Mill scale (ferrous metal)
CAS 65996-74-9
U.S. production volumes are classified as confidential business information.
US productionCBI
Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.
Top sourceNo public record
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.
Where It Comes From
EPA reports by year
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports 106.4M lb
EPA-registered manufacturers (51)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Arcelormittal · LU Luxembourg
Gerdau S/A · BR Brazil
Jfe Steel · JP Japan
Jsw Steel · IN India
Outokumpu Oyj · FI Finland
Show all 51
Acero Junction Holdings
Allegheny Ludlum
Am/Ns Calvert
Arkansas Steel Associates
Big River Steel
Carpenter Technology
Charter Manufacturing
Cleveland Cliffs Burns Harbor
Cleveland Cliffs Steel
Cleveland-Cliffs
Cmc Steel Fabricators, Inc. Dba Cmc Steel Arizona
Cmc Steel New Jersey
Cmc Steel Oklahoma
Cmc Steel Sc
Cmc Steel Texas
Cmc Steel Us
Commercial Metals
Evraz North America
Gerdau Ameristeel Petersburg
Gerdau Macsteel
Gerdau Usa
Jsw Steel Usa Plate Division
Keystone Consolidated Industries
Latrobe Specialty Steel
Metallus
Mid American Steel & Wire
Nlmk Usa
North American Stainless
North Star Bluescope Steel
Nucor
Nucor Steel
Nucor Steel Decatur
Nucor Steel Kankakee
Nucor Steel Sedalia
Nucor Steel Utah
Optimus Steel
Outokumpu Stainless Usa
Radius Recycling
Ssab Enterprises
Ssab Iowa
Steel Dynamics
Sterling Steel
Tenaris Bay City
United States Steel
Universal Stainless And Alloy Products
Vallourec Usa
Domestic parents -- activity not disclosed (2)
EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.
Alton Steel
Gerdau Ameristeel Saint Paul
Why It Matters
Sectors
AgricultureWaterConstructionMetals & MiningPlastics & RubberCore Chemicals
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 10 sectors as 7 functional roles.
- •Intermediate in Other (100%)Processing—repackaging
- •Filler in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing—incorporation into article
- •Intermediate in Primary Metal Manufacturing (100%)Processing as a reactant
- •Intermediate in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (72%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Inorganic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Filler in Fabricated Metal Product Manufacturing (6%)Processing—incorporation into article
- •Alloys in Primary Metal ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Alloys in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Anti-adhesive/cohesive in Plastics Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Oxidizing agent in Utilities (100%)Processing as a reactant
- •Alloys in Other (100%)Processing—repackaging
- •Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Filler in Construction (100%)Processing—repackaging
- •Filler in Other (41%)Processing—incorporation into formulation, mixture, or reaction product
- •Pigment in All Other Basic Inorganic Chemical Manufacturing (31%)Processing—incorporation into formulation, mixture, or reaction product
- •Filler in All Other Basic Inorganic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Pigment in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Oxidizing agent in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (100%)Processing as a reactant
Chemical Identity
CAS65996-74-9
PubChem CIDNot recorded
DTXSIDDTXSID2095522
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded
Data Sources
- EPA CompTox (DSSTox) · DTXSID2095522Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
Brief citations
Mill scale (ferrous metal) (CAS 65996-74-9) https://chemicalindependence.com/chemical/65996-74-9/ EPA CompTox (DSSTox): DTXSID2095522. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2095522 EPA Chemical Data Reporting: 65996-74-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 65996-74-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting