Fireclay Bricks For Hot-Blast Stoves

General Fireclay Bricks For Hot-Blast Stoves Physical And Chemical IndicatorsItems IndicatorsRN-42RN-40RN-36w(Al2O3)/% ≥424036Volume and Density /(g/cm3)2.00 2.202.00 2.202.00 2.20Apparent Porosit/% ≤22(24)22(24)22(24) Cold crushing strength / Mpa ≥353025 0.2MPa Refractoriness Under Load /°C ≥141013501300 Permanent Change In The Heating/%1400°C*2h—0.4 0——1350°C *2h——0.5 0—0.5 0Thermal shock resistance Provide dataMark 1:Data in brackets index regenerator checker brick; Mark 2:Volume density volume targets for the design of the reference brick,no assessment.The elegant design with the most competitive price will meet your interest. If you are interested in our product , please contact with us! We will provide good service!