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Okoye Nickel Alloys is a reputable manufacturer and supplier of Copper Nickel 70/30 Tubing based in Kinshasa, Congo. They’re known for delivering high-quality tubing solutions that boast impressive corrosion resistance, durability, and strength. These tubes are meticulously engineered to meet the rigorous demands of marine, industrial, and chemical applications. Okoye Nickel Alloys provides Copper Nickel 70/30 Tubing in both seamless and welded forms, available in a variety of sizes and specifications to cater to different needs. With a strong commitment to quality and customer satisfaction, the company serves a range of industries, including shipbuilding, offshore engineering, desalination, power generation, and chemical processing.
Copper Nickel 70/30 Tubing is made up of 70% copper and 30% nickel, with small amounts of iron and manganese added to boost its strength and corrosion resistance. This alloy is particularly effective against seawater corrosion, biofouling, and erosion, making it a top choice for marine and offshore applications. It has a tensile strength of around 345 MPa, a yield strength of 150 MPa, and an elongation of 25%. The alloy also maintains good thermal and electrical conductivity, performing reliably even under high-temperature and high-pressure conditions. Its exceptional toughness and resistance to stress corrosion cracking ensure it remains durable in harsh environments.
| Copper Nickel 70/30 Standard | : | ASTM / ASME SB 111 / 466 |
| 70/30 Copper Nickel Size | : | 1/2″ TO 6′ IN OD & NB IN Various SWG & SCH |
| Copper Nickel 70/30 Outer Diameter | : | 4.00 to 22.00 mm |
| 70/30 Copper Nickel Wall Thickness | : | Between 0.15 mm and 1.50 mm |
| Copper Nickel 70/30 Type | : | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Copper Nickel 70/30 Grade | : | UNS C 71500 (CU -NI- 70/30), UNS NO. C 10100, 10200, 10300, 10800, 12000, 12200 |
| 70/30 Copper Nickel Form | : | Round, Rectangular, Square, Hydraulic. |
| Copper Nickel 70/30 Length | : | Single Random, Double Ranidom & Cut Length |
| 70/30 Copper Nickel End | : | Plain End, Bevelled End, Treaded |
| Cu-Ni 70/30 | Cu | Pb | Mn | Fe | Zn | Ni |
| 65.0 min | 0.05 max | 1.0 max | 0.4-1.0 | 1 max | 29 – 33 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 20000 psi | 50000 psi | 30 % |
At Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel 70/30 Tubing in Kinshasa, Congo, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Congo, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Copper Nickel 70/30 Tubing is extensively utilized in industries that require corrosion-resistant, durable, and high-performance tubing. It’s perfect for seawater piping systems, condensers, heat exchangers, desalination plants, and cooling systems. These tubes are also commonly found in shipbuilding, offshore oil and gas platforms, and chemical processing equipment, where they frequently encounter saltwater and brine. Thanks to its excellent thermal stability, mechanical strength, and anti-biofouling properties, Copper Nickel 70/30 Tubing guarantees reliable, long-lasting performance in demanding marine and industrial settings.
