bedra 10200
Oxygen-Free Copper
It is produced from selected refined cathodes by direct conversion under carefully controlled conditions to prevent contamination by oxygen and other impurities. This alloy exhibits exceptionally high electrical and thermal conductivity, as well as good corrosion resistance and solderability. Due to its extremely low oxygen content, it is suitable for gas welding or high-temperature brazing without embrittlement or "gassing" when heated in a reducing atmosphere.
Typical applications:
It is mainly used in the electrical industry, including busbars in electrical power installations; rotor bars in induction motors; EV connectors, contacts, and relays; vacuum tubes and solid-state devices; as well as glass or ceramic to metal seals.
Standardization and composition
| UNS | C10200 |
|---|---|
| EN | Cu-OF (CW009A) |
| JIS | C1020 |
| GB | TU0 |
| Cu+Ag | ≥ 99.97 |
| Pb | ≤ 0.004% |
| Bi | ≤ 0.001% |
| Sb | ≤ 0.002% |
| Fe | ≤ 0.004% |
| As | ≤ 0.002% |
| S | ≤ 0.004% |
| P | ≤ 0.002% |
| Ni | ≤ 0.002% |
| Sn | ≤ 0.002% |
| Zn | ≤ 0.003% |
| O | ≤ 0.001% |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 8.94 |
|---|---|
| Melting point (℃) | 1083 |
| Electrical conductivity (%IACS) | ≥ 98.3 |
| Thermal conductivity (W/m·K) | 391.4 |
| Coefficient of thermal expansion② (10-6/K) | 16.97 |
| Modulus of elasticity (GPa) | 117.2 |
Fabrication Properties
Note③：C36000 = 100%
| Cold workability | Excellent |
| Hot workability | Excellent |
| Brazing | Excellent |
| Machinability rating③ | 20% |
Mechanical Properties④
Note④：bedra technical standards
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) | Hardness (HBW) |
|---|---|---|---|---|---|
| 3 ≤ Ф < 10 | H04 | 290 | / | 8.0 | ≥ 80 |
| 10 ≤ Ф ≤ 45 | H04 | 270 | / | 8.0 | 80 - 110 |
| 10 ≤ Ф ≤ 45 | O60 | 200 | / | 40 | ≥ 35 |
Dimension Tolerance and Delivery Forms
Note⑤：The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.
| Straight bar | Coil wire | |||||
| Diameter (mm) | Tolerance⑤ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) | ID(mm) | Weight(kg) |
| 3.0 ≤ Φ < 6.0 | 0.04 | 0.02 | 3600 | 0.5 | 650 | 50 |
| 6.0 ≤ Φ < 10 | 0.06 | 0.03 | 3600 | 0.5 | 1200 | 500 |
| 10 ≤ Φ < 18 | 0.06 | 0.03 | 3600 | 0.5 | 1200 | 500 |
| 18 ≤ Φ < 30 | 0.15 | 0.075 | 3600 | 1.0 | / | / |
| 30 ≤ Φ < 50 | 0.18 | 0.09 | 3600 | 1.0 | / | / |
Other delivery forms
Tubes, Profiles
Further product information
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH
Please contact us
Sales Asia-Pacific (Excluding-India)
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Berkenhoff GmbH (headquarters)
- Kinzenbach plant
- Berkenhoffstrasse 14
- 35452 Heuchelheim
- Germany
- +49 641 601 0
- +49 641 601 222
- info(at)bedra.com
Berkenhoff GmbH
- Merkenbach plant
- Rehmühle 1
- 35745 Herborn
- Germany
- +49 2772 5002 0
- +49 2772 5002 155
- info(at)bedra.com
bedra Vietnam Alloy Material Co., Ltd
- Lot CN-06, Hoa Phu Industrial Park,
Mai Dinh Commune,
Hiep Hoa District, Bắc Ninh Province,
Vietnam
- +84 2043900104
- +84 2043900110
- info-asia(at)bedra.com
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