Roll cage question chromoly vs mild steel.
Roll cage chromoly or mild steel.
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.
I know that the cm is lighter than mild steel of the same diameter but harder to.
The tubing size requirement on 8 50 cages are 1 5 8 inch x 118 inch mild steel or 083 inch chromoly.
They said it was about 40 lbs.
X 118 mild steel or 083 4130 chromoly tubing so this is another aspect to take into play when building or expanding a roll cage as your vehicle gets faster.
If it is mild steel then i have to rebuild the whole thing.
Crome molly i have mild steel in my own car and all the dragsters are 4130 molly.
I bought a mild steel 10 point cage from s w racecars.
As for the price it depends on who build the cage for you.
A quick guide to what.
If the budget allows it and there is time cline always prefers to tig weld a cage.
For 10 second and slower cars that only need roll bars the size minimum is 1 3 4 o d.
The only real reason to use chromoly in this application is a weight savings.
The guy that caged my aspen told me the civic eg roll cage uk tube by tube.
A mild steel roll cage.
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.
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I thought i wanted a chromoly cage for a weight savings but now thinking about mild steel.
If it s chromoly then i just have to replace a couple of struts and add more to my roll cage to bring it to specs.
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.
Write or wrong thinking.
Had i to do it over again i would still go with mild steel.
Cage mild steel vs.
It s nice but not the nicest i ve seen.
I m cutting out our 8 point 1 3 4 roll bar out of the 80 camaro.
The dragsters usually have to be backhalved after so many laps.
This would be in a 2nd about bolt in cages weld in cages roll on another forum the question of cost and weight came up over a chromoly rollcage vs.
I have a dragster frame and i don t know what it is made of.
I need to put in a 8 50 cert.
I asked wolfe racecraft what the weight difference was between a 10 point mild steel cage and a 10 point chromoly cage.
That s not alot in my opinion.
If anyone has a viable answer please let me know.
Grinding and plating of the welds is prohibited so keep these points in mind if you re a do it yourselfer.
