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TUNDISH PURGING PLUG
Gas purging in the form of steel refinement, or continuous casting, is aimed at the convection of molten steel, diversion of impurities in molten steel, and the prevention of steel solidification in the sliding gate valve.
In accordance with this, we do our best to supply diverse products to meet a customer's individual requirements while guaranteeing efficiency and safety.
 
 
 

Properties of Gas Purging Refractories

Items Properties

BP-95A

BTN-2

BATN-3

BATN-D2

BATN-8

BPR-DS

BPR-S

BPSC-95

BPAP

Upper

Lower

Apparent Porosity(%)

27-32

22-27

21-25

23-26

21-24

23-27

22-26

21-25

15-20

23-26

Bulk Densit

2.60-
2.70

2.42-
2.50

2.75-
2.85

2.90-
3.00

2.70-
2.80

2.80-
2.90

2.40-
2.50

2.85-
2.95

3.0-
3.1

2.85~
2.95

Cold Crushing Strength
( ㎏ /m 2 )

200≤

200≤

200≤

200≤

200≤

200≤

250≤

200≤

300≤

300≤

Thermal Expansion(%)
at 1.000℃

0.6

0.4

0.5

0.5

0.5

0.5

0.4

0.5

0.6-0.7

0.7

Permeability
( ㎤ , ㎝ / ㎠ ,sec,h 2 O, ㎝ )

1.8

0.6

1.3

1.3

1.3

1.3

1.3

1.3

-

1.5

Chemical
Analysis(%)

Al2 O3

93-96

78-83

88-93

93-98

87-93

85-90

72-77

83-88

91-94

94-96

Cr2 O3

1-2

-

-

1-3

-

1-2

1-2

1-3

-

1-3

ZrO2

-

-

-

-

-

-

5-7

3-5

-

-

Main Application

·Top and
Bottom
Blowing
Plug

·Porous
Nozzle

·Porous
Nozzle
·Sharp and
homogen-
eous pore
size
distribution

·Porous
nozzle
·Sharp and
hom-
ogeneous
pore
size distribution
·Double
structure
for anticlogging

·Porous Nozzle
·Highexdurability
for steel infiltration

·Bottom
bubbling
Plug
with slit

·Bottom bubbling Plug