Cupro Nickel is a premier copper-based alloy containing nickel and strengthening elements like iron and manganese. Renowned for its superior resistance to seawater corrosion and natural antimicrobial properties, it is the industry benchmark for marine piping, heat exchangers, and offshore cooling systems.
Cupro Nickel alloys are unique for their ability to resist the attachment of marine organisms (biofouling). While the 90/10 grade (C70600) offers excellent ductility and weldability, the 70/30 grade (C71500) provides higher strength and better resistance to high-velocity silt-laden seawater.
| Grade | Cu (Copper) | Ni (Nickel) | Fe (Iron) | Mn (Manganese) | Zn (Zinc) | Pb (Lead) | S (Sulfur) |
|---|---|---|---|---|---|---|---|
| Cupro Nickel 90/10 (C70600) | Remainder | 9.0 - 11.0 | 1.0 - 1.8 | 1.0 max | 0.50 max | 0.02 max | 0.02 max |
| Cupro Nickel 70/30 (C71500) | Remainder | 29.0 - 33.0 | 0.4 - 1.0 | 1.0 max | 0.50 max | 0.02 max | 0.02 max |
| Grade | Tensile Strength (PSI) | Yield Strength (PSI) | Elongation (%) | Hardness (Rockwell B) | Thermal Conductivity | Density (lb/in³) |
|---|---|---|---|---|---|---|
| 90/10 (Annealed) | 40,000 min | 15,000 min | 30% min | 45 - 65 | 26 (Btu/ft²/hr/°F) | 0.323 |
| 70/30 (Annealed) | 50,000 min | 20,000 min | 30% min | 60 - 80 | 17 (Btu/ft²/hr/°F) | 0.323 |
Marine Grade Seawater Piping
High-reliability seamless and welded pipes designed for seawater service. Excellent resistance to stress corrosion and biofouling makes them ideal for ship hulls, desalination condensers, and offshore firewater systems.
Biofouling Resistant Connectors
Complete range of Buttweld and Forged fittings. These components offer superior erosion resistance in turbulent seawater conditions, ensuring long-term integrity in vessel cooling loops.
High Thermal Conductivity
Durable flat products used for tube sheets, heat exchanger shells, and marine hardware fabrication. Known for maintaining structural strength at moderately elevated temperatures.
Corrosion Proof Sealing
Precision-machined forged flanges for secure marine connections. Designed to provide a leak-proof seal in desalination intake systems and subsea hydraulic lines.
Antimicrobial Round Bar
High-purity round, hex, and square bars. Widely utilized for pump shafts, valve stems, and fasteners in marine engineering where antimicrobial surfaces are required.
Dhanavir Steel is a premier stockholder and global supplier of high-performance Stainless Steel, Special Alloys and Nickel Alloys.
© Copyright by Dhanavir Steel | Designed by Mesotek
Dhanavir Steel provides end-to-end industrial steel solutions, specializing in Pipes, Fittings, and Flanges. We combine technical expertise in NACE and IBR testing with a robust global supply chain to deliver quality-assured materials for demanding environments.
Dhanavir Steel provides end-to-end industrial steel solutions, specializing in Pipes, Fittings, and Flanges. We combine technical expertise in NACE and IBR testing with a robust global supply chain to deliver quality-assured materials for demanding environments.