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Alumina Plates and Disks

      Alumina Plates and Disks are available in different dimensions and thicknesses. Call for custom shapes and sizes.

Alumina Plate (99.7--99.99%)

Length Width

Thickness

inch

mm

inch

mm

inch

mm

8.66

220

8.66

220

0.20

5

8.19

208

4.33 110 0.20 5

6.00

152

6.00

152

0.20

5

6.00

152

6.00

152

0.50

12.7

6.00

152

6.00

152

0.75

19.0

5.91

150

3.15

80

0.31

8

4.00

102

3.00

76

0.24

6

3.54

90

2.56

65

0.24

6

2.36

60

0.39

10

0.20

5

Alumina Disk (99.7--99.99%)

OD

Thickness

              inch

             mm

             inch

           mm

1.65

42

0.08

2

3.23

82

0.24

6

1.26

32

0.095

2.4

1.50 

38

 0.095 

2.4

2.00 

51

0.095

2.4

 2.52 

64

0.126

3.2

 3.00  

76

0.126

3.2

 3.50  

89

0.157

4.0

 3.50  

102

 0.189

 4.8 

TYPICAL PHYSICAL PROPERTIES
AL2O3      %Composition
60
75
80
85
92
95
99
99.8
Density(g/cm3)
3.0
3.1
3.3
3.4
3.6
3.7
3.81
3.91
Flexural Strength(MPa)
205
280
215.7
230
312
304
340
370
Thermal Expansion
(×10-6/℃)
(25-800℃)
7.1
7.6
7.6
7.6
7.5
7.3
7.6
7.6
Thermal Conductivity
[w/(m.R)]
16
17
17
17
18
20
34
35
Dielectric Strength 
(KV/mm)
10
10
10
10
10
10
10
10
Resistivity (Ω.cm)
20℃
>1014
>1014
>1014
>1014
>1014
>1014
>1014
>1014
300℃
>1013
>1013
>1013
>1013
>1013
>1012
>1010
>1010
Max Service Temp.
1350℃
1100℃
1300℃
1350℃
1500℃
1600℃
1700℃
1800℃
Hardness (Moh'sscale)
7.5
7.5
7.5
7.5
8.5
8.8
9
9
耐火度
1800
1700
1800
1850
1920
2000
2030
2040
Address: No.2-110,DongFeng Road, Zhengzhou city, Henan, China
豫ICP备07007972号
Telephone: 86-138-3855 0579 EMail: sales@andygroup.com shiransophie@hotmail.com