ABS, DNV, BV, and LR are available upon request.
Company Contact:
Contact Name: Hermione Miller
Company Name: Henan Hongchang Aluminum Co., Ltd.
Email:
Tel: 18703635966
Fax:
Street Address: No. 14,
Business outer Ring Road
Zhengzhou, Henan 450000
China
Other Contact Info:
Whatsapp: +8618703635966
Website: https://www.alummc.com/
Member name: hongchangalu
Country: China
Member Since: 01 March 2024
Total Leads: 83 hongchangalu Import Export Business Leads
Business focus: Aluminum Sheet, Aluminum Foil, Automobile Aluminum Sheet, Household Aluminum Foil, Packaging Aluminum Foil, Aluminum Pattern Plate
Verify: Safe Import Export Tips
alloy seamless tubes. Based on copper with approximately 10% nickel and small additions of iron and manganese, this alloy offers excellent seawater corrosion resistance, resistance to flowing seawater erosion, good weldability, and excellent formability.
It is one of the most commonly used materials for seawater cooling systems, condensers, heat exchangers, and marine piping systems.
Compared with ordinary copper tubes, carbon steel pipes, and stainless steel pipes, C70600 copper-nickel alloy provides excellent overall service performance in flowing seawater, mildly polluted seawater, oxygenated seawater, and certain marine environments. In seawater service, the material surface gradually forms a stable protective film, effectively reducing the risk of uniform corrosion and improving long-term operational reliability.
Main Technical Specifications
Item:Specification
Standard:ASTM B466 / B466M
Material Grade:C70600 (90/10 Copper-Nickel Alloy)
UNS Number:UNS C70600
Equivalent Designations:CuNi10Fe1Mn, Copper-Nickel 90/10, DIN 2.0872, EN 12449
Outside Diameter (OD):1/8" to 12" (6 mm to 323.8 mm), or customized
Wall Thickness:SCH 10, SCH 40, SCH 80, Class 200, Class 700, or customized
Temper:Annealed (O60) / Light Drawn (H55) / Hard Drawn (H80)
Surface Finish:Smooth Mill Finish
Manufacturing Process:Cold Drawn, Cold Rolled, Hot Extruded (100% Seamless)
MOQ:1–3 tons
Applications:Marine, Seawater, Heat Exchangers, Cooling Systems
Advantages of Marine C70600 Copper-Nickel Pipes
1. Excellent Seawater Corrosion Resistance
C70600 copper-nickel seamless pipes are suitable for natural seawater, circulating seawater, brackish water, and certain industrial cooling-water environments. They provide good resistance to uniform seawater corrosion, crevice corrosion, and marine atmospheric corrosion, making them particularly suitable for piping and heat-exchange systems exposed to seawater over long periods.
2. Good Resistance to Erosion and Flowing Seawater
In seawater cooling systems, areas near elbows, valves, pump outlets, and locations with changing flow velocities can be susceptible to erosion. C70600 copper-nickel alloy offers good resistance to flowing seawater erosion and is suitable for piping sections subject to demanding flow velocity, sand content, and operating conditions.
3. Good Resistance to Marine Biofouling
Copper-nickel alloys provide a certain degree of resistance to marine biofouling in seawater environments. This helps reduce the adhesion of microorganisms, shellfish, and algae to tube walls, thereby lowering the risks of pipe blockage, reduced heat-transfer efficiency, and increased maintenance frequency.
4. Excellent Weldability and Fabrication Properties
C70600 copper-nickel seamless pipes feature good cold-working, bending, flaring, reducing, and welding properties. They can meet the requirements of on-site marine piping installation, prefabrication, flange connections, welded assembly, and matching with complex fittings.
5. Long Service Life and Lower Maintenance Costs
For seawater systems, the initial material purchase cost is not the only consideration. Selecting suitable copper-nickel alloy piping can help reduce total operating costs associated with corrosion perforation, leakage-related shutdowns, frequent replacements, and maintenance.
Main Marine Applications
Seawater cooling circuits: Engine cooling, central coolers, and auxiliary heat exchangers.
Marine and offshore piping: Bilge and ballast water lines, firefighting systems, and deck piping.
Seawater desalination plants: Brine heaters, evaporators, and intake manifolds.
Shipbuilding: Naval vessels, commercial cargo ships, luxury yachts, and FPSO units.
About Our Company
We are a reliable global manufacturer and exporter specializing in high-quality non-ferrous alloy solutions for marine, offshore, and industrial engineering applications. With advanced cold-drawing production lines, modern heat-treatment equipment, and comprehensive non-destructive testing facilities, we ensure full-process quality control from raw materials through final shipment.
Proven Track Record: Serving customers in more than 50 countries across Europe, the Middle East, Southeast Asia, and the Americas.
Stock and Customization: We maintain substantial stocks of standard sizes for fast delivery, while also offering flexible OEM capabilities for customized dimensions and stringent project specifications.
Industry Compliance: Certified to ISO 9001:2015 and ISO 14001, with products manufactured in compliance with major international standards including ASTM, DIN, EN, and BS.
Our professional engineering team is committed to providing reliable materials, competitive pricing, and technical support tailored to your project schedule.
Quality Control and Testing Standards
All our ASTM B466 C70600 seamless tubes undergo strict quality inspection before shipment:
100% Non-Destructive Testing: Eddy Current Testing (ECT) and/or hydrostatic testing.
Mechanical and Metallurgical Testing: Tensile testing, flattening testing, flaring testing, and grain-size analysis.
Chemical Analysis: Spectrometric verification for every production lot.
Available Certifications: EN 10204 3.1 Material Test Certificate (MTC), ISO 9001 documentation, and classification society certificates such as ABS, DNV, BV, and LR are available upon request.
Company Contact:
Contact Name: Hermione Miller
Company Name: Henan Hongchang Aluminum Co., Ltd.
Email:
Tel: 18703635966
Fax:
Street Address: No. 14,
Business outer Ring Road
Zhengzhou, Henan 450000
China
Other Contact Info:
Whatsapp: +8618703635966
Website: https://www.alummc.com/
Member name: hongchangalu
Country:
ChinaMember Since: 01 March 2024
Total Leads: 83 hongchangalu Import Export Business Leads
Business focus: Aluminum Sheet, Aluminum Foil, Automobile Aluminum Sheet, Household Aluminum Foil, Packaging Aluminum Foil, Aluminum Pattern Plate
Verify: Safe Import Export Tips
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