plated steel wire for PWS is superior torsional characteristics in mass %,, C: 0.8 to 1.1 % Si: 0.8 to 1.3%, Mn: 0.3 to 0.8%, N: 0.001 to 0.006%, B: 0.0004 to 0.0060% , and containing , and also employs B is 0.0002% or more, and Al: 0.005 to 0.1, Ti: 0.005 contain one or two species of 0.1 %, and the balance being made of Fe and inevitable impurities , in a portion from the surface layer to a depth of 50 and the area ratio of the non- pearlite structure is 10% or less , in the entire section the area ratio of the non- pearlite structure is 5% or less , the coating weight on the surface is carried out from 300 to 500 g / of zinc plating . ; coated steel wire , torsion characteristics , non- pearlite structure
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