Based in the industrious city of Hamilton, Hemi Metals has built a strong reputation for manufacturing and supplying top-tier nickel alloy forgings. We understand that the heart of any demanding application lies in the integrity of its components, which is why our focus is on delivering forged parts known for their exceptional reliability and performance. Our commitment is to provide New Zealand’s key industries with locally-produced solutions that stand up to the most challenging environments, ensuring your projects are built on a foundation of trusted quality and enduring strength.
Our nickel alloy forgings are engineered for resilience, combining specific elements like chromium and molybdenum to achieve superior resistance to corrosion and high temperatures. This careful composition directly translates into outstanding mechanical properties, including high tensile strength, impressive toughness, and excellent fatigue resistance. The result is a component that doesn’t just meet specifications but consistently performs under extreme pressure, heat, and stress, offering a longevity that is critical for safety and operational efficiency.
| Standard | ASTM B564, ASME SB564 |
| Specification | 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. |
The forging process for Nickel Alloy typically takes several hours, depending on the complexity and size of the component. The overall time includes heating, shaping, and cooling stages, which can vary based on specific requirements.
Temperature control is crucial in forging Nickel Alloy, as it ensures proper material flow and prevents defects like cracking or warping. Maintaining optimal temperatures improves mechanical properties, such as strength and durability, ensuring high-quality forged components.
Improving the surface finish of forged Nickel Alloy parts can be achieved through processes like polishing, grinding, or shot peening. Additionally, using proper lubrication during forging and post-forging heat treatment helps minimize surface imperfections.
You’ll find our nickel alloy forgings at work in the most critical parts of industry, from the high-pressure valves and rugged pump shafts in oil and gas extraction to the turbine blades and exhaust systems demanding peak performance in aerospace. They are essential in chemical processing plants for their ability to handle corrosive substances and are equally vital in power generation for their thermal stability. Essentially, wherever conditions are too tough for ordinary materials, our forgings provide the durable, dependable solution needed to keep operations running safely and effectively.
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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