ROTFLMAO!! That is priceless Brett.

In the states for the most part. A36 yield and tensile strengths (36K) are no where near what Canada uses or at least Saskatchewan. Tubing and beam are most often called with a 50K yield and bars with 44K.

You ate all your kids popsicles to make that, didn't you?

Yes there is stronger steel out there but A36 is pretty common even here in Canada and you'll also have a hard time finding 1-1/4 in anything cold rolled, likely it will be hot rolled and at best A-36. Plus $20 says they have no idea what steel it is so for me to assume it's the strongest available would be pretty foolish. Anything you get from a local hardware store isn't anything special. Like I said before, without getting into too much detail that's what I came up with, take it for what it's worth to you.

its true brett it didnt there was a design flaw so they had to revamp the whole thing and after 3yrs of structural engineering they managed to come up with this :



http://t2.gstatic.com/images?q=tbn:A...uj03eHcqsFPDch

A36 is common in plate and bar stock but you'll be hard pressed to find it in HSS so no sense recommending it to a guy looking for HSS to build a tank stand. 44W (or the Canadian version 300W) is sometimes available and 50W (Canadian 350W) is also sold in HSS stock. I wish I had a dollar everytime an Engineer specified a material grade/shape combination that doesn't exist.

This technical jargen doesn't mean a roll of beans to our guy that's looking to build a stand. I think it's safe to say whatever grade he buys as long as it's plenty thick and sized right (Grizz had it right with the 1.5 or 2" x .188 HSS) and has it welded true and square by someone that is a decent welder, there will be no issues. I've seen so many stands that the welding looked like a bird crapped on it, and they held (God only knows how) so the key is not to Engineer it to the minimum, overbuild it so there's no chance of it falling apart.

Wasn't recommending anything, just trying to answer the question at hand, will it hold.... What material? You tell me.

Sorry, not trying to be an ass. You obviously know your material. We probably took the thread away from its original intent just a little.

I would say the easiest way to deal with the stand design dilemma is to find a good welder leave it up to him or her. Most capable structural welders know their stuff so there should be no need of getting too technical. It will probably be overbuilt but that's not a bad thing.

Its getting built from a buddys welding shop so only cost 80$ so im not to conserned about the money as its already cheap i think ill tell him to go 1 1/2 if they have that in stock or add some supports thanks for the input i knew it was going to be close glad I checked before i had a tidle wave tank for a few min as the tank its self is a bit of a gamble made out of 1/2 glass but has been reinforced and has held water for over a week now in the garage

Part of the issue is going to be rigidity too. If the stand is able to rack even a little, the strength of the vertical members will drop drastically. I've no engineering experience, but my gut would have me adding in more coulums, probably a couple more on each side, and possibly a cross brace to keep it stable.