Based in Hamilton, New Zealand, Hemi Metals proudly manufactures and supplies high-quality Copper Nickel 955 bars and rods. Our team is dedicated to producing materials that meet the most demanding specifications, providing reliable solutions for critical applications. Sourced directly from our facility, these products are backed by local expertise and a commitment to exceptional service, ensuring our clients receive materials they can trust for long-term performance and durability in even the most challenging environments.
Copper Nickel 955 boasts a composition of approximately 95% copper and 5% nickel, often with small additions of manganese and iron. This blend gives the alloy its signature resistance to corrosion, especially in seawater and saline atmospheres. Mechanically, it offers excellent ductility and toughness, allowing for easy fabrication and welding. It maintains good strength across a wide temperature range and is known for its strong anti-fouling properties, making it a durable and reliable choice for marine engineers.
| Standards | ASTM B151 / ASME SB151 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI all International Standards |
| Diameter | Outside Diameter in the range of 4mm to 500mm |
| Width | 1m to 48″ |
| Hex Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| Square Bars | 18mm – 47mm (11/16″ to 1-3/4″) |
| Flat Bars | 1/2” to 10” in the thickness range of 2mm to 150mm |
| Wire Length | Max 12000 mm |
| Wire Diameter | 5.5 – 400 mm |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Types | Round, Square, Hex (A/F), Flat, Square, Rectangle, Billet, Ingot, Forging, Wire Bobbin, Wire Spool, Wire Rope, Spring Wires, Welding Wire, Coiled Wire Etc. |
| STANDARD | UNS | WERKSTOFF NR. |
| Cu-Ni 95/5 | C70400 | – |
Melting Point – Liquidus°F |
2050 |
Densitylb/cu in. at 68°F |
0.323 |
Specific Gravity |
8.94 |
Electrical Conductivity% IACS at 68°F |
14 |
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F |
37 |
Coefficient of Thermal Expansion 68-57210?6 per °F (68 – 572°F) |
9.7 |
Specific Heat CapacityBtu/ lb /°F at 68°F |
0.09 |
Modulus of Elasticity in Tensionksi |
17000 |
Modulus of Rigidityksi |
6400 |
Yes, Copper-nickel 95/5 bars and rods are suitable for hygienic and sanitary applications due to their antimicrobial properties, corrosion resistance, and non-toxic nature, making them ideal for water and food-related systems.
Yes, Copper-nickel 95/5 bars and rods can be recycled after use. Their high recyclability allows them to be reprocessed without significant loss of properties, promoting sustainability and resource efficiency.
Yes, Copper-nickel 95/5 bars and rods are suitable for potable water applications due to their excellent corrosion resistance, biofouling resistance, and durability, ensuring safe and long-lasting performance in water systems.
The exceptional corrosion resistance of Copper Nickel 955 bars and rods makes them a first choice for marine and offshore applications. You’ll commonly find them used in shipbuilding for components like pump shafts, valve stems, and fasteners, as well as in heat exchangers and condensers for desalination plants. Their reliability also extends to the oil and gas industry for fittings and custom-machined parts, and they are even utilised in coinage and architectural applications where both aesthetic appeal and longevity are key considerations.
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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