高Alumina砖

Features: 1) High alumina brick LZ-48:a) Al2O3 (%): 48b) Fe2O3 (%): 2.0c) Refractoriness (SK): 34d) Refractoriness under load, 0.2MPa, KD (oC): 1,450e) Permanent change at 1,450oCx 2hrs, (%): +0.1 - -0.4f) Porosity (%): 22g) Cold crushing strength (Mpa): 35 2) High alumina brick LZ-75:a) Al2O3 (%): 75b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, KD, (oC): 1,520e) Permanent change at 1500 0Cx 2hrs, (%): +0.1 - -0.4f) Porosity (%): 23g) Cold crushing strength (MPa): 30 3) High alumina brick LZ-85:a) Al2O3 (%): 85b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, KD, (oC): 1,550e) Permanent change at 1500 0Cx 2hrs, (%): +0.1 - -0.4f) Porosity (%): 23g) Cold crushing strength (MPa): 55 4) High alumina brick DL-80 for electric furnace roofs:a) Al2O3 (%): 80b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, KD, (oC): 1,530e) Permanent change at 1500 0Cx 2hrs, (%): +0.2 - -0.4f) Porosity (%): 21g) Cold crushing strength (MPa): 75 5) High alumina brick DL-75 for electric furnace roofs:a) Al2O3 (%): 75b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, KD, (oC): 1,520e) Permanent change at 1450 0Cx 2hrs, (%): +0.1 - -0.4f) Porosity (%): 21g) Cold crushing strength (MPa): 65 6) Unburned alumina brick BLD-80 for electric furnace roofs:a) Al2O3 (%): 80b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, KD, (oC): 1,530e) Porosity (%): 20f) Cold crushing strength (MPa): 60g) 7) Alumina brick CN-40 for ladle and refining furnace:h) Al2O3 (%): 42i) Fe2O3 (%): 2.0j) Refractoriness (SK): 34k) Refractoriness under load, 0.2MPa, KD, (oC): 1,430l) Permanent change at 1,400oC x 2hrs, (%): +0 - -0.3m) Porosity (%): 18n) Cold crushing strength (MPa): 39.2 8) High alumina brick CL-75 for ladle and refining furnace:a) Al2O3 (%): 75b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, KD, (oC): 1,510e) Permanent change at 1,500oCx2hrs, (%): +0.1 - -0.5f) Porosity (%): 28g) Cold crushing strength (MPa): 40 9) Alumina brick CL-80 for ladle and refining furnace:a) Al2O3 (%): 80b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, KD, (oC): 1,530e) Permanent change at 1550 0Cx 2hrs, (%): +0.1 - -0.5f) Porosity (%): 24g) Cold crushing strength (MPa): 50 10) Corundunm-spinel brick MA-A89 for ladle and refining furnace:a) Al2O3 (%): 89b) Fe2O3 (%): 0.5c) SiO2 (%): 1.5d) Refractoriness (SK): 36e) Refractoriness under load, 0.2MPa, T2, (oC): 1,650f) Permanent change at 1,600oCx 3hrs, (%): +0.2 - -0.2g) Porosity (%): 17h) Cold crushing strength (MPa): 80 11) Special unburned alumina brick UH85K for ladle and refining furnace:a) Al2O3 (%): 85b) Fe2O3 (%): 2.0c) Refractoriness (SK): 36d) Refractoriness under load, 0.2MPa, T2, (oC): 1,500e) Permanent change at 1500 0Cx 5hrs, (%): +0f) Porosity (%): 19g) Bulk density (g/cm³): 2.8h) Cold crushing strength (MPa): 50