Magnesia Calcium Brick

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Product Description:

Product Description

 

Features:

1. Low thermal conductivity, good thermal insulation performance.

2. Long service life, easy operation, could be shaped freely

3. Product specification: standard form, normal standard, shaped and special shaped bricks.

4. Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.

Applications:

1. Carbon bake furnaces in the aluminum industry

2. Preheat zones and cyclones of rotary cement kilns

3. Insulation for glass tanks

4. Fireplace and pizza ovens

5. Coke ovens

6. Blast furnaces

7. Reheating furnaces

8. Suspended roofs

9. Lime kilns

10. Chimney

Specifications:

Technical data

Item

AL-30

AL-34

AL-38

AL-45

AL-55

AL2O3 %   (min)

30

34

38

45

55

Fe2O3%   (max)

3

3

2.8

2.8

2.6

Refractoriness

1670°C

1710°C

1750°C

1770°C

1770°C

Refractoriness under load, 0.2MPa, (°C)

1250

1300

1350

1450

1470

Apparent porosity (%)

22-26

22-26

20-24

20-22

20

Bulk density (g/cm³)

1.9-2.1

1.95-2.1

2.1-2.2

2.15-2.22

2.2-2.35

Cold crushing strength (MPa)

20

25

30

35

40

Thermal expansion at 1000°C (%)

0.8

0.6

0.6

0.5

0.4



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