Chromoly Roll Cage Wall Thickness

But you have to use larger sticks of tubing or more wall thickness and it costs you weight. Round 4130 chromoly steel tubing 1 63 o d. Chromoloy tubing is made from a family of low alloy steels that contain chromium and molybdenum sae 4130 or 4140 along with the iron carbon and other elements.

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All roll bars cages constructed of 4130 chromoly tubing must be welded using an approve tig heliarc process while mild steel must be done with an approved mig wire feed or tig heliarc process.

Chromoly roll cage wall thickness.

X 0 083 wall thickness sold in pre cut tube lenghts of 3 7 or 10 feet for use in roll cages race car chassis roll. Round tubing 3 4 x 058 chrome moly 8 foot length. The cage chassis are one in the same. The chromium adds strength hardenability and a level of corrosion resistance to mild carbon steel though chromoly is not as corrosion resistant as stainless steel.

Also while a chromoly cage is typically lighter due to its lower minimum wall thickness it can only be tig welded while mild steel can be tig or mig welded though the welds need to be clean complete without holes and show no signs of grinding. Round tubing 3 4 x 058 chrome moly steelsold in 8 foot lengths comments box at checkout. As pointed out above in the nhra regulations the minimum wall thickness on mild steel is more than that of chromoly to achieve the same result and. Yes nascar may use 95 wall tube but as i understand they require chromoly which is a whole different ball game than dom or hrew.

The cage we selected comes with. A nascar cage is built completely differently than an average offroad cage. You can make a cage out of mild steel dom tubing that is just as safe as a chromoly cage. Main hoop main hoop support bars door bars.