best transformer winding aluminium strips

Best Transformer Winding Aluminium Strips: The Complete Guide

If you want to find best transformer winding aluminium strips for your new project — on the one hand, it’s nice to have variety while searching for a new aluminum materials, but on the other, it makes finding the best aluminium strips for your transformer winding needs relatively tricky.

With high conductivity, good corrosion resistance and beautiful appearance, transformer aluminum strips are essential materials in the process of producing transformers. That’s why finding the best transformer winding aluminium strips is so important.

In this post, we discuss some of the most quality aluminum strips for transformers winding and offer tips on how to choose the right one for your transformer winding needs.

Let’s keep reading.

The 1050 O aluminum strip for transformer winding is the most commonly used material in transformers manufacturing industries.

The reason why it can be widely used in transformers is related to its excellent properties.

1050 O aluminum strip has high electrical conductivity and thermal conductivity. In the actual application process of transformers, 1050 O aluminum strips are often used as support materials to form transformer windings, which can reduce the loss of transformers and improve the performance of transformers.

The thickness of the 1050 O aluminum strip in a transformer is generally between 0.1 mm and 1 mm. It adopts a single-layer or double-layer structure, which can effectively reduce the leakage magnetic field of the coil and improve its insulation performance.

The transformer 1050 O aluminum strip is a kind of connecting material for winding coils, which is wound on the coil in a certain way to form a specific inductance, mutual inductance or distributed capacitance. In addition to this kind of connection material, there are other forms of connection between coil turns, such as soldering connections and welding connections.

transformer 1050 o aluminium foils strips for transformers winding

Best Transformer Winding Aluminium Strips: 1060 Grade

1060 O aluminum strip for transformer winding, the content is 99.6%, mainly used for some high and low voltage electrical equipment, such as various transformers winding. The common state is O state, so it is also called aluminum strip for transformer winding.

The aluminum strip in the electrical equipment industry has very high requirements on its performance, which requires the flexibility of the aluminum belt to be good enough.

This requires that the 1060 O aluminum strip for transformer winding has a very high elongation. In addition, it should have a good crack resistance and uniformity.

1060 O aluminum strip for transformer winding is mainly made of 1 series pure aluminum strip product, tensile strength can reach more than 135Mpa, elongation is up to 15%, the finished product has good electrical conductivity, thermal conductivity and corrosion resistance.

1060 O aluminum alloy has high plasticity, corrosion resistance, electrical conductivity and thermal conductivity. But they have lower strength than other alloys.

1060 O aluminum strip has high plasticity at annealed state and hardening phenomenon in semi cold hardening, good corrosion resistance, good weldability, poor machinability, but with extrusion and stretch forming high performance. The electrical conductivity of 1060 O strip is above 61.5%IACS. The density is 2.7 g/cm3.

transformer 1060 o aluminum foils strips for transformers winding

Best Transformer Winding Aluminium Strips: 1070 Grade

The 1070 O aluminum strip for transformer winding has the advantages of high conductivity, good corrosion resistance, high thermal conductivity and large extension ratio.

The annealing state of 1070 strip is O.

The 1070 O aluminum strip for transformer winding can be used to make dry-type transformers, oil-immersed transformers and reactor windings.

The 1070 O aluminum strip for transformer winding has a density of 2.7 g/cm3 and the tensile strength is 60-95 MPa, which can meet the strength requirement of aluminum strip transformer winding.

The elongation is 25-30%, which can meet the elongation requirement of aluminum transformer winding. The electrical conductivity is above 62.7%IACS.

The 1070 O aluminum strip for transformer winding has good heat dissipation and does not increase the temperature rise of the coil during long-term operation, thus prolonging the service life of the coil. The use of 1070 O aluminum strip for transformer winding can reduce the mass manufacturing cost of transformers by 15%.

Advantages of 1070 O aluminum strip for transformer winding:

1. Good plasticity after annealing;

2. Easy to process and weld;

3. Excellent corrosion resistance;

4. High conductivity and thermal conductivity;

5. Low strength;

6. Good elongation (≥25%) and other characteristics.

transformer 1070 o aluminium foils strips for transformers winding

Best Transformer Winding Aluminium Strips: 1350 Grade

1350 O aluminum strip for transformer winding is widely used in the transformer industry, such as oil-immersed transformers and dry-type transformers.

The 1350 O aluminum strip for transformer winding can be divided into two types: bare and coated.

The bare type is mainly used as the winding material of oil-immersed transformers, and the coated type is mainly used as the interlayer insulation material.

