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Alumina Crucibles And Boats|
Thermocouple protection tubes|
Ceramic Electric insulator|
Ceramic Rollers For Furnaces|
Alumina Plate And Disk|
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Alumina Tubes
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| Alumina Tube |
| Standard Purity 95%、99.35%、99.5%，99.8% |
| Catalog # |
Outside Dia |
Inside Dia. |
| AY- 1.2 |
1.2mm |
0.7mm |
| AY- 3 |
3mm |
2mm |
| AY