Magnesia-Chrome Taphole Bricks
Magnesia-Chrome Taphole Bricks are specialized refractory bricks designed for blast furnace tap-holes, with a composition exceeding 50% MgO and Cr2O3 to resist molten iron and slag abrasion. These bricks are conically shaped for a precise fit and are fired after shaping to achieve the required density and strength. They are classified under 6902.10.00 as refractory ceramic constructional goods with the specified chemical composition.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags (1)Show detailsHide detailsHCConsumer Products SafetyMay be required
- HC
Consumer Products Safety · May be required
May require HC Consumer Products Safety depending on intended use (HC21) and Canadian product category (HC29, HC30, HC31, HC32, HC33, HC34, HC35, HC36, HC37); or intended use (HC22, HC23, HC24, HC26, HC27) and Canadian product category (HC37). Matching criteria: Starts With 69021000; Starts With 69021000; Equal To 6902100010; Equal To 6902100090; Equal To 6902100010; Equal To 6902100090. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
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 the chemical composition does not meet the 50% threshold
Other refractory bricks with different compositions, such as high-alumina or silica-based, fall under this heading.
If the product is not a brick but a shaped refractory article
This heading covers other refractory ceramic articles, including tap-hole sleeves or nozzles.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Clearly describe the product as 'taphole bricks' in the import documentation to align with the tariff item's scope
• Confirm the MgO/Cr2O3 content exceeds 50% with a lab analysis
• Be aware that the CBSA may require proof of firing; keep production records available
Related Products under Tariff item 6902.10.00
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Specialty anchor tiles with high CaO content for securing fiber modules in furnace linings, containing over 50% CaO. Designed for easy installation in high-temperature applications.
Calcium Ferrite Refractory Bricks
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Chrome-Magnesite Checker Bricks
Perforated checker bricks with over 50% Cr2O3 and MgO for regenerative heat recovery in glass and metallurgical furnaces. The lattice structure maximizes heat exchange efficiency.
Chromite-Magnesite Refractory Tiles
Fired ceramic tiles containing over 50% combined MgO and Cr2O3, designed for lining glass tank furnaces and copper smelters. These tiles offer excellent slag resistance and are thinner than blocks for curved surfaces.
Chromium-Corundum Refractory Bricks
High-chrome corundum bricks with Cr2O3 over 50% for glass furnace superstructures resisting batch carryover. The dense microstructure prevents glass penetration.
Direct-Bonded Magnesia Chrome Bricks
Premium refractory bricks produced by direct bonding of magnesia and chrome ore grains, with over 50% MgO/Cr2O3, for RH degasser vessels in steelmaking. These bricks offer exceptional creep resistance at high temperatures.