High Purity Magnesia Refractory Shapes
High Purity Magnesia Refractory Shapes are custom-shaped refractory components with a magnesia (MgO) content of 95% or more, designed for specialized furnace zones such as ladle impact pads. These products are precision fired after shaping to maintain dimensional stability and withstand extreme thermal conditions. They fall under tariff item 6902.10.00 because they are refractory ceramic constructional goods containing more than 50% by weight of MgO.
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 MgO content is 50% or less by weight
This heading covers other refractory bricks, blocks, tiles and similar refractory ceramic constructional goods not containing more than 50% of Mg, Ca or Cr elements.
If the product is a refractory article not classified as constructional goods
Other refractory ceramic articles, such as crucibles or furnace linings, may fall under this heading if they are not bricks, blocks or tiles.
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
• Ensure the MgO content is clearly documented in the commercial invoice to support classification under 6902.10.00
• Verify that the goods have been fired after shaping, as unfired or low-temperature processed articles are excluded from Chapter 69
• Consult the CBSA's advance ruling process if you are uncertain about the tariff classification
Related Products under Tariff item 6902.10.00
Calcium Aluminate Refractory Anchor Tiles
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
Refractory bricks incorporating calcium ferrite phases with over 50% CaO equivalent for waste incinerator linings. These bricks resist alkali corrosion from flue gases.
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.