Copper Nickel 70/30 Pipes
ASC LLP is a leading Copper Nickel 70/30 pipes manufacturer and supplier, providing high-quality piping solutions for various industrial applications. Our Copper Nickel 70/30 pipes are renowned for their exceptional properties and numerous advantages, making them the preferred choice for industries requiring reliable and durable materials.
What are Copper Nickel 70/30 Pipes?
Copper Nickel 70/30, also known as CuNi 70/30, is an alloy composed of 70% copper and 30% nickel, with minor additions of iron and manganese for enhanced strength and corrosion resistance. This alloy is particularly known for its excellent resistance to seawater corrosion and biofouling, making it ideal for marine and offshore applications.

Properties of Copper Nickel 70/30 Pipes
- Corrosion Resistance: One of the most significant advantages of Copper Nickel pipes is their exceptional resistance to corrosion, particularly in seawater environments. The alloy forms a protective oxide layer that prevents corrosion, making it ideal for marine applications.
- High Strength and Durability: The addition of nickel to the alloy enhances its strength and durability, making Copper Nickel 70/30 pipes suitable for high-pressure and high-temperature applications.
- Thermal Conductivity: Copper Nickel 70/30 offers excellent thermal conductivity, which is beneficial in heat exchanger and condenser applications.
- Fabricability: Copper Nickel pipes 70/30 are easily fabricated and welded, allowing for versatile manufacturing and installation options.
- Biofouling Resistance: The alloy is resistant to biofouling, which is the accumulation of marine organisms on surfaces. This property reduces maintenance costs and prolongs the lifespan of marine equipment.
Advantages of Copper Nickel 70/30 Pipes
- Long Lifespan: The superior corrosion resistance and durability of Copper Nickel 70/30 pipes ensure a long operational lifespan, reducing the need for frequent replacements.
- Cost-Effective: Although the initial cost of Copper Nickel pipes may be higher than some alternatives, their longevity and low maintenance requirements make them a cost-effective choice in the long run.
- Versatile Applications: The exceptional properties of Copper Nickel 70/30 make it suitable for a wide range of applications, including shipbuilding, offshore oil and gas, power generation, desalination plants, and chemical processing.
- Environmental Benefits: Copper Nickel pipes are environmentally friendly, as they are fully recyclable and have a low ecological impact compared to other materials.


Schedule and Size Chart
Pipe Size (inches) | Outer Diameter (mm) | Wall Thickness (mm) | Schedule |
1/2″ | 21.3 | 2.77 | 40 |
3/4″ | 26.7 | 2.87 | 40 |
1″ | 33.4 | 3.38 | 40 |
1 1/4″ | 42.2 | 3.56 | 40 |
1 1/2″ | 48.3 | 3.68 | 40 |
2″ | 60.3 | 3.91 | 40 |
2 1/2″ | 73.0 | 5.16 | 40 |
3″ | 88.9 | 5.49 | 40 |
4″ | 114.3 | 6.02 | 40 |
Mechanical Properties Chart
Property | Value |
Tensile Strength (MPa) | 345 – 485 |
Yield Strength (MPa) | 125 – 220 |
Elongation (%) | 30 – 40 |
Hardness (HB) | 70 – 110 |
Specifications Chart
Standard | Specification |
ASTM | B466 |
ASME | SB466 |
DIN | 86019 |
EN | 12451 |
BS | 2871 Part 3 |
JIS | H3300 |
Tensile Strength Chart
Condition | Tensile Strength (MPa) |
Annealed | 345 – 485 |
Cold Worked | 450 – 600 |
Stress Relieved | 310 – 450 |
Heat Treatment Requirement Chart
Heat Treatment Process | Temperature (°C) | Duration |
Annealing | 700 – 750 | 1 – 2 hours |
Stress Relieving | 300 – 350 | 1 – 3 hours |
Solution Treatment | 850 – 900 | 15 – 30 minutes |
Chemical Composition Chart
Element | Composition (%) |
Copper (Cu) | 68.0 – 71.0 |
Nickel (Ni) | 29.0 – 32.0 |
Iron (Fe) | 0.4 – 1.0 |
Manganese (Mn) | 0.5 – 1.0 |
Others (incl. Zn, Pb) | 0.4 max |
Physical Properties Chart
Property | Value |
Density | 8.94 g/cm³ |
Melting Point | 1170 – 1240°C |
Thermal Conductivity | 29 W/m·K |
Electrical Conductivity | 5 – 6% IACS |
Modulus of Elasticity | 144 GPa |
Application Chart
Industry | Applications |
Marine | Seawater cooling systems, desalination plants, shipbuilding |
Offshore Oil and Gas | Platforms, piping systems, heat exchangers |
Power Generation | Condensers, heat exchangers |
Chemical Processing | Piping systems in corrosive environments |
Desalination | Water treatment plants |
Why Choose ASC LLP?
At ASC LLP, we are committed to providing our clients with the highest quality Cu-Ni 70/30 pipes. Here’s why you should choose us as your Copper Nickel 70/30 pipes suppliers:
- Expertise and Experience: With decades of experience in the industry, we possess the expertise and knowledge to meet your specific requirements.
- Quality Assurance: Our Cu-Ni 70/30 pipes undergo rigorous quality checks to ensure they meet international standards and customer expectations.
- Customization: We offer customized solutions to cater to the unique needs of different industries, ensuring you get the perfect product for your application.
- Timely Delivery: We understand the importance of timely delivery and strive to meet deadlines without compromising on quality.
- Customer Support: Our dedicated customer support team is always ready to assist you with any queries or concerns you may have.
Cu-Ni 70/30 pipes are the ideal choice for a variety of applications, thanks to their exceptional properties and advantages. As a leading Copper Nickel 70/30 pipes manufacturer and supplier, ASC LLP is dedicated to providing top-quality products and services to our clients. Whether you need pipes for marine, offshore, power generation, or chemical processing applications, our Cu Ni 70/30 pipes will meet and exceed your expectations.
Contact us today to learn more about our products and how we can assist you with your specific requirements. Choose ASC LLP for reliable and high-performance Copper Nickel pipes.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Copper Nickel 70/30 Pipes. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.