Oxygen-free high thermal conductivity (OFHC) copper is widely used in cryogenics and other heat transfer applications in scientific, industrial and medical processes.
Our customers include the Accelerator Science and Technology Centre, Daresbury Laboratory, Warrington – Cavendish Laboratory, Cambridge – Imperial College, London – Sussex University, Brighton – Cardiff University, Wales – CIEMAT, Madrid, Spain – Lawrence Berkley National Laboratory, California – University of British Columbia, Canada – University of St.Andrews, Scotland – FYSIK, Stockholm, Sweden.
Oxygen free copper, also known in Europe as Cu-OF or CW008A to EN13601.
- Composition: Copper 99.95 % min.
- Hardness: B30 – 40
- Conductivity: 101 %
- Tensile strength: 25 – 40 Ksi
In simple terms the thermal conductivity of pure copper is about 400 watts per meter kelvin. This means that a plate of copper with area A and thickness L whose faces are kept at a constant relative temperature difference of deltaT Kelvin will conduct heat at a rate of 400.A/L.deltaT joules per second. Source Anthony Yeh, Ph.D student in Optoelectronics
Fermi National Accelerator Laboratory have published the following paper with useful information on Thermal Conductance https://lss.fnal.gov/archive/2017/pub/fermilab-pub-17-051-ppd.pdf
We can now offer fabricated Oxygen Free Copper products. For more information please follow this link: www.tranect.co.uk/applications/science-and-space/
We hold 0.071 mm dia oxygen free copper wire in stock and make braid using this wire to order. Please contact us for more information.
| Nominal area (mm²) | Size approx (mm) | Web Shop |
| 1.0 | 1.5 mm dia – rope |  |
| 1.27 | 2.5 mm dia – tube | |
| 1.45 | 5×0.5 Flat | |
| 2.0 | 4×1 Flat | |
| 2.0 | 2.5 mm dia – tube | |
| 5.0 | 3.2 mm dia – Rope | |
| 6.0 | 10×1.5 Flat | |
| 6.0 | 4 mm dia – Tube | |
| 8.0 | 5 mm dia- tube | |
| 8.0 | 5 mm dia- rope | |
| 10.0 | 14×1.5 Flat | |
| 10.0 | 5 mm dia- tube | |
| 16.0 | 16×1.5 Flat | |
| 16.0 | 5 mm dia- tube | |
| 25.0 | 25×2.5 Flat | |
| 25.0 | 8 mm dia- tube | |
| 35.0 | 10 mm dia- tube | |
| 50.0 | 35×3 Flat | |