ZHENGZHOU SINOCEAN INDUSTRIAL LIMITED  

Product Name: Welding Grade Calcined Bauxite for Welding Flux Model NO.: SNW-85 S: 0.02% P: 0.05% Al2O3: 85% Sio2: 8.0% Fe2o3: 2.0% TiO2: 4.0% +50mesh: 0 +60mesh: 3%Max +200mesh: 30% Trademark: Sinocean Transport Package: 1mt Jumbo Bag Specification: Al2O3: 85% Origin: China HS Code: 2606000000 Product Description Welding Grade BauxiteWelding grade bauxite has tight regulation on presence of sulfurand phosphorus which are detrimental to the weld. When present at high concentrations, they induce porosity and cracking, and at lower concentrations, they adversely affect the impact strength of the weld. And moisture for welding grade bauxite should not exceed 0.5% because the potential for any moisture present withthin the flux to reduce to hydrogent, if exposed to a welding arc, the molten weld pool absorbs the hydrogen and will induce brittleness into the weld.ApplicationWelding fluxes are a small but valuable market for calcined bauxite. Techniques for submerged arc welding require the use of a granular flux to shield the molten weld pool rom the atmosphere during the weld's application or pacement. Various proprietary compositions exist and in some cases calcined bauxite is incorportated into these formulations. Calcined bauxite may, in some instances, make up to 25% of the welding flux.SINOCEAN AvailableWeldingGrade BauxiteItem SNW85 SNW83 Al2O3(%) 85.0min 83.0min SiO2(%) 8.0max 9.0max Fe2O3(%) 1.8max 2.0max K2O(%) 0.5max 0.3max S(%) 0.02max 0.02max P(%)0.05max 0.05max Available powder size80mesh; 100mesh; 200mesh; 325mesh; or as customer's requirement.Package1MT Jumbo bagStandard exporting package for sea transportation or air deliverySpecial packing requirement is acceptable