Refractory BricksZirconia and chrome bricks for glass and gasifier service

High Chrome Brick

High-chromia brick with excellent corrosion resistance, high cold crushing strength, excellent wear resistance and good thermal shock resistance, for coal slag and molten glass contact. Grades GGZ-75 to GGZ-95.

Grades / types: GGZ-75, GGZ-85, GGZ-90, GGZ-95

Product overview

High chrome brick has excellent corrosion resistance, high cold crushing strength, excellent wear resistance, high temperature resistance and good thermal shock resistance. It is a material of choice against coal slag and molten glass attack.

Key characteristics

Excellent corrosion resistance
High cold crushing strength
Excellent wear resistance
High temperature resistance and good thermal shock resistance
Resistance to coal slag and molten glass

Technical data

Physical and chemical specification
Property	Unit	GGZ-75	GGZ-85	GGZ-90	GGZ-95
Cr₂O₃	%	≥75	≥85	≥90	≥93
Cr₂O₃+Al₂O₃+ZrO₂	%	≥98	≥98	≥98	≥98
Fe₂O₃	%	≤0.3	≤0.3	≤0.3	≤0.3
K₂O+Na₂O	%	≤0.2	≤0.2	≤0.2	≤0.2
Apparent Porosity	%	≤18	≤18	≤16	≤16
Bulk Density	g/cm³	≥3.9	≥4.2	≥4.22	≥4.25
Cold Crushing Strength (CCS)	MPa	≥120	≥120	≥120	≥120
Refractoriness Under Load, 0.2 MPa (RUL)	℃	≥1660	≥1670	≥1670	≥1680