fire-resistant 55 high alumina brick

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Fob Price: 2000.00 USD/ 
MOQ: 5  
Payment Terms: delivery withindays since payment
Location: China
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Product Detail

Brand:aa

Product detail:

High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.

High alumina brick are used normally in industry furnaces such as blast furnace, hot-blast furnace and eaf etc.

For high alumina brick the thermal shock resistance is mainly decided by chemical contents and its mineral microstructure but its thermal shock resistant is worse than the fireclay brick.

 

 Specification:

Item                             Specifications

LZ-48

LZ-55

LZ-65

LZ-75

LZ-80

LZ-85

Al2O3 %

48

55

65

75

80

85

Fe2O3 %

2.5

2.5

2.0

2.0

2.0

1.8

Refractoriness°C

1760

1760

1770

1770

1790

1790

Bulk Density≥ g/cm3

2.30

2.35

2.40

2.45

2.63

2.75

Apparent porosity %

23

23

23

23

22

22

Refractoriness under load 0.2MPa°C

1420

1470

1500

1520

1530

1550

Cold crushing strength MPa

45

45

50

60

65

70

Permanent linear chang %

1500°C×2h

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

+0.1~-0.4

 

 
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