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    4. how much weight can a 3 by 3 inches box steel beam (14ft 6 in long) take before it bends at the centre
    how much weight can a 3 by 3 inches box steel beam (14ft 6 in long) take before it bends at the centre

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    0  Views: 844 Answers: 2 Posted: 12 years ago
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      depends on the tensil strenght of the steel

      12 years ago. Rating: 2
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        If you are describing a steel  tube, square or rectangle, it doesn't have much strength and it doesn't flex like a wide flange beam.  When it bends it stays bent.  A 3x3x 5/16 wall box at 14'  !MY GUESS! would be 350# and it can't include impact or bounce action.

        12 years ago. Rating: 2
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