Slide Gate Refractory Block
Precision-fired blocks with high alumina content (>60% Al2O3) for molten steel slide gate valves in continuous casting. Resists thermal shock and erosion from liquid metal. Covered by 6902.20.50 as other refractory constructional blocks.
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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 simpler shapes without precision tolerances
Less specialized refractory shapes use broader 6903 classification.
If metal-bodied with ceramic insert
Valve assemblies with refractory liners classify as metal valves.
If chromia or zirconia dominant composition
Other refractory oxides have different subheading provisions.
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Import Tips & Compliance
• Include tolerance specs (±0.5mm) proving precision refractory machining
• Pair with nozzle documentation if imported as functional set
• Test for metal penetration resistance specific to steelmaking
Related Products under HTS 6902.20.50
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