Originally Posted by
let-r-eat
Not to pick on the guys above, but saying moly is more rigid is not really correct. All steel alloys have basically the same spring constant, or modulus of elasticity. The only advantage is simply a higher stress before yield occurs.
This comes in handy in areas such as the cage where strength is important. Otherwise, the rest of the chassis should be designed with rigidity in mind. If you replace mild steel with thinner wall moly, you may maintain or increase strength, but stiffness of the chassis was actually reduced.
Last edited by MasterSbilt_Racer; 08-13-2015 at 11:48 PM.
Like the modulus of elasticity of spring steel? That is a perfect example to explain the post I was making. Take a broken spring leaf and weld it together with mild steel. What happens?
I did use the word rigidity in the proper context. A mild steel filler on a moly tube is doing basically the same thing as it would on a leaf spring but on a much smaller scale.
Just clarifying my post.