0086-(0)-13280618604
Mobile:

Zibo Caojian Refractory Material Co., Ltd

Product
Product Detail

Refractory Ball

Collect
DETAILS

Alumina ball, high alumina refractory ball


Alumina ball

l  Alumina ball have stable performance and can be used at high temperature without being affected.

 

l  It has the characteristics of high melting point and high boiling point. It can withstand 1600 ° C and is highly insulated.

 

l  The material has no magnetism and does not absorb dust. It is an insulator at normal temperature and can be used for insulating equipment.

 

l  Wear resistance and corrosion resistance. High strength, not easy to wear, quality assurance, durable.

l  We can customize according to the requirements of users.


AVAILABLE SIZES

Texture Of Material


Al2O3

Appearance


Compact

Color


white

Ivory

Ivory

Content


99%

99.5%

99.7%

Density

gm

3.8

3.9

3.9

Water Absorption

0

0

Vickers Hardness

Gpa

15.5

15.7

17.2

Flexural Strength

Mpa

310

370

380

Compressive Strength

Mpa

2160

---

---

Young's Modulus

Gpa

360

370

380

Poisson's Ratio

0.23

0.23

0.23

Fracture Toughness

Mpa.m1/2

34

---

---

Coefficient Of Thermal   Expansion

40-400°C

x 10-6/k

7.2

7.2

7.2

40-800°C

x 106/k

8.0

8.0

8.0

Thermal Conductivity  20°C

W(m.k)

29

32

32

Specific Heat Capacity

J(g.k)

0.79

0.78

0.79

Thermal Shock Resistance   (in water)

°C

200

---

---

Dielectric strength

kv/mm

15

15

15

Volume resistivity

20°C

Ω.cm

>104

>104

>104

300°C

Ω.cm

 1010

1013

1013

500°C

Ω.cm

108

1010

1010

Dielectric constant  1MHz

9.9

9.9

9.9

Dielectric loss angle  1MHz

x 10-4

2

1

1

Loss factor

x 10-4

20

10

10

 

Nitric Acid60%90°C, 24 Hours

Weightlessness

mg/cm2

0.1

---

      0.05

 

Sulphuric Acid(95%9°C, 24 Hours

Weightlessness

mg/cm2

0.33

---

0.22

 

Caustic Soda(30%)80°C, 24 Hours

Weightlessness

mg/cm2

0.26

---

0.04


Tel: 0086-13754781824

caojian@cj-ceramicfiber.com


 

Address: 1203 DongFang ZhiZhu 93# LiuQuan Road Zhangdian Zibo 

About us  

Product 

Solution

News 

Technical Support: 光学堂 | Admin Login
×
seo seo