Refractory BricksAlumina–silica and corundum bricks

Anti-Stripping High Alumina Brick

High alumina brick with excellent thermal shock and spalling resistance and resistance to alkali, sulfur and chlorine attack, in grades GKBL70 and KBL75.

Grades / types: GKBL70, KBL75

Product overview

Anti-stripping high alumina brick has excellent thermal shock resistance and spalling resistance, together with resistance to alkali, sulfur and chlorine corrosion. It has a high refractoriness under load and high strength at high temperature, and good resistance to alkali and cement clinker attack.

Key characteristics

Excellent thermal shock resistance and spalling resistance
Resistance to alkali, sulfur and chlorine corrosion
High refractoriness under load and high hot strength
Resistance to alkali and cement clinker attack

Technical data

Physical and chemical specification
Property	Unit	GKBL70	KBL75
Al₂O₃	%	≥70	≥75
ZrO₂	%	≥6.0	—
Fe₂O₃	%	≤1.5	≤1.5
Bulk Density	g/cm³	≥2.55	≥2.6
Apparent Porosity	%	≤22	≤20
Cold Crushing Strength (CCS)	MPa	≥60	≥70
Refractoriness Under Load, 0.2 MPa (RUL)	℃	≥1470	≥1520
Thermal Shock Resistance (TSR) (1100℃ Water)	cycles	≥25	≥20