prep. stainless tubing
by Johnny
(Marianna,Fl. USA)
Can I get a little advise on how I should prep. stainless tubing for a aircraft exhaust assembly?
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pay attention to getting a good fit
back purge all welds
if it is new stainless and clean, no real surface prep is required.
321 and 347 are the most commonly used stainless for aircraft tubing and are usually welded with 347 filler
snip the end of the wire every time it gets oxidized
use as large a gas lens cup as practical
stop every inch and let cool
good luck
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