1060 Aluminum Strip
1060 aluminum strip for transformer windings offers excellent conductivity, superior flexibility, and stable performance. It is ideal for dry-type and oil-immersed transformers. Custom sizes, tempers, and fast delivery are available.
- Alloy:1060
Structure and Core Components of a Transformer
A transformer consists of four parts: windings, iron core, oil tank, and insulating bushings. Its main components are the windings and the iron core (main body). The windings form the electrical circuit of the transformer, while the iron core forms its magnetic circuit. Together, they constitute the transformer's core - the electromagnetic part.
1060 Aluminum Strip for Transformer Windings
1060 aluminum strip used for transformer windings contains 99.6% aluminum. It combines good electrical conductivity, excellent ductility, and stable processing performance. It is mainly used in high- and low-voltage electrical equipment, such as various transformer windings. Its most common temper is O temper, so it is also widely known as aluminum strip for transformer windings.
| Chemical Composition of 1060 Transformer Aluminum Strip (%) | |||||||||||
| Alloy | Si | Fe | Cu | Mn | Mg | Zn | V | Ti | Other:Each | Other:Total | Al |
| 1060 | max. 0.25 | max. 0.35 | max. 0.05 | max. 0.03 | max. 0.03 | max. 0.05 | max. 0.05 | max. 0.03 | max. 0.03 | - | min. 99.60 |
1060 O temper aluminum strip for transformer windings is mainly made from 1xxx series pure aluminum strip products, with a thickness range of 0.08–3.0 mm. Its tensile strength can reach 135 MPa or above, and its elongation can reach 15%. The finished product has good electrical conductivity, thermal conductivity, and corrosion resistance.
Key Differences Between 1060 and 1050 Aluminum Strip
When 1060 and 1050 aluminum strips are compared side by side, the differences become clear:
| Comparison Item | 1050 Aluminum Strip | 1060 Aluminum Strip |
| Minimum aluminum content | ≥99.5% | ≥99.6% |
| IACS conductivity | ≥60% (typical) | ≥61.5% (typical) |
| Suitable applications | Low-voltage transformers, cost-sensitive projects | Medium- and high-voltage dry-type transformers, energy-efficient transformers |
| Market positioning | Economical and practical | Upgraded performance grade |
Specifications of 1060 Aluminum Strip
| Parameter Category | Specification |
| Alloy grade | 1060 (pure aluminum series) |
| Aluminum content | ≥99.6% |
| Temper | O temper (fully annealed, mainstream), H14, H22, H24 (customized on request) |
| Thickness range | 0.08 mm – 3.00 mm |
| Width range | 10 mm – 1650 mm |
| Conductivity | 61%–61.5% IACS (O temper) |
| Resistivity | ≤0.02825 Ω·mm²/m (20°C) |
| Burr height | 0.01–0.03 mm, depending on strip thickness |
| Collapsed side height | 0.05–0.1 mm |
| Tensile strength | 55–110 N/mm² (O temper: 55–95 N/mm²; H22 temper: 75–110 N/mm²) |
| Elongation | 15%–25% (0.20–0.30 mm ≥15%; 0.30–0.50 mm ≥18%; 0.50–1.50 mm ≥23%; 1.50–6.00 mm ≥25%) |
| Edge treatment | Precision chamfering, burr-free; 0.2–0.85 mm adopts pressed edge process, 0.9–3.0 mm adopts pressed edge or rounded edge process (customizable) |
| Surface treatment | Polished surface, free of scratches, oil stains, and impurities; compliant with GB/T 3880-2006; other surface treatments available on request |
| Paper core inner diameter | Φ150 mm, Φ300 mm, Φ400 mm, Φ500 mm |
| Quantity tolerance | ±10% |
| Packaging | Paper + plastic film + woven bag + paper corner protectors + wooden case/wooden pallet; moisture-proof and impact-resistant; paper-only packaging available upon request depending on specification |
| Delivery time | 25 days for regular orders; negotiable for customized orders |
| Quality certificates | ISO 9001, GB/T 3190-1996, GB/T 3880-2006, certificate of origin (Form A, Form E, etc.) |
| MOQ | 1-3 tons |
Tolerance range of 1060 H0/O aluminum strip for transformers
| Alloys | 1060-O/HO | |||||||
| Thickness (mm) | 0.08-0.20 | 0.20-0.40 | 0.40-0.80 | 0.80-1.10 | 1.10-1.40 | 1.40-2.00 | 2.00-2.50 | 2.50-3.00 |
| Thickness Tolerance (mm) | ±8% of nominal thickness | ±0.02 | ±0.03 | ±0.04 | ±0.05 | ±0.06 | ±0.07 | ±0.08 |
| Width (mm) | ＜100 | 100-300 | 300-600 | 600-1250 | 1250-1500 | |||
| Width Tolerance (mm) | ±0.10 | ±0.20 | ±0.30 | ±1.00 | ±2.00 | |||
Performance Advantages of 1060 Aluminum Strip for Transformer Windings
1. Excellent Electrical Conductivity
The conductivity of 1060 aluminum strip remains stable at 61–62% IACS, meeting the design requirements of most transformers and achieving an ideal balance between performance and cost.
