1060 vs 1070 vs 1350 Aluminum Strip for Transformer

2026-04-29

1060, 1070 and 1350 aluminum strips are commonly used in transformer and electrical conductor applications. For transformer manufacturers, selecting the right aluminum grade is important because it affects conductivity, winding performance, cost and final transformer reliability.

Although these grades all belong to high-purity aluminum materials, they are not exactly the same. Each grade has its own characteristics and suitable applications.

This article explains the differences between 1060, 1070 and 1350 aluminum strip for transformer use.

Why Aluminum Grade Matters for Transformer Strip

Transformer aluminum strip is used as a conductor material. Therefore, aluminum purity and conductivity are important performance factors.

The aluminum grade can affect:

• Electrical conductivity

• Mechanical properties

• Formability

• Surface performance

• Cost

• Application suitability

• Compliance with customer standards

Choosing the correct grade helps ensure that the material matches transformer design requirements.

What Is 1060 Aluminum Strip?

1060 aluminum strip is a high-purity aluminum material with good conductivity and excellent formability. It is one of the most widely used aluminum grades for transformer winding.

Main Features of 1060 Aluminum Strip

• Good electrical conductivity

• Good ductility

• Easy to process

• Good surface quality

• Cost-effective

• Suitable for general transformer winding

1060 aluminum strip is often selected when customers need stable quality, good winding performance and reasonable cost.

Typical Applications

• Transformer winding

• Electrical conductor components

• Distribution transformers

• Dry-type transformers

• Oil-immersed transformers

What Is 1070 Aluminum Strip?

1070 aluminum strip has higher aluminum purity than 1060. Because of its higher purity, it can provide better electrical conductivity.

Main Features of 1070 Aluminum Strip

• Higher aluminum purity

• Better conductivity than 1060

• Good formability

• Suitable for electrical applications

• Smooth surface performance

1070 aluminum strip is often used when transformer manufacturers require higher conductivity or higher purity aluminum material.

Typical Applications

• Transformer winding

• Electrical conductor strip

• High-conductivity aluminum applications

• Power equipment components

What Is 1350 Aluminum Strip?

1350 aluminum is commonly used as an electrical-grade aluminum material. It is widely applied in power transmission, electrical conductor and transformer-related applications.

Main Features of 1350 Aluminum Strip

• Electrical-grade aluminum

• Good conductivity

• Suitable for conductor applications

• Stable electrical performance

• Good processability

1350 aluminum strip is often selected according to specific electrical industry standards or customer technical requirements.

Typical Applications

• Transformer winding

• Electrical conductor materials

• Power equipment

• Busbar and conductor-related applications

Comparison Table: 1060 vs 1070 vs 1350

Conductivity Comparison

Conductivity is one of the key differences among these grades.

In general:

• 1070 aluminum strip usually has better conductivity than 1060.

• 1350 aluminum is widely used in electrical conductor applications.

• 1060 provides good conductivity and is widely accepted for transformer winding.

However, actual conductivity should be confirmed according to material certificates and customer requirements.

Formability and Winding Performance

For transformer winding, formability is very important. Aluminum strip should be able to bend and wind smoothly without cracking or serious deformation.

O temper aluminum strip usually offers better ductility and winding performance.

All three grades can be used for winding applications, but the final performance also depends on:

• Temper

• Thickness

• Edge quality

• Surface condition

• Coil condition

• Production process

How to Choose the Right Grade

Choose 1060 aluminum strip if:

• You need a common and cost-effective material

• Good conductivity is acceptable

• General transformer winding is required

• Stable supply is important

Choose 1070 aluminum strip if:

• Higher purity is required

• Better conductivity is needed

• The transformer design requires higher electrical performance

Choose 1350 aluminum strip if:

• Electrical-grade aluminum is specified

• The application follows electrical conductor requirements

• Customer standards require 1350 aluminum

Quality Control Suggestions

No matter which aluminum grade is selected, quality control is critical.

Important inspection items include:

• Chemical composition

• Conductivity

• Thickness tolerance

• Width tolerance

• Surface quality

• Edge burr

• Mechanical properties

• Coil condition

• Packaging condition

For transformer winding, edge quality should receive special attention. Deburred or round edge can help protect insulation materials during winding.

1060, 1070 and 1350 aluminum strips are all used in transformer and electrical applications.

1060 aluminum strip is widely used because of its good conductivity, formability and cost-effectiveness. 1070 aluminum strip offers higher purity and better conductivity. 1350 aluminum strip is commonly selected for electrical conductor applications.

The best grade should be selected according to transformer design, conductivity requirements, customer standards and budget.