Accademia La Maison de la Danse Srld Italy

If steel and titanium are both equal in strength, then aluminum is half the strength. When you get into the 7000 series

of aluminum they get to about two thirds the strength of titanium. The problem is that the ductility of aluminum is less than steel. This is what comes into play

when designing parts, especially the axles and some bolts, like cylinder head bolts, the stretchiness becomes an issue with

titanium. And the technical term for that is modulus of elasticity. That's why a when looking at a titanium spring, it

has less coils in it. With the modulus number of titanium being half of steel it's going to flex twice as much for the

same amount of load.