Abstract: A method of producing an aluminium alloy brazing sheet for the manufacturing of light brazed assemblies, wherein said brazing sheet has good formability, combined with a low susceptibility to core penetration in the end annealed as-produced condition after stretching, forming and/or shaping and brazing are disclosed. Assemblies made according to the method are also disclosed.

Abstract: Disclosed is a process for producing an Al—Mn alloy sheet with improved liquid film migration resistance when used as core alloy in brazing sheet, including the steps of: casting an ingot having a composition comprising (in weight percent): 0.5<Mn?1.7, 0.06<Cu?1.5, Si?1.3, Mg?0.25, Ti<0.2, Zn?2.0, Fe?0.5, at least one element of the group of elements of 0.05<Zr?0.25 and 0.05<Cr?0.25; other elements <0.05 each and total <0.20, balance Al; homogenisation and preheat; hot rolling; cold rolling (including intermediate anneals whenever required), and wherein the homogenisation temperature is at least 450° C. for a duration of at least 1 hour followed by an air cooling at a rate of at least 20° C./h and wherein the pre-heat temperature is at least 400° C. for at least 0.5 hour.

Abstract: The invention relates to an aluminium brazing alloy, ideally suitable as fin stock material, having a composition, in weight %: Si 0.7-1.2, Mn 0.7-1.2, Mg up to 0.35, Fe up to 0.8, Zn up to 3.0, Ni up to 0.005, Cu up to 0.5, optionally one or more members selected from the group comprising Ti up to 0.20, In up to 0.20, Zr up to 0.25, V up to 0.25, and Cr up to 0.25, others up to 0.05 each and up to 0.15 in total, and an Al balance.

Abstract: The invention relates to an aluminium brazing alloy, ideally suitable as fin stock material, having the composition, in weight %: Si 0.4-1.0, Mn 0.7-1.2, Mg up to 0.10, Fe up to 0.8, Zn up to 3.0, Ni 0.5-0.9, Cu up to 0.15, optionally one or more selected from the group consisting of Ti up to 0.20, In up to 0.20, Zr up to 0.25, V up to 0.25 and Cr up to 0.25, other elements up to 0.05 each, up to 0.15 in total, Al balance.

Abstract: The invention relates to an aluminium brazing alloy, ideally suitable as fin stock material, having a composition, in weight %: Si 0.7-1.2, Mn 0.7-1.2, Mg up to 0.35, Fe up to 0.8, Zn up to 3.0, Ni up to 0.005, Cu up to 0.5, optionally one or more members selected from the group comprising Ti up to 0.20, In up to 0.20, Zr up to 0.25, V up to 0.25, and Cr up to 0.25, others up to 0.05 each and up to 0.15 in total, and an Al balance.

Abstract: The invention relates to an aluminium brazing alloy, ideally suitable as fin stock material, having the composition, in weight %: Si 0.4-1.0, Mn 0.7-1.2, Mg up to 0.10, Fe up to 0.8, Zn up to 3.0, Ni 0.5-0.9, Cu up to 0.15, optionally one or more selected from the group consisting of Ti up to 0.20, In up to 0.20, Zr up to 0.25, V up to 0.25 and Cr up to 0.25, other elements up to 0.05 each, up to 0.15 in total, Al balance.

Abstract: An aluminum alloy composite material includes a higher strength aluminum alloy core material layer and at least one cladding aluminum alloy material layer having a higher electrical conductivity than the core material. The cladding layer is positioned adjacent to the core and the composite is adapted for particular application in heat exchangers where brazing is conducted under controlled atmospheres with special flux materials. The core material has an electrical conductivity less than 50% IACS and the cladding layer has an electrical conductivity greater than 50% IACS. The cladding layer can be on one or both surfaces of the core layer. The thickness of the cladding layer can range between about 2.5 and 40% of the overall composite thickness depending on whether one or more cladding layers are employed. The cladding layer also has a corrosion potential more negative than the core layer for enhanced corrosion resistance.