Brand name 
Item

Alumina-Sic-C bricks 

chrome-containing phosphate alumina bricks 

Slag zone of ladle 
UKC-4

Ladle part of ladle 
UKC-6

Bottom furnace of ladle 
UKC-7

Slage zone of ladle 
UKC-2S

Slag zone of ladle 
UKC-LO

for the air blown part in pounring ladle 
UKA-5

Al₂O₃≥℅

62

75

46

48

72

70

SiO₂≤℅

≥18

5

F．C≥℅

6

10．5

9

13

11

SiC≥℅

7．5

8

4

8

3

High-temperature bending strength at 1400℃ ≥Mpa 

7

Refractoriness 

1850

Apparent porosity 

10

7．0

10

10．0

8．0

20

Bulk density 

2．62

3．0

2．55

2．78

3．13

2．75

Cold crushing strength

35

35

40

35

38

35