NBN EN 515 : 1993

Foreword
1 Scope
2 Definitions
2.1 Cold-working
2.2 Strain-hardening
2.3 Solution heat-treating
2.4 Ageing
2.5 Annealing
3 Basis of codification
4 Basic temper designations
4.1 F - As fabricated
4.2 O - Annealed
4.3 H - Strain-hardened
4.4 W - Solution heat-treated
4.5 T - Thermally treated to produce stable tempers
       other than F, O or H
5 Subdivisions of O (annealed) temper designations
5.1 O1 - High temperature annealed and slow cooled
5.2 O2 - Thermo-mechanically processed
5.3 O3 - Homogenized
6 Subdivisions of H (strain hardened) temper
       designations
6.1 First digit after H
6.2 Second digit after H
6.3 Third digit after H
6.4 Other digits after H
7 Subdivisions of T (thermally treated to produce
       tempers other than F, O or H) temper designations
7.1 First digit after T
7.2 Additional digits after T
7.3 Assigned additional digits for T tempers
7.3.1 Stress-relieved tempers
7.3.2 Numeral 2 as a second digit after T4 or T6
7.3.3 Variations of T7 type tempers
7.4 Recommendations for further T temper extensions
7.4.1 Numeral 1 as a second digit after T
7.4.2 Numerals 1 and 3 to 9 as a second digit after T3,
       T8 or T9
7.4.3 Numerals 1 and 3 to 5 as a second digit after T5
       or T6
7.4.4 Numeral 6 as a second digit after T5 or T6
7.4.5 Summary of possible uses of a second digit after
       T
8 Summary

Establishes temper designations for all forms of wrought aluminium and aluminium alloys and for continuously cast aluminium and aluminium alloy drawing stock and strip meant to be wrought. Includes detailed definitions.