Low cement castable refractory

Detailed introduction

Low cement refractory castable is a new generation of refractory castable developed by fine particle gradation and superfine powder and high efficiency additive. It has the advantages of compactness, high strength, good high temperature performance, strong corrosion resistance and good thermal shock stability. It is suitable for thermal equipment such as reheating furnace, electric furnace and reformer. It has been successfully used in heating furnaces of more than ten steel plants such as Tangshan Huitong, Chengde Huaxing, Tangshan Wushun Dragon and Tangshan Jiaqi.

 

 Main Properties


Index

Item

TN-DL50

TN-DL60

TN-DL70

TN-DL80

TN-DL90

Al2O3,% ≥

50

60

65

70

90

CaO% ≤

2.5

2.2

2.0

2.0

1.8

 bulk density,g/cm³≥

2.35

2.45

2.50

2.60

2.95

C.C.S, MPa ≥

110℃×24h

20

25

30

30

40

1000℃×3h

45

50

55

55

65

1400℃×3h

60

65

70

70

80

linear change after heating,%

1400℃×3h

± 0.5

±0.4

± 0.4

± 0.3

± 0.4

Max. service temperature, ℃

1400

1450

1500

1550

1650

water quantity of using,%

6-7.5

6-7.5

6-7.5

6-6.5

6-6.5

 application

Low temperature segment

Various parts of reheating furnace

High temperature wear resistant parts and top of electric furnace

低水泥耐火浇注料


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