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What is the typical composition of commercial ferroniobium?
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niobium processing
Four one-millimetre thick samples of niobium metal foil.
Commercial ferroniobium, which is typically produced through an aluminothermic process, generally consists of the following composition:
- Niobium: 62β69 percent
- Iron: 29β30 percent
- Silicon: 2 percent
- Aluminum: 1β3 percent1