Nestled in the heart of Hamilton, New Zealand, Kiri Aluminium stands as a dedicated manufacturer and supplier, bringing world-class materials right to our doorstep. We specialise in providing Aluminium 7050 Circles, a high-strength alloy trusted by demanding industries. Our commitment is to deliver not just a product, but a reliable partnership, ensuring local businesses have access to premium materials backed by expert knowledge and a genuine passion for supporting Kiwi ingenuity and manufacturing excellence.
The exceptional strength of Aluminium 7050 Circles comes from a carefully balanced composition, primarily zinc as the key strengthening element, along with magnesium and copper. This specific combination gives the alloy its renowned resistance to stress corrosion cracking, even in challenging environments. After a rigorous heat-treatment process, it achieves an outstanding strength-to-weight ratio, offering remarkable toughness and durability that can withstand significant loads and impacts, making it a favourite for highly stressed applications.
| Specifications | ASTM B209 / ASME SB209 |
|---|---|
| Temper | O,H12,H14,H16,H18,H19,H22,H24 |
| Thickness | 1 Mm To 100 mm |
| Diameter | Upto 2000 mm |
| Circle Diameter | 3″ DIA up to 38″ DIA 1500 lbs max |
| Circles Form | Hot Rolled Circles, Cold Rolled Circle, Proof Machined Circles |
| Finish | Mill, Customer specific finish |
| Aluminum Circle Coating | PVC Coated, Color Coated, Polyester, Fluorocarbon, polyurethane and epoxy coating |
| Weight % | Zn | Cu | Mg | Zr | Fe | Si | Mn | Ti | Cr | Others (total) |
| Minimum | 5.7 | 2.0 | 1.9 | 0.08 | – | – | – | – | – | – |
| Maximum | 6.7 | 2.6 | 2.6 | 0.15 | 0.15 | 0.12 | 0.10 | 0.06 | 0.04 | 0.15 |
| Material | Temper | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation in 2″ % |
| Aluminium Alloy 7050 Circle | T76511 | 79 | 69 | 7 |
| Aluminium Alloy 7050 Circle | T73511 | 70 | 60 | 8 |
| Aluminium Alloy 7050 Circle | T74511 | 73 | 63 | 7 |
| UNS | EN | DIN,WNr | ISO |
| A97050 | EN3982 | 3.4144 | AlZn6CuMgZr |
Kiri Aluminium based in Hamilton, New Zealand is a renowned manufacturer and supplier of premium aluminium products, including Aluminium Bars, Sheets and Plates, Coils, Chequered Plates, Wires, Pipes, Fittings, Flanges, Forging, Circle, Angles. With a commitment to delivering exceptional quality and service, we cater to diverse industries, offering reliable solutions tailored to specific requirements. Our products are known for their superior strength, corrosion resistance, and precise dimensions. We focus on customer satisfaction by providing an extensive range of aluminium bars designed for structural, industrial, and decorative applications.
Yes, we offer custom sizes for Aluminium 7050 Circles to meet specific project needs. Our team at Kiri Aluminium is committed to providing customized solutions for all your requirements. For more details, contact us at sales@kirialuminium.com
The unique properties of Aluminium 7050 Circles make them indispensable in fields where failure is not an option. You’ll find them forming the critical structural frames of aircraft, including wings and fuselage sections, and in essential components for the aerospace and defence sectors. Beyond the skies, this alloy is vital in high-performance automotive and motorcycle racing for chassis and suspension parts, and it’s also the material of choice for heavy-duty machinery and advanced sporting equipment, where maximum strength with minimal weight is absolutely crucial.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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