As a trusted manufacturer and supplier based in Hamilton, New Zealand, Hemi Metals takes pride in producing premium Copper Nickel 7030 Forgings for demanding industries worldwide. Our location in the heart of the Waikato gives us a unique advantage, combining local expertise with a global outlook. We are dedicated to crafting forgings that offer exceptional performance and longevity, providing reliable solutions for critical applications where failure is simply not an option.
Copper Nickel 7030, often called cupronickel, is an alloy renowned for its impressive strength and outstanding resistance to corrosion, especially in marine environments. Its composition, with approximately 70% copper and 30% nickel, along with small additions of iron and manganese, gives it excellent mechanical properties. This includes high tensile strength, good ductility, and the ability to perform reliably across a wide range of temperatures, making it a robust and versatile material choice for heavy-duty use.
| Standard | DIN, ASTM, BS and all International Standards |
|---|---|
| Flat bar blocks | up to 27″ width and 15,000 lbs |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| 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 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Copper Nickel 70-30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Copper Nickel 70/30 | 2.0882 | C71500 |
The durability of Copper Nickel 70/30 forgings is ensured by excellent corrosion resistance, high tensile strength, superior weldability, resistance to seawater, anti-biofouling properties, and consistent alloy composition for enhanced performance.
Copper Nickel 70/30 forgings offer superior strength, enhanced corrosion resistance, improved material utilization, reduced waste, better grain structure, and higher durability compared to machining, making them ideal for demanding applications.
Compatible welding processes for Copper Nickel 70/30 forgings include TIG (GTAW), MIG (GMAW), and shielded metal arc welding (SMAW), ensuring strong joints, excellent corrosion resistance, and minimal thermal distortion.
The primary use for our Copper Nickel 7030 Forgings is within the marine sector, where they are essential for components like seawater pipework fittings, pump bodies, and valve stems due to their superb resistance to saltwater corrosion. Beyond the sea, these forgings are vital in the oil and gas industry for pipe systems and in power generation plants for condenser tubes. Their reliability also makes them suitable for desalination equipment and various high-specification chemical processing applications where durability is paramount.
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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