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Stopper
 

Properties of Long Stopper

Application

Body

Nose

Properties

CRAG-S27

CRAG-S04

CRMG-S02

CRAG-S50

CRAG-S81

Chemical
Analysis(%)

F·C+SiC

23+3

29+1

24+1

23+2

16+2

Al 2 O 3

51

54

3

72

80

SiO 2

11

11

1

2

-

ZrO 2

8.5

4

-

-

-

MgO

-

-

68

-

-

Apparent Porosity(%)

17.3

18.6

17.0

17.0

16.3

Bulk Densit

2.45

2.32

2.42

2.58

2.75

Cold Crushing Strength
( ㎏ /m 2 )

307

290

320

300

350

Modulus
of Rupture ( ㎏ / ㎠ )

room temp

81

96

60

81

100

at 1,400℃

70

80

50

70

90

Thermal Expansion(%) at 1.000℃

+0.37

+0.31

+0.52

+0.40

+0.43

·Corrosion
resistance
·Spalling
resistance

·Corrosion
resistance
·Spalling
resistance

·For
erosive
steel

·High
Corrosion
resistance

·For
erosive
steel