BNZ Materials 9 x 4.5 x 3" 2800°F Insulating Firebrick

Temperature Use Limit (normal oxidizing atmosphere): 2800°F / 1538°C. 500°F / 2.3. 1000°F / 2.4. ASTM Classification: 28. Silica – SiO2: 30.5. Alumina – Al 2 O 3: 67.0. Chemical Analysis 1093°C / 0.39.

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