Standard and special clay refractory

1.Properties and Uses: clay brick refractory is weak acid, thermal stability, suitable for ceramic frit kiln, sodium silicate furnaces, glass furnace, stove and other parts of the furnace, hot store room wall, furnace bottom, lined with all kinds of boilers and flue, chimney liner, smoke room. 2. Product specification: Standard form, normal standard, shaped, and special shaped bricks. Physical and chemical properties of clay brick. 3. Be use in various kiln because of its wide application, cheap. General tray package. Among all of the refractory, it is the most widely used. 4. Molding method: by down draft kiln or tunnel kiln fired, the general sintering temperature is 1280-1350 degrees. Item N-1N-2aN-2bN-3aN-3bN-4N-5N-6Refractoriness °C ≥17507130173017101710169016701580Softening temperatureunder load 2kg/cm2 °C1400135013201300Permanent linear change % 1400°C 2h+0.1-0.4+0.1-0.5+0.2-0.513500°C 2h+0.2-0.5+0.2-0.5+0.2-0.5+0.2-0.5Apparent porosity %2224262426242628Cold crushing strength kgf/cm2300250200200150200150150