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HSChapter 74
U.S. imports of master alloys of copper (HS 740500) totaled $345K in April 2026, traded with 8 countries.
Last updated: April 2026 dataCopper master alloys are intermediate metallurgical products—high-concentration additive alloys melted into base copper to achieve precise final compositions—and the US tariff schedule distinguishes them by alloying element: phosphorus-bearing grades (5–15% phosphorus at 7405001000), beryllium copper master alloy (7405006030), and all other types (7405006050). The phosphorus-copper variant is widely used as a deoxidizer in foundry and casting operations, while beryllium copper master alloy serves specialty electronics and aerospace applications requiring high conductivity combined with spring-temper hardness. Belgium and Kazakhstan are the leading import sources, reflecting Europe's established non-ferrous alloying industry and Central Asia's beryllium mining base.
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Phosphorus-copper master alloy (7405001000) is primarily a deoxidizing and fluidity-improving additive used in brass and bronze casting. Beryllium copper master alloy (7405006030) is a specialty product added to achieve high strength, fatigue resistance, and electrical conductivity in precision components; it also carries additional handling and safety considerations due to beryllium's toxicity, which can affect import documentation and workplace compliance requirements.
A master alloy is defined as an alloy used as an additive in manufacturing other alloys—it is not intended for direct fabrication into end products. If the product is designed to be diluted into a melt to adjust composition, it classifies under 7405; if it is a semi-fabricated form (bar, rod, sheet) intended for direct use, it would fall under the appropriate fabricated-product heading. Consult a licensed customs broker for borderline cases, as the distinction turns on the product's intended use and composition.
Monthly import values over time
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| GERMANY | -- | $1.2M | +$1.2M |
| CANADA | -- | $330K | +$330K |
| ITALY | $278K | -- | -$278K |
| SAUDI ARABIA | -- | $230K | +$230K |
| MEXICO | -- | $148K | +$148K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7405006050 | MASTER ALLOYS OF COPPER, NESOI | $312K | 10.00% | $881 |
| 7405001000 | CU MSTR ALLOYS, 5 TO 15 PERCENT PHOSPHORUS | $33K | -- | -- |
MASTER ALLOYS OF COPPER, NESOI
CU MSTR ALLOYS, 5 TO 15 PERCENT PHOSPHORUS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7405000000 | MASTER ALLOYS OF COPPER | $2.2M |
MASTER ALLOYS OF COPPER
92.8K kg
REFINED COPPER CATHODES AND SECTIONS OF CATHODES
HS 740311
COPPER WASTE AND SCRAP
HS 740400
TUBES & PIPES OF REFINED COPPER
HS 741110
COPPER ALLOY TUBE OR PIPE FITTINGS
HS 741220
COPPER FOIL, NOT BACKED, OF REFINED COPPER
HS 741011
BARS, RODS AND PROFILES OF REFINED COPPER
HS 740710
| State | Imports | Exports | Balance |
|---|---|---|---|
| North Carolina | $21K | $913K | +$892K |
| Ohio | -- | $404K | +$404K |
| Pennsylvania | -- | $290K | +$290K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | -- | $913K | +$913K |
| NEW YORK, NY | -- | $593K | +$593K |
| JFK INTERNATIONAL AIRPORT, NY | $248K | $3K | -$245K |