The nominal Brinell hardness for Aluminium Al6082-T6 is 95Hb. What is the tolerance on the hardness? Is the there a hardness limit beyond which the material cannot be accepted as Al6082-T6?
Nominal values for mech properties are for information only. They are not to be used for design or acceptance/rejectance of material. Consequently, you must have a spec with a hardness range, such as an AMS, if you will be accepting material based on hardness.