Tempers

Tempers

When the profile comes out of the press, it can undergo various cooling processes. These processes can give the profile different levels of strength and flexibility.

 

 

Tempers

Description

 

T4

 

solution heat-treated and naturally aged

 

T5

 

cooled from an elevated temperature shaping process and then artificially aged

 

T6

 

solution heat-treated and then artificially aged

 

T6510

 

solution heat-treated, stress-relieved by stretching a controlled amount (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 then artificially aged. The products receive no further straightening after stretching

 

T6511

 

same as T6510 except that minor straightening is allowed after stretching to comply with standard tolerances

 

T52

 

cooled from an elevated temperature shaping process, stress-relieved by stretching and then artificially aged