Rhenium Vacuum Tube Filament Scrap
Scrap filaments from specialty vacuum tubes used in microwave power amplifiers, containing pure rhenium wire. Classified HTS 8112.41.10.00 as rhenium waste and scrap from electronics manufacturing. High purity enables direct remelting.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +25.0% | 25% |
| 🇲🇽Mexico | Free | — | Free |
| 🇨🇦Canada | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If complete vacuum tube assemblies
Vacuum tubes including spent filaments classify under Chapter 85.
If tungsten-rhenium composite filaments
W-Re filament wires fall under tungsten articles in 8101.
If contaminated with stainless steel pinch-off scraps
Ferrous metal content predominates in mixed tube scrap.
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Import Tips & Compliance
• Provide OEM part drawings showing rhenium specification to support classification
• Magnetic separation from steel tube components before export
• Declare yield loss factors for customs scrap valuation adjustments
Related Products under HTS 8112.41.10.00
Rhenium Medical Imaging Foil Scrap
Quality rejects and trim scrap from rhenium foil used in CT scanner anode targets. Under HTS 8112.41.10.00 as rhenium waste and scrap from medical device production. Recovered for high-purity refoil production.
Rhenium Catalyst Waste
Spent rhenium-impregnated catalyst residues from petroleum refining processes, containing recoverable rhenium metal. Classified under HTS 8112.41.10.00 as waste and scrap of rhenium due to its primary rhenium content exceeding other metals and being unsuitable for direct use. This scrap is typically recycled to extract rhenium for reuse in high-performance alloys.
Spent Rhenium Filament Scrap
Discarded rhenium wire filaments from mass spectrometer ion sources, broken and contaminated with trace elements. HTS 8112.41.10.00 applies as rhenium waste and scrap suitable for remelting and purification. Primarily sourced from laboratory and analytical equipment decommissioning.
Rhenium Jet Engine Clippings
Precision clippings and grindings from rhenium-containing single-crystal turbine blades for military aircraft engines. Classified as rhenium waste and scrap under HTS 8112.41.10.00 due to high rhenium recovery value. These scraps undergo vacuum remelting for reuse in high-temperature applications.
Rhenium Plating Bath Sludge
Precipitated sludge from electroplating baths using rhenium salts for corrosion-resistant coatings on valves. HTS 8112.41.10.00 covers this as rhenium waste and scrap where metallic rhenium precipitates dominate. Recovered via roasting and reduction processes.
Discarded Rhenium Thermocouple Wire
Burnt-out thermocouple wires alloyed with tungsten-rhenium for high-temperature furnace monitoring, now as scrap. Under HTS 8112.41.10.00 as rhenium waste and scrap due to significant rhenium content for recovery. Common in semiconductor and glass manufacturing.