Kanthal® oxygen-free high-conductivity copper (OFHC) has excellent physical, electrical conductivity and thermal resistance properties. Copper is easily soldered, welded and plated for excellent corrosion resistance. The alloy CDA 10100 has a purity of 99.99%, CDA 10200 has 99.5% and ETP C11000 has 99.9%.
| Alloy | Copper content | Ultimate tensile strength | Electrical conductivity IACS 20°C (68°F) | Electrical resistivity | Density | Coefficient of thermal expansion |
|---|---|---|---|---|---|---|
| CDA 10100 | 99.99% | 379 MPa (55.0 ksi) | 100 | 1.72 Ω cm 10-6 (10.371 Ω cir-mil/ft) | 8.94 g/cm3 (0.323 lb/in3) | 17 µm/m-°C (9.44 µin/in-°F) |
| CDA 10200 | 99.5% | 379 MPa (55.0 ksi) | 100 | 1.72 Ω cm 10-6 (10.371 Ω cir-mil/ft) | 8.94 g/cm3 (0.323 lb/in3) | 17 µm/m-°C (9.44 µin/in-°F) |
| CDA 1100 | 99.9% | 379 MPa (55.0 ksi) | 100 | 1.72 Ω cm 10-6 (10.371 Ω cir-mil/ft) | 8.89 g/cm3 (0.321 lb/in3) | 17 µm/m-°C (9.44 µin/in-°F) |