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Welcome to Diaz Sheetsandplates, your trusted partner in Manila for premium metal solutions. We take pride in supplying top-quality Copper Nickel 7030 Foil, a material celebrated for its exceptional durability in demanding environments. Sourced and crafted to meet rigorous international standards, our foil is the smart choice for engineers and designers who need reliability and long-term performance. When you work with us, you’re not just buying a product; you’re investing in expertise and a commitment to supporting local industry with world-class materials.
This remarkable foil, often known as Cupronickel, is primarily composed of 70% copper and 30% nickel, creating a superb alloy. Its defining characteristic is an outstanding resistance to corrosion, especially in seawater and various chemical settings. The material is not only strong and tough but also retains its mechanical integrity across a wide range of temperatures. This combination of innate strength and resilience to aggressive elements is what makes it such a dependable engineering material.
| Specifications | ASTM B122 |
| Dimensional specification | JIS, AISI, ASTM, GB, DIN, EN, etc |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Thickness | 4mm-100mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface Finish | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc. |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 70/30 | 65 min | 1.0 max | 0.05 max | 29-33 max | 0.4-1.0 max | 1 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Cupro Nickel 70/30 | 2.0882 | C71500 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Copper nickel 70/30 foil provides excellent corrosion resistance, especially in seawater and marine environments, making it ideal for shipbuilding, desalination and offshore applications Its high strength and delivery the durability ensures longevity even in harsh conditions. The excellent thermoelectric conductivity of the alloy makes it suitable for heat exchangers and electrical components. In addition, it resists biofouling, reduces maintenance costs, and improves productivity. The 70/30 configuration provides a balance of flexibility and rigidity, allowing for ease of manufacture while maintaining its design integrity in demanding applications.
The versatility of Copper Nickel 7030 Foil is truly impressive. It is extensively used in marine engineering for critical components like condenser and heat exchanger tubes in desalination plants and shipbuilding. Beyond the sea, it’s essential in the chemical processing and power generation industries for its reliable performance. You’ll also find it in modern currency, architectural detailing, and even high-quality musical instrument parts, proving its value across a surprisingly wide spectrum of practical and creative applications.
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