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Home > Copper Nickel > Copper Nickel 70/30 Tubing
Wissa Pipes stands as a trusted name in Kinshasa, providing robust and reliable industrial solutions for the dynamic needs of the Congo. Our specialization in materials like Copper Nickel 7030 Tubing reflects our commitment to quality and durability. We understand the demanding environments our clients operate in, which is why we source and supply products that are built to perform, ensuring your projects benefit from superior materials and our local expertise, right here in the heart of Central Africa.
This particular tubing, often called Cupronickel 70/30, is an alloy composed primarily of copper with about 30% nickel. That blend gives it a remarkable set of mechanical properties. It boasts excellent corrosion resistance, especially in seawater, and has high strength and ductility. It’s also highly resistant to biofouling and stress corrosion cracking, making it an incredibly tough and long-lasting material for critical applications where failure is not an option.
Specification : ASTM B466, B467, B111 / ASME SB466, SB467, SB111
Standard : ASTM, ASME and API
Size : 1/2″ TO 6′ IN OD & NB IN Various SWG & SCH
Outer Diameter : 4.00 to 22.00 mm
Wall Thickness : Between 0.15mm and 1.50 mm
Type : Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials : Sizes and Specifications other than above can be manufactured on request
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Cu-Ni 70-30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.94 g/cm3 | 0.323 lb/in3 |
| Melting point | 2140°F | 1171°C |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Copper Nickel 70/30 Tubing from Wissa Pipes and Tubes ensures outstanding corrosion resistance, high strength, and durability. Our Tube is designed for diverse industrial applications, delivering reliability and performance in challenging environments while maintaining competitive pricing.
In marine engineering, Copper Nickel 70/30 Tubing is widely used for seawater piping, condensers, heat exchangers, and desalination plants, thanks to its excellent corrosion resistance. It’s also found in offshore oil and gas systems, power generation units, and shipbuilding for cooling and firefighting systems. Moreover, it’s utilized in the chemical processing industry for the safe transport of corrosive fluids. Its durability, resistance to scaling, and ability to withstand high-pressure conditions make it a favored choice in critical industrial sectors where performance and reliability are paramount.
| Size (in) | Wall Thickness (in) | Outside Diameter (in) | Approx Weight (lbs/ft) |
|---|---|---|---|
| 3/8 OD | 0.049 | 0.38 | 0.2 |
| 2-1/2 | 0.38 | 2.88 | 12.1 |
| 1/4 OD | 0.035 | 0.25 | 0.1 |
| 1/4 | 0.072 | 0.54 | 0.43 |
| 1/2 | 0.120 | 0.84 | 1.1 |
| 3/8 | 0.095 | 0.68 | 0.19 |
| 1 | 0.180 | 1.32 | 2.61 |
| 1-1/4 | 0.220 | 1.66 | 2.18 |
| 3/4 | 0.148 | 1.05 | 1.71 |
| 1-1/2 | 0.25 | 1.9 | 5.25 |
| 2 | 0.340 | 2.38 | 8.85 |
| 3 | 0.46 | 3.5 | 18.7 |
Yes, we offer custom sizes for Copper Nickel 70/30 Tubing to meet your specific requirements. Our team at Wissa Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@wissapipes.com.
Copper Nickel 70/30 tubing, composed of 70% copper and 30% nickel, is widely used in marine and offshore industries due to its exceptional corrosion resistance, especially in seawater environments. It is also used in heat exchangers, desalination plants, and cooling systems, where high resistance to fouling and bio-corrosion is crucial. Its durability and ability to withstand high temperatures make it ideal for chemical processing, power plants, and shipbuilding applications. Its excellent thermal conductivity and strength make it suitable for heat transfer systems.
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