1060 Alloy Aluminum Strip for Transformer

Top choice for transformer

1060 aluminum strip is the preferred choice for transformer aluminum strips primarily due to its excellent cost-effectiveness and strong adaptability. As high-purity pure aluminum, it has a conductivity of 61%-62% IACS, perfectly meeting the requirements of transformer winding in terms of electrical conductivity, thermal conductivity, and ductility. It is corrosion-resistant and durable, requiring no unnecessary performance characteristics and fully adapting to transformer operating requirements.

Furthermore, its cost is extremely low, with no added precious alloys. It is approximately $100-150 per ton cheaper than 3003 aluminum strip, significantly lower than copper strip prices. Moreover, its mature production process and convenient processing make it suitable for large-scale production, maximizing cost control and efficiency for companies. It represents the optimal solution balancing quality and cost.

Chemical composition of 1060 alloy aluminum

Specification of 1060 aluminum strip

Application

• High and low voltage winding for 10kV~35kV distribution transformers, rectifier transformers, electric furnace transformers, and other equipment.

• Auxiliary winding and lead winding for large power transformers and power system transformers.

• Winding for photovoltaic transformers.

• Auxiliary accessories for transformers, such as transformer leads, terminals, and shielding layers.

• Conductive components for reactors.

• Common winding materials for small transformers (such as transformers for household appliances).

1060 alloy properties

1. Electrical Properties

- Conductivity: O temper ≥61.5% IACS, excellent conductivity, low energy consumption, a cost-effective alternative to copper;

- Resistivity: 20℃ ≤0.02825Ω·mm²/m, extremely low and stable value, avoiding local overheating and ensuring stable operation;

- Dielectric Properties: Good insulation with no electromagnetic interference, combined with an insulating layer to prevent short circuits and ensure safe operation.

2. Mechanical Properties

- Tensile Strength: 75-105MPa (slightly varies with thickness), suitable for static stress, not easily broken during winding;

- Elongation: ≥25% (δ50 standard), excellent plasticity, easy to bend and wind, no cracks during processing;

- Hardness: HV25-35, soft texture, cold-worked to increase hardness;

- Fatigue Resistance: It can withstand slight vibration, not prone to fatigue fracture, ensuring transformer service life.

3. Physical Properties

- Density: Approximately 2.71 g/cm³, only 1/3 the density of steel, significantly reducing weight and lowering transportation and installation costs;

- Thermal Conductivity: Thermal conductivity approximately 237 W/(m·K), excellent heat dissipation, preventing localized overheating;

- Melting Point: Approximately 660℃, high temperature resistant, can withstand the normal operating temperature of transformers, without softening or deformation;

- Dimensional Accuracy: Thickness 0.08-3.0 mm, width 10-1650 mm, extremely small tolerances, smooth edges, neat winding;

- Surface Quality: Smooth and clean, without obvious defects, preventing partial discharge or insulation failure.

4. Processing Performance

- Stamping and Stretching Performance: Good plasticity, easy to stamp and stretch, suitable for diverse winding designs;

- Winding Performance: Soft and tough, not easily broken or wrinkled during winding, suitable for automated equipment, high efficiency;

- Welding Performance: Can be welded in various ways, joints are strong, easy winding splicing, suitable for pure aluminum welding specifications;

- Surface Treatment Performance: Easy to anodize and coat, which can improve corrosion resistance and prevent processing scratches.

5. Corrosion Resistance

- Atmospheric Corrosion Resistance: Resistant to atmospheric freshwater erosion, salt spray resistance ≥1000 hours;

- Medium Corrosion Resistance: Resistant to neutral and weakly acidic media, suitable for transformer internal media, not resistant to strong corrosive environments;

- Aging Resistance: Stable performance, not easily aged or oxidized, service life matches the transformer's 15-20 year design life.

6. Supplementary Notes

- Cannot be heat-treated for strengthening; only cold working can optimize hardness. It is of high cost-effectiveness, reducing costs by 15%-30% and weight by approximately 40% compared to copper.

- Performance is controlled by purity; impurity content must be strictly controlled to ensure compliance with national standards.

- Primarily supplied in the O temper; cold-working states can be customized. Mechanical properties may differ, but electrical properties are stable.

Our Packaging Process

1. Aluminum strip roll inspection passed → Paper core installed

2. Interlayer paper clamping → Tightening

3. Inner wrapping: Rust-proof paper + desiccant + PE film sealing

4. Middle wrapping: Cardboard + corner protectors + stretch film

5. Fumigation-free wooden crate → Steel strap securing

6. Labeling and marking → Container loading (20ft/40ft container)

FAQ

1. What is 1060 aluminum transformer strip?

A: 1060 aluminum transformer strip is a high-purity aluminum strip containing about 99.6% aluminum. It is widely used in dry-type transformers, oil transformers, and winding applications because of its good electrical conductivity, corrosion resistance, and formability.

2. Why is 1060 aluminum used for transformer winding?

A: 1060 aluminum is used for transformer windings because it offers:

• High electrical conductivity

• Light weight compared with copper

• Lower material cost

• Good flexibility and bending performance

• Excellent oxidation and corrosion resistance

These features make it a cost-effective material for transformer manufacturers.

3. What are the common tempers of 1060 aluminum strips?

A: The common tempers are:

• O temper -soft, suitable for winding

• H24 temper -half-hard, better strength

• H18 temper -harder temper for special uses

For transformer winding, O temper is the most popular because it has good elongation and is easy to process.

4. What are the typical specifications of 1060 aluminum strip for transformer?

A: Typical specifications include:

• Thickness: 0.08 mm to 3.00 mm

• Width: 10 mm to 1650 mm

• Aluminum content: 99.6% minimum

• Surface: smooth, no scratches, oil stains, or oxidation marks

Actual size depends on the transformer design and customer requirements.

5. What are the advantages of 1060 aluminum strip over copper strip in transformers?

A: Compared with copper strip, 1060 aluminum strip has these advantages:

• Much lower cost

• Lighter weight

• Easier transportation and handling

• Good enough conductivity for many transformer applications

• Stable performance in large-scale industrial production

However, aluminum usually needs a larger cross-sectional area than copper to achieve similar conductivity.

Original source: https://www.alcustrip.com/product/1060-alloy-aluminum-strip-for-transformer.html