High-Aluminum Low-iron Brick

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Product Description:

Specifications

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: 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%.

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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