Originally Posted by
WiseEvilEmu
Okay so 853 is a decent bit heavier than 631 then
What?
853 and 631 have the same density. A 1cm*1cm*1cm block of 853 weighs the same as the same sized block of 631.
853 has a higher UTS. It is stronger. The 853 tube can be made thinner and still have the same strength as a similar 631 tube.