Quartz Glass Balls Unworked
Fused quartz glass balls, unworked, for optical and semiconductor applications prior to further processing. HTS 7002.10.20.00 covers these as 'other' balls, including fused silica per tariff schedule definition of glass.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ground or polished into millstones
Worked quartz forms for grinding tools classify in Chapter 68 as artificial stone, not glass.
If drawn and cut into finished optical elements
Processed quartz balls become glassware for technical uses under 7013.
If fibrous glass wool form
Quartz-based fibrous products meeting SiO2 specs fall in 7019 per chapter note.
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Import Tips & Compliance
• Supply purity certificates (e.g
• >99.9% SiO2) as fused quartz qualifies as glass throughout the schedule
• Document lack of coatings or layers; chapter notes exclude absorbent/reflecting treatments that could shift to 7006
Related Products under HTS 7002.10.20.00
Borosilicate Glass Balls for Laboratory Use
Unworked borosilicate glass spheres designed for melting into labware components like stirrers or valves. Classified in 7002.10.20.00 as other unworked glass balls, retaining chapter note character whether or not they have article-like form.
Optical Flint Glass Balls Unworked
Unworked flint glass spheres for precision optics manufacturing. HTS 7002.10.20.00 as other unworked glass balls, prior to grinding into lenses.
Colored Soda Glass Balls for Crafts
Unworked colored soda-lime glass balls for craft fusing and slumping. 7002.10.20.00 covers as other balls, annealing only.
Unworked Soda-Lime Glass Balls
Spherical soda-lime glass balls, unworked except for annealing, used as precursors for manufacturing precision bearings and valves. They fall under HTS 7002.10.20.00 as 'other' glass balls not classified as microspheres of heading 7018, with no further processing beyond basic forming.
Lead-Free Glass Balls for Decorative Molding
Unworked clear glass balls for hot molding into ornamental beads or sculptures. Falls under 7002.10.20.00 as other unworked balls, distinct from lead crystal requiring 24% PbO.
High-Density Glass Balls for Shot Blasting
Unworked glass balls serving as preforms for abrasive media in shot peening. Classified 7002.10.20.00 as other balls, unworked status preserved under chapter notes.