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Kunj Sheets and Plates is a leading manufacturer and supplier of beryllium copper foils in Delhi, India, providing precision-engineered solutions for high-performance industrial applications. Renowned for quality and innovation, Kunj provides beryllium copper foils that feature superior strength, electrical conductivity, and fatigue and corrosion resistance. Processed with latest technology and rigorous quality checks, these foils are of international standards and suitable for demanding applications in the electronics, aerospace, and automotive industries. With emphasis on timely delivery and customer satisfaction, Kunj is a respected name in the non-ferrous industry.
Beryllium copper foils are made of copper (around 97–98%) and beryllium (1.8–2%), along with traces of cobalt or nickel to improve certain properties. These foils provide a special blend of high strength (to 1400 MPa when age-hardened), high conductivity (20–60% IACS), and good wear and fatigue resistance. They also impart superior dimensional stability and corrosion resistance. Beryllium copper foils are not magnetic, and they are stable to heat. They can be accurately shaped and machined and are accordingly suitable for complex and high-reliability components.
| Standard Specification : | ASTM B194 / ASME B194 |
| Dimensions : | ASTM, ASME, and API |
| Sheets Thickness : | Range from .008″ to .0125″ |
| Plates Thickness : | Ranges from .0125″ to 5.00″ |
| Sheets/Plates Width : | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Sheets/Plates Length : | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Tempers : | Annealed, 1/4, 1/2 Hard, 3/4 Hard, Full Hard |
| Hardness : | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Value Added Service : | Cladding, Heat Treatment, Annealed, Pickling, Polish, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Be ≥ | Impurities ≤ % | |||||||
| BeO | Be2C | Fe | Al | Si | Mg | Mn | Other single elements | |
| 98.5% | 1.5 | 0.2 | 0.15 | 0.14 | 0.07 | 0.08 | 0.02 | 0.03 |
Beryllium copper foil has many advantages due to its unique properties. Its exceptional strength-to-weight ratio and low density make it ideal for applications requiring lightweight yet durable materials. The high modulus of stability ensures excellent stability and theoretical stability, which is essential for precision mechanical and aerospace applications. In addition, beryllium foil provides excellent thermal and electrical conductivity, enhancing performance in thermosensitive electronics and systems Its corrosion resistance and resistance to harsh environmental conditions provides reliability for complexity. These properties and machinability make beryllium film a versatile and efficient material.
Beryllium copper foils are extensively applied in the electronics field. They are used to make connectors, switches, relays, and precision springs based on their high conductivity and mechanical strength. In the aerospace industry, they are employed in high-stability components that have to endure thermal and mechanical stress. They are utilized in automotive industries for sensor diaphragms, contacts, and pressure-sensitive devices. They are also applied to telecommunications, defense devices, and precision devices. The singular combination of mechanical strength and electrical property makes beryllium copper foils invaluable in high-end engineering and technology-based industries.
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