Chromoly Vs Mild Steel Chassis

It will still save your life if done right.

Chromoly vs mild steel chassis.

In today s chassis it is common to find mild steel erw tubes high strength steels hss such as dom and 4130 chrome moly chromoly and advanced high strength steels ahss like docol tube r8. If anyone has a viable answer please let me know. One of the never ending topics of conversation is the use of 4130 steel over mild steel in professional drag racing builds. I have a dragster frame and i don t know what it is made of.

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. When cost is a factor as for most of us mild steel is a good choice. So if you run a comp buggy 4130 is the way to go. In a trail rig like mine i will be using mild steel and a mig.

In this short video tim mcamis explains some of the differences between 4130 chromoly and mild steel tubing for use in drag race chassis construction. Aluminum is the second most commonly used material for bicycle manufacturing. If it is mild steel then i have to rebuild the whole thing. It s lighter and stiffer than steel but it s also more brittle and easily damaged.

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. Chromoly is slightly heavier than aluminum but the frame can be thinner and has reduced stiffness which provides a smoother ride.