Magnesia Slide Gate Plate
Magnesia-carbon ceramic slide gate plate for controlling molten steel flow in ladle casting. Specifically named in HTS 6903.90.00 as refractory slide gates for steelmaking. High-fired refractory withstands 1700°C+ temperatures.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If carbon content >50% without magnesia matrix
Pure carbon refractories in 6902.10; magnesia-carbon composites are 'other' refractories
If imported mounted in complete pig iron ladle
Assembled with metal container, classifies as iron/steel article per GRI 2(a)
If non-refractory carbon/silica shapes
Chapter 68 for non-fired or non-refractory carbon articles
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Import Tips & Compliance
• Steel industry import license may expedite; document MgO content >80% for classification support
• Common issue: plates with metal inserts classified partly under Chapter 73
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