clay bonded castabIe refractories

Detailed introduction

Clay bonded refractory castables are characterized by low strength at room temperature, increasing strength with the increase of heating temperature, good thermal shock resistance, spalling resistance and volume stability. The castables are ideal lining materials for reheating furnaces. They have been used in reheating furnaces of Tiangang, Shougang, Angang, Langfang Xingang and Tangshan Rolling Mill, etc. and good results have been obtained.


 Main Properties


Index

Item

TN-NN45

TN-NL60

TN-NL70

TN-NL60G

TN-NL65GG

AL2O3, % ≥

45

60

70

60

65

bulk densityg/cm³ ≥

2.30

2.35

2.50

2.38

2.40

 C.C.S,MPa ≥

110℃×24h

9

10

11

13

15

1000℃×3h

35

40

45

45

50

1400℃×3h

40

45

50

50

50

linear change after heating%

1400℃×3h

±0.6

±0.5

±0.4

±0.5

±0.4

Max. service temperature .℃

1400

1450

1500

1450

1500

water quantity of using%

6-8

6-8

6-8

6-8

6-8

 application

Low temperature segment

Various parts of reheating furnace

Various parts of reheating furnace and soaking pit

 粘土结合耐火浇注料


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