... steel wire,which are the largest usage of submerged arc welding wire Application:1. mineral machineries, engineer machineries, ships, ... bridges, pressure vessels, building construstion2. welding of other 501 Mpa level carbon steel and low alloy ... Yield strength Rel or Rp0.2(MPa)Elongation ratio (%)415-550≥ 330≥22 Package:1. 25kg~300kg fine round package2. ...