Dead Burned Calcined Dolomite for Steel Flux from Japan
High-purity calcined dolomite dead-burned at 1700°C+ for use as fluxing agent in basic oxygen steelmaking converters. HTS 2518.20.00.00 covers this sintered/calcined form, differentiated from raw dolomite by its reactivity and thermal stability.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include XRF analysis showing >40% MgO post-calcination to validate refractory specification
• Declare particle size distribution if powdered to avoid confusion with agglomerated products
• Confirm no additives present, as mixtures could fall under 3824 prepared binders