Index

Item

Al2O3,%≥

65

60

55

C,%≥

11

11

11

Fe,%≤

1.5

1.5

1.5

Compress strength, Mpa≥

70

60

50

Volume,density,g/cm3≥

2.85

2.65

2.55

Apparent porosity,%≤

16

17

18

Melting iron corrosion index,%≤

2

3

4

Heat conductivity, W/m.k
(0-800)≥

13

13

13

Alkali resistance,%≤

10

10

15

entilate,um2(mDa)≤

4.94×10-4
(0.5)

1.97×10-3
(2.0)

1.97×10-3
(2.0)

Average aperture, um≤

0.5

1

1

<1um hole cubage,%≥

80

7-

70