CW004A, also known as Cu-ETP (Electrolytic Tough Pitch Copper), is a high-purity, oxygen-free copper with excellent electrical conductivity. This alloy is one of the highest-grade materials in the category of non-ferrous metals and is primarily used in the electrical and electronics industry. With its combination of outstanding conductivity, high corrosion resistance, and excellent mechanical properties, CW004A is the optimal choice for demanding applications.

Key Properties of CW004A (Cu-ETP)

Exceptional Electrical Conductivity
With a conductivity of up to 58 MS/m (IACS ≥ 100%), CW004A is the first choice for electrical wires, contacts, and connectors.

High Thermal Conductivity
The alloy offers excellent thermal conductivity, making it ideal for thermally demanding applications.

Corrosion Resistance
CW004A is resistant to environmental influences and oxidizes very little, even under prolonged exposure.

Excellent Formability
Thanks to its good cold and hot forming properties, the alloy can be easily processed into complex components.

High Purity
With a copper content of ≥ 99.90%, CW004A guarantees maximum material quality and reliability.

Technical Specifications and Composition

Material Number: CW004A
Standard Designation: Cu-ETP (Electrolytic Tough Pitch Copper)
Copper Content: ≥ 99.90%
Conductivity: IACS ≥ 100% (electrical conductivity up to 58 MS/m)
Strength: High tensile and yield strength
Forms: Plates, rods, wires, and foils; custom cuts available upon request
Surface Finishes: Smooth, polished, or tinned

Application Areas of CW004A (Cu-ETP)

Electrical and Electronics Engineering

CW004A is used for cables, wires, busbars, and switch contacts where maximum conductivity is essential.

Automotive Industry

Used in high-performance cables, battery connectors, and electrical control systems of modern vehicles.

Construction Industry

Used in lightning protection systems and grounding installations due to its reliable corrosion resistance.

Telecommunications

Ideal for printed circuit boards, high-frequency cables, and signal transmission elements.

Conclusion

CW004A (Cu-ETP) is the perfect choice for applications requiring maximum electrical and thermal conductivity. Its purity, ease of processing, and durability make the alloy highly versatile and suitable for top-level industrial demands. Whether in electrical engineering, power technology, or the automotive industry – CW004A ensures reliable performance and long-lasting quality.

Frequently Asked Questions (FAQ) – CW004A (Cu-ETP)

1. What is CW004A (Cu-ETP)?

CW004A is a high-purity electrolytic copper with exceptional electrical and thermal conductivity.

2. Where is CW004A mainly used?

The alloy is used in electrical engineering, energy technology, the automotive industry, and the communication and construction sectors.

3. What forms are available for CW004A?

CW004A is available as plates, rods, wires, and foils. Custom cuts can be made to order.

4. Why is CW004A so conductive?

Its high copper content of ≥ 99.90% ensures a conductivity of IACS ≥ 100%, making CW004A one of the most efficient materials available.

5. Is CW004A corrosion-resistant?

Yes, the alloy is highly resistant to environmental influences and shows minimal oxidation.