An excellent all-position, cellulosic mild steel electrode needed for a strong, dependable , X-ray quality weld. It delivers the arc stability and drive you need for the best penetration position; plus, it is ideal for vertical-down welding, single-or multi-pass, on 5L, 5LX, and X-52 through X-65 pipes. Has a quick start and quick clean-up with a light slag that's easy to remove.