Sintered Magnesia 92% with Iron Oxide

Dead-burned magnesia containing 92% MgO with controlled iron oxide additions for enhanced sintering, used in basic oxygen furnace refractories. Properly classified in HTS 2519.90.10.00 as sintered magnesia permitting small quantities of other oxides added before sintering.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFreeFree
🇲🇽MexicoFreeFree
🇨🇦CanadaFreeFree
🇩🇪GermanyFreeFree
🇯🇵JapanFreeFree

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2530.90.20Higher: 27.9% vs Free

If natural micaceous iron oxide content dominates

Chapter notes specifically direct micaceous iron oxides to heading 2530 regardless of other magnesia content.

3816.00.20Higher: 38% vs Free

If mixed with binders for investment casting molds

Magnesia refractories containing chemical binders become investment casting refractories in 3816.

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Import Tips & Compliance

Batch certificates must show oxide additions occurred pre-sintering, not post-processing blending

Iron oxide content >5% may trigger review for micaceous iron oxide classification under 2530.90

Specify grain sizing (0-5mm typical) matches refractory ramming mix requirements

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