Wholesale 1050 Aluminum Strip Transformer Winding

1050 aluminum transformer strip

1050 aluminum strip (O temper) is the mainstream conductive material for high and low voltage windings of dry-type and oil-immersed transformers. With its high high electrical conductivity (about 61% IACS), excellent ductility, and clean, burr-free surface, it can efficiently wind precision coils and reduce energy consumption and temperature rise.

At the same time, it has the advantages of being lightweight, corrosion-resistant, and cost-effective, and is widely suitable for the transformer manufacturing needs of high-rise buildings, underground facilities, humid environments and other scenarios.

1050 alloy chemical composition(%)

1050 aluminum strip specification

Our 1050 O aluminum strip properties

Electrical conductivity: >60% IACS (20℃)

Resistivity: ≤0.02825 Ω·mm²/m

Tensile strength: 60~95 MPa

Yield strength: 15~35 MPa

Elongation: ≥25%~35%

Hardness: 16~25 HB

Density: 2.71 g/cm³ (approximately 1/3 that of copper)

Thermal conductivity: 222~230 W/(m·K), rapid heat dissipation

Melting point: 660℃

Coefficient of thermal expansion: 23.5×10⁻⁶ /K

Applications

1. Dry-type transformer foil winding

2. Oil-immersed transformer winding

3. Reactor and instrument transformer winding

4. Transformer shielding, grounding, and structural components

5. Special and small aluminum transformers

Packaging&Delivery

- Inner layer: 1-2 layers of neutral moisture-proof paper + PE stretch film seal, with silica gel desiccant (500-1000g/m³), paper sleeve, and plastic plugs.

- Middle layer: Cardboard covering, secured with galvanized steel straps (2-4 straps circumferentially, 1-2 straps axially).

- Outer layer: Fumigation-free/fumigated wooden pallets (1100×1100mm or 1200×1000mm), large rolls with grid-like/cage-type wooden frames; IPPC fumigation markings and certificates are for exports to Europe and America.

1050 vs 1060 aluminum strip

Conductivity: 1060 alloy has a slightly higher conductivity (≥60% IACS) than 1050 aluminum (≥59% IACS), resulting in lower power loss.

Mechanical Strength: 1050 aluminum has higher tensile strength (75-120MPa) and better dimensional stability at high temperatures; 1060 has better ductility (elongation at rest ≥22%), making it easier to form.

Purity: 1060 alloy contains ≥99.6% aluminum, with fewer impurities; 1050 aluminum contains ≥99.5% aluminum, with slightly higher impurities.

Applications: 1050 alloy is suitable for H-class dry-type and mining explosion-proof transformers, which are designed for high temperatures and high stress; 1060 aluminum is suitable for oil-immersed and conventional dry-type transformers, offering wider applications.

Machining Compatibility: 1060 aluminium strip is easily processed into complex coils, suitable for automated winding systems; 1050 alloy has high hardness, making it suitable for high-strength coil processing.

Cost: 1050 has a slightly lower cost; 1060 offers better value for money and is the industry mainstream.

Corrosion Resistance and Lifespan: 1060 aluminum has excellent natural corrosion resistance and a long lifespan in normal scenarios; 1050's corrosion resistance can be improved through surface treatment, resulting in a better lifespan in high-temperature and high-stress scenarios.

Simply speaking, according to our sales data, 1060 aluminum strip is more popular while 1050 aluminum strip also has its market.

Original source: https://www.alcustrip.com/product/wholesale-1050-aluminum-strip-transformer-winding.html