|
Message
Hi Rusty,
There is a very good reason for
using 4130 and NOT stainless.
Of course 4130 is always ready to get brittle but you can take care
of that by rosebudding your welds. And 4130 has the best strenght to
weight ratio of all metals.
However,Stainless is a very very soft metal. So you know what will
happen if you hook it up to something that vibrates. HTH. Larry Mac
Donald lm4@juno.comRochester N.Y. Do
not archive
Greetings,
As I ponder my choices
for mounting the single rotor engine, I noticed something that surprised
me. 304 stainless is cheaper than 4130 steel. One thing that's
always bothered me about steel tube type construction is the concern for
rusting inside the tubes, so stainless is appealing. There must be a
catch here.
Is there a good reason I
should use 4130 instead of 304? Either will likely be sized much larger
than needed, since I don't have the means to do any proper analysis of the
strength.
Thanks,
Rusty (Autoflight drive
supposed to be shipping next week)
|