Corundum crucibles, alundum crucibles, Al2O3

Corundum (alund) Al2O₃ 99%

Parameters

unit of measurement

Value

physical characteristics

Heat resistance

° C

1800

Bulk density

g / cm³

3.9

Water Absorption

%

0

Bending strength

Mpa

360

Mechanical characteristics

Vickers hardness

Gpa

15.6

Elastic modulus

Gpa

370

Poisson's ratio                 

-

0.23

Thermal performance    

Linear expansion coefficient

(20 ° C-500 ° C) 10-6 / ° C

8

Thermal conductivity 

W / (m∙k)

32

Specific heat      

* 10-3J / (kg * K)

0.9

Electrical specifications     

Dielectric Constant (1MHZ)       

-

9.9

Dielectric loss tangent

* 10-4

1

Dielectric strength

* 106 V / m

15

Corundum crucibles

View

Volume V (ml)

Diameter D (Mm)

Height H (Mm)

Cover

1

11

20

Not available

3

16

28

Convex cover

5

28

17

Plate d=33 mm

6

19

35

Convex cover

10

30

28

Standard cover

20

35

30

Standard cover

30

40

35

Standard cover

40

35

58

Plate d=33 mm

60

40

70

Standard cover

85

50

60

Plate d = 50 mm

120

50

80

Plate d = 50 mm

150

50

100

Plate d = 50 mm

180

59

87

Standard cover

200

60

100

Standard cover

300

70

100

Standard cover

300

95

60

Lidded lid

400

70

120

Standard cover

800

115

110

Not available

1000

115

155

Not available

60

50

50

Plate d = 50 mm

120

60

60

Standard cover

300

80

80

Standard cover

600

100

100

Flat cap

80

75

27

Flat cap

120

90

35

Flat cap

200

100

35

Flat cap

400

75

120

Flat cap

500

85

140

Standard cover

5

14

44

Convex cover

5

16

50

Convex cover

6

16

56

Convex cover

10

20

50

Plate d = 21 mm

15

23

60

Plate d = 21 mm

45

35

70

Plate d = 33mm

50

30

100

Standard cover

65

35

100

Plate d = 33 mm

250

60

120

Standard cover

800

80

200

Standard cover