Hafnium: Characteristics
The neutron-hungry twin that zirconium is not
What this tab covers The supply and physical characteristics of the commodity. Supply: current production, inventories and stocks, capacity utilisation, geographic and producer concentration, how fast supply responds to price, the project pipeline and capital spending, and logistics and export flows. Material: the physical and chemical properties that set its grade, price and end uses (for example purity and conductivity for metals, API gravity, sulfur and energy content for fuels, moisture, protein and fibre quality for crops).Supply volume characteristics
| Characteristic | Figure | What it means | Source |
|---|---|---|---|
| Current production volume | about 70-75 t a year of pure hafnium metal (2025); USGS publishes no world total | All primary hafnium comes from purifying nuclear-grade zirconium. About 50 t of zirconium is processed per tonne of hafnium recovered. | Argus (2025); Reuters (2023); USGS MCS 2026 |
| Inventory and stock levels | not published | No exchange or published government stock. Buyers stocked up in the 2023 price rush and drew those stocks down in 2024-25, which eased prices until October 2025. | Argus (2025); USGS MCS 2026 |
| Capacity utilisation | not published | Hafnium output is set by nuclear-grade zirconium production, not hafnium capacity. A production problem at the largest French producer in 2025 showed how one plant sets world supply. | Argus (2025) |
| Geographic and producer concentration | France about 49%, US about 44% of processing; top 3 (with China 5%) about 98% (EU CRM 2023) | In effect a handful of firms: Framatome (France), ATI (Oregon) and Westinghouse (Utah), plus Chinese nuclear zirconium plants and Russia's Chepetsk plant. HHI is not published; from the EU shares it is roughly 4,400 (derived). | EU CRM 2023 (derived) |
| Supply elasticity | very low: a pure by-product (companionality about 95%) | A 300% price rise in 2022-23 brought little new supply, because output depends on reactor fuel demand. New separation plants take years to build and permit. | EU CRM 2023; Reuters (2023) |
| Project pipeline and CapEx | few named projects | Australian Strategic Materials has planned hafnium as part of a zirconium and rare earths project. Growth in Chinese reactor construction (six to eight a year planned in 2020-25) adds zirconium and hence hafnium output. | Reuters (2023); this tile's company data |
| Logistics and export flows | US imported 72 t and exported 15 t of unwrought hafnium (2025) | US unwrought imports came from Germany (54%), China (21%) and France (12%) in 2021-24. China and Germany are the leading exporters. Russian exports were blocked by missing dual-use licences in 2023 and Chinese exports have been curbed since late 2024, so licences rather than ports are the chokepoint. | USGS MCS 2026; Argus (2025) |
Material characteristics Metal / hard commodity
Hafnium is valued for properties that zirconium, its chemical twin, lacks. It absorbs neutrons strongly, so it makes control rods. It strengthens grain boundaries in nickel superalloys at about 1-2%. Its oxide has a high dielectric constant, so it insulates transistor gates in leading-edge chips. Purity specifications are mainly about how much zirconium remains.
| Property | Value / specification | Why it matters | Source |
|---|---|---|---|
| Purity / zirconium content | Commercial hafnium typically 97-99% Hf with zirconium up to a few percent (ASTM B776 grades); chip-grade compounds with very low Zr and metals (indicative) | Superalloy melters accept some zirconium; semiconductor and nuclear uses need tighter limits and pay more | ASTM B776 (indicative) |
| Neutron absorption | Thermal neutron capture cross-section about 104 barns (zirconium 0.18) | Makes hafnium a long-lived control-rod material that also resists water corrosion | CRC Handbook |
| Melting point and density | 2,233 C; 13.3 g/cm3 | High melting point suits plasma-cutting electrode tips and high-temperature alloys | CRC Handbook |
| Dielectric constant of HfO2 | about 20-25 (silicon dioxide 3.9) | Allows thinner, lower-leakage gate insulators and memory layers in advanced chips | Semiconductor literature (indicative) |
| Superalloy additive level | about 1-1.5% Hf in alloys such as MAR-M247 | Improves grain-boundary ductility and casting quality in turbine blades | Alloy specifications (indicative) |
| Corrosion resistance | Protective oxide; resists water and many acids | Lets control rods sit in reactor coolant for decades | CRC Handbook |