Iridium Tube Hollow Stock 3mm OD
Seamless iridium tubing 3mm outer diameter for thermocouple sheaths and chemical reactor components. Semimanufactured hollow form under HTS 7110.49.0010, excluding finished tubes. Extreme chemical inertness for harsh environments.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If goldsmiths' hollowware
Note 10 covers finished precious metal tubes as worked articles.
If base metal with iridium liner
Clad or lined products classified by base metal per note 7.
If ruthenium-iridium alloy tubing
Alloy classification follows predominant PGM weight.
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Import Tips & Compliance
• Specify wall thickness and concentricity for semimanufactured classification
• Test for longitudinal seams that could indicate fabricated vs extruded stock
• Comply with ITAR if for defense-related high-temp applications
Related Products under HTS 7110.49.00.10
Unwrought Iridium Ingot
A solid iridium ingot in unwrought form, typically produced by melting and casting pure iridium metal, used as raw material for further processing in high-tech industries. Classified under HTS 7110.49.0010 as iridium separately in unwrought form, distinct from powder or finished semimanufactured products. Meets chapter notes defining platinum group metals including iridium.
Iridium Sponge
Porous iridium sponge produced by thermal decomposition, a semimanufactured intermediate form before final fabrication into wires or foils. Falls under HTS 7110.49.0010 as iridium separately, not powder per subheading note requiring 90% through 0.5mm sieve. Used in spark plug electrodes and crucibles.
Iridium Wire Rod 1mm Diameter
Semimanufactured iridium wire rod drawn to 1mm diameter, suitable for further drawing into fine wires for thermocouples and electrical contacts. HTS 7110.49.0010 covers iridium separately in unwrought or semimanufactured forms, excluding finished articles. Purity typically 99.95% to meet electronics specs.
Iridium Foil Sheet 0.05mm Thick
Thin iridium foil rolled to 0.05mm thickness for use in thin-film deposition and corrosion-resistant linings. Semimanufactured form under HTS 7110.49.0010 for iridium separately, as it requires further processing into finished products. High corrosion resistance ideal for chemical processing equipment.
Pure Iridium Powder-Free Semimanufactured Pellet
Compressed iridium pellets in semimanufactured form for spark erosion electrodes and additive manufacturing feedstock. Distinct from powder form per subheading note, classified under HTS 7110.49.0010 as iridium separately. Particle aggregates exceed 0.5mm sieve size.
Iridium Strip 10mm Wide x 0.2mm Thick
Rolled iridium strip 10mm wide by 0.2mm thick for electrical contacts and sealing rings in vacuum equipment. HTS 7110.49.0010 applies to this unwrought/semimanufactured iridium form separately from alloys or powders. Exceptional oxidation resistance at high temperatures.