Refractory Brick/Eaf Roof High Alumina Brick

Basic InfoModel NO.: AL80%Feature: Long Time MaterialsShape: BrickSize: R42,Kr42,R43,Kr43Specification: ASTM StandardHS Code: 69022000Refractoriness (℃): 1770< Refractoriness< 2000Type: Refractory MaterialMaterial: Alumina BlockTrademark: YF RefractoryOrigin: Shandong ChinaProduct DescriptionRefractory Brick/ Chemical Bond EAF Roof High Alumina BrickRefractory brick used to EAF Roof, are made of high quality of bauxite ,Chemical Bonded , with specifications as follow :Al2O3: 80%Fe2O3: 1.0%Bulk Density : 2.8 g/cm3C.C.S.: 100 MpaR.U.L.:1510 CItem Code below avaiable : R20, R30, R32, R42, R52, R62, R72, R43, R53, R63, R73, R93KR20,KR30,KR32,KR42,KR52,KR62,KR72,KR43,KR53,KR63,KR73,KR93D1N, D2N, D3N, D4N, D5N, D6N, D7N, D8N, D9N, D6NS , D6NSAItemIndexInternational code   nameSK35SK36SK37SK38SK40Chinese code nameLZ-48LZ-55LZ-65LZ-75LZ-80Al2O3 min %4855657580Fe2O3 max %22222Refractoriness oC min.17501770179017901790Refractoriness under Load C min.14201470150015201530Permanent Linear Change % 1450 C×2h1500 C×2h1500 C×2h1500 C×2h1500 C×2h+0.1~-0.4+0.1~-0.4+0.1~-0.4+0.1~-0.4+0.1~-0.4Apparent Porosity max. %2222232321Cold Crushing Strength mim.3944495465



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