2. Outstanding Ductility and Winding Performance
O temper aluminum strip has very high elongation, making it suitable for multi-layer tight winding and helping prevent cracking and strip breakage.
3. Stable Processing Performance
The material has a uniform internal structure, making it suitable for high-speed winding and automated production equipment, thereby improving manufacturing efficiency.
4. Lightweight
Aluminum is a lightweight material, which helps reduce the overall weight of transformers and makes installation and transportation easier.
5. Natural Corrosion Resistance and Maintenance-Free Performance
A dense natural aluminum oxide film forms on the surface, effectively resisting moisture and salt spray corrosion. Its oil-free structure also eliminates leakage risk, making it especially suitable for underground facilities, coastal areas, and other high-humidity environments.
6. Excellent Surface Quality
The strip surface is smooth, free of scratches, oil stains, and oxidation spots, and the edges are burr-free, which effectively protects the insulation layer and improves equipment safety.
Typical Application Fields
Low-voltage windings of dry-type transformers
Oil-immersed distribution transformers
Reactors and inductors
Conductive connectors for power equipment
New energy equipment (photovoltaic inverters, wind power systems)
Edge Treatment of Aluminum Strip
Edge treatment is also a key factor in determining the quality of 1060 aluminum strip. High-quality products require smooth, burr-free edges with chamfering (R-angle) treatment, which polishes the sharp right angles generated during slitting into smooth arcs. This is not only essential for winding safety, but also a critical process for preventing burrs from piercing interlayer insulation and causing turn-to-turn short circuits.
Edge Deburring Range of 1060 HO/O Aluminum Strip for Transformers
| Thickness (mm) | ≤0.20 | >0.20 |
| Burr | ≤0.03 | ≤0.05 |
| Camber | ≤0.5 | ≤2 |
| Layering | ≤4 | ≤5 |
Quality Control
HAOMEI Aluminum pays greater attention to quality assurance, supply range, inspection and testing standards, shipping packaging, and after-sales service.
We have passed the ISO 9001 Quality Management System Certification.
Quality Control Process:
Incoming material inspection after aluminum arrives at the factory - incoming quality control
Detailed inspection before the production line starts
Comprehensive inspection and in-process inspection during slitting production - process quality control
Final quality control after aluminum strip production is completed - finished product quality control
Final quality check before shipment
At the same time, if needed, we can also assist in taking photos and videos of the aluminum strip. All products undergo comprehensive and careful testing before packaging and shipment.
FAQ
Q1: What is the main difference between 1060 and 1050 transformer aluminum strip?
A: 1060 has a higher aluminum content (99.6% vs. 99.5%), which means it offers more stable electrical performance and a slightly higher upper limit of conductivity. For projects with stricter energy-efficiency requirements, 1060 is a better choice.
Q2: How do you ensure stable edge quality in bulk purchases?
A: Our production line is equipped with an online burr detection system and multiple trimming processes. Every coil of aluminum strip is precisely measured before leaving the factory to ensure burr height is far below national standards, guaranteeing safe winding for customers.
Q3: How is the product protected from moisture? Is it easily damaged during transportation?
A: Transformer aluminum strip requires a very high level of moisture protection. We use three-layer packaging: plastic film for moisture resistance, desiccants for moisture absorption, and reinforced paperboard corner protection, followed by sealing in a sturdy wooden case. Even during ocean shipping, the product can arrive in like-new condition without oxidation.
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