Special refractory castables

Detailed introduction

Special refractory castable is a kind of ultra-low cement refractory castable with good slag resistance, wear resistance and high strength. It is suitable for special parts of thermal equipment such as heating furnace. It has been successfully used in many heating furnaces such as Chengde, Huaxing, Tang Shanyu and 1 li long.


 Main Properties 


Index

牌号Item

TNGJ-1

TNGJ-2

TNBJ-1

TNBJ-2

TNHJ-1

type

steel fibre high alumina based

alumina-magnesia based

chrome corun-dum based

Al203% ≥

60

70

60

70

85

CaO%≤

2.5

2.4

7

5

3

(MgO)

(MgO)

( Cr2P3)

bulk densityg/cm³ ≥

llO℃×24h

2.50

2.58

2.50

2.58

3.10

1400℃×3h

2.46

2.54

2.45

2.55

2.98

C.C.SMPa ≥

110℃×24h

25

30

25

27

40

1400℃×3h

65

70

60

65

150

linear change after heating%

1400℃×3h

± 0.5

± 0.5

± 0.6

0.55

± 0.5

Max. service temperature

1600

1650

1650

1650

1650

water quantity of using%

7-8

6-7

6 ± 0.5

application

Steel doors and frames

Slag resistant layer of furnace bottom

Platform brick and slide rail brick

 特种耐火浇注料



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