Quote:
Originally Posted by frankh
Hmm...I found 2024-T3 more prone to cracking than 6061 T6...The latter is cheaper too.
The whole Zodiac I own was made from 6061 T6..If I make my extended range fuel tanks I will use 6061 T6
Yeah I know 2024 is Alclad but it makes very little difference in the real world from my experience.
Frank
|
...how you define higher grade....
But 2024-T3 has ---
25% higher yield strength
75% more tensile strength
and essentially equal elongation at 0.065 thickness
These are "real world" numbers.
...I say the numbers make the 2024-T3 "higher grade" and hence more expensive....
It should not crack while bending if you use the correct bend radius, which is about 3 times that of 6061-T6 - the penalty paid for higher strength properties.
Chart here for reference -
http://www.thesheetmetalshop.com/pdf...end_radius.pdf
But Van specified 6061-T6 for this application, so go with the plans and save some $$$...
However, just because the Zodiac was built with the weaker material, that is not a reccommendation to substitute where Vans specifies 2024-T3, even if it does bend "better"....
Higher grade?
It depends on...
Linear Mode
