Nothing wrong with aluminum if used correctly, but it has a very small "endurance strength."
Steel and other materials enjoy a load limit under which they will not fail under repeated loading cycles -- Aluminum does not. Aluminum will *always* eventually fail. Good background: https://en.wikipedia.org/wiki/Fatigue_limit On Mon, Jan 06, 2020 at 09:32:08AM -0500, Adam Moffett wrote: > .....because it's light, not because it's strong. > > Aluminum flexes. Structural steel has bounce too, but aluminum a > lot more so. It'll flex enough that climbers will comment on how > much it moves. Presumably it's safe if you stay within the load > it's rated for, but the next scary thing is the rated load is going > to be lower than steel, and it's very easy for someone to come along > and add load without checking that. > > Not saying aluminum is inherently bad, but you have to know it's > limitations. > > -Adam > > > On 1/6/2020 9:24 AM, Matt Hoppes wrote: > >Do you fly in aircraft? They are made of aluminum. > > > >On Jan 6, 2020, at 9:20 AM, Josh Luthman > ><j...@imaginenetworksllc.com <mailto:j...@imaginenetworksllc.com>> > >wrote: > > > >>Aluminum...no thanks. > >> > >>Josh Luthman > >>Office: 937-552-2340 > >>Direct: 937-552-2343 > >>1100 Wayne St > >>Suite 1337 > >>Troy, OH 45373 > >> > >> > >>On Fri, Jan 3, 2020 at 2:30 PM Matt Hoppes > >><mattli...@rivervalleyinternet.net > >><mailto:mattli...@rivervalleyinternet.net>> wrote: > >> > >> Has anyone heard of this company before? > >> > >> http://www.heightstowers.com/home.html > >> > >> A customer suggested them for use for a low windloading situation. > >> > >> I've never heard of them. > >> > >> -- AF mailing list > >> AF@af.afmug.com <mailto:AF@af.afmug.com> > >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com > >> > >>-- > >>AF mailing list > >>AF@af.afmug.com <mailto:AF@af.afmug.com> > >>http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
