Square Tubing Burst Strength
Square Tubing Burst Strength
(OP)
I am looking for the burst strength (psi) for 3" Square 304SS welded tubing with a wall thickness of .125 or .250.
Thank You in advance for any information you might provide.
Thank You in advance for any information you might provide.





RE: Square Tubing Burst Strength
You can calculate bending stress in the walls by treating the four sides as fixed-end beams (and add on tensile stress from beams on either side). Before the tubing actually burst, it would most likely round out pretty well, and you could get an idea of pressure required by calculating radius of a round tube with the same circumference, then figuring pressure required to reach ultimate tensile strength. The burst pressure could be reduced considerably depending on the weld quality.
RE: Square Tubing Burst Strength
RE: Square Tubing Burst Strength
A 3" round corned square with these walls probably can't be treated as a round for estimation purposes. (a 3.75" od x 0.120" wall should have a burst of 5ksi). There will be a lot of deformation and local thinning as this trys to go round from the pressure.
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Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: Square Tubing Burst Strength
I'm curious...what are you looking to do?