Hemi Metals is a trusted name in Hamilton’s industrial landscape, known for delivering exceptional metal solutions right from the heart of New Zealand. When it comes to our Copper Nickel Round Bars, customers know they are receiving a product crafted with precision and a deep understanding of marine and industrial demands. We take pride in offering materials that are not just supplies, but a foundation for building resilient and long-lasting projects, backed by our local expertise and commitment to quality.
The specific composition of our Copper Nickel Round Bars, often the 90/10 or 70/30 copper-nickel blend, gives them a unique combination of strength and exceptional resistance to corrosion, especially in saltwater environments. This alloy offers impressive mechanical properties, including high tensile strength and excellent ductility, allowing it to perform reliably under stress and in challenging conditions. It also maintains its toughness across a wide range of temperatures, making it a wonderfully adaptable material for engineers who need durability they can count on.
| Specifications | ASTM B151 / ASME SB151 |
|---|---|
| Dimensions | ASTM, ASME and API |
| Size | 5 mm To 500 mm |
| Diameter | 10 mm To 100 mm |
| Length | 100 mm To 3000 mm Long & Above, 100 mm TO 90/100 mm |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Form | Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging Etc., |
| Condition | Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 90-10 | 88.6 min | 1.0 max | .05 max | 9-11 max | 1.8 max | 1 max |
| Cu-Ni 70-30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Copper Nickel 90/10, 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Bar Diameter (mm) | Weight (kg/m) |
|---|---|
| 6 | 0.22 |
| 8 | 0.39 |
| 10 | 0.62 |
| 12 | 0.89 |
| 16 | 1.58 |
| 20 | 2.47 |
| 25 | 3.85 |
| 32 | 6.31 |
| 40 | 9.86 |
| 45 | 12.5 |
| 50 | 15.4 |
| 60 | 22.2 |
| 65 | 26.0 |
| 75 | 34.7 |
| 90 | 49.9 |
| 100 | 61.6 |
| STANDARD | WERKSTOFF NR. | UNS |
| Cupro Nickel 90/10 | 2.0872 | C70600 |
| Cupro Nickel 70/30 | 2.0882 | C71500 |
| Type | SIZES (mm) | SIZES (Inches) | ISO Tolerance |
|---|---|---|---|
| Cold Drawn and Ground | 10.00 – 75.00 | 5/6″ – 2.50″ | h8-h9-h10-h11 |
| Peeled and Polished | 40.00 – 150.00 | 1.50″ – 6.00″ | h11, h11-DIN 1013 |
| Peeled and Ground | 20.00 – 50.00 | 3/4″ – 2.00″ | h9-h10-h11 |
| Cold Drawn and Polish | 3.00 – 75.00 | 1/8″ – 3.00″ | h8-h9-h10-h11 |
Yes, copper-nickel round bars are customizable in terms of alloy composition, dimensions, mechanical properties, and surface finishes to meet specific application requirements across various industries.
These round bars are essential in applications where failure is not an option. You’ll find them at the core of critical marine systems, such as shipbuilding for propellers shafts and pumps, and within desalination plants where seawater is a constant factor. Their reliability also makes them a top choice for offshore oil and gas platforms, power generation condensers, and in chemical processing equipment. Essentially, wherever there’s a need for a material that can stand up to aggressive environments, our Copper Nickel Round Bars provide a proven and robust solution.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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