Niobium Ingot 99.9% Pure from Mexico
A solid cast block of unwrought niobium metal with 99.9% purity, used primarily in aerospace and superconducting applications. This falls under HTS 8112.92.4000 as unwrought niobium, excluding alloys where niobium is less than 99% by weight per Chapter 81 notes. It is typically produced by electron beam melting for high purity.
Duty Rate — Mexico → United States
4.9%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Verify purity certificate from supplier exceeds 99% niobium to avoid reclassification as Chapter 81 alloy
• Include material safety data sheets (MSDS) documenting non-hazardous handling for niobium