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Items  | HT99  | HT98  | HT96  | HT90  | 
Al2O3,% ≥  | 99  | 98  | 96  | 90  | 
Fe2O3,% ≤  | 0.15  | 0.3  | 0.4  | 0.5  | 
SiO2,% ≤  | 0.3  | 0.35  | 0.38  | 0.4  | 
Bulk Density,g/cm3 ≥  | 3.2  | 3.2  | 3.1  | 3  | 
Apparent Porosity,% ≤  | 18  | 20  | 20  | 20  | 
Cold Breaking Strenght,Mpa  | 90  | 90  | 80  | 80  | 
Refractoriness Under Load,ºC(0.2Mpa,0.6%)  | 1740  | 1740  | 1720  | 1700±  | 
Heating Linear Change,%  | ±0.2 1600ºC*2h  | ±0.2 1600ºC*2h  | ±0.2 1550ºC*2h  | ±0.3 1550ºC*2h  | 




Iron & steel making industry  | Blast furnace,hot blast furnace(stove),pellet shaft furnace,hot metal ladle,steel ladle,tundish,eating furnace,soaking pit furnace,heat treatment furnace,refining furnace,reheating furnace,metal mixter furnace,cupola furnace etc thermal technology equipment  | ||||
Non-ferrous Metal industry  | Smelting furnace, reverberatory furnace etc  | ||||
Building materials industry  | Cement kiln,glass kiln,ceramic kiln,lime kins,kiln car,tunnel kiln,rotary kiln  | ||||
Energy&Incineration  | Coke oven,general boiler,power generation boiler,circulating fluidized bed boiler,electric furnace,carbon roasting furnace,waste incinerators  | ||||










