Did any surface warship use titanium, or was it confined to submarines?
Short answerTitanium was mainly a submarine material because it was too expensive and difficult to use widely in surface-warship construction.
NotesThe answer distinguishes theoretical interest in titanium from practical shipbuilding. Plans and ideas existed for broader use, but cost and manufacturing difficulty made ordinary surface-warship construction unattractive. Titanium therefore remained chiefly a submarine material in this account. Its technical promise did not remove the fabrication and price problems facing wider naval use.