... Used to weld low carbon steel structures, especially suitable for welding thin flat, intermittent shorter welds, as well as some smooth ... 040Reference Current Diameter(mm)2.53.24.05.0Current90120120150170200210250Note:Before welding, it is necessary to clean the work piece and remove ... used DC, the electrode must be connected with positive polarity. High Quality H08A Carbon Welding Electrodes Supplier