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Refractory Castable

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High Alumina Castable Refractory

High Alumina Castable Refractory
  • High alumina high strength refractory castable is one of the unshaped refractory materials.It is made of refractory aggregate . refractory powder . binders and other additives. It is loose, No fixed shape,Has high liquidity, Casting and vibr
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Introduction

High alumina high strength refractory castable is one of the unshaped refractory materials.It is made of refractory aggregate . refractory powder . binders and other additives. It is loose, No fixed shape,Has high liquidity, Casting and vibration molding,Can use directly or use after add appropriate water or other liquid. It is one of the new type refractory material of don't need calcination. 


Characteristics

1. High refractoriness, High refractoriness under load.

2. High density, low porosity.

3. Good slag resistance and corrosion resistance.

4. High strength and wear resistance.

5. Good resistance to flake performance.

6. Good thermal shock stability.

7. Scouring resistance

8. Good hot strength.


Physical and Chemical Index

No.

A-45

A-60

A-70

A-75

A-80

A-90

Dry Density (g/cm3) ≥

2.3

2.5

2.6

2.65

2.7

3

Chemical (%)

Al2O3≥

45

60

70

75

80

90

ZrO2

--

--

--

--

--

--

Modulus of Rupture Mpa

110℃×24h≥

5

8

9

9

10

12

1500℃×3h≥

8(1350℃)

10 (1450℃×3h)

12

15

Compressive Strength Mpa

110℃×24h≥

30

40

40

45

45

60

1450℃×3h≥

60

80

80

85

90

85

Linear Dimensional Change After Fired   (1500℃×3h)%≤

±0.5

±0.5

±0.5

±0.5

±0.5

±0.5

1350℃×3h

1450℃×3h

1450℃×3h

1450℃×3h

Refractoriness(℃≥

1710

1740

1790

1790

1790

1790

Working Temp(℃)

1450

1450

1500

1550

1600

1650


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