... AC/DC 2. For pipeline steel3. Bascity: 1.84. It can be applied to multiple-layer welding, double-face single way ... welding, multi-wire and SAW in a narrow ... ) ≥375Mpa 490-660Mpa ≥22% ≥27/-40°CRemark1. Before welding, fluxes should be baked for two hours at 300-350 ... Removal of rust, oil, dirt, water, impurities, etc in welding-areas.