Backing run
The first run is root run
The third run is root run
The second run is root run
Row electrode
Bare electrode
Base electrode
Deep penetration electrode
Length of electrode
Thickness of flux coated
Diameter (over all) of electrode
Diameter of inner core wire
250 mm and 350 mm
350 mm and 450 mm
400 mm and 500 mm
500mm and 600mm
Fine
Medium
Course
Rough