Product introduction
        • Name: Insulating Firebricks
        • No.: 127
        • Views : 94

        series Insulating bricks

        Index /brand

        grade-23

        grade-26

        grade-28

        grade-30

        grade-32

        Classification
        temperature                  ℃

         

        1260

         

        1430

         

        1540

         

        1650

         

        1760

        Bulk density                  kg/m3

        580

        800

        890

        1030

        1250

        Moudulus of rupture           MPa

        0.9

        1.5

        1.6

        1.7

        2.0

        Cold crushing strength         MPa 

        1.2

        2.4

        2.6

        2.8

        3.4

        Permanent Liner Change    % ℃xHr

        -0.1

        -0.5

        -0.8

        -0.9

        -0.9

        1230X24

        1400x24

        1510x24

        1620x24

        1730x24

        Thermal expansion
        coefficient               (1100℃)%

        0.45

        0.50

        0.55

        0.60

        0.65

        Thermal conductivity
        (W/m.k)

               400℃

        0.17

        0.24

        0.30

        0.40

        0.49

               600℃

        0.19

        0.27

        0.32

        0.42

        0.50

               800℃

        0.22

        0.30

        0.35

        0.44

        0.51

                1000℃

        0.25

        0.32

        0.38

        0.45

        0.53

                 1200℃

         

        0.35

        0.39

        0.47

        0.55

        Al2O3                        %

        38

        50

         64

        72

        76

        Fe2O3                       %

        0.9

        0.8

        0.7

        0.5

        0.4

        SiO3                         %

        52

        43

        33

        26

        0.4

        TiO2                         %

        1.2

        1.3

        0.9

        0.5

        0.3

        CaO+ MgO                   %

        0.7

        0.6

        0.4

        0.3

        0.2

        K2O+ Na2O                  %

        1.3

        1.1

        0.8

        0.2

        0.1