If you are looking for customized and cheap blast-furnace brick made in China from a blast-furnace brick factory, Zibo Qunhui Refractory Co.,Ltd is always at your service.Technical IndexItemHA60AL2O3 %   (min)60Fe2O3%   (max)2.5Refractoriness (°C)1780Refractoriness under load, 0.2MPa, (°C)1480Apparent porosity (%)22Bulk density (g/cm³)2.3Cold crushing strength (MPa)44Thermal expansion at 1000°C (%)0.4Application1. Carbon bake furnaces in the aluminum industry2. Preheat zones and cyclones of rotary cement kilns3. Insulation for glass tanks4. Fireplace and pizza ovens5. Coke ovens6. Blast furnaces7. Reheating furnaces8. Suspended roofs9. Lime kilns10. Chimney