Ferroniobium : Niobium Iron Alloy, Having A Nickel Content Of 60 To 75% Obtaining : - Through Metalothermic Reduction Reactions (silicothermia Or Aluminotermia). Use : - Production Of Special Alloy And Anti-corrosive Alloys. Fenb 65 Material Specification : According To Sr Iso 5453/1996 Chemical Composition : Nb 60 ÷ 70%; Ta = 0.5% Max; Al = 1.0% Max; Si = 2.5% Max; Ti = 0.4% Max; C = 0.15% Max; P = 0.10% Max; S = 0.05% Max; Sn = 0.10% Max; Co = 0.05% Max. Granulation : 5 ÷ 50mm; 10 ÷ 50mm; (90% Min).