Heat-Treated Subdivisions

T1 Cooled from an elevated process temperature and aged (natural aging) at ambient temperature to a substantially stable condition. [Pg.494]

T3 Solution heat treated, cold worked, and naturally aged to a substantially stable condition. Solution heat treatment involves heating the product to an elevated temperature, usually in the 932-1022T (500-550°C) range. At this temperature, the alloy becomes a single-phase solid solution that is cooled rapidly (quenched) so that a second phase does not form. This is [Pg.494]

T5 Cooled from an elevated-temperature forming process and artificially aged (holding for a specific time a temperature above the ambient temperature). [Pg.495]