| Steel producers (HSLA, rebar, tool steels) | Ferrovanadium (FeV80, FeV40), vanadium nitride | 78-82% V (FeV80); commercial grade | ArcelorMittal, Nippon Steel, POSCO, Baosteel, Nucor | Consumption tied to steel production cycles and rebar standard enforcement; vanadium intensity ~0.5 kg per tonne of steel |
| VRFB manufacturers and energy developers | High-purity V2O5, vanadium electrolyte solution (V³⁺/V⁴⁺ sulfate) | ≥99.5% V2O5; tight impurity controls for electrolyte | Dalian Rongke Power, Invinity Energy Systems, VRB Energy, CellCube | Electrolyte constitutes 30-50% of VRFB system cost; vanadium price volatility is the key economic variable; specialized conversion capability concentrated in China |
| Aerospace and defense | Vanadium-aluminum master alloys (AlV55-AlV85) | 99.5-99.9% V; meets military/aerospace specifications | Boeing, Airbus, Lockheed Martin, GE Aerospace, Rolls-Royce | Long qualification cycles (2-5 years); ITAR/export controls; Ti-6Al-4V is dominant alloy for airframes and engines |
| Chemical and petroleum industries | V2O5 powder/flake on silica substrate (catalyst grade) | ≥98% V2O5 | BASF, Haldor Topsoe, sulfuric acid producers globally | Catalyst lifetime 3-5 years; spent catalysts are recyclable (AMG V-CYCLE process recovers >99%) |
| Medical devices | Ti-6Al-4V alloy (indirect vanadium consumption) | ASTM F136 / ISO 5832-3 medical grade | Stryker, Zimmer Biomet, DePuy Synthes (Johnson & Johnson) | Biocompatibility requirements; FDA/CE approval cycles for implant materials |