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    FIRECLAY BRICKS

    FIRECLAY BRICKS

    1. SPECIFICATION

    Item

    Bricks for blast furnace

    Bricks for hot breeze stove

    Generally bricks

    Type

    ST-ZGN-42

    ST-GN-42

    ST-RN-42

    ST-RN-40

    ST-RN-36

    ST-N-1

    ST-N-2a

    ST-N-2b

    AL2O3%  min

    42

    42

    42

    40

    36

    -

    -

    -

    Fe2O3%  max

    1.6

    1.7

    -

    -

    -

    -

    -

    -

    Refractoriness  ℃ min

    1750

    1750

    1750

    1730

    1690

    1750

    1730

    1730

    RUL 0.2MPa ℃ min

    1450

    1430

    1400

    1350

    1300

    1400

    1350

    1350

    Liner Change on Reheating

    %

    1400℃·2h

    -

    -

    -

    -

    -

    +0.1

    -0.4

    +0.1

    -0.5

    +0.2

    -0.5

    1450℃·2h

    -

    -

    0.0

    -0.4

    -

    -

    -

    -

    -

    1450℃·3h

    0.0

    -0.2

    0.0

    -0.3

    -

    -

    -

    -

    -

    -

    1350℃·2h

    -

    -

    -

    0.0

    -0.3

    0.0

    -0.5

    -

    -

    -

    Apparent Porosity  % max

    15

    16

    24

    24

    26

    22

    24

    36

    CCS  Mpa min

    58.8

    49.0

    29.4

    24.5

    19.6

    35

    30

    25

        OTHER SPECIFICATIONS CAN BE DISCUSSED AS PER BUYER’S OPTION

    2. PACKING

         WOODEN PALLETS ENFORCED BY STEEL STRIP

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