... is 10-60 mesh;it shows good welding performances:stable arc, fine appearance of weld,slag easy ... e.g.H10Mn2,etc,it is used for welding steel structures,such as boilers,pressure vessels, ... and so on.ยท ATTENTION : a.Before welding,the welding flux should be baked at the temperature from ... Before welding,the weld metal must be cleared away impurities,such as rust,oil,moisture etc. SUBMERGED-ARC WELDING FLUX ...