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High aluminium brick Heat insulation material;
High aluminium brick Heat insulation material;

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High aluminum refractory brick belongs to gender refractory materials with its thermal stability.

Feature:

1.bricks are made from high quality bauxite
2.dry pressed
3.burned under tunnel kiln
4.accurate dimension
5.high strength

 

Product specification: standard form, normal standard, shaped and special shaped bricks.Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the mostly used in the key positions.Molding method: it has down draft kiln and tunnel kiln and the general sintering temperature is 1360-1480 degrees. It is a kind of aluminosilicate refractory product which aluminum oxide (Al2O3) content is higher than 48%.

 

High aluminum refractory bricks physiochemical index

Item 

Properties 

LZ-80 

LZ-75

LZ-65

LZ-55

LZ-48 

Al2O3 ,%

80 

≥75

≥65

≥55

≥48

Refractoriness °C 

≥1790 

≥1790

≥1790

≥1770

≥1750

Bulk density,g/cm3

2.65

2.5

2.45

2.4

2.3

Softening temperature under load 

1530 

≥1520

≥1500

≥1470

≥1420

Permanent linear change,%

1500°CX2H

+0.1

-0.4

+0.1

-0.4

+0.1

-0.4

+0.1

-0.4

 

1450°CX2H 

 

 

 

 

+0.1

-0.4

Apparent porosity,%

22

≤23

≤23

≤22

≤22

Cold Crushing strength Mpa

55

≥50

≥45

≥40

≥35

Application 

All industrial furnace 

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