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Old 10-22-2010, 09:36 AM   #1
MONTEZ
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Need tubing measurements.

Can anyone tell me the actual external demensions of 2x3x1/4 tube stock? I'm trying to sketch something, but don't have a piece to measure. Also if you know what the corner radii are that would be great!
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Old 10-22-2010, 12:24 PM   #2
chevy_mike
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Re: Need tubing measurements.

Unlike lumber dimensions, metal tube is the actual outside dimensions. 2"x3" would be the outside. 1/4" thick metal, that would affect the inside dimensions. It would be 1.5"x2.5". Sorry, no help on the corner radius.
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Old 10-29-2010, 12:01 AM   #3
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Re: Need tubing measurements.

Typically the radius of the outside cornere of square or rectangular tubing is 1/2 the wall thickness. So for .250 wall tube the outside radius would be .125. I don't know if this is an actual steel spec, this is just what I have observed over the past 30+ years of fabrication.
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Old 10-29-2010, 03:19 AM   #4
dwcsr
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Re: Need tubing measurements.

I've gotten 2x3 with tight sharp corners and rounded wide corners, I think it depends on the country it milled in.
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Old 10-29-2010, 04:13 PM   #5
MONTEZ
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Re: Need tubing measurements.

I ended up going with a .1875 Radius and it worked out well.

Too bad I changed my mind and am designing another setup now
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