1. Type:SK-30, SK-32, SK-34 2. Packing in pallets 3. STD: 230X114X65MM Main Properties ItemIndex SK-30SK-32 SK-34Al2O3 % min353842Fe2O3 % max2.5 2.52.5Refractoriness °Cmin170017201740Linear change on reheating %(1400°C, 2h)+0.1~ -0.4Apparent porosity % max24Cold crushing strength Mpa min253035Bulk Density, g/cm3 min2.02.152.2 Refractory bricks