U.S. exports of Hydrides, Nitrides, Azides, Silicides, and Borides (SITC 52495) totaled $20.4M in August 2026.
Importers of Hydrides, Nitrides, Azides, Silicides, and Borides paid $649K in duties in August 2026, an average duty rate of 18.43% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataClassified separately from carbides, this group of inorganic binary compounds—hydrides, nitrides, azides, silicides, and borides—serves as critical precursor and functional materials across semiconductor fabrication, advanced ceramics, and specialty metallurgy. Silicon nitride and borides, for instance, are prized for extreme hardness and thermal stability in cutting tools and refractory applications, while metal hydrides are key to hydrogen storage research. Classification hinges on whether the compound is also a carbide falling under adjacent headings, making precise chemical identification essential at entry. Importers should confirm the exact compound identity and CAS number to avoid misclassification disputes.
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113 import shipments a month
The key boundary is whether the compound also qualifies as a carbide under the adjacent carbide headings. If a compound contains carbon in a carbide-forming role, it falls under those specific carbide provisions; pure hydrides, nitrides, azides, silicides, and borides that do not meet that carbide definition are classified here. Importers should supply a precise chemical specification and CAS number to support the correct classification.
Advanced ceramics manufacturers, semiconductor equipment producers, and hard-coating applicators are the primary buyers. Silicon nitride is used in cutting inserts and bearing components; titanium diboride appears in armor and crucible linings; and metal hydrides are increasingly relevant to hydrogen energy storage systems. Demand patterns therefore track capital investment cycles in electronics and industrial tooling.
Basic heading 182 of 465 in section 5
Basic heading 52495 · $20.4M of $26.2B
Exports · August 2026
destination
Taiwan and India together take 62% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$3.9MYoY · free account
Exports
$20.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $38.9M of Hydrides, Nitrides, Azides, Silicides, and Borides and exported $218.9M.
Through August 2026. Source: U.S. Census Bureau.
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