how to determine steel strength formulas

by craigbrown18
Tags: determine, formulas, steel, strength
craigbrown18 is offline
Nov2-12, 09:40 AM
P: 1
not sure if I am in the right place or not but nevertheless need some help

I am trying to figure the correct steel to use for sign support.
I am trying to determine if a 5 x 5 inch with .25 wall is as strong or stronger than a 6 x inch tube with a 3/16 wall. Can't find any formulas to help me out.

Phys.Org News Partner Science news on
Lemurs match scent of a friend to sound of her voice
Repeated self-healing now possible in composite materials
'Heartbleed' fix may slow Web performance
jehake12 is offline
Nov2-12, 09:57 AM
P: 59
Check out the AISC Steel Construction Manual 14th edition.

It usually governs for steel design/capacities in the public works arena.
Mech_Engineer is offline
Nov2-12, 02:01 PM
Sci Advisor
PF Gold
Mech_Engineer's Avatar
P: 2,234
The evaluate the square tube vs. round tube made of the same material, you need to look at their second moment of area also (somewhat erroneously) known as the beam moment of inertia.

List of area moments of inertia:

adam150161 is offline
Nov11-12, 05:04 AM
P: 1

how to determine steel strength formulas

i am looking for materials with regard to design of steel plate
Mech_Engineer is offline
Nov12-12, 11:44 AM
Sci Advisor
PF Gold
Mech_Engineer's Avatar
P: 2,234
You will need to be a lot more specific if you want a useful response.

Register to reply

Related Discussions
Steel pole strength Materials & Chemical Engineering 19
Strength of 4x4 steel tubing? Mechanical Engineering 15
Help: How to Determine Steel I-Beam Load Strength (temporary support beams/column) General Engineering 1
Determine the thickness of steel plate (based on S275 steel) General Engineering 10
Where to find formulas for acceleration of compressed steel tubes... General Engineering 1