Chromoly Roll Cage Wall Thickness

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. A nascar cage is built completely differently than an average offroad cage. 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.

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You can make a cage out of mild steel dom tubing that is just as safe as a chromoly cage.

Chromoly roll cage wall thickness.

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. Round tubing 3 4 x 058 chrome moly 8 foot length. Round tubing 3 4 x 058 chrome moly steelsold in 8 foot lengths comments box at checkout. 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 4130 chromoly steel tubing 1 63 o d. 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. 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. 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 chassis are one in the same. Main hoop main hoop support bars door bars. But you have to use larger sticks of tubing or more wall thickness and it costs you weight. The cage we selected comes with.