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Alumina Ceramic Ring High Temperature Wear Resistant Ceramic Gasket Insulation Heat Sink Ring Corrosion Resistant Oxidation Resistant Gasket

  • Very good electrical insulation.
  • Moderate to extremely high mechanical strength.
  • Very high compressive strength.
  • High hardness.
  • Moderate thermal conductivity.
  • High corrosion and wear resistance.
  • Good gliding properties.
  • Low density.
  • Operating temperature without mechanical load 1,000 to 1,700°C.
  • Bioinert and food compatible.
Availability:
Quantity:
  • 01049

  • HaoRui

  • custom01001

99 Alumina Ceramic Custom Finishing


Alumina Ceramic Ring High Temperature Wear Resistant Ceramic Gasket


Alumina ceramic ring high temperature wear resistant ceramic gasket is a versatile and durable solution for various industrial applications. Its exceptional properties make it ideal for withstanding extreme temperatures and harsh environments. The high wear resistance of alumina ceramic ensures long-lasting performance and reliability in demanding conditions. Additionally, its superior thermal conductivity and chemical stability make it a preferred choice for sealing and insulation purposes. Whether used in high-temperature furnaces, corrosive environments, or abrasive settings, alumina ceramic gaskets provide effective protection and sealing, ensuring efficient operation and extended equipment lifespan.


Alumina ceramic sealing ring has the advantages of high temperature resistance, chemical corrosion resistance, abrasion resistance, good sealing performance, can be used in a variety of acid-resistant, alkali-resistant, oil-resistant sealing pumps and other sealing products, widely used in petroleum, chemical industry, pharmaceuticals, automobile manufacturing, military, aviation, metallurgy, printing and dyeing, food, machinery and many other industries sealing.


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Properties of Alumina material (Al2O3)


Property
Item
95% Al2O3
99% Al2O3
99.8%Al2O3
Unit
Mechanical Characteristics
Color
White
light yellow
Ivory

Bulk Density
3.7
3.85
3.93
g/cm3
Water Absorption
0
0
0
%
Bending Strength
300
310
370
MPa
Compressive Trength
2,300
2,400
2500
MPa
Elastic Modulus
320
340
390
GPa
Fracture Toughness
3~4
3~4
4
MPa m1/2
Weber Coefficient
12
12
12
m
Vickers Hardness
1,400
1,600
1850
HV 0.5
Thermal Characterics
Coefficient of Line Thermal
Expansion
7~8
7~8
7~8
10-6 K-1
Thermal Conductivity
20
29
32
W/mK
Thermal Shock Resistance
(Put in Water)
250
200
280
ΔT °C
Max Working Temperature
1,500
1,600
1700
°C
Electrical Characteristics
Volume Resistance At 20°C
>1014
>1014
>1014
Ωcm
Dielectric Strength
15×106
15×106
15×106
V/m
Dielectric Constant
9
10
10
εr
One MHZ Dielectric Loss Angle
at 20°C
0.0004
0.0002
0.0001
tanδ
Chemical Characteristics
Nitric Acid (60%) 90°C
0.1
0.1
0.05
24H WT Loss mg/cm2
Sulphuric Acid (95%) 95°C
0.3
0.34
0.22
Caustic Soda (30%) 80°C
0.9
0.95
0.04


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