As you may know ultrafine enameled copper wire start from 0.011mm is our expertise, however that is made by OFC Oxygen Free Copper, And sometimes it is also called pure copper that is suitable for most electronic application except audio/speaker, signal transmission, integrated circuit.
OCC that is Ultra Pure Copper by Ohno Continuous Casting Process, that might be the puniest copper on the earth, that is 99.9999% also it is called 6N9, however sometimes you may heard 4N9,5N9 that cannot be called OCC although it’s very close.
| Item | occ | ofc |
| Purity | ＞99.99998% | ＞99.99% |
| Specific gravity | 8.938 | 8.926 |
| Gas impurities(O2) | ＜than 5ppm | ＜than 10ppm |
| Gas impurities(H2) | ＜than 0.25ppm | ＜than 0.50ppm |
| Average crystal size | 125.00 meters | 0.02 meters |
| Crystal per meter | 0.008pcs | 50.00pcs |
Features and benefits of OCC
1.The copper is consist of only one crystal, provide excellent Maintainability and electrical properties
2. Resistance: 8-13% lower than OFC
3. Extreme tenacity. Normal copper will be broken after winded 16 circles, however OCC reach 116.
Therefore, OCC is the best material for signal transmission of audio, video, that provide high fidelity audio and video signal, high frequency digital signal transmission
And here is our test report of OCC 6N9 copper with purity 99.999930%
Please click here to check
https://www.rvyuan.com/uploads/OCC-TEST-REPORT.pdf
The copper is pure enough, and with our most advantage manufacturing process and over 20 yeras’ experience of ultrafine enameled copper wire, the ideal OCC wire you can get here with low MOQ.
Meanwhile, we also provide ultrafine bare OCC wire, packed with sealing bag and vaccumize to prevent the wire from rust.
And also enameled OCC litz wire.support customized strands and single diameter.
Please contact us for more details