So, the weight of Chromoly Roll Cage tubing is. Roll cage tubing in chromo is 1.625" in diameter, and has a wall thickness of. So, the weight of Mild Steel Roll Cage tubing is. Roll cage tubing in MS is 1.625" in diameter, and has a wall thickness of. PI is a mathematical constant whose value is the ratio of any circle's circumference to its diameter I am going to abbreviate some of these down.Ī1= Area of tubing using the outside diameter (OD) of the tubing.Ī2=Area of tubing using the inside Diameter (ID) of the tubing. I figure I would need about 740" of tubing. I roughly measured out the tubing that would be needed to make a 12 point cage in the car. I went out the the garage and pulled the tarp back on my 1967 Plymouth Valiant that is currently playing the role of my spare shelf holding up old clothes, empty boxes, etc. Since today is Sunday, and I am bored, I figured I would nerd out, and do some math for fun. However I have never seen any actually calculations on it. So, We all know the Chromo cage will be lighter, and numbers are always thrown out as to what the weight savings is. SO, I ordered an Art Morrison Chromoly cage kit for the Aspen, which fit AWESOME, and came in a timely fashion.
The guy that caged my Aspen told me the MS cage would cost me at least the same as far as fabrication would go, but he prefered chromoly, because he prefers to TIG weld, over MIG welding.
As for the price, it depends on who build the cage for you. On another forum, the question of cost, and weight came up over a Chromoly rollcage vs.
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