Carbides of Boron, Chromium, Tungsten, and Other Metals (NESOI)

Tungsten carbide, boron carbide, and chromium carbide are the commercially dominant materials under this heading, serving as essential inputs for cutting inserts, wear-resistant coatings, and hard-metal tooling across aerospace, mining, and metalworking industries. The US schedule breaks out boron carbide (2849901000), chromium carbide (2849902000), and tungsten carbide (2849903000) as distinct 10-digit lines, with residual carbides captured under 2849905000 and 2849906000. China is the leading supplier, with Austria and Canada also significant sources — Austria in particular is a recognized center of cemented carbide manufacturing. Tungsten carbide lines may attract Section 301 scrutiny when sourced from China, and importers should confirm classification carefully since mixed carbide powders can straddle multiple lines.

AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.