Tungsten Heat Sink Scrap
Scrap from machined tungsten-copper composite heat sinks for power electronics. Classified as tungsten scrap if tungsten predominant.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily copper-tungsten composite
Articles of copper take precedence if copper exceeds tungsten content.
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Import Tips & Compliance
• Separate copper components before shipment for pure tungsten scrap classification
• Include thermal property test reports if disputed
Related Products under HTS 8101.97.00.00
Tungsten Carbide Scrap
Scrap material consisting of discarded tungsten carbide inserts and tooling bits from machining operations. Classified under HTS 8101.97.00.00 as waste and scrap of tungsten, distinct from unwrought or semi-manufactured forms in other subheadings.
Tungsten Wire Scrap
Waste tungsten wire trimmings and rejects from electrical filament and lamp manufacturing. Falls under HTS 8101.97.00.00 specifically for tungsten waste and scrap, separate from bars, rods, or profiles.
Tungsten Electrode Scrap
Discarded tungsten electrodes from TIG welding operations, often with minor wear. HTS 8101.97.00.00 covers this as tungsten scrap, excluding finished articles like electrodes under other provisions.
Tungsten Alloy Turning Scrap
Machining turnings and borings from high-density tungsten alloy parts used in aerospace and defense. As per Chapter 81 notes, alloys with tungsten under 99% but predominant are tungsten scrap under 8101.97.00.00.
Tungsten Lamp Filament Scrap
Scrap filaments recovered from spent incandescent and halogen lamps. Classified as tungsten waste under HTS 8101.97.00.00, not as lamp parts.
Tungsten Crucible Scrap
Broken or worn crucibles from high-temperature metallurgy and semiconductor production. HTS 8101.97.00.00 applies to such articles as tungsten scrap.