Safe tortion load 2X2 square tubing

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A user is designing a crane to load a handicap scooter onto a pickup, requiring a 36-inch beam secured at one end and free at the other, with a static load of 150 pounds and a maximum torsion moment of 500 foot-pounds. They are considering using 2"X2"X3/16" square steel tubing for the beam. Robert Kisko confirms that this tubing size appears adequate for the specified application. The discussion also inquires about the availability of tables listing safe torsion loads for steel tubing. Overall, the proposed design seems structurally sound for the intended use.
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I want to build a crane to load my handicap scooter on my pickup. In my design I need a 36 inch beam, fastened at one end, free at the other. The beam will be loaded at the free end with 150 pounds of static weight, and it will also have a maximum moment of 500 foot-pounds tortion at the free end. I would like to use square steel tubing for the beam. Will
2"X2"X3/16" tubing be adequate?

Are there tables available that list the safe tortion loads of steel tubing?
 
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Robert Kisko: Your square tube listed in post 1 appears adequate for the stated application.
 
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