E6010

C-10 For Root Run Pipeline Welding on DCEP Only Class of: AWS A5.1 AWS A5.1 E6010 DESCRIPTION C-10 is a high cellulose type electrode for welding in all position, deep penetration welding, including vertical downward position. It has good ductility and x-ray quality. APPLICATIONS Suitable for welding steel Grade( s) A, AH27S using deep penetration. Typical application include cross-country pipelines, on-site mild steel storage tanks, galvanized plates, boilers, root runs for heavy equipment and building structures. INSTRUCTIONS 1.Use DCEP current for full penetration root runs. 2.Maintain a short to medium arc. Hold electrode perpendicular to work surfaces and slightly inclines in direction of travel, keeping size of molten pool small. Clean each bead well before applying the next. 3.Vertical welding can be done starting from the top or the bottom, as the work requires. In overhead welding best results are obtained by multipass welding. 4.Electrodes that have become damp should be re-dried at 90º C for 30 minutes. TYPICAL CHEMICAL COMPOSITION OF WELD METAL ( % ) C Mn Si S P Cr Ni Mo V Fe 0.1 0.6 0.2 0.03 0.02 0.04 0.05 0.02 0.01 Bal. TYPICAL MECHANICAL PROPERTIES OF WELD METAL Yield Strength Tensile Strength Elongation Charpy Impact Value 450 N/ mm² 45.9 kgf/ mm² 580 N/ mm² 59.2 kgf/ mm² 30% at -30° C 50 J 5.1 kgf· m RECOMMENDED CURRENTS ( DCEP Only) Size( mm) Diameter 2.6 3.2 4.0 Length 350 350 400 Current Range ( Amp.) 70~ 90 80 ~ 120 120 ~ 150