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Ceramic tube 2

Ceramic tube 2

ceramic tube 2

What’s this?

Alumina ceramic, (Al₂O₃). In He-Shuai company, we mainly offer the advanced customized service to our clients. Alumina ceramic belongs a kinds of industry ceramic. Alumina is its mainly material. And its feature is high hardness, long wearing, only can be formed by diamond grinding. It has huge range industrial applications. And the shape have tube, ring, disc, rod, plate … other special shapes.

Custom Industrial Ceramic part is getting more and more popular in the world. We have very good production technology to improve the quality. And offering the alumina ceramic in various shapes and dimensions and made to tight tolerance. It is your exceptional products with affordable price.

  1. How many models you have?

We have hundreds of normal standard models for your reference. Some of alumina cermaic have enough stocks.but some of others haven’t. So, Contact us today if you need special size .welcome to custom made product from He-Shuai Ltd.

 

  1. Alumina Ceramic: Common Shapes and Sizes
    • Alumina Ceramic Thermocouple-protection Tube Closed One Endprotection tube closed one end 

Material and Features:

95%series 99%series 99.5%series
A l2O3      ( % ) ≥95 ≥99 ≥99.5
SiO 2 (%) <0.3 <0.2 <0.04
Fe2O3     (%) <0.1 <0.1 <0.05
Alkaline substances (%)                                                          Density  (g/cm3 ) 0.1

3.7

0.1

3.87

0.08

3.89

Hardness (M0hs) 8.8 9 9
Expansion coefficient (10-6 K-1 ) 8.5 8.1 7.6
Operating temperature in short time ( ℃ ) 1650 1800 1850
Operating temperature in long time ( ℃ ) 1530 1650 1700
Color pink ,white white,ivory ivory
Standard dimension(mm)
Outer diameter 6 8 10 12 16
Length 1000 1500 2000 2000 2500
Outer diameter 20 25 30-35 40-45 50-55
Length 2500 2500 2000 2000 2000
Outer diameter 60-65 70-75 80-85 90-95 100
Length 2000 2000 2000 2000 1700

 

 

  • Furnace Tube

Furnace ceramic tube

Material and Features:

80series 95series 97series 99series 995series
Manufacturing Process: extrusion processing slip casting slip casting slip casting slip casting
Service Temp. (℃) 1350 1530 1600 1650 1700
A l2O3      ( % ) ≥80 ≥95 ≥97 ≥99 ≥99.5
Rate of water absorption (%) ≤8.5 ≤0.01 ≤0.01 ≤0.01 ≤0.01
Anti-bending strength (Mpa) ≥55 ≥275 ≥285 ≥300 ≥350
Thermal shock resistance Excellent Excellent Excellent Excellent Excellent
Max. service Temp. (℃) 1420 1750 1800 1850 1900
standard sizes (mm)
80series 95series 97series 99series 995series
Outer diameter 40-150 40-150 40-200 40-150 40-150
Wall thickness 5-15 4-7 4-20 4-7 4-7
Length 5500 2000 2000 2000 2000

Attention

  1. In order not to affect the service life of the furnace tube, recommended maximum heating rate and cooling rate are from 10 to 20 ℃ /
  2. In consideration of the heat-expansion and cold-contraction principle, Please try to avoid the furnace tube touching the high temperature or cool object
  3. Furnace tube will appear tiny cracks after a period of time, which is normal phenomenon while the cracks will not affect the use, and can be repaired with aluminum oxide
  4. Recommended not pass into corrosive If you want to pass into highly corrosive substances such as S, Na, etc., special treatment is needed on the furnace tube.
  5. High temperature solution can not be leaked into the furnace tube, While base plate and alumina powder can isolate the furnace
  • Alumina Ceramic Tube (Isostatic Processing)

isostatic processing alumina ceramic tube

 

Material and Features:

95%series 99%series 99.5%series
A l2O3      ( % ) ≥95 ≥99 ≥99.5
SiO 2 (%) <0.3 <0.2 <0.04
Fe2O3     (%) <0.1 <0.1 <0.05
Alkaline substances (%)                                                          Density  (g/cm3 ) 0.1

3.7

0.1

3.87

0.08

3.89

Hardness (M0hs) 8.8 9 9
Expansion coefficient (10-6 K-1 ) 8.5 8.1 7.6
Operating temperature in short time ( ℃ ) 1650 1800 1850
Operating temperature in long time ( ℃ ) 1530 1650 1700
Color pink ,white white,ivory ivory

 

Alumina ceramic tubes (Isostatic Processing)can be supplied in longer lengths (up to 1250mm long) . We can also custom cut shorter lengths to your specifications. The tube’s outer diameter range from 10mm – 800mm.

 

4.4 High Temperature Ceramic Roller

high temperature ceramic roller

Material and Features:

   LC-A                LC-B LC-C LC-D
Max. service Temp. (℃) 1220 1280 1350 1450
A l2O3      ( % ) ≥70 ≥75 ≥80 ≥85
Rate of water absorption (%) ≤11 ≤9 ≤8.5 ≤7.5
Anti-bending strength (Mpa) ≥40 ≥45 ≥51 ≥58
Thermal shock resistance Excellent Excellent Excellent Excellent
Refractory degree (℃) ≥1700 ≥1750 ≥1800 ≥1860
standard sizes (mm)
Outer diameter                        20                        25                       27                          30                        33.7                 
Length                                          2800 2800 3100 3300 3500
Outer diameter                      35                         40                          42                           45                           48                  
Length                                          3600 3600 3600 4200 4200
Outer diameter                       50                         52                          55                           60                           65                  
Length                                          4400 4500 4700 4800 4800

The tubes of the above sizes , we have available stocks. We can also custom cut shorter lengths to your specifications. Other sizes available on request.

4.5 Alumina ceramic rod

Alumina ceramic rod

Material and Features:

95%series 99%series 99.5%series
A l2O3      ( % ) ≥95 ≥99 ≥99.5
SiO 2 (%) <0.3 <0.2 <0.04
Fe2O3     (%) <0.1 <0.1 <0.05
Alkaline substances (%)                                                          Density  (g/cm3 ) 0.1

3.7

0.1

3.87

0.08

3.89

Hardness (M0hs) 8.8 9 9
Expansion coefficient (10-6 K-1 ) 8.5 8.1 7.6
Operating temperature in short time ( ℃ ) 1650 1800 1850
Operating temperature in long time ( ℃ ) 1530 1650 1700
Color pink ,white white,ivory ivory

standard dimension

Alumina ceramic rods can be supplied in longer lengths ( up to 2500 mm long). We can also custom cut shorter lengths to your specifications.The sizes of the tube’s outer diameter range from 0.8mm – 200mm. Custom Produc: Triangular rod, square rod, Other Styles.