China Alumina Ceramic Crucible Alumina Crucible Ceramic Crucible

High Temperature Alumina Ceramic Square Crucible
1.Highaluminapurity:al2o3>99%,goodcorrosionresistance.
2.Hightemperatureresistance,1600Cinlonguse,1800Cinshortuse.
3.Goodthermalshock,noeasytocrack.
4.Highslipcastingdensity
5.Itisinertinhydrogenandcarbonaceousatmospheresandoffershighresistancetoalkaliesandotherfluxes.Itissuitableforglassmelting,includingborosilicateglass.Recommendedforusewithrefractorymetalssuchasmolybdenum,platinum,rhodium,tungsten,tantalumandiridium.

Technical parameters

Name

Unit

Alumina

Zirconia

Content

%

≥95

≥99

≥99.7

≥94

Density

g/cm3

3.65

3.80

3.90

6.00

Hardness(Hv0.5)

GPa

13.1

15.0

17.1

13.2

flexural strength

MPa≥

340

310

370

1000

Elasticity

GPa

300

330

350

200

Poisson's ratio

0.23

0.23

0.23

0.30

Max Tem.

°C≥

1400

1750

1800

1050

Heat expansion

x10-6/°C(40-800°C)

7.8

8.0

8.0

11.0

Thermo conductivity

W/m·Petroleum Equipment & Machinery K(20°C)

22

28

31

2.6

Thermal Resistance

°C

200

200

230

300

dielectric strength

V/m

15x106

15x106

15x106

11x106

dielectric phase angle

(1MHz)

x10-4

4

2

1

16

SIC(1MHz)

9.2

9.8

9.9

33

Nitric AcidMeter for Electricity

(60%)90°C

WT Loss mg/cm2/day≤

0.12

0.10

0.05

≠0

Sodium hudroxide

(30%)80°C

WT Loss mg/cm2/day≤

0.53

0.26

0.04

0.08

Packaging & ShippingPackaged by polybay and bubble bag in the stardard export carton,
Every package can be offered with English installation instruction.Company Information

HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufactuWeighing & Measuring Apparatus rer and supplier in China.HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our custoAuto Repair Equipment & Tools mer's requirements and expectations.Continuous improvement in all areas of our business is key to our growth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.

CertificateOur ServiceFAQ

Q: Are you trading company or manufacturer ?We have our own company and factory.Q: We mainly accept T/T, West Union, Credit card and L/C.Paypal will be available in the near future.Q: Can you supply samples before placing an order?Yes. also available in stock.Q: Where is your main market?We have been exported to USA, Korea, UK, France, Russia, Germany, India, Spain, Brazil etc, so far, there is about 94 countries we have been exported, we also get good reputation from ouPrinting Machinery r customers.Q: Do you accept customized dimension?Yes, we can produce ceramic parts per customer's request.