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        1. Alumina ceramic ring

          Alumina ceramic ring
          • Alumina ceramic ring
          • Alumina ceramic ring
          • Alumina ceramic ring
          • Alumina ceramic ring
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          • Alumina ceramic ring
          • Alumina ceramic ring
          • Alumina ceramic ring
          • Alumina ceramic ring
          Product name : Alumina ceramic ring
          Product No. : ALC 20180804
          Type : Alumina ceramic
          Feature : High temperature/corrosion resistance
          Material : 99.8% alumina ceramic
          Colour : Ivory white
          Production Process : Dry pressing / high temperature sintering / precision machining / surface polishing
          Detail : Used for equipment parts, solar parts, semiconductor parts.
          MOQ : 5pcs
          Brand : Seamark ceramic
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          Details:
          Alumina Ceramic (Aluminum Oxide)Description:

          Alumina is a ceramic material with high thermal conductivity, compressive strength, and thermal shock resistance. It also has a low thermal expansion, making it a suitable material for furnace use in crucible, tube, and thermocouple sheath form.

           Alumina is high hardness and good wear resistance, making it a suitable material for ball valves, piston pumps, and deep drawing tools. In addition, it can be easily combined with metals and other ceramic materials using brazing techniques and metallizing.

          Alumina crucibles can be used under high temperature and do not contaminate most melten metals.

           

          Alumina Ceramic Applications:

          • Used for equipment parts, solar parts, semiconductor parts.

          • In traditional industries, alumina ceramics are ideal for products such as injector tubes, gas nozzles and insulators.

          • Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures.

          • Used as protector for high temperature thermal couples.

          • Used as a material for chemical industry due to its high corrosion resistance.

          Typical properties for common materials of alumina plates

          Composition

          UNIT

          Alumina 95%

          Alumina 99.5%

          Alumina 99.8%

          AL2O3  content

          %

          96

          99.5

          99.8

          Color

           

          White

          Ivory

          Ivory

          Tensile strength

          Kpsi

          32

          38

          36

          Flexural strength

          Kpsi

          52

          55

          54

          Compressive strength

          Kpsi

          300

          377

          350

          Density

          g/cc

          3.70

          3.90

          3.92

          Hardness

          HV, GPa

          13.8

          17.2

          18

          Thermal Conductivity

          W/(m K)

          25

          30

          30

          Coefficient of thermal expansion

          In / In°C (x10^-6)

          7.7

          7.8

          7.8

          Working temperature

          °C

          1500

          1650

          1750

          Dielectric Constant

           

          9.5

          9.7

          9.8

          Volume Resistivity (25°C)

          Ohm-cm

          >10^14

          >10^14

          >10^14

          Suzhou Seamark fine Ceramics co.,Ltd(Seamark) engages in R&D, manufacturing and selling the products of advanced ceramic materials, including Alumina, Zirconia, Boron Nitride, Silicon Nitride, and other advanced materials.... [View More]
          Name: Linda Huang
          Tel: +86-512-66255075
          Fax: +86-512-66255030
          Mobile: +86-18550512237
          WeChat: 18550512237
          Whatsapp: 8618550512237
          QQ: 836574060
          Skype: smkceramic
          E-mail: info@smkceramic.com
          Add: 11-8 Xiangshan Li,No.8 Gucun Road,Xukou Town,Wuzhong district.Suzhou City,China.
          QQ: 836574060
          skype: smkceramic
          email: info@smkceramic.com
          msn: breeze828hq@hotmail.com
          facebook: https://www.facebook.com/profile.php?id=1316988025
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