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Ferroniobium is a ferroalloy containing about 60% Nb (or Nb + Ta), 10-12.5% Si, 2-6% Al, 3-8% Ti (the rest is Fe and impurities ); melted in an electric furnace aluminothermic method from pyrochlore concentrate or technical niobium pentoxide. Ferroniobium is used in the smelting of structural steel and heat-resistant alloys.
Alloying alloy of iron and niobium (the sum of niobium and tantalum). Ferroniobium is introduced into stainless chromium-nickel steels to prevent their intergranular corrosion and destruction and into other types of steel to improve their properties.
| Brand | Tantalum+niobium | Tantalum | Silicon | Aluminium | Titan | Carbon | Sulphur | Phosphorus |
| FeNb60 | 55-65 | 1 | 1.5 | 3 | 1 | 0.1 | 0.03 | 0.1 |
| FeNb58 | 50-65 | 1 | 2 | 6 | 1 | 0.2 | 0.03 | 0.15 |
| FeNb58f | 50-65 | 2 | 6 | 2 | 0.3 | 0.05 | 0.4 | |
| FeNb55S | 50-65 | 15 | 4 | 8 | 0.2 | 0.03 | 0.3 | |
| FeNb50S | 40-65 | 20 | 6 | 0.5 | 0.05 | 0.5 |
| Marks (ISO 5453:1980) | Nb | Ta | Al | Si | Ti | C | S | P | Sn | Co |
| no more | ||||||||||
| FeNb65 | 60.0-70.0 | up to 0.5 | 1.0 | 2.5 | 0.4 | 0.15 | 0.05 | 0.10 | 0.10 | 0.05 |
| FeNb60Ta1Al3 | 55.0-70.0 | up to 2.0 | 3.0 | 4.0 | 2.5 | 0.25 | 0.10 | 0.10 | 0.30 | - |
| FeNb60Ta1Al3.5 | 55.0-70.0 | up to 2.0 | 3.5 | 4.0 | 2.5 | 0.15 | 0.05 | 0.15 | 0.10 | - |
| FeNb60Ta1Al6 | 55.0-70.0 | up to 2.0 | 6.0 | 4.0 | 2.5 | 0.20 | 0.10 | 0.20 | 0.15 | - |
| FeNb60Ta5Al2 | 55.0-70.0 | 2.0-8.0 | 2.0 | 2.5 | 2.5 | 0.25 | 0.10 | 0.10 | 0.20 | - |
| FeNb60Ta5Al6 | 55.0-70.0 | 2.0-8.0 | 6.0 | 4.0 | 2.5 | 0.20 | 0.10 | 0.20 | 0.15 | - |
| FeNb60Ta5Al6Sn | 55.0-70.0 | 2.0-8.0 | 6.0 | 4.0 | 2.5 | 0.20 | 0.05 | 0.20 | 3.00 | - |
Used for the production of electrode coatings, in the steelmaking and foundry industries.
ГОСТ 16773-85 (167 Кб)| НБУ на завтра | ||
| USD | 39,427 | |
| EUR | 42,755 | |
| RUB | 0,433 | |
| Обмен на 17.05.2024 | ||
| USD | 39,324 | 39,884 |
| EUR | 42,635 | 43,346 |
| RUB | 41,400 | 44,400 |
| Межбанк на 17.05.2024 | ||
| USD | 39,390 | 39,425 |
| EUR | 33,350 | 33,410 |
| RUB | 0,366 | 0,367 |
Котировки LME на 2023-12-12 | |||
| Алюминий |  | 2117 | -17 |
| Медь | | 8341 | -107.5 |
| Свинец |  | 2057 | 31.5 |
| Никель | | 16607 | -199 |
| Олово | | 24359 | -208 |
| Цинк | | 2407 | 7.5 |