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Topic Review (Newest First)
07-02-2012 09:06 PM
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.
07-02-2012 07:08 PM
dama417 Yup 2"X4" OD, you can get different wall thicknesses so the inside dimension can vary.
07-02-2012 06:34 PM
bobjenkins Yeah not like wood, so you dont have to worry about it
07-02-2012 05:34 PM
Ibuildembig x2 its not like wood.....thank God
07-02-2012 05:26 PM
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).
07-02-2012 12:26 PM
Meijin I'm gonna go out on a limb here, but I'm gonna go with 2"x4".
07-02-2012 12:16 PM
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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