MT 301 is silicon calcium neutral sintered flux allklinity is 1.0,gray spherical particles,granularity is 10- ... 60mesh MT 301 is silicon calcium neutral sintered flux allklinity is 1.0,gray spherical particles,granularity is 10 ... ,vessels,bridges,oilcans,ships and so on.COMPOSITION OF THE FLUX(% SiO2+TiO2 CaO+MgO Al2O2+MnO CaF2 S P AlkalinityStandard ...