If it's yield strength, a more accurate ordering may be
Tin, Copper, Gold, Iron, Bronze, Titanium, Steel, Titanium Alloy
(comes from MPa yeild strengths quoted on a variety of websites,
often by Googling something like "yield strength gold")
For all of the alloys, the answer is a bit imprecise because it
depends on the exact composition and manufacturing process.
For instance, there are SOME specialty steels that are stronger
than most titanium alloys.
To answer your 2nd question, some elements that go into
titanium alloys are aluminum, zirconium, molybdenum, and bismuth.
Chem section posting seems OK; could've also used "engineering"