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FIRECLAY BRICKS
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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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