Precision-Engineered Copper Strip & Foil for High-Reliability Power Systems
Our premium C11000 Oxygen-Free Copper (OFC) and High-Conductivity Copper (ETP Copper) strips & foils are engineered for power transformers, dry-type transformers, and industrial reactors, delivering exceptional conductivity, insulation performance, and durability under extreme thermal and electrical stress.
Key Advantages
| Attribute | Performance Highlights |
|---|---|
| High Electrical Conductivity | ≥ 101% IACS ensures minimum energy loss |
| Excellent Thermal Stability | Reliable operation up to 155°C (Class F insulation) |
| Superior Surface Quality | Burr-free edges, uniform grain structure |
| Strong Mechanical Performance | High fatigue resistance for winding under tension |
| Corrosion & Oxidation Resistance | Improved long-term reliability in humid environments |
| Flexible Processing | Ideal for winding, bending, laminating, brazing |
Technical Specifications
| Specification Item | Data Range / Option |
|---|---|
| Material Grade | C1100 / C1020 / C1220 |
| Temper | O, 1/4H, 1/2H, H |
| Thickness | 0.015 mm – 3.0 mm |
| Width | 5 mm – 600 mm |
| Conductivity | ≥ 58 MS/m |
| Surface | Bright / Anti-oxidation coating |
| Tensile Strength | 180–380 MPa |
| Elongation | 3% – 40% (depending on temper) |
| Edge Shape | Deburred / Chamfered / Fully-rounded |
Core Applications
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High-voltage & ultra-high-voltage power transformers
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Distribution transformers
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Dry-type & cast-resin transformers
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Series reactors / shunt reactors
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Inductive components in smart grids
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Power conversion systems for energy & industrial infrastructure
Manufacturing Competence
✔ Professional burr-free slitting
✔ Online thickness & resistivity inspection
✔ High-precision winding grade copper foil supply
✔ International standards compliance:
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IEC 60317
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ASTM B152 / JIS H3100
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RoHS / REACH
