Enameled Aluminum Wire
Transformer Aluminum Strip Alloy Comparison
Comparison of Common Transformer Aluminum Strip Alloys
For transformer manufacturers, selecting the right aluminum alloy is critical for optimizing performance, reducing costs, and ensuring compliance with regional electrical standards. The most frequently used aluminum alloys for transformer windings include 1050, 1060, 1070, and 1350. Below is a comprehensive comparison of their properties and applications.
Aluminum Strip Alloy Comparison Table
| Alloy | Purity | Electrical Conductivity | Features | Applications |
|---|---|---|---|---|
| 1050 | ≥ 99.5% | ≈ 61% IACS | Good formability and corrosion resistance | Entry-level transformers, low-load applications |
| 1060 | ≥ 99.6% | ≈ 61.5% IACS | Higher conductivity, easy to process, widely used | Oil-immersed and dry-type transformers |
| 1070 | ≥ 99.7% | ≈ 62% IACS | Soft texture, excellent conductivity and corrosion resistance | High-end transformer windings, solar inverter coils |
| 1350 | ≥ 99.5% | ≥ 61% IACS | Meets NEMA standards, widely used in North America | Export transformers, American standard designs |
Alloy selection should balance electrical performance, weight, and cost. While 1060 and 1070 aluminum strips are the most common in Asia and Europe due to high purity, 1350 aluminum is more popular in the North American market due to its NEMA compliance. Understanding these alloy characteristics helps transformer manufacturers improve product quality and reduce production costs.
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