Product Introduction
CoreMetal’s UNS C10700 oxygen-free copper bars are manufactured with silver-bearing technology and ultra-low oxygen content (≤0.001%), providing exceptional electrical and thermal conductivity alongside superior resistance to hydrogen embrittlement. These bars are essential for high-reliability electrical applications including bus bars, switchgear components, and electronic connectors where maximum conductivity and long-term stability are critical requirements.
Key Specifications
| Parameter | Details |
| Standard | ASTM B152/B187, ASTM B188, IEC 028028 |
| Grade | C10700 (Oxygen-Free Silver-Bearing Copper) |
| Composition | Cu+Ag: ≥99.95%, Ag: 0.085-0.025%, O: ≤0.001%, P: ≤0.003% |
| Conductivity | ≥101% IACS (annealed) |
| Dimensions | Width: 10-200mm, Thickness: 2-50mm, Length: up to 6000mm |
| Shape | Flat bus bar, Round bar, Square bar, Profile bars |
| Surface Finish | Bare, Silver-plated, Tin-plated, Nickel-plated |
| Temper | O (Annealed), H01-H04 (Half-hard to Hard) |
Product Features
✅ Ultra-High Conductivity – ≥101% IACS ensures minimal energy loss in electrical distribution systems.
✅ Hydrogen Embrittlement Resistant – Oxygen content ≤0.001% prevents embrittlement during brazing or heating in reducing atmospheres.
✅ Superior Thermal Conductivity – Excellent heat dissipation for electrical switching and power electronics applications.
✅ Silver-Bearing Enhancement – Small silver addition (0.085-0.025%) improves resistance to softening at elevated temperatures.
✅ Excellent Fabricability – Easily cut, punched, bent, and welded using standard metalworking techniques.
✅ Low Contact Resistance – Excellent surface contact properties for reliable electrical connections.
Applications
| Industry | Applications |
| Power Distribution | Bus bars, switchgear buswork, transformer leads |
| Electronics | Semiconductor lead frames, PCB bus bars, connectors |
| Renewable Energy | Solar inverter bus bars, wind turbine components |
| Electric Vehicles | Battery pack interconnects, motor connections |
| Welding | Resistance welding electrodes, spot welding tips |
| Vacuum Electronics | Vacuum tube components, X-ray equipment |
Hot Tags
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