Product Specifications

Various specifications of sand and powder

Application Scope

Sliding nozzle, ladle castables, prefabricated parts

Products Description

Tabular corundum is a pure, additive-free sintered corundum with a coarse and well-developed α-Al2O3 crystal structure. Platy corundum shows a plate-like crystal structure under the SEM electron microscope. It has small pores and many closed pores, and its porosity is roughly the same as that of fused corundum. It has high purity, good volume stability, and minimal re-burning shrinkage. It is used to produce resistant products. The material or castable has good thermal shock stability and flexural strength after high temperature treatment. ...

Tabular corundum is a pure, additive-free sintered corundum with a coarse and well-developed α-Al2O3 crystal structure. Platy corundum shows a plate-like crystal structure under the SEM electron microscope. It has small pores and many closed pores, and its porosity is roughly the same as that of fused corundum. It has high purity, good volume stability, and minimal re-burning shrinkage. It is used to produce resistant products. The material or castable has good thermal shock stability and flexural strength after high temperature treatment.

Application scope

Tabular corundum can be used as the main component in aluminum carbon, aluminum-magnesium carbon, magnesia-aluminum carbon, magnesium spinel, and aluminum-chromium refractory bricks, or as a rich alumina component introduced into high-aluminum refractory bricks. Shaped refractory materials can be widely used in steel, casting, ceramics and other industries. The application in the steel industry covers almost the entire process of iron and steelmaking.

Technical Parameters

use	Specification		Main chemical components/%				Physical indicators
			Al2O3	Na2O	SiO2	Fe2O3	Apparent porosity%	Volume density g/cm3
Refractory materials	size	0-1mm 1-3mm 3-5mm 5-8mm 8-12mm	≥99.0	≤0.4	≤0.3	≤0.1	≤5.0	≥3.5
	Power	180#-0 240#-0 320#-0	≥98.5		≤0.3	≤0.1