Features of 1350 O aluminum strip for transformer winding:

1. Aluminium strip 1350 has excellent elongation and tensile strength, suitable for winding forming;

2. Good plasticity, uniform thickness, no burr after stamping;

3. Excellent electrical conductivity and thermal conductivity properties;

4. Good corrosion resistance and weldability;

5. Smooth surface quality, low pinhole degree;

6. High temperature resistance, can withstand the test of high temperature 130℃.

transformer 1350 o aluminium foils strips for transformers winding

What Should Beginners Pay Attention to When Purchasing Best Aluminium Strips From China

1.Transformer Winding Aluminium Strips Standard

The aluminum strips standards can be of the GB/T, ASTM, JIS, etc.

Usually the ASTM is the common standard in global market. If you come from Japan, you should consider to JIS standard to order your aluminum strips cargo.

All our best aluminum strips and coils are manufactured in compliance with the ASTM and GB/T standards.

2.Transformer Winding Aluminium Strips Grade

Temper O Aluminum Strips For Transformer Winding Chemical Composition(%)

Element

Al

Si

Fe

Mg

Zn

Mn

Ti

Cu

V

1050

≥99.5

0.0431

0.203

0.0013

0.0093

0.0104

0.02

0.0022

0.0039

1060

≥99.6

0.0431

0.203

0.0013

0.0093

0.0104

0.02

0.0022

0.0039

1070

≥99.7

0.0431

0.203

0.0013

0.0093

0.0104

0.02

0.0022

0.0039

1350

≥99.5

0.0431

0.203

0.0013

0.0093

0.0104

0.02

0.0022

0.0039

3.Transformer Winding Aluminium Strips Electrical Conductivity

GB/T

ASTM

Electrical Conductivity/%IACS

Electrical Resistivity/Ώ mm2/m

1050

1050

≥60.0 %

≤ 0.02825

1060

1060

≥61.5 %

≤ 0.02825

1070

1070

≥62.7 %

≤ 0.02825

1350

1350

≥62.0 %

≤ 0.02825

4.Transformer Winding Aluminium Strips Thickness

Aluminium strips for transformers winding thickness(0.2mm to 3.5mm) can be produced as customers requests.

When you purchase it from China, you should let supplier know which thickness you need.

5.Transformer Winding Aluminium Strips Width

Aluminium strips for transformers winding width(10mm to 1600mm) can be produced as customers requests.

When you purchase it from China, you should let supplier know which width you need.

6.Transformer Winding Aluminium Strips Inner Diameter

best transformer winding aluminium strips inner diameter data

Coil inner diameter of aluminium strips can be divided into many types such as 150mm, 200mm, 300mm, 400mm, 500mm, etc.

According to customer’s plant equipment core diameter, choosing the right coil inner diameter of each strip.

7.Transformer Winding Aluminium Strips Processing Properties

GB/T

ASTM

Tensile Strength Rm
(N/mm²)

Temper (Annealed)

Elongation(%)

1050

1050

60-95

O

≥25

1060

1060

60-95

O

≥25

1070

1070

60-95

O

≥25

1350

1350

60-95

O

≥25

8.Transformer Winding Aluminium Strips Edge

aluminium foils strips for transformers winding edges

Aluminium strips for transformers winding edge will be deburred, round or can be produced as customers requests.

When you purchase it from China, you should let supplier know which edge you need.

9.Transformer Winding Aluminium Strips Packaging Types

aluminum foils strips for transformers packaging standards

The packing for aluminum foils strips for transformers is mainly about wooden pallet and wooden box.

Aluminum foil length of each roll should be same, packaging mark should have clear and complete information.

  • Wooden Pallet: Standard export package, no fumigation; Pallet size: 1.1m x 1.1m x 0.8m; Gross weight: 1 Ton; 4 pallets/20′ FCL; 8 pallets/40′ FCL Or as per customer’s requirements.
  • Wooden Box: The standard export package with fumigation certificate, it can avoid any potential damage during the transportation.

Conclusion

aluminium strips for transformers winding edge will be deburred, round or can be produced as customers requests.

When you purchase it from China, you should let supplier know which edge you need.

Now that you have viewed all guides of best aluminium foils strips for transformers winding, it’s time to start shopping for the right one for your project.

Transformer aluminum strips are available in a wide range of sizes, inner cores, and materials grades. Be sure to choose the right one that you need.

When in doubt, always seek the help from an expert. HZW team has tremendous experience in the transformer winding strip industry and is always here to help you with your needs.

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