aluminum heat treatment

[yasseremam]

badly need to know the artificial aging temperature and aging period of aluminum 6063-t6 and 6063-t5

 

[CoryPad]

ASTM B918 Standard Practice for Heat Treatment of Wrought Aluminum Alloys shows:

T5: 400 degrees F for 1-2 hours or 360 degrees F for 3 hours

T6: 360 degrees F for 6 hours or 350 degrees F for 8 hours

 

[yasseremam]

THANKS FOR REPLY
the problem was that i work in an aluminum extruder as a mechanical maintenance engineer and i had a problem with the aging oven. Bearings and shafts inside get damaged before planned maintenance time and while following up i found that they perform aging process at 360F for 6 hours for (T5) temper.i think it's too long time and for t5 temper and it may be the cause for excessive thermal stress on bearings inside....
any comments on that???

 

[CoryPad]

The 6 hours at 360 degrees F may have resulted in slight overaging, but may still meet the requirements. You will need to test to determine that. I don't understand the relationship between the part being heat treated and your furnace bearings to offer any comment on that.

 

[yasseremam]

surely i will make a test,thank you.