Stick electrode aws classification e6013 material carbon steel process stick welding smaw overall diameter 1 8 in overall length 14 in tensile strength minimum required 60 ksi tensile strength as welded 60 ksi yield strength minimum required 48 ksi yield strength as welded 48 ksi series e6013 weight 50 lb for material type carbon steel to carbon steel welding current designation ac dcen dcep for welding position flat horizontal overhead vertical-down vertical-up