Steel Mill Scale
Mill scale is the flaky surface of hot-rolled steel formed during manufacture, classified as scalings and waste from iron or steel production under HTS 2619.00.90.00. It consists primarily of iron oxides and is often recycled for iron recovery. This waste product falls outside granulated slag, fitting the 'other' category.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used industrially for metal extraction or chemical compounds
Heading 2620 covers slag, ash, and residues specifically for metal recovery or chemical manufacture, unlike general waste in 2619.
If processed into ferrous waste/scrap for melting
Remelted or processed iron/steel waste shifts to Chapter 72 as scrap, not raw manufacturing waste.
If granulated or from specific high-temperature processes
Granulated slag from iron/steel making falls under 2618, distinct from non-granulated scalings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify the material is genuine mill scale from hot-rolling processes with lab assays to confirm iron oxide content and avoid misclassification
• Provide documentation proving it's waste from iron/steel manufacture, not processed or granulated slag
• Check for hazardous classifications if containing oils or contaminants; ensure compliance with environmental import regulations
Related Products under HTS 2619.00.90.00
Iron Pickling Sludge
Pickling sludge arises from acid cleaning of iron/steel surfaces to remove scale, classified as waste from iron or steel manufacture in HTS 2619.00.90.00. It contains iron oxides, acids, and metals, unsuitable for direct reuse without processing. This fits as 'other' slag, dross, or waste.
Steel Rolling Dross
Dross from steel rolling mills is oxide waste generated during hot and cold rolling, falling under HTS 2619.00.90.00 as other waste from iron or steel manufacture. It is flaky or powdery iron oxides not granulated. Commonly reused in cement or iron recovery.
Blast Furnace Iron Scalings
Scalings from blast furnace iron production are surface wastes removed during casting or handling, classified in HTS 2619.00.90.00 as other slag, dross, or waste from iron manufacture. High in iron content for potential recycling.
Steel Descaling Waste
Waste from mechanical or abrasive descaling of steel sheets and plates during manufacturing, under HTS 2619.00.90.00 as other waste. Composed of iron oxide flakes and debris from surface preparation.
Continuous Casting Scale
Scale generated from continuous casting of steel billets and slabs, a key waste in modern steelmaking under HTS 2619.00.90.00. It is oxide layer waste, not granulated, fitting 'other' category perfectly.