Home > Copper Nickel > Copper Nickel 70/30 Pipes
From the heart of Hamilton, Blundell Pipes and Tubes crafts exceptional piping solutions that stand up to the toughest demands. We take particular pride in our Copper Nickel 7030 Pipes, a material renowned for its incredible resilience in harsh environments. As a trusted local manufacturer and supplier, we ensure these pipes deliver unparalleled performance and longevity for critical projects, providing New Zealand industry with a reliable, home-grown source for this high-performance alloy. Our commitment is to quality you can count on, right here in our own backyard.
Copper Nickel 7030, often called CuNi 70/30, gets its strength from a specific composition of about 70% copper and 30% nickel, with small but vital additions of iron and manganese. This blend results in pipes with outstanding mechanical properties. They offer excellent tensile strength and superb ductility, allowing them to be easily formed and welded. Most importantly, they possess exceptional resistance to corrosion, especially from seawater, and are highly resistant to biofouling, making them a remarkably durable and long-lasting choice for demanding applications.
Specifications : ASTM / ASME SB 111 / 151 / 466
Size : 1/2″ TO 6′ IN OD & NB IN Various SWG & SCH
Thickness : Between 0.15mm and 1.50 mm
Type : Seamless / ERW / Welded / Fabricated / LSAW Pipes
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
Outer Diameter : 4.00 to 22.00 mm
| Grade | Cu | Mn | Pb | Fe | Zn | Ni |
| Cupro Nickel 70/30 | 65.0 min | 1.0 max | .05 max | 0.4-1.0 | 1 max | 29 – 33 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Cu-Ni 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
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 Pipes from Blundell Pipes and Tubes ensures outstanding corrosion resistance, high strength, and durability. Our Pipe is designed for diverse industrial applications, delivering reliability and performance in challenging environments while maintaining competitive pricing.
Blundell Pipes and Tubes, one of the largest suppliers of Copper Nickel 70/30 Pipes in Hamilton, New Zealand, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for copper nickel products in the region.
| STANDARD | WERKSTOFF NR. | UNS |
| Cu-Ni 70/30 | 2.0882 | C71500 |
Yes, we offer custom sizes for Copper Nickel 70/30 Pipes to meet your specific requirements. Our team at Blundell Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@blundellpipes.co.nz.
| Dimension Tolerance | |||||
| Material | Ultimate Tensile Strength1000 psi (MPa) | Yield Strength 0.5% Ext.under Load 1000 psi (MPa) | YElongation % in 2 in. | Fatigue Strength (10×7 cycles) 1000 psi (MPa) | Burst Pressure* 1000 psi (MPa) |
| Copper-brazed Steel | 48-55 (0.330-0.380) | 28-34 (0.190-0.235) | 30-40 | 30 (0.210) | 19.5 (0.135) |
| C12200-Phosphorus deoxidized Copper | 32-38 (0.220-0.265) | 10-14 (0.070-0.100) | 45-60 | 10 (0.070) | 12 ( 0.083) |
| C70600-Copper Nickel 90-10 | 48-54 (0.330-0.370) | 16-22 (0.110-0.150) | 40-55 | 15 (0.100) | 19 (0.130) |
Copper Nickel 70/30 Pipes find extensive use in marine engineering, desalination plants, chemical processing, and offshore industries, thanks to their outstanding resistance to seawater corrosion. They are perfect for heat exchangers, condensers, and cooling systems where long-lasting durability is crucial. These pipes are also utilized in oil and gas, power generation, and industrial piping systems where resistance to erosion, biofouling, and saltwater is vital. Furthermore, they play a key role in shipbuilding for seawater piping, condensers, and ballast systems, ensuring reliable performance even in the harshest marine environments.
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