Niobium Carbide Powder
Niobium carbide (NbC) powder strengthening superalloys for jet engines. HTS 2849.90.50.00 for chemically defined form excluding alloys. Critical for high-temperature structural integrity.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ferroniobium alloys
Niobium ferroalloys containing carbides classified in heading 8112.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• ITAR/EAR screening required for aerospace end-uses
• Declare tantalum impurities <1% to avoid dual classification
• Use vacuum packaging for moisture-sensitive shipments
Related Products under HTS 2849.90.50.00
Silicon Carbide Powder
High-purity silicon carbide (SiC) powder used in abrasives, refractories, and ceramics production. It falls under HTS 2849.90.50.00 as a chemically defined carbide, not silicon carbide in sintered form with metal (which would be cermets in Section XV). This subheading covers other carbides beyond specified exclusions like calcium carbide.
Boron Carbide Abrasive Grit
Boron carbide (B4C) grit used in high-performance abrasives and armor materials. Classified in 2849.90.50.00 as 'other' chemically defined carbides, excluding metal-sintered cermets. Ideal for nozzle linings and cutting tools due to extreme hardness.
Tungsten Carbide Powder
Fine tungsten carbide (WC) powder for manufacturing cutting tools and wear-resistant coatings. Falls under HTS 2849.90.50.00 as other carbides, provided not sintered with metal into cermet form. Chemically defined compound per Chapter 28 notes.
Chromium Carbide Powder
Chromium carbide (Cr3C2) powder applied in thermal spray coatings for corrosion resistance. Classified under 2849.90.50.00 for chemically defined carbides excluding those sintered with metals. Used in aerospace and petrochemical industries.
Vanadium Carbide Powder
Vanadium carbide (VC) powder used as grain refiner in steel alloys and tool steels. HTS 2849.90.50.00 applies to this chemically defined carbide not chemically combined as complex salts. Enhances hardness without brittleness.
Molybdenum Carbide Catalyst
Molybdenum carbide (Mo2C) nanoparticles used as hydrotreating catalysts in refineries. Falls under 2849.90.50.00 as chemically defined carbide for chemical process applications. High stability under harsh reaction conditions.