High Purity 99.9% Hafnium Powder CAS 7440-58-6 Metal Hf Powder for Nuclear Reactor & Aerospace

-0 mesh to +500 mesh. Customized specifications are available upon request. The minimum D50 can reach 1-3 μm.

Widely used as cathodes for X-ray tubes and in the manufacturing industry of tungsten filaments. Pure hafnium is highly ductile, easily machinable, and resistant to high temperatures and corrosion, making it a vital material in the atomic energy industry.

Due to its exceptionally high thermal neutron capture cross-section, hafnium is an ideal neutron absorber, extensively utilized for control rods and protective devices in nuclear reactors. Additionally, hafnium powder serves as an excellent incendiary energetic material.

CAS Number: 7440-58-6

Packaging: Vacuum-sealed plastic bags, with a net weight of 1-2 kg per bag.

Chemical Composition:

• Nuclear Energy & Control Systems: Leveraging hafnium's exceptionally high thermal neutron capture cross-section and the material's stable hydrogen retention properties, it is widely utilized as a neutron moderator and absorber component in nuclear reactors.
• Aerospace & Defense: Serves as a specialized additive in solid rocket propellants, high-energy composite materials, and advanced Thermal Protection Systems (TPS).
• Vacuum Electronics & Getters: Acts as a highly efficient getter material for high-vacuum tubes, absorbing residual gases (e.g., O2, N2) at specific operating temperatures to maintain internal system vacuum integrity.
• Specialty Metallurgy: Functions as a grain refiner and hydrogen source in the manufacturing of hafnium-containing high-temperature superalloys.

• Rigorous Interstitial Gas & Impurity Control: Ultra-low oxygen, nitrogen, and carbon content ensures superior performance predictability and stability in critical nuclear and aerospace applications.
• Exceptional Batch Consistency: Advanced hydriding and milling processes guarantee uniform particle morphology and a highly narrow particle size distribution range.
• Comprehensive Compliance & Certification: Every shipment is accompanied by a detailed Certificate of Analysis (COA). Our ISO 9001-compliant factory workflows ensure 100% material traceability.

• Secure Vacuum Packaging: Packaged in 1-2kg vacuum-sealed aluminum foil inner bags, and subsequently packed in sturdy steel/iron drums in accordance with international shipping standards.
• Hazardous Goods Export Expertise: As hafnium is classified as a Flammable Solid (UN Dangerous Goods), we possess full global logistics operational qualifications. We provide comprehensive SDS/MSDS reports and Appraisal Certificates for Safe Transport of Chemical Goods to ensure seamless global customs clearance.