Beryllium Copper 8mm Sheet for Mold Tooling from Mexico
An 8mm thick beryllium copper sheet designed for high-precision plastic injection mold inserts requiring excellent thermal conductivity. Falls under HTS 7409.90.10.30 as a copper alloy plate/sheet >0.15mm thick, specifically beryllium copper over 5mm, per Chapter 74 notes. Distinguished from brass or bronze by alloy predominance.
Duty Rate — Mexico → United States
53%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Include detailed alloy analysis report confirming beryllium copper (not brass/tin-dominant bronze)
• Avoid common pitfall of mismeasuring thickness—use calipers and photos for CBP verification
• Label shipments with toxicity warnings for beryllium dust during customs inspection