QN-23 High quality refractory brick

QN-JMinsulation brick 1.Thermal conductivity w/m .k (400°c) 0.15. 2.Lower content in impurities. 3.Safty application temperature:1260 °c. 4.Bulk density:0.50 5.Cross-bending strength(modulus of rapture):0.7Mpa. 6.Size:230*114*64/76mm,or according your requirements. Index QN-JM-23 Safety application temperature °C 1260 Bulk density g/cm3 0.5 Crushing strength Mpa ≥ 1.0 Reheat linear change % ≤ 1230×24h -0.3 Reversible thermal expansion 1090 °C % ≤ 0.5 Thermal Conductivity w/m.k 400 0.15 600 0.17 800 0.19 1000 0.24 Al2O3 % ≥ 37 Fe2O3 % ≤ 1.0 SiO2 55