Intro

 

Designations Definition
T     Thermally treated to achieve properties
  T2   Annealed
  T3   Solution heat treated and cold worked
  T4   Solution heat treated
  T5 Artificially aged only
T6 Solution heat treated, artificially aged
T7 Solution heat treated, stabilized
T8 Solution heat treated, cold worked, artificially aged
T9 Solution heat treated, artificially aged, cold worked
T10 Artificially aged, cold worked

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