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Tata Steel Group’s Transformer Aluminum Foil is a high-purity electrical conductivity material engineered specifically for transformer winding and electrical conductor applications. Manufactured in fully annealed O-temper state, our aluminum foil range features pure alloys such as 1050, 1060, 1070, and 1350, delivering excellent electrical performance, superior flexibility, and outstanding thermal stability. This high-quality aluminium foil supports efficient current flow, reduces energy losses, and ensures long-lasting, reliable transformer operation in both dry-type and oil-immersed transformers across industrial, commercial, and utility sectors.
Product Description
Tata Steel Group’s Transformer Aluminum Foil is a high-purity electrical conductivity material engineered specifically for transformer winding and electrical conductor applications. Manufactured in fully annealed O-temper state, our aluminum foil range features pure alloys such as 1050, 1060, 1070, and 1350, delivering excellent electrical performance, superior flexibility, and outstanding thermal stability. This high-quality aluminium foil supports efficient current flow, reduces energy losses, and ensures long-lasting, reliable transformer operation in both dry-type and oil-immersed transformers across industrial, commercial, and utility sectors.
| Specification Item | Details |
| Product Name | Tata Steel Group Transformer Aluminum Foil |
| Alloy Grades | 1050, 1060, 1070, 1350 O-Temper |
| Temper / Condition | Fully Annealed O-State (soft, ideal for coiling) |
| Thickness Range | ~0.2 mm – 3.5 mm (varies by alloy) |
| Width Range | ~10 mm – 1600 mm (customized slit width available) |
| Length / Coil | Based on weight or application requirement* |
| Edge Type | Slit / Chamfered / Rounded (smooth burr-free edges) |
| Paper Core IDs | Ø150 mm, Ø300 mm, Ø400 mm, Ø500 mm or custom on request |
| Surface Condition | Smooth, mill finish, free from scratches or contamination |
| Tolerance | ±10 % (manufacturing flexibility) |
| Packaging | Coil packing on pallets, moisture-proof wrapping |
| Standard Compliance | Industry electrical and mechanical specifications |
*Actual length is often specified per order depending on application dimension and delivery packaging.
Tata Steel Group Transformer Aluminum Foil is widely used for:
Transformer winding & conductor material for dry-type, oil-immersed, instrument, and power transformers.
Electrical coils and high-conductivity electrical components requiring lightweight, high conductivity foil.
Performance Benefits:
✔ Excellent electrical and thermal conductivity
✔ Lightweight and flexible for tight-radius winding processes
✔ Superior insulation compatibility with transformer materials
✔ Low resistivity and enhanced reliability in electrical systems
✔ Environmentally friendly and energy-efficient material choices
These properties help improve transformer efficiency, reduce energy losses, and ensure long-term performance stability.
| Alloy Grade | Al Content (Min) | Electrical Conductivity (%IACS) |
| 1050 O | ≥99.5 % | >60 % |
| 1060 O | ≥99.6 % | >61.5 % |
| 1070 O | ≥99.7 % | >62.7 % |
| 1350 O | ≥99.5 % | ~62 % |
Higher purity alloys like 1070 and 1350 provide maximum conductivity for demanding electrical applications.
As a global leader in materials manufacturing, Tata Steel Group delivers transformer foil solutions with:
Precision specifications for critical electrical performance
Customizable widths and thicknesses per engineering requirements
Consistent quality control aligned with international standards
This transformer aluminum foil is engineered for durability, performance, and efficiency — ideal for electrical equipment manufacturers and OEM partners.
