Tungsten Carbide Seal Rings
Sintered tungsten carbide rings used in mechanical seals for pumps and valves. Falls under HTS 2849.90.30.00 as basic carbide shapes, chemically defined. Offers corrosion and wear resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If assembled into complete gasket/seal sets
Sealing sets for machinery classify as Chapter 84 parts.
If predominantly non-carbide ceramic composition
Other ceramic articles not carbide-specific go to Chapter 68.
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Import Tips & Compliance
• Specify ring ID/OD tolerances as blanks; documentation must exclude 'finished seals'
• Comply with API standards declarations
Related Products under HTS 2849.90.30.00
Tungsten Carbide Powder
Fine powder composed of tungsten carbide (WC), a chemically defined compound used primarily in manufacturing cutting tools and wear-resistant parts. It falls under HTS 2849.90.30.00 as a carbide of tungsten, not chemically undefined or excluded by chapter notes. This form is imported for industrial sintering processes.
Tungsten Carbide Rod Blanks
Unmachined cylindrical rods made from sintered tungsten carbide, used as blanks for drills and end mills. Classified under HTS 2849.90.30.00 as tungsten carbides in unworked form, per chapter exclusions for worked shapes. Ideal for precision tooling production.
Tungsten Carbide Insert Blanks
Pressed and sintered tungsten carbide blanks for turning and milling inserts, chemically defined WC compound. Fits HTS 2849.90.30.00 as unwrought carbide shapes before final grinding. Used in CNC machining for metal cutting.
Tungsten Carbide Wear Plates
Flat sintered plates of tungsten carbide for lining crushers and chutes against abrasion. Covered by HTS 2849.90.30.00 as tungsten carbides in basic shapes, not advanced workings. Essential for mining equipment durability.
Tungsten Carbide Nozzles
Sintered tungsten carbide nozzles for sandblasting and waterjet cutting, chemically defined carbide. HTS 2849.90.30.00 applies to these unworked forms before final threading. High wear resistance for abrasive flows.
Tungsten Carbide Wire Drawing Dies
Cylindrical sintered tungsten carbide dies with central hole for wire drawing processes. Classifies in HTS 2849.90.30.00 as unwrought carbide shapes. Used in metal wire production lines.