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Old 07-02-2012, 11:16 AM   #1
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2" x 4" Actual Tube Size

Can anyone tell me what the actual measured/nominal size is of 2"x 4" rectangular tubing????

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Old 07-02-2012, 11:26 AM   #2
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I'm gonna go out on a limb here, but I'm gonna go with 2"x4".

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Old 07-02-2012, 04:26 PM   #3
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Originally Posted by Meijin View Post
I'm gonna go out on a limb here, but I'm gonna go with 2"x4".
DING-DING-DING! We have a winner!

Tubing size isn't "nominal", it actually represents the measured outside dimension(s).
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Old 07-02-2012, 04:34 PM   #4
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x2 its not like wood.....thank God
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Old 07-02-2012, 05:34 PM   #5
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Yeah not like wood, so you dont have to worry about it
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Old 07-02-2012, 06:08 PM   #6
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Yup 2"X4" OD, you can get different wall thicknesses so the inside dimension can vary.
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Old 07-02-2012, 08:06 PM   #7
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as a rule any rectangular tubing wider than 3" is structural tubing. Structural tubing conforms to astm a500 grade b. An electric resistance welded tube produced from a structural grade of steel. Offers a high strength-to-weight ratio, yet is easily welded, formed, punched, and drilled. All sizes have the od flash removed, with the id flash-in. Minimum mechanical properties: Tensile strength = 58,000 psi, yield strength = 46,000 psi, % elongation in 2" = 23%

tubing 3" and smaller is mechanical tubing and conforms to astm a513 type 1 (awhr) or type 2 (awcr). Mechanical tubing is an electric resistance welded tubing produced from low carbon steel. Offers good surface finish and forming characteristics. All sizes have the od flash removed, with the id flash-in. Generally available in wall thickness lighter than 11ga.

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