Silicon Carbide Powder 600 Grit FFP
High-purity silicon carbide powder at 600 grit, black in color, used for precision lapping and polishing in optics and ceramics manufacturing. Classified under HTS 2849.20.20.00 as chemically defined silicon carbide that has been pulverized or refined into fine powder form. This distinguishes it from crude silicon carbide.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied in crude lump form
Lump silicon carbide before grinding or pulverizing is under the crude subheading 2849.20.10.
If mixed with binders as prepared polishing powder
Silicon carbide powders prepared with additives specifically for polishing are classified as chemical preparations in heading 3824.
If formed into porous crucibles or labware
When shaped into ceramic laboratory articles, it becomes a finished product under Chapter 69 for ceramic wares.
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Import Tips & Compliance
• Request supplier certificates confirming silicon carbide content >98% to avoid misclassification; check for free silica content under OSHA limits; use anti-static packaging to prevent electrostatic hazards
Related Products under HTS 2849.20.20.00
Ferro-Silicon Carbide Grain 24/48 Mesh
Ferro-silicon carbide in granular form with 24/48 mesh size, chemically defined as silicon carbide with iron additives, used as an abrasive and deoxidizer in steel production. It falls under HTS 2849.20.20.00 because it is silicon carbide processed into grains or ground form, meeting the chapter's criteria for carbides whether or not chemically defined. This subheading specifically covers silicon carbides that are ground, pulverized, or refined.
Green Silicon Carbide Micronized Powder 1200 Mesh
Green silicon carbide micronized to 1200 mesh, produced via Acheson process with higher purity, ideal for bonded abrasives and refractories. It qualifies for HTS 2849.20.20.00 due to its refined, pulverized state as a chemically defined carbide of silicon. The green color indicates low iron impurities.
Black Silicon Carbide Grain 16/30 Mesh for Steel Deoxidation
Black silicon carbide grains sized 16/30 mesh, used in steelmaking for deoxidation and as a slag conditioner. Falls under HTS 2849.20.20.00 as ground silicon carbide grains, chemically defined per Chapter 28/29 notes. Standard abrasive/metallurgical grade.
Silicon Carbide Fused Powder 325 Mesh Refractory Grade
Fused silicon carbide powder at 325 mesh, designed for high-temperature refractory brick production. Classified in HTS 2849.20.20.00 for its pulverized, refined form as a silicon carbide compound. Chemically defined with consistent SiC composition.
SiC Abrasive Grain 80 Grit Ground
Silicon carbide (SiC) abrasive grains at 80 grit, ground for use in resinoid grinding wheels and coated abrasives. Under HTS 2849.20.20.00 as refined, ground silicon carbide, chemically defined carbide per chapter provisions. Standard black SiC grade.
High Purity SiC Powder for Sintered Ceramics
High purity alpha silicon carbide powder for pressureless sintering into advanced ceramics. HTS 2849.20.20.00 applies to this pulverized, chemically defined silicon carbide refined for technical ceramics. Purity exceeds 99% SiC.