HS Code for Mill scale

Mill scale is classified under HS code 2619.00. This code covers slag, dross, scalings, and other waste resulting from the manufacture of iron or steel. Mill scale is a byproduct of the steelmaking process, specifically the flaky surface of hot-rolled steel, consisting largely of iron oxides such as magnetite and hematite. It is classified in Chapter 26 because it is a residue from the metallurgical industry. Unlike granulated slag, which has its own specific code, mill scale is grouped with other non-granulated waste products. The classification depends on its origin as a byproduct of iron or steel production and its composition as a metallic oxide waste. Under the Harmonized System, residues that are fit for the recovery of metal or for use in the manufacture of chemical compounds are typically placed in Chapter 26. Mill scale is frequently recycled back into the sintering process or used as a raw material in the production of iron oxide pigments and negative electrodes for batteries. Its status as a secondary industrial material rather than a primary ore or a finished metal product is the key factor in its 2619.00 designation.

Products Included

• Iron oxide mill scale
• Hammer scale from forging
• Roll scale from hot rolling mills
• Ferrous scalings from steel reheating

Common Misclassification

Mill scale is often misclassified under HS code 2618.00, which is reserved specifically for granulated slag (slag sand) from the manufacture of iron or steel. It may also be confused with 2620.19, which covers other residues containing mainly zinc. The distinction lies in the ferrous nature of mill scale and its physical form as a scaling rather than a granulated or ash-like residue.

FAQ

What is the HS code for mill scale?

The HS code for mill scale is 2619.00, covering waste from iron or steel manufacture.

Is mill scale considered an ore?

While it contains high levels of iron, it is classified as a waste or scaling (2619.00) rather than a primary iron ore (2601) because it is a byproduct of processing.