Ruby Fused Alumina Powder 99.5% Al2O3 from Mexico
Ultra-fine ruby-colored fused alumina powder with 99.5% aluminum oxide, refined for optical and lapping applications. Classified in HTS 2818.10.20.10 as high-purity, colored artificial corundum that is pulverized. Provides superior hardness for metallurgical polishing and thin-film coatings.
Duty Rate — Mexico → United States
1.3%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include XRF spectrometry results proving >97.5% Al2O3 and ruby pigmentation
• Specify micron size (e.g
• D50=1-5μm) to validate 'refined/pulverized' form