On Sun, 17 May 2009 17:36:54 -0500, "Karl Townsend"
wrote:

"The Kid" is on a rolling layoff, so I'm hiring him to do the fabrication on
my 6' by 10' plasma cutter. We're building a water tank 16" high by 6' by
10'. Our question, how thick a steel do we need to prevent the water
pressure from severely deforming the tank. The main issue is, of course, the
bottom and it would be no big deal to put in a reinforcing angle iron every
two feet.

"The Kid" thinks 0.070" or 14 gauge should be enough. I'm leaning toward
0.100" or 11guage to be sure. Any way to know?

Second question, if we weld every inch of every seam it will warp for sure.
I'd like to just stitch weld it and then use some sort of sealer/filler to
prevent leaks. What would work here?


..125 minimum thickness. 1/8th inch. Frankly..Id go to 3/16th inch. or
even .250...1/4"

Shrug...your choice.

If it was only 8" deep..Id say 1/8", with some cross members.

But you are asking Sheet Metal to hold 200 gallons of water.

Shrug

Gunner



Karl


"Somewhere a True Believer is training to kill you. He is training with
minimum food or water,in austere conditions, day and night. The only thing
clean on him is his weapon. He doesn't worry about what workout to do---
his rucksack weighs what it weighs, and he runs until the enemy stops chasing him.
The True Believer doesn't care 'how hard it is'; he knows he either wins or he dies.
He doesn't go home at 1700; he is home. He knows only the 'Cause.' Now, who wants to quit?"

NCOIC of the Special Forces Assessment and Selection Course in a welcome speech to new SF candidates