model making); electrical engineering; handicrafts; mechanical engineering; decoration. Uses: hobby sector (e., g. Wholesale 3 Rolls 3 Styles Round Copper Craft Wire Bare copper wire is made of pure copper and serves as an excellent conductor of electricity and heat. Copper Wire Bare Without Varnish Uncoated Cu 99% Craft Wire Description Wire represents a thin and long-shaped, well-pliable metal with a circular cross-section. 0.25mm (30 AWG) Pure Copper Wiring (99.9% Copper - Cu) | The Crazy Wire Company copper wire non insulated 99.9% Dead Soft Copper Wire, 16 Gauge/ 1.3 mm Diameter, 127 Feet / 39m, 1 Pound Spool Pure Copper Wire, Jewelry Making Wire for Crafts, Christmas Wreaths Tree, Garland and Floral Flower Arrangements Bare copper wire is very stretchable, well formable and polishable. Copper wire without varnish perfectly conducts electric current and has a low resistance. Features: excellent corrosion resistance, good flexibility, excellent thermal conductivity, good workmanship and ductility, low temperature resistance, long service life , Density: 8., 92 g/cm³; electrical conductivity 58 · 106 S/m; thermal conductivity 401 W/(m · K); 5 Meter Craft Copper Wire 99.5% Pure Copper Wire Round Solid Uncoated Diameter 0.5mm To 3mm Copper Wire Uncoated Length tolerance +/- 2 mm; surface smooth (can contain handling or memory marks).