CNBM International Corporation  

Product Name: Fireclay Brick for Industry Furnace Model NO.: RN40, GZN42, AL42R, SK35 Material: Clay Shape: Brick Type: Refractory Material Feature: Long Time Materials Refractoriness (?): 1580< Refractoriness< 1770 Al2O3: More Than 40 Trademark: CMAX Transport Package: Pallets Origin: China HS Code: 69022000 Product Description GENERAL INFORMATION:Fireclay bricks are made from clinker clay by mixing, forming, drying, sintering and machining. The Al2O3 content ranges from 36% to 42%.Fireclay bricks feature stable mechanical strength and good thermal shock resistance, withstanding high temperature up to 1750.They are commonly applied as refractory lining directly exposed to heat or backup insulation layer in all kinds of industrial kiln or laboratory furnace.ADVANTAGES:Low thermal conductivityHigh refractorinessHigh mechanical strengthExcellent thermal shock resistanceNon standard sizes and shapes are available upon requestAPPLICATIONS:Petrochemical process heaterHeat treatment furnaceCeramic firing kilnCement rotary kilnGlass melting tankBackup insulationTECHNICAL data:ITEM:ZGN42 GN42 RN42 RN40 RN36Al2O3 ≥ %:42 42 42 40 36Fe2O3 ≤ %:1.6 1.7 - - -C. C. S. Mpa≥ :58.8 49 29.4 24.5 19.6Refractoriness≥ º C:1750 1750 1750 1730 1690Permanent Linear Change ≤ %1350º C x 2hrs: - - - 0~-0.3 0~-0.5Permanent Linear Change ≤ %1450º C x 3hrs: 0~-0.2 0~-0.3 0~-0.4(x 2hrs) - -Refractoriness under Load(0.2 Mpa)≥ :1450 1430 1400 1350 1300Apparent Porosity ≤ %:15 16 24 24 26Note:1) ZGN42 and GN42 are used in blast furnace.2) RN42, RN 40 and RN 36 are used in hot blast stove.3) Fireclay bricks can be designed and manufactured upon customers requirements.