However, when it comes to fatigue (which I assume, you are referring to fracture strain) titanium has a significant edge. The fracture strain for steel is roughly 15%, but for titanium alloys, it often reaches and exceeds 50%.

I don't say this to contradict you, but to point out that as with most things in life, "it depends".

Source: https://www.ulbrich.com/blog/titanium-versus-steel-a-battle-....