About Black Iron Wire

Tengyuan can produce two kinds of Black iron wire for customers, one is black hard drawn wire, another is soft annealed wire.

Black hard drawn wire is is formed via the process of wire-drawing, coiling, and anti-rust oil spraying. The black drawn wire is more economic compared with annealed wire, it is a kind of hard drawn carbon steel wire, which is a suitable material of iron nail, wire mesh, craftwork, and so on. Besides black drawn wireis also used in construction or daily use as binding material.

Soft annealed wire is obtained by means of thermal annealing. It is made of black hard drawn wire. black annealed wire is produced through the following steps: 1, wire-drawing, 2, anneal, 3, coiling 4, anti-rust oil spraying. Meantime black annealed wire can processed into coil wire, spool wire, big package wire or further straightened and cut into cut wire or U type wire. Black Annealed Wire offers excellent flexibility and softness through the process of oxygen free annealing. It is widely used as tie wire or baling wire in construction and daily binding.