HF-SJ501 Classifications Standard GB/ T12470-90 F5A0-H08A Accord with AWS F7AZ-EL8 General Characteristics HF-SJ501 is an agglomerated type acid flux(B.I.: 0.5~0.8) composed mainly of aluminum and oxides with grain sizes of 2.0-0.28mm (10-60 meshes). It can be used with AC/DC. It provides good welding usability, easy slag removal, excellent anti-porosity property and beautiful bead appearance. Applications In combination with H08A(EL8) or H08MnA(EM12), it is suitable for welding of gas cylinders, membrane water-cooled wall of boilers, etc. Typical Chemical Compositions of the Flux (%) SiO2+MnO Al2O3+ TiO2 CaF2 Others 20-30 45-60 ﹤15 10 Mechanical Properties of all Weld Metal Test Item ?s Mpa ?b Mpa δ5 % AKV(J) 0℃ Guaranteed Value ≥400 480-650 ≥22 ≥34 Test Value 448 602 24.1 44, 45, 40 Notes 1. Fluxes to be baked for two hours at 300-350℃ before using; 2. Removal of rust, oil, dirt, water, impurities etc in welding-areas.