Hafnium

CAS 7440-58-6

U.S. production volumes are classified as confidential business information.

Hf178.5 g/mol

no molecular structure to draw

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$176M

Import volume27.8K lb

Top sourceGermany 68%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.

Where It Comes From

Customs basis: HS 811231, 811239 · exact

EPA reports by year

2023: US production Confidential · Imports 27.8K lb
2019: US production Confidential · Imports Zero

Source Countries

Country of origin for US imports, from Census customs data (2024).

DE 68%GermanyCN 13%ChinaGB 9%United KingdomIT 5%ItalyCA 4%Canada

Japan
Malaysia
Estonia
Switzerland

EPA-registered manufacturers (4)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Wattusa Midco Holdings · GB United Kingdom

Ati

Cannon Muskegon

Western Zirconium

Why It Matters

Sectors

TransportationMetals & Mining

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 2 sectors as 1 functional role.

•Alloys in Primary Metal Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Alloys in Fabricated Metal Product Manufacturing (30%)Processing—incorporation into article

Chemical Identity

CAS7440-58-6

PubChem CID23986

DTXSIDDTXSID8064698

FormulaHf

Mol. Weight178.49 g/mol

SMILES[Hf]

Data Sources

EPA CompTox (DSSTox) · DTXSID8064698Retrieved 2026-04-06
PubChem · compound 23986Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Hafnium (CAS 7440-58-6) https://chemicalindependence.com/chemical/7440-58-6/ EPA CompTox (DSSTox): DTXSID8064698. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8064698 PubChem: 23986. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23986 EPA Chemical Data Reporting: 7440-58-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 7440-58-6. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 811231,811239 for CAS 7440-58-6. Reporting year: 2024. https://usatrade.census.gov/