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Thu Oct 25, 2007 8:29 am

What kind of steel tubing should i use for sandrail frame?

Thu Oct 25, 2007 10:46 am

It really depends on how you are going to build it and what your budget is.

I say 1.5" .120 wall mild steel tubing should be pretty good for most applications.

You can get DOM tubing which is stronger & more expensive
Or Chromolly tubing which is stronger and more expensive yet.
And I think 4130 is stronger that chromolly and more expensive too...

Thu Oct 25, 2007 10:59 am

To keep costs as low as possible and still be sure you are safe, I'de use DOM for the cage around the people, and mild steel everywhere else.

Thu Oct 25, 2007 11:30 am

What does DOM stand for/mean?

Thu Oct 25, 2007 12:50 pm

Drawn On Mandrell-There is no seam on one side like the HREW(Hot Rolled Electrically Welded) tubing.

Thu Oct 25, 2007 4:23 pm

Mild steel either 1.5" or 1.625 with about .120 wall thickness will be sufficient and the most cost effective.

Fri Oct 26, 2007 12:15 am

Thanks for the help i went with 1.5 and .120 now i can start bending and welding

Fri Oct 26, 2007 2:19 am

The 1.5 inch .120 is a good choice for your buggy

rickosuave1987 wrote: Drawn On Mandrell-There is no seam on one side like the HREW(Hot Rolled Electrically Welded) tubing.

DOM is welded but drawn over a mandrel and is a lot tighter dimension than rolled & welded tube. Seamless tube is an extrusion with no seam. And lastly 4130 is a chromemolly alloy .

some more info on metal
http://www.thesamba.com/vw/forum/viewtopic.php?t=200053

Sun Mar 14, 2010 8:54 am

DOM is welded but drawn over a mandrel and is a lot tighter dimension than rolled & welded tube. Seamless tube is an extrusion with no seam. And lastly 4130 is a chromemolly alloy .

DOM can be welded or seamless. It just means it was drawn over a mandrel in a draw bench. The company I work for cold draws (DOM) both seamless and welded tubing. Seamless tubing is not extruded, but pierced on a rolling mill. We also pierce 4130 and cold draw it making it DOM.