Calcium Silicon 24/70 Deoxidizer Lump from Japan
This ferroalloy grade with 24% calcium and 70% silicon is supplied in lump form (10-50mm) for use in secondary steel refining. Classified under HTS 7202.99.20.00 as calcium silicon, it provides both deoxidation and desulfurization functions in ladle metallurgy.
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
• Lump size specification (10-100mm typical) should be documented; fines under 10mm may face different handling requirements
• Include safety data sheets noting pyrophoric properties when wet; pitfall is incorrect hazmat class (often UN1405)
• Confirm no cored wire format, as that changes classification to 8311.20