INDEX

TEMS

M60

M70

M80

M86

AL2O3,%

58-61

68-71

78-81

85-87

Fe2O3,%  ≤

1.40

1.5

1.6

1.8

SiO2,%   ≥

35

24

14

8

TiO2,%   ≤

2.50

2.70

3.30

3.65

CaO,%   ≤

0.25

0.25

0.25

0.23

MgO,%   ≤

0.20

0.20

0.21

0.21

Na2O,%  ≤

0.05

0.05

0.10

0.10

K2O,%   ≤

0.20

0.20

0.20

0.21

 Bulk density,g/cm3

2.70-2.75

2.80-2.85

3.15

3.25

Water absorption rate ,% ≤

3

3

3

3

 Mullite phase, %

80-85

90-92

80-90

30-40

 Glass phase,%

15-20

8-10

Corundum phase,%

15-20

8-10

10-20

55-70