High Alumina Calcined Bauxite Refractory Grade
High alumina calcined bauxite (>85% Al2O3) designed for refractory castables and ramming mixes in steelmaking ladles. Classified under HTS 2606.00.00.30 due to its calcined state from bauxite and suitability for refractory applications requiring extreme heat resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for metallurgical or chemical grade
Lower purity calcined bauxite for metal extraction or chemicals falls under non-refractory subheadings.
If uncalcined natural bauxite
Uncooked bauxite ore is classified as natural under 2508, before calcination process elevates it to 2606.
If Additives turning it into prepared refractory mix shifts to chemical preparations in Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide chemical analysis reports (alumina, silica, iron oxide levels) as Customs often requests for verification
• Declare exact calcination temperature (>1400°C) to confirm refractory quality; uncalcined bauxite goes elsewhere
• Avoid bulk packaging pitfalls—use sealed bags to prevent contamination affecting refractory purity
Related Products under HTS 2606.00.00.30
Calcined Bauxite Refractory Grade 70/120 Mesh
This calcined bauxite is processed to a 70/120 mesh size, specifically for use in high-temperature refractory applications such as furnace linings. It falls under HTS 2606.00.00.30 as refractory grade calcined bauxite, distinguished by its high alumina content and thermal stability derived from bauxite ore.
Refractory Grade Calcined Bauxite 200 Mesh
Finer 200 mesh calcined bauxite used in precision refractory formulations for kilns and incinerators. It qualifies for HTS 2606.00.00.30 as calcined bauxite explicitly graded for refractory purposes, with optimized particle distribution for superior sintering.
Refractory Bauxite Aggregate for Ladle Castables
Specially graded calcined bauxite aggregate for steel ladle castable refractories. Falls under HTS 2606.00.00.30 as refractory grade calcined bauxite from aluminum ores and concentrates.
Guyana Refractory Calcined Bauxite
Premium calcined bauxite from Guyana deposits, refractory grade for glass furnace repair mixes. Under HTS 2606.00.00.30 for its calcined bauxite origin and high refractoriness index meeting industry standards.
Australian Calcined Bauxite Refractory 14x28 Mesh
Coarse 14x28 mesh calcined bauxite from Australia, refractory grade for rotary kiln linings. Classified in HTS 2606.00.00.30 as it meets the criteria for calcined bauxite suited to refractory manufacturing.