|
Aluminum Temper and Alloys |
|
| Temper | Description |
| F | As fabricated, temper: For shaping process only. |
| O | Annealed, recrystalized: Softest temper for wrought. |
| H1 | Strain hardened only. |
| H2 | Strain hardened and then partially annealed. |
| H3 | Strain hardened and then stabilized. |
| W | Solution heat treated. |
| T2 | Annealed, cast only: improved ductility and stability. |
| T3 | Solution heat treated and then cold worked: Improved strength. |
| T4 | Solution heat treated and then naturally aged to a substantially stable condition. Not cold worked. |
| T5 | Artificially aged only. Rapid cool process like casting. |
| T6 | Solution heat treated and then artificially aged. Not cold worked after heat treated: Common class. |
| T7 | Solution heat treated and then stabilized: Good growth control and residual stress. |
| T8 | Solution heat treated, cold worked, and artificially aged. Cold worked to improve strength. |
| T9 | Solution heat treated, artificially aged, and cold worked to improve strength. |
| T10 | Artificially aged and then cold worked. Rapid cooling after heat treatment then cold worked for strength. |
| TX51 | Stress relieved by stretching. |
| TX52 | Stress relieved by compressing. |
| TX53 | Stress relieved by thermal treatment. |
| T42 | Wrought only, properties of T4. |
| T62 | Wrought only, properties of T6. |