Unit

SHSM90

SHSM65

SHSM60

Content of al2o3

%

75-77

78-80

77-78

Density

g/cm3

2.6-2.7

2.5-2.6

2.4-2.5

Water absorption

%

6-7

8-9

9-10

Bending strength

MPa

60-70

55-60

50-55

Thermal Expansion coefficient(20-1000°C)

1/K

6*10-6

6*10-6

6.2*10-6

Elasticity

GPa

95

80

70

Using limit

°C

1350

1300

1300

Resistance to temperature change performance

very good

very good

very good

1.Heat treatment furnace and 

toughened furnace

3.Good resistance to 

thermal impact

4.Small thermal expansion 

coefficient 

2.Inner liner tube and heating 

tube in electric furnace

5.Good chill and abrupt 

heat properties