Global 99.5 Alumina 4mm Ceramic Rod Guides

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Beijing

  • Validity to:

    Long-term effective

  • Last update:

    2020-02-05 12:36

  • Browse the number:

    177

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Company Profile

CeaGoo Co., Limited

By certification [File Integrity]

Contact:senguo(Mr.)  

Email:

Telephone:

Phone:

Area:Beijing

Address:Beijing

Website:http://www.ceagooceramic.com/ http://www.0512film.com/com/senguo/

Product details

Production Description

Global 99.5% alumina ceramic rods guides are the standard products for CeaGoo, we offer kinds of diameters for you pick, such as ø4mm and ø 6mm. Color and polishing are also available for your different request.


Product Features

CeaGoo offers an aluminum oxide material of the highest quality, with a purity of 99.5% and 99.7%.

99% alumina exhibits more excellent properties than 95% alumina as below:

High breaking strength

Very high heat resistance

Good thermal conductivity

Very high degree of hardness and wear resistance

Electrical insulation, even at high temperatures

Corrosion resistance in diluted acids and lyes

Low-friction surface with reproducible surface properties


Material Properties

Properties

Units

95% Alumina

99% Alumina

Physical

Density, r

g/cm3

3.5

3.7-3.97

Crystal Structure


hexagonal

hexagonal

Water Absorption

% @R.T.

0

0

Hardness

knoop (kg/mm2)

1175

1440

Hardness

R45N

78

83

Mechanical

Compressive Strength

MPa @ R.T.

2068

2600

Tensile Strength

MPa @ R.T.

221

262

Modulus of Elasticity

Gpa

303

394

Flexural Strength (MOR)

MPa @ R.T.

358

379

Poisson's Ratio, u


0.21

0.27

Fracture Toughness, KIc

MPa x m1/2

4.5

4.5

Thermal

Max. Use Temperature

oC

1700

1750

Thermal Shock Resistance

DT (oC)

250

200

Thermal Conductivity

W/m-K @ R.T.

25

35

Thermal Expansion Coefficient

mm/m-ºC

8.2

8.4

Specific Heat

cal/g-oC @ R.T.


0.21

Electrical

Dielectric Constant

1MHz @ R.T.

9

9.6

Dielectric Strength

kV/mm

8.3

8.7

Electrical Resistivity

Wcm @ R.T.

>1014

>1014


China is rich in bauxite resources, with proven conservative reserves of 2.3 billion tons, ranking fourth in the world, and has the resources to develop alumina industry. According to incomplete statistics since 2004, 27 alumina investment projects have been announced in China, with a total scale of 16.041 million tons. Even without considering the utilization of foreign bauxite resources and overseas investment projects, the total scale has reached 28.141 million tons. At the end of 2006, Chinalco produced 9.52 million tons of alumina. In addition to the announced scale of alumina under construction, there are 1992 million tons of proposed alumina in China, close to the total of all proposed (expanded) alumina projects abroad. The rapid development of alumina industry is different from the previous low-level repeated construction, but on a large scale, high-level, optimized the structure, and greatly improved the overall level and competitiveness of China's alumina industry. However, if this kind of investment heat continues to expand disorderly, it is bound to cause a relative surplus of products.

http://www.ceagooceramic.com/