Calcined Bauxite

Want to keep this datasheet? Save it now in your required format

Description

GNPGraystar offers Guyanese bauxite. Guyanese bauxite is the most refractory bauxite available in the world due to its higher alumina content and lower alkali and impurit content. Replacing Chinese bauxite with Guyanese bauxite results in a chemistry/performance upgrade in refractory mixes. In mortars and plastics, this bauxite will extend the shelf life over chinese bauxite considerably because it is less reactive in acid and phosphatebonded refractories.

The mineralogy of Guyanese bauxite is alpha alumina and mullite, so there’s no shrinkage or cracking when exposed to hot metal. This product actually has slight expansion at high temperatures versus the shrinkage in Chinese bauxite (containing alpha alumina and glass).

As a ceramic ball-milled product, this may also be used to substitute pricier calcined alumina material in bauxite and mullite mixes.

This material data has been provided by GNPGraystar Specialty Materials.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

All categories

Properties

General

Property	Value	Comment
Bulk density	3.1 - 3.2 g/cm³ Show Supplier Material materials with Bulk density of 3.1 - 3.2 g/cm³	ASTM C357
Loss on Ignition	0.5 % Show Supplier Material materials with Loss on Ignition of 0.5 %	max.
Water content	0.12 % Show Supplier Material materials with Water content of 0.12 %
	0.5 % Show Supplier Material materials with Water content of 0.5 %

Chemical properties

Property	Value	Comment
Aluminium	87.5 % Show Supplier Material materials with Aluminium of 87.5 %	min. Al₂O₃
Iron	1.75 Show Supplier Material materials with Iron of 1.75	max. Fe₂O₃
Silicon	7.5 Show Supplier Material materials with Silicon of 7.5	max. SiO₂
Titanium	3.5 Show Supplier Material materials with Titanium of 3.5	max. TiO₂

Technological properties

Property

Other

See picture part of the datasheet for available sizing

Calcined Bauxite

Description

Ashby charts

Materials by this supplier

Properties