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ENG
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)|
Котировки LME
на 2025-10-17
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| Алюминий |  |
2788.5 | 42.5 |
| Медь | |
10647 | 6 |
| Свинец |  |
1965.5 | -17 |
| Никель | |
15267 | 73 |
| Олово | |
35772 | 379 |
| Цинк | |
2973 | 25 |