Explanatory notes
… ilmenite (titaniferous iron ore). According to the process used, the metal may be obtained in compact form, as a powder … Ferro‑titanium and ferro‑silicon‑titanium (Chapter 72) are used in steel manufacture; the metal is also alloyed with … nickel, etc. Titanium is principally used in the aircraft industry, in shipbuilding, for making, e.g., vats, …