Agglomerated, manganese-silicate type flux for welding general structural steels and pipe steels. Provides sound welds in steels containing low silicon and manganese. Especially suitable for fillet and groove welds in steel contructions, LPG cylinder, pressure vessel production, spirally welding of pipes. Suitable to use at high welding speeds with single and multi-wires. Possible to use both in alternative and direct currents. Good wetting properties blending into the base metal, very easy slag removal in fillet and V-grooves. Provides flat and nice weld profile without undercut.