Butt and flat fillet welding of buildings, bridges and API Line-pipe (Longitudinal)

It provides good bead appearance, better slag removal and high impact value of the weld metal.
It is relatively insenitive to rust and dirt on a base metal, and makes better resistance to pockmark and pit.
High impact values in both multi-run and two-run technique.
As the consumption of flux is low, it is very economical.

① Dry the flux at 300~350℃(572~662°F ) for 60 minutes before use.
② When the flux height is excessive, poor bead appearance may occur.
③ Use welding current and speed as low as possible at the first layer of groove to avoid cracking.