Other
Glass in balls (other than microspheres of heading 7018), rods or tubes, unworked: > Tubes: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 7002.39.00
Quartz Glass Tubing for Fiber Optics
High-purity fused quartz glass tubes supplied unworked for manufacturing fiber optic cables and components. Classified in HTS 7002.39.00 as unworked tubes, including fused silica per chapter notes, prior to any drawing or fabrication. Ideal for high-temperature and optical applications.
Borosilicate Capillary Glass Tubes
Precision unworked borosilicate glass tubes with very small inner diameters for medical and analytical capillary applications. Falls under HTS 7002.39.00 as other unworked tubes, before any sealing or calibration. Used in blood analyzers, chromatography, and micro-fluidics.
Pyrex Glass Tubing for Industrial Thermowells
Pyrex-brand borosilicate unworked glass tubes for fabricating protective thermowells in industrial sensors. HTS 7002.39.00 for other unworked tubes, resistant to thermal shock for harsh environments. Used in chemical plants and refineries.
High-Purity Silica Glass Tubes for UV Lamps
Unworked high-purity synthetic silica glass tubes transmitting UV light for germicidal lamps and curing systems. HTS 7002.39.00 covers these fused silica tubes before quartz working. Essential for water purification and sterilization equipment.
Square Borosilicate Glass Tubing
Unworked square-profile borosilicate glass tubes for architectural models and specialty furniture. Classified HTS 7002.39.00 as other unworked tube shapes beyond round. Provides structural glass elements without fabrication.
Thin-Wall Borosilicate Glass Tubing for Vaporizers
Ultra-thin wall unworked borosilicate tubes for high-end electronic cigarette tanks and vaporizer chambers. HTS 7002.39.00 for other precision tubes before tank assembly. Heat-resistant for vaping applications.
Fused Quartz Rod-Tubes for Laboratory Furnaces
Hybrid rod-tube fused quartz glass unworked structures for custom lab furnace construction. HTS 7002.39.00 encompasses these complex unworked forms including fused silica. Extreme thermal properties for research heating.
Colored Soda Glass Tubing 8mm OD
Translucent colored soda-lime unworked glass tubing (8mm OD) for artistic glassworking and decorative lighting. HTS 7002.39.00 as other tubes; color integral to melt, not coating. Popular in studio glass art.
Heavy Wall Borosilicate Glass Pressure Tubes
Thick-walled unworked borosilicate glass tubes rated for high internal pressure in hydraulic sight glasses. HTS 7002.39.00 for robust industrial other tubes. Monitors fluid levels in machinery.
Borosilicate Glass Test Tubes
Unworked borosilicate glass tubes used primarily in laboratory settings for scientific experiments and sample containment. They fall under HTS 7002.39.00 as unworked glass tubes, without any drawn, blown, or further processing beyond basic tube formation. These tubes are essential for applications requiring thermal resistance and chemical durability.
Soda-Lime Glass Tubing for Neon Signs
Unworked soda-lime glass tubes in continuous lengths for bending into neon lighting and signage. HTS 7002.39.00 covers these as other unworked tubes, not drawn or tooled, supplied in bulk for custom fabrication. Provides the clarity and workability needed for illuminated displays.
Fused Silica Glass Tubes for Semiconductor Processing
Unworked fused silica tubes designed for high-purity environments in semiconductor diffusion furnaces and wafer processing. HTS 7002.39.00 includes these as other unworked tubes, leveraging the chapter definition of fused quartz as glass. Critical for thermal stability in chip manufacturing.
Neutral Glass Tubing for Pharmaceutical Vials
Type I neutral borosilicate glass tubing in unworked form for conversion into injectable vials and ampoules. Classified HTS 7002.39.00 as other unworked tubes, supplied in bulk coils or straights for pharma packaging lines. Meets pharmacopeia standards for drug containment.
Soft Glass Tubing for Scientific Demonstrations
Low-expansion soft soda glass tubing unworked, ideal for educational glassblowing and science fair projects. Under HTS 7002.39.00 as other tubes, easy to work by hand without industrial equipment. Commonly used in classrooms for flameworking demos.
Borosilicate Round Glass Tubing 10mm OD
Standard 10mm outer diameter borosilicate unworked glass tubing stocked for general fabrication. HTS 7002.39.00 as other unworked tubes in various wall thicknesses. Versatile for prototyping, aquariums, and custom glassware.