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99% Alumina Ceramic Screw
2014-05-04 15:55

99% Alumina Ceramic Screw

Provide customers a comprehensive purchasing platform of industrial and electric heat ceramic products

Description

1.Material: 85 - 99.5% alumina ceramic 
2.Purpose:used in electronical industry 
3.RoHS 

Gong tao company can customize various alumina ceramic parts such as plate,wafer,gasket,screw,disk ect.

 

These items have wear-resistance,shock resistance,and convenient construction ect.They are wear-resisting and ideal material for material transportation equipment in industry such as petroleum,mine,steelworks,electric plant.And they can prolong the using cycle of equipment effectively.

 

Gongtao company can make special various wear-resistance parts based on the requirement and drawing. 

 

AL2O3 conent %

60

75

80

85

92

95

99

99.7

Bulk density(g/cm3)

3

3.1

3.3

3.4

3.6

3.7

3.81

3.85

Flexural Strength(MPa)

205

280

215.7

230

312

304

340

370

Coefficient of linear expansion(×10-6/°C)(25-800°C)

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

Insulated strength(KV/mm)

10

10

10

10

10

10

10

10

Bulk density resistance(Ω.cm)20°C

>1014

>1014

>1014

>1014

>1014

>1014

>1014

>1014

300°C

>1013

>1013

>1013

>1013

>1013

>1012

>1010

>1010

Long term operating temperature (°C)

1350

1000

1250

1290

1390

1480

1600

1700

Hardness

7.5

7.5

7.5

7.5

8.5

8.8

9

9

Refractoriness

1800

1700

1800

1850

1920

2000

2030

2040

Product Photo



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