Products / C10200
C1020 Oxygen-Free Copper Strip
C1020 is high-purity copper with oxygen held to a few parts per million. It gives the highest conductivity of any strip product and can be brazed or heated in hydrogen without embrittlement.
Equivalent designations
| System | Designation |
|---|---|
| UNS | C10200 |
| EN | Cu-OF / CW008A |
| JIS | C1020 |
| GB | TU1 / TU2 |
Typical applications
- Busbars and power terminals
- Heat spreaders and vapor chambers
- Battery tabs and connectors
- Vacuum and RF components
- Flexible connectors
Chemical composition (%)
| Element | Content |
|---|---|
| Cu | ≥ 99.96 |
| O | ≤ 10 ppm |
Physical properties
| Property | Value |
|---|---|
| Density | 8.94 g/cm³ |
| Elastic modulus | 117 GPa |
| Electrical conductivity, annealed | ≥ 100 % IACS |
Tempers and tensile strength
| Temper | Condition | Tensile strength (MPa) |
|---|---|---|
| O | Annealed | ≥ 195 |
| 1/4H | Quarter hard | 215 – 285 |
| 1/2H | Half hard | 235 – 315 |
| H | Hard | ≥ 275 |
Values follow the limits of the governing standard. The mill test certificate for each lot states the measured values.
Supply range
| Item | Value |
|---|---|
| Form | Coil |
| Thickness and width | Supplied to your specification |
| Minimum order | Quoted with each enquiry |
| Lead time | Ex-stock items ship within 48 hours; other items quoted with each enquiry |
Questions buyers ask
When is oxygen-free copper needed instead of ETP copper?
When the part is brazed, welded or annealed in a reducing atmosphere, used in vacuum, or needs the highest conductivity and ductility. ETP copper (C1100) contains oxygen that can cause embrittlement under those conditions.
What documents come with each shipment?
The original mill test certificate for the heat lot and a packing list with coil numbers. RoHS and REACH declarations are provided on request.
Request a quotation
Send us the grade, temper, thickness, width and quantity. We reply within one working day.
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