Refractory bricks Item No. Item SK-32SK-34SK-36Al2O3 ( % ) 303850Fe2O3 ( % )32.52Refractoriness ( SK ) 32/1710 34/1750 36/1790 Refractoriness under load, 0.2 Mpa, Ta. ( ) 130013501450Porosity (%) 22-2619-2320-24Bulk density ( g/cm3 ) 2.052.10-2.152.30-2.40Cold crushing strength ( Mpa ) 252545Thermal expansion at 10000.60.60.3
fire clay bricks