These are ideal for electrical and electronic applications where high conductivity is critical.
| Copper Grade | Purity | Electrical Conductivity | Notes |
|---|---|---|---|
| C101 (OFHC) | ~99.99% | Excellent (101% IACS) | Oxygen-free, excellent for vacuum and high-frequency applications |
| C110 (ETP) | ~99.9% | Very High (100% IACS) | Most commonly used copper; cost-effective and widely available |
