Zircon-Based Refractory Ramming Mass
A dry ramming mix of zircon flour and clay for induction furnace linings, rammed in place for dense structure. Falls under HTS 3816.00.20 as other refractory compositions, resisting molten metal attack up to 1750°C. Key for foundries.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If explicitly dolomite-based
Dolomite ramming has specific subheading priority.
If supplied as pre-rammed furnace components
Assembled crucibles/articles are Chapter 69.
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Import Tips & Compliance
• Provide zircon purity assay (>65% ZrO2) to distinguish from generic mixes
• Use ventilated packaging to prevent dust; comply with IMDG for sea freight
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