Ok. So I'm losing my mind. I have the threaded bungs to weld into tubing. They are machined to fit into a 1 inch inside diameter tube. Everything i have found around here are either a little too big or little too small. After some searching, I decided I need DOM tubing, but what THICKNESS???!!!!??? These will be about a 4 ft ladder bars for a g***er style drag car. (57 chevy). I'm sure thicker would be stronger, but also don't want em to be 500 pounds each either! Any help would be very much appreciated. Thanks
1 1/4" x .120 wall If you're actually going to race it there should be published specs for what they need to be. Looks like S&W uses 1" x .156" 42" G***er Ladder Bar With Chromoly Rod Ends https://share.google/2vzWAqZz9jlFUDad0
I've seen them from .156 to over .2 Depends on who makes them and how they mount the heim joints. If they have welded bungs then around the .156 to .188, if they drill and tap the tube's then they are over .2 Me personally I like thick wall, what I've done in the past, it's been too long to remember numbers, but I "think" I started with .188, took the bungs and turned down the ends to tap fit into the tubes. I also drilled a hole all of the way thru the tubes at the bung ends. I chamfered the tube ends and the bungs. This way when the bungs were tapped into the tubes I had a nice "V" to fill with weld and a hole to plug weld thru the tube into the bung where it was inserted into the tube on 2 sides. Then I ran a tap thru it to clean and clear up any distortion caused from the plug welds. ....
From the guy who knows nothing, when it comes to most things, it's depends on the how and what, how you build them and what kind of abuse they'll see. You could error on the better safe than sorry side, or, you could trust the material until it fails in service? My how was they were pre built, and the what was to get it rolling with a rear end under it. That said, most charts will list an OD a wall thickness, ID and weight per foot.
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