| Temper |
Definition |
| F |
As fabricated (no mechanical property limits specified). |
| 0 |
Annealed - products achieving the
required annealed properties after hot forming processes may be
designated as O temper. |
| 01 |
Thermally treated at approximately the
same time and temperature required for solution treatment and slow
cooled to room temperature (formerly designated as T41).. |
| 02 |
Thermomechanically processed to enhance
formability, such as required for super-plastic forming (SPF). |
| 03 |
Homogenized. |
| H12 |
Strain-hardened - 1/4 hard. |
| H14 |
Strain-hardened - 1/2 hard. |
| H16 |
Strain-hardened - 3/4 hard. |
| H18 |
Strain-hardened - 4/4 hard (fully
hardened). |
| H19 |
Strain-hardened - extra hard. |
| Hxx4 |
Applies to embossed or patterned sheet
or strip, fabricated from the corresponding Hxx temper. |
| Hxx5 |
Strain-hardened - applies to welded
tubes. |
| H111 |
Annealed and slightly strain-hardened (less
than H11) during subsequent operations such as stretching or levelling. |
| H112 |
Slightly strain-hardened from working
at an elevated temperature from a limited amount of cold work (mechanical
property limits specified). |
| H116 |
Applies to aluminium-magnesium alloys with a magnesium content of 4% or
more and for which mechanical property limits and exfoliation corrosion
resistance are specified. |
| H22 |
Strain-hardened and partially annealed
- 1/4 hard. |
| H24 |
Strain-hardened and partially annealed
- 1/2 hard. |
| H26 |
Strain-hardened and partially annealed
- 3/4 hard. |
| H28 |
Strain-hardened and partially annealed - 4/4 hard (fully hardened). |
| H32 |
Strain-hardened and stabilized - 1/4
hard. |
| H34 |
Strain-hardened and stabilized - 1/2
hard. |
| H36 |
Strain-hardened and stabilized - 3/4
hard. |
| H38 |
Strain-hardened and stabilized - 4/4 hard (fully hardened). |
| H42 |
Strain-hardened and painted or
lacquered - 1/4 hard. |
| H44 |
Strain-hardened and painted or
lacquered - 1/2 hard. |
| H46 |
Strain-hardened and painted or
lacquered - 3/4 hard. |
| H48 |
Strain-hardened and painted or lacquered - 4/4 hard (fully hardened). |
| W |
Solution heat-treated (unstable temper).
The period of natural ageing (W2h..) may also be specified. |
| W51 |
Solution heat-treated (unstable temper)
and stress-relieved by controlled stretching (permanent set 0.5% to 3%
for sheet, 1.5% to 3% for plate, 1% to 3% for hand or ring forging and
rolled ring). The products receive no further straightening after
stretching. |
| W510 |
Solution heat-treated (unstable temper)
and stress-relieved by controlled stretching (permanent set 1% to 3% for
extruted rod, bar, shapes and tube, 0.5% to 3% for drawn tube). The
products receive no further straightening after stretching. |
| W511 |
Same as W510 except minor straightening
is allowed after stretching to comply with standard tolerances. |
| W52 |
Solution heat-treated (unstable temper)
and stress-relieved by compressing to produce a permanent set of 1- 5%. |
| W54 |
Solution heat-treated (unstable temper) and stress-relieved by
restriking cold in the finish die (die forging). |
| T1 |
Cooled from an elevated temperature shaping process and naturally aged. |
| T2 |
Cooled from an elevated temperature shaping process, cold worked and
naturally aged. |
| T3 |
Solution heat-treated, cold worked and
naturally aged. |
| T31 |
Solution heat-treated, cold worked
approximately 1% and naturally aged. |
| T351 |
Solution heat-treated, stress-relieved
by controlled stretching (permanent set 0.5% to 3% for sheet, 1.5% to 3%
for plate, 1% to 3% for rolled or cold-finished rod and bar, 1% to 5%
for hand or ring forging and rolled ring) and naturally aged. The
products receive no further straightening after |
| T3510 |
Solution heat-treated, stress-relieved
by controlled stretching (permanent set 1% to 3% for extruded rod, bar,
shapes and tube, 0.5% to 3% for drawn tube) and naturally aged. The
products receive no further straightening after stretching. |
| T3511 |
Same as T3510 except that minor
straightening is allowed after stretching to comply with standard
tolerances. |
| T354 |
Solution heat-treated stress-relieved
by restriking cold in the finish die and naturally aged. |
| T36 |
Solution heat-treated, cold worked
approximately 6% and naturally aged. |
| T37 |
Solution heat-treated, cold worked
approximately 7% and naturally aged. |
| T39 |
Solution heat-treated and cold worked to an appropriate degree to
achieve the specified mechanical properties. Cold work may be carried
out before or after natural ageing. |
| T4 |
Solution heat-treated and naturally
aged. |
| T42 |
Solution heat-treated and naturally
aged. Applies to test material heat-treated from annealed or F temper or
to products heat-treated from any temper by the user. |
| T451 |
Solution heat-treated, stress-relieved
by controlled stretching (permanent set 0.5% to 3% for sheet, 1.5% to 3%
for plate, 1% to 3% for rolled or cold-finished rod and bar, 1% to 5%
for hand or ring forging and rolled ring) and naturally aged. The
products receive no further straightening after stretching. |
| T4510 |
Solution heat-treated, stress-relieved
by controlled stretching (permanent set 1% to 3% for extruded rod, bar
shapes and tube, 0.5% to 3% for drawn tube) and naturally aged. The
products receive no further straightening after stretching. |
| T4511 |
Same as T4510 except that minor
straightening is allowed after stretching to comply with standard
tolerances. |
| T452 |
