Black annealed wire comes in the form of coil wire or cut wire. Going through the processing of annealing, the iron wire becomes soft and more flexible. Materials: Mild steel. Advantage: Excellent softness and flexibility compared with galvanized iron wire or plain iron wire. Application: Mostly used in construction or daily use as binding wire or wire ties. Sizes: Wire Gauge 8# to 22#. Packing of Annealed Wire: According to the customers?requirements.