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Application filed by Norsk Hydro AsfiledCriticalNorsk Hydro As
Priority to NZ513171ApriorityCriticalpatent/NZ513171A/en
Priority claimed from PCT/EP1999/000940external-prioritypatent/WO2000047793A1/en
Publication of NZ513171ApublicationCriticalpatent/NZ513171A/en
A heat treatable Al-Mg-Si aluminium alloy which after shaping has been submitted to an ageing process, wherein the ageing after cooling of the extruded product is performed in a first stage in which the extrusion is heated with a heating rate above 30 DEG C/hour to a temperature between 100 - 170 DEG C, a second stage in which the extrusion is heated with a heating rate between 5 and 50 DEG C/hour to the final hold temperature between 160 and 220 DEG C and in that the total ageing cycle is performed in a time between 3 and 24 hours.
NZ513171A1999-02-121999-02-12Aluminium alloy containing magnesium and silicon
NZ513171A
(en)