T o d d P a t t i s t wrote:
"mhorowit" wrote:

I'm looking at my tubing catalog and see 3/4"(.750) having a wall
thickness of .028 and an ID of .694. Now .694 + .028 = .722. I seem to
have lost .028 somewhere!

Anyone have an insight?

0.75" tubing has two walls of thickness 0.028" and one ID of
0.694" inside one OD of .750"

Well for the sake of either pedantry or jocularity I'll point out
that it only has ONE wall of thickness 0.028".

The Outside Diameter of the tubing crosses that wall twice.


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FF