Dolomite Refractory Bricks from Japan
Refractory bricks derived from fired dolomite with high CaO and MgO content exceeding 50%, used in steel ladles and electric arc furnaces. These provide basic slag resistance essential for secondary steelmaking. HTS 6902.10.50.00 covers these as 'other' high Mg/Ca oxide refractories.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Test water absorption per ASTM C373 if challenged on ceramic body definition
• Separate from dead-burned magnesite imports which may fall under different chemical headings
• Provide steel industry end-user letters to support refractory classification over general construction goods