OK. I will try this again.
I have no idea if Titanium will work, I don’t care.
This alloy was probably made for some specific purpose. Almost ALL modern alloys are. Such as Gun Metal is a specific Bronze alloy used in cannon.
There are steel alloys used in firearms, modern ones, that have been in use since the 1930s at least, found mostly through trial and error when high pressure propellants came into use. But they work perfectly for the purpose.
I would think that a properly hardened carbon steel, something over 50 points of carbon will make as good a frizzen as could be wanted. Unfortunately many modern cast frizzens are made of “mystery metal” and some, from various makers, will not spark sufficiently until faced with plain high carbon steel. All protestations by the seller to the contrary not withstanding. They, and they know this, are held hostage by the foundry. If the foundry has a ladle that has been used for an alloy with Chrome and/or Moly and the pot is not CLEANED before casting then the steel is “contaminated” and the frizzen may well be $#@*. This is why when steel is made for a specific alloy of higher quality it has to be made in a clean ladle since anything in the ladle can produce steel that is not the specific alloy or meet the inclusion level required by the spec.
So we get frizzens that won’t spark until faced. A guild member even called a lock maker about this. The lock maker was adamant that the frizzens were plain high carbon. So like me he faced the thing to fix it. Its a running joke. I don’t think Titanium is the answer.