Chapter 3816 — Customs Tariff Headings
Products classified under Tariff item 38.16
Andalusite-Based Refractory Guniting Mix
Pneumatic-applied mix with andalusite for wear-resistant coatings in blast furnaces. This product is a refractory composition other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Basic Dolomite Ramming Mix
A refractory composition primarily consisting of dead-burned dolomite, used for ramming induction furnace linings in steelmaking. This product is a dolomite ramming mix, which is explicitly included in tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Castable Refractory Mix for Boilers
A pourable, high-purity alumina castable for repairing boiler walls and combustion chambers. This is a refractory concrete that cures to withstand rapid temperature changes, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Chrome-Free Magnesia Refractory Cement
Eco-friendly cement using magnesia and spinel for ladle linings, avoiding hexavalent chrome risks. This is a refractory cement other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Dead Burnt Dolomite Ramming Mix
High-fired dead burnt dolomite specifically processed into ramming mix for cupola furnace linings in iron foundries. This is a dolomite ramming mix, directly matching the description of tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Dolomite-Silica Ramming Mix
Blended ramming mix for coreless induction furnaces, modified with silica in addition to dolomite. This product is a refractory composition other than pure dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Furnace Bottom Dolomite Ramming Mix
Coarse-grained dolomite ramming mix for initial lining of induction furnace bottoms, offering excellent thermal shock resistance. This product is a dolomite ramming mix, which is specifically named in tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00High-Alumina Refractory Cement
A cement composition primarily made from calcined alumina and calcium aluminate, designed for high-temperature applications in furnaces and kilns. This is a refractory cement other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00High-Purity Dolomite Ramming Mix
Premium dead-burned dolomite ramming mix with over 95% MgO and CaO content for coreless induction furnaces in foundries. This specialized dolomite-based formulation is a dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Insulating Refractory Castable
Lightweight castable with ceramic fiber and vermiculite for low thermal conductivity furnace backings. This is a refractory concrete other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Magnesia-Chrome Refractory Concrete
A ready-mix concrete using magnesia, chrome ore, and phosphate binders for erosion-resistant linings in non-ferrous metal smelters. This is a refractory concrete other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Magnesia-Dolomite Ramming Mix
Blended ramming mix of 60% magnesia and 40% dolomite for ladle maintenance in secondary steelmaking. This is a dolomite-based ramming mix designed for hot repairs in molten metal containment, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Phosphate-Bonded Refractory Mortar
Chemical-setting mortar with monoaluminum phosphate binder for fast repairs in steel plant ladles. This is a refractory mortar other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Steel Mill Dolomite Ramming Mass
Industrial-grade dolomite ramming mass for medium-frequency induction furnaces in steel rolling mills. This product is a dolomite ramming mix due to its dead-burnt composition and pneumatic ramming application, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
3816.00.00Synthetic Dolomite Ramming Mix
Engineered dolomite ramming mix using synthetic dead-burned magnesite and lime for electric arc furnace (EAF) bottoms. This meets the dolomite ramming mix definition for high-slag resistance, falling under tariff item 3816.00.00, and is not a product of heading 38.01.