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NAICSSector 33
U.S. imports of nonferrous metal die-casting foundries (NAICS 331523) totaled $8.9M in April 2026, traded with 36 countries.
Importers of Nonferrous Metal Die-Casting Foundries paid $4.7M in duties in April 2026 — an effective duty rate of 57% on $8.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataHigh-pressure die casting of zinc, aluminum, magnesium, and copper alloys into net-shape or near-net-shape components defines NAICS 331523, with automotive parts — transmission cases, engine brackets, door handles — representing the dominant end market. Die casting's combination of high throughput, dimensional repeatability, and thin-wall capability makes it the preferred process for mass-produced metal components, and the segment is deeply integrated into global automotive supply chains. Importers of die-cast parts should be aware that aluminum die castings from certain countries have been subject to antidumping scrutiny, and that automotive-grade castings typically require IATF 16949 quality certification from the supplying foundry.
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For automotive applications, IATF 16949 (the automotive quality management standard) is the baseline expectation, often supplemented by customer-specific requirements (CSRs) from OEMs. For aerospace or defense die castings, AS9100 or NADCAP process approvals may be required. Beyond quality systems, importers should request dimensional inspection reports, alloy chemistry certifications (to ASTM or equivalent standards), and, where applicable, RoHS or REACH compliance declarations for restricted substances in the alloy.
Aluminum alloys (particularly A380 and A383) account for the largest share of die-cast production by weight, followed by zinc alloys (Zamak series) and, to a lesser extent, magnesium and copper alloys. Alloy composition directly affects HTS classification: aluminum die castings fall under Chapter 76 provisions for aluminum articles, zinc die castings under Chapter 79, and magnesium die castings under Chapter 81 — each with potentially different duty rates and trade-remedy exposure. Correct alloy identification on entry documents is essential.
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No geographic breakdown available
U.S. trade for this product is not broken down by state or port in the latest Census Bureau release.
Monthly import values over time