Items L-1000 L-1260 L-1420 L-1600 working temp(íµ) 1000 1260 1200 1350 Max. Working temp(íµ) 1260 1260 1350 1450 Bulk density (g/cm3) 160-250 160-250 160-250 160-250 Thermal shrinkage for24hrs ín 1150íµ 1250íµ 1350íµ 1400íµ 4 4 4 4 Chemical components% Al2o3 45~47 47~49 53~55 38~54 Sio2+al2o3 97~98.5 98~99 98.5~99 83~89 Zro2 íí-íí -íííí 10~18 -
