calcined bauxite

calcined bauxite Specification

Application
Firebricks & Castables Ramming Mass & Monolithics Tundish / Ladle linings Abrasive grains & blasting media Anti-skid road surfacing (HFST) Foundry fluxes, welding fluxes

Form
Lumps / Grits / Powder

Chemical Composition
Al O : 70 92% SiO : 5 8% Fe O : 1 2% TiO : 2 3.5% LOI: 0.5%

Water Absorption
0.5%

Melting Point
1,850 2,000 C

Purity(%)
70% 92% Al O (as per grade)

Hardness (%)
8.5 9 (Mohs Scale)

Surface Finish
Rough natural surface (anti-polishing)

Density
3.1 3.2 g/cm Gram per cubic centimeter(g/cm3)

Usage & Applications
Steel Industry: Refractory linings in blast furnaces, converters, ladles Cement & Glass: Kiln and furnace linings Construction & Roads: High-friction surfacing for highways & bridges Abrasives: Grinding, polishing, blasting media Oil & Gas: Proppants for hydraulic fracturing Foundry & Welding: Fluxes and molds

Product Type
Mineral Refractories

Types of Refractories
Monolithic Refractory

Shape
Granule

Porosity
Very low, dense structure

Dimensional Stability
Irreversible

Strength
High mechanical strength & abrasion resistance

Specific Gravity
3.10 3.25 g/cm

Thermal Conductivity
Good thermal conductivity with high resistance to thermal shock Watt/Meter/K (w/(m.k)

Color
Greyish / Brownish (depending on grade)

calcined bauxite Trade Information

Minimum Order Quantity
100 Tons

FOB Port
MUNDRA PORT, POEBANDER PORT, OKHA PORT

Payment Terms
Cash on Delivery (COD), Cash Advance (CA), Cash in Advance (CID), Cheque, Letter of Credit at Sight (Sight L/C), Telegraphic Transfer (T/T), Letter of Credit (L/C)

Supply Ability
5000 Tons Per Month

Delivery Time
7 Days

Sample Available
No

Sample Policy
Free samples available with shipping and taxes paid by the buyer

Packaging Details
Packaging Details: 50 kg HDPE bags with liner 1 MT Jumbo bags (with/without pallet) Customized packing available on request

Main Export Market(s)
Asia, Central America, South America, Australia, North America, Eastern Europe, Western Europe, Middle East, Africa

Main Domestic Market
All India

Certifications
ISO 9001:2015, SGS / Intertek Test Report (on request)

About calcined bauxite

Calcined Bauxite is a naturally occurring raw bauxite ore that has been thermally treated at 8001700 C to remove moisture, volatile impurities, and improve its physical and chemical properties. The calcination process enhances alumina content (AlO), reduces impurities, and produces a hard, dense, chemically stable material with high thermal resistance, abrasion resistance, and low iron content.

It is widely used in refractories, high-friction road surfacing, abrasives, steel making, cement, glass, and non-ferrous industries. With a Mohs hardness of 8.59 and bulk density of 3.13.2 g/cm, Calcined Bauxite provides excellent performance in high-temperature and wear-resistant applications.

Key Features