Copper coils are copper wire produced as long blanks with a round or rectangular cross-section. They look like copper wire and have a low cross-sectional area to total length ratio.
Properties:
- high electrical conductivity;
- corrosion resistance;
- ductility and strength.
Types: Wire can be:
- pure copper or plated with tin, nickel, or silver. For example, copper-nickel wire is resistant to low and high temperatures (up to 750 degrees Celsius), corrosion, and oxidation.
- insulated (PVC, enamel) — used in coils and other devices where a protective layer is needed.
- hard or soft — wire can be hard, with minimal flexibility, or soft, more ductile and suitable for bending and fine work.
