Originally Posted by DerekB
Ti is stronger than steel, but it does tend to break as opposed to bending.
It is and it isn't, check this link out
http://homepages.which.net/~paul.hil...rialsBody.html
Ti can have a higher tensile strength but I doubt the grade used for screws for our cars is the best.
Ti again can have a higher yeild strength than steel but prob not the grade we get.
The big ones though are Youngs modulus (E) and Shear modulus, E is only half that of steel and the Shear modulus is not much more than half of steel.
What this means is that in a big impact a normal steel screw will just bend or stretch and a Ti screw is more likely to shear off or snap.