Dolomite Ramming Mass for Induction Furnaces
Dead-burned dolomite powder mixed for ramming into furnace linings, containing dolime for high-heat applications. Falls under HTS 6815.91.00 as an article containing dolomite in dolime form. Used in steel foundries for lining induction furnaces.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If quicklime or hydrated dolime without fabrication
Unprocessed lime and dolomite classify under Chapter 25 minerals.
If chemically modified as refractory cement
Refractory cements with binders shift to Chapter 38 prepared binders.
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Import Tips & Compliance
• Submit particle size and CaO/MgO ratio specs to prove dolime content
• Avoid bulk powder packaging that resembles Chapter 25 raw materials
• Declare intended ramming use to distinguish from castable refractories
Related Products under HTS 6815.91.00
Magnesite Refractory Bricks
High-temperature resistant bricks primarily composed of magnesite, used in lining industrial furnaces and kilns. They fall under HTS 6815.91.00 due to their magnesite content and classification as articles of mineral substances not elsewhere specified. These bricks provide thermal insulation and corrosion resistance in steelmaking and glass production.
Magnesia Chrome Refractory Shapes
Preformed refractory blocks combining magnesia and chromite for rotary kilns in cement production. HTS 6815.91.00 applies due to dual magnesite and chromite composition. Offers superior resistance to chemical attack and thermal shock.
Dolime-Based Heat Insulation Boards
Rigid insulation panels made from dolime aggregates for high-temperature industrial ovens. Falls under HTS 6815.91.00 for dolomite/dolime content in fabricated form. Lightweight alternative to fiber insulation in petrochemical plants.
Periclase Furnace Roof Tiles
Curved magnesia tiles for electric arc furnace roofs in steel production. Classified HTS 6815.91.00 for periclase magnesia composition as mineral articles. Designed for extreme temperatures above 1700°C.
Magnesite Ladle Nozzle Inserts
Replaceable inserts for steel ladle nozzles made from dense magnesite. HTS 6815.91.00 for magnesite-based mineral articles used in continuous casting. Ensures controlled molten steel flow.
Chromite Investment Casting Shells
Pre-made ceramic shells with chromite flour stucco for precision investment casting. Under HTS 6815.91.00 for chromite content in foundry articles. Used for aerospace and turbine blade production.