Hf
Refractory Metal High Criticality

Hafnium

About Hafnium

Hafnium is a refractory metal always found alongside zirconium and separated during zirconium processing for nuclear applications. It has an exceptional ability to absorb neutrons, making it vital for nuclear reactor control rods. Hafnium is also increasingly important in advanced semiconductor gate insulators and aerospace superalloys for extreme temperature environments.

Primary Uses

Nuclear reactor control rods Superalloys for jet engines Semiconductor fabrication Plasma cutting tips

Top Producing Countries

1 France
2 United States
3 Russia
4 Ukraine

Quick Facts

Symbol
Hf
Atomic Number
72
Category
Refractory Metal
Criticality Level
High
Supply Risk
High
Top Producer
France
USGS Critical List
Listed
EU CRM List
Listed

Return to the full Mineral Library to explore other critical and strategic minerals.