I'm building a welding cart and I'm trying to come up with ideas how to put the gas cylindar on the cart. The cart has 2 shelves to put stuff, a top and bottom.....so I'm putting the welder on top and maybe the gas cylindar on the bottom at an angle. I know having acetylene at any angle besides straight up is a big no-no....but I was wondering if an Argon/Co2 mix would be ok mounted like a nitrous bottle?

The card I have has room on the back for the gas bottle.

You do not want to have it on an angle due to the possibility if breaking off the regulator.

If you store the bottle off the cart it must be chained to the wall to prevent fall over