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.