Electrolytic Tough Pitch Copper (ETP) C101 / CW004A is a commercially pure high conductivity grade of copper refined by electrolytic deposition which is then melted and oxidised to the “tough pitch” condition with a controlled low oxygen content. This is the most widely used of all the coppers because of its combination of electrical and thermal conductivity, corrosion resistance, workability and aesthetic beauty.C101 / CW004A is the normal grade for general electrical use as busbar, motor and transformer components, windings and many other current carrying applications. It is also very popular with architects for applications where the corrosion resistance is required for building applications. Over time the C101 will also develop the weathered copper, green patina, appearance that offers additional corrosion resistance and a desirable look.
Applications
The C101 / CW004A is mostly utilised for general electrical busbar, motor and transformer components, windings, electrical conductors, contacts, terminals and many other current carrying applications. Other uses include architectural metalwork, gutters, flashing, roofing, automotive and industrial radiators, together with chemical process equipment, vats, kettles and pans.
| Cu including Ag < 0.015%; O < 0.06% is permitted |
| Cu | Pb | O | Bi | Others |
| min 99.9 | max 0.005 | max 0.04 | max 0.0005 | total 0.03 |
Sheet – 0.2mm to 15mm Thick
| Mechanical Property | Value |
|---|---|
| Proof Stress | 50-340 MPa |
| Tensile Strength | 200-360 MPa |
| Elongation A50 mm | 50-5 % |
| Hardness Vickers | 40 to 110 HV |
Partial part type display:
