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Steel Fire Door Intumescent Hinges

Steel hinges with intumescent strips for 90-minute rated fire doors in buildings. Classified as door mountings under HTS 8302.41.60.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.9%+50.0%53.9%
🇲🇽Mexico3.9%+25.0%28.9%
🇨🇦Canada3.9%+25.0%28.9%
🇩🇪Germany3.9%+25.0%28.9%
🇯🇵Japan3.9%+25.0%28.9%

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Import Tips & Compliance

UL fire rating documentation essential for building classification

Intumescent material <10% weight maintains steel heading

Specify door frame compatibility over general hardware use