# Calculating steel round bar's max capacity to support?

## Main Question or Discussion Point

First off, I am new to this forum.. However I wanted
To find out if anyone would be able to help me calculate
How much a steel bar (2 in. In diameter, 5 ft. Lengthwise)
Would be able to hold up without bending?

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phinds
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First off, I am new to this forum.. However I wanted
To find out if anyone would be able to help me calculate
How much a steel bar (2 in. In diameter, 5 ft. Lengthwise)
Would be able to hold up without bending?
Uh ... do you think maybe it might matter what KIND of steel you are talking about? Do you think it might matter where the supports are and where the load is? Could you maybe be a little more vague in your problem statement?

Bystander and Baluncore
billy_joule
First off, I am new to this forum.. However I wanted
To find out if anyone would be able to help me calculate
How much a steel bar (2 in. In diameter, 5 ft. Lengthwise)
Would be able to hold up without bending?
Zero.

Even with no weight on the bar it's still bending under it's own weight.
The real question is, how much deflection is acceptable?

Sigh. This doesn't have to be hard.

Specify, specify, specify before asking anything.
• Sketch the arrangement (horizontal, vertical, something in between) and form a Free Body Diagram.
• Identify the end conditions (simple, pinned, cantilevered, whatever).