Andalusite-Based Refractory Gun Mix from Germany
Gunning refractory with andalusite for aluminum reduction cell repairs. HTS 3816.00.20.50 classification for thermal shock resistance to 1500°C. Needle-like crystals enhance mullite formation.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Andalusite crystal orientation certs for performance claims
• Avoid kyanite confusion via mineral analysis