U.S. imports of Master Copper Alloys (SITC 68213) totaled $1.5M in August 2026, imported from 14 countries.
Importers of Master Copper Alloys paid $5K in duties in August 2026, an average duty rate of 0.34% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Master Copper Alloys imports of $1.5M in August 2026 ran 124% above the year-to-date monthly average of $662K.
Last updated: August 2026 dataMaster alloys are high-concentration copper-based hardeners — such as copper-chromium, copper-beryllium, or copper-phosphorus compositions — added in controlled amounts to molten copper or copper alloys to introduce specific alloying elements without the handling difficulties of pure reactive metals. They serve foundries, continuous-casting operations, and specialty alloy producers as precision dosing intermediates rather than end-use materials. The distinction from ordinary copper alloys (SITC 68214) is functional: master alloys are formulated for dilution into a melt, not for direct fabrication into parts.
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14 import shipments a month
A master alloy is intentionally formulated with an elevated concentration of one or more alloying elements — well above the level found in the final product — specifically for use as an additive to a melt. It is not intended for direct fabrication. Standard copper alloys (68214), by contrast, are at their final composition and are used directly in manufacturing. The intended use and composition concentration are the key classification factors.
Copper-phosphorus compositions used as brazing filler metals are generally classified as brazing alloys under finished-product headings rather than as master alloys, because they are used directly in the brazing process rather than as melt additives. True master alloys are those added to a furnace charge to adjust the composition of a larger melt. Importers of copper-phosphorus products should confirm the intended use and form with a customs broker to determine the correct heading.
Basic heading 68213 · $1.5M of $27.0B
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Imports · August 2026
origin
Belgium and Spain together supply 95% of it. India pays 10.0% duty; Belgium 0.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$1.5MYoY · free account
Exports
$1.6MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $7.1M of Master Copper Alloys and exported $16.5M.
Through August 2026. Source: U.S. Census Bureau.