High Chrome Bricks

High chrome bricks have the characteristics of excellent corrosion resistance, high cold crushing strength, excellent wear resistance, high temperature resistance, and good thermal shock resistance. They are excellent materials for resisting corrosion from coal slag and molten glass. They are mainly used in glass melting furnaces, fiberglass kilns, gasifiers, etc.

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Physical and Chemical Indicators

Item	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	≥ 4.22
Cold Crushing Strength (MPa)	≥ 120	≥ 120	≥ 120	≥ 120
Refractoriness Under Load (0.2MPa, ℃)	≥ 1660	≥ 1670	≥ 1670	≥ 1680

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