Tungsten Alloy Furnace Slag
Furnace slag from producing tungsten-heavy alloys for aerospace, mainly tungsten. Classified HTS 2620.99.20.00 as industrial residue for metal/compound basis. Chapter notes confirmed for non-steel origins.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alloy steel slag with tungsten additives
Steel alloy residues exclude from 2620 per chapter notes.
If from aluminum-tungsten reduction
Clinker/slag from aluminum takes specific Chapter 26 heading.
If containing mainly vanadium with tungsten
Predominant metal determines subheading within 2620.99.
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Import Tips & Compliance
• Furnace process logs essential to prove non-iron manufacture
• Assay reports without deductions for accurate duty assessment
Related Products under HTS 2620.99.20.00
Tungsten Smelting Slag
Residue from the smelting process of tungsten ores, primarily consisting of tungsten compounds and minor metal impurities. Classified under HTS 2620.99.20.00 as slag containing mainly tungsten, used in industry for metal recovery or chemical manufacturing. Excludes iron/steel production residues.
Tungsten Carbide Production Ash
Ash residue generated during the manufacture of tungsten carbide tools, rich in tungsten compounds. Falls under HTS 2620.99.20.00 due to its primary tungsten content and use in recovering metals for chemical compounds. Not from iron/steel making.
Tungsten Recovery Plant Ash
Ash from solvent extraction plants recovering tungsten from low-grade sources, mainly tungsten content. HTS 2620.99.20.00 covers this as industrial residue for further metal extraction or compounds. Excludes waste incineration products.
Spent Tungsten Catalyst Residue
Residue from deactivated petroleum catalysts containing primarily tungsten oxides. HTS 2620.99.20.00 applies to such ash used for tungsten recovery industrially. Excludes incinerated waste.
Tungsten Wire Drawing Slag
Slag byproduct from drawing tungsten wires for lighting, mainly tungsten particles. Under HTS 2620.99.20.00 as metal-containing residue for re-melting. Industrial use per chapter notes.
Hard Metal Alloy Slag
Slag from melting hard metal alloys where tungsten is the dominant component, used in tooling industries. HTS 2620.99.20.00 applies as other slag/residues containing mainly tungsten for metal extraction. Excludes municipal or iron/steel ash.