... : 4mm ~ 0.8mm Tensile Strength: 500~980 N/mm2 Black iron wire, also called black wire or Annealed Wire, soft annealed wire, annealed ... for weaving wire mesh. We can produce two kinds of black iron wire, one is hard drawn wire, another is soft annealed ... used as tie wire or binding wire in construction. The Black annealed iron wire can also know as the Soft Anneal ...