Core Wire

The center strand of a stranded conductor, around which the outer strands are wrapped in spiral layers. Employed as core or foun­dation wire in certain types of wire rope construction. Drawn to various sizes and usually fully annealed for ordinary strand ropes, but for certain constructions a hard, high-carbon wire, finished to a specified tensile stress, is employed. Also, the wire used in the construction of sand cores placed in molds for the production of castings. This is a low-carbon steel wire, fully annealed at finished size and with a black annealed finish or cleaned and oiled.