Magnesia-Chrome Taphole Bricks
Specialized refractory bricks for blast furnace tap-holes with >50% MgO/Cr2O3 composition resisting molten iron and slag abrasion. Conically shaped for precise fit. HTS 6902.10.50.00 for refractory constructional goods.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pig iron tap-hole clay
Non-ceramic ramming mixes classify as iron products.
If silica taphole refractories
Siliceous compositions use different provisions.
If parts of metallurgical machinery
Machinery-specific wear parts may follow equipment classification.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include blast furnace engineering drawings showing taphole integration
• Test cold crushing strength (>400 MPa typical)
• Ship with mud gun mass documentation if sold as system
Related Products under HTS 6902.10.50.00
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