Copper Foil and Strip
Copper Strip for Transformers
C1100 copper strip for transformers, 0.2 to 3.0 mm thick and 50 to 1350 mm wide, on inner diameters of 300, 400 or 500 mm or customised.
Product Overview
C1100 copper strip for transformers, 0.2 to 3.0 mm thick and 50 to 1350 mm wide, on inner diameters of 300, 400 or 500 mm or customised. Copper content is 99% or higher, conductivity 99% IACS or better and tensile strength above 193 MPa. The material is oxygen-free electrolytic copper with oxygen content below 0.02% and purity of 99.95% or higher, and the product complies with IEC, BIS and ASTM standards.
Key benefits
Why Buyers Choose This Specification
Oxygen Below 0.02%
Oxygen in copper causes embrittlement when the strip is brazed or welded into a winding. Below 0.02% is what keeps joints sound.
IEC BIS and ASTM Compliance
Three standards bodies named rather than a general claim of international quality. For an exported transformer, the winding material's compliance is part of the certification.
99% IACS Conductivity
Near-pure copper conductivity, published, which is what lets winding losses be calculated at design stage.
Supported Through the Whole Life
Supply covers transformer manufacturing, assembly, maintenance and repair, so a rewind years later uses the same specification.
Application scenarios
Where It Is Used
- Foil winding for distribution transformers
- Low voltage windings in power transformers
- Transformer assembly and connection work
- Maintenance and repair rewinding
- Coil manufacture requiring wide strip
- Applications needing certified conductor material
Who it is for
The Buyers This Product Suits
Transformer Manufacturers
C1100 at 99% IACS with IEC, BIS and ASTM compliance is the specification a transformer design assumes.
Exporters Into Regulated Markets
IEC, BIS and ASTM compliance covers the major certification regimes for electrical equipment.
Repair and Rewind Shops
Support extends to maintenance and repairs, not just new manufacture.
Problems it solves
What It Fixes
Brittle Joints After Brazing
Oxygen-free electrolytic copper with oxygen below 0.02% avoids the hydrogen embrittlement that oxygen-bearing copper suffers.
Conductor Material Failing Certification
Compliance with IEC, BIS and ASTM standards is stated for this product.
Winding Losses Above Design
Conductivity of 99% IACS or better is published, so losses can be calculated rather than discovered.
Specifications
Published Figures For This Product
Every value below comes from our own product specification. Where a figure is not published we leave it out rather than estimating it.
| Alloy | C1100 |
|---|---|
| Material | Oxygen-free electrolytic copper |
| Oxygen Content | Below 0.02% |
| Purity | 99.95% or higher |
| Thickness | 0.2-3.0 mm |
| Width | 50-1350 mm |
| Inner Diameter | 300 / 400 / 500 mm or customised |
| Copper Content | 99% or higher |
| Conductivity | 99% IACS or better |
| Tensile Strength | Above 193 MPa |
| Standards | IEC, BIS, ASTM |
| Grade | Oxygen-free electrolytic copper |
Packing and documents
How It Ships And What Comes With It
Packing And Loading
Shipping volume for this item depends on the configuration and capacity you select, so no fixed container figure is published. Confirm the specification and the destination and a loading plan is issued with the quotation, rather than a figure we cannot support.
Documentation On File
- Power and Electrical Materials · Copper Foil and Strip Specification Sheet7.5 KB
- Catalogue · Full Product Catalogue154.0 KB
Sourcing And Inspection
This product is supplied through TrueGlow Imaging, working with manufacturing partners whose facilities are visited and verified rather than taken on trust. In-process quality control and delivery supervision are available so goods are inspected before the container is sealed. Certifications quoted on this page are those stated on the product specification and belong to that product range rather than to our trading entity, so ask for the certificate covering your specific item.
Handling guide
Getting It Right First Time
Step 1
Specify thickness and width against the coil design, within 0.2-3.0 mm and 50-1350 mm.
Step 2
Confirm the inner diameter against your winding mandrel.
Step 3
Request the material certificate showing oxygen content and purity.
Step 4
Keep strip clean and dry before winding, since surface oxide affects joint resistance.
Step 5
State the applicable standard, IEC, BIS or ASTM, on the purchase order.
Comparison
How It Compares In Our Range
Copper strip against aluminium foil for the same winding.
| Copper Strip C1100 | 99% IACS conductivity, tensile above 193 MPa, oxygen-free electrolytic copper. Smaller conductor section for the same current. |
|---|---|
| Aluminium Foil 1050/1060/1070 | 63% IACS conductivity, tensile above 74 MPa. Lighter and cheaper, at a larger conductor section. |
FAQ
Copper Strip for Transformers Questions
What alloy is supplied?
C1100, made from oxygen-free electrolytic copper.
What thickness and width range?
Thickness 0.2 to 3.0 mm and width 50 to 1350 mm.
What purity and oxygen content?
Purity of 99.95% or higher with oxygen content below 0.02%, and copper content of 99% or higher.
What conductivity and tensile strength?
Conductivity 99% IACS or better and tensile strength above 193 MPa.
Which standards does it comply with?
IEC, BIS and ASTM standards.
What inner diameters are available?
300, 400 and 500 mm, or customised.
Related products
Other Products Buyers Look At
Industries
Sectors That Use This Product
Power and Transformer Manufacturing
Winding conductor and core steel specified by conductivity and loss, not by weight.
Metal Fabrication and Machine Shops
Custom parts, tooling and the cranes that move them around the shop.
Warehousing and Heavy Industry
Lifting from 250 kg to 360 tons, indoors on a runway or outdoors on legs.
Further reading
Guides That Cover This Product
Copper or Aluminium for Transformer Windings
63% IACS against 99% IACS. With both figures published, the choice between aluminium and copper foil becomes arithmetic at design stage rather than a matter of preference.
Quote Copper Strip for Transformers
Send the capacity or size you need, the quantity and the destination, and we will confirm the configuration, the lead time and a loading plan.