Silica Ramming Mass Refractory Mix from Germany
A powdered refractory composition of high-purity silica and borax binder used for ramming into linings of induction furnaces. Classified under HTS 3816.00.20.50 as 'other' refractory mortars excluding dolomite mixes and heading 3801 products. It provides excellent thermal shock resistance for molten metal containment up to 1700°C.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Provide furnace application specs and silica purity (>98%) certificates to distinguish from general silica powders
• Ensure borax content is declared in SDS; bulk packaging requires proper ventilation labeling for dust hazards