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SITCSection 6
U.S. imports of master copper alloys (SITC 68213) totaled $345K in April 2026, traded with 8 countries.
Last updated: April 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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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.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| GERMANY | -- | $1.2M | +$1.2M |
| CANADA | -- | $330K | +$330K |
| ITALY | $278K | -- | -$278K |
| SAUDI ARABIA | -- | $230K | +$230K |
| MEXICO | -- | $148K | +$148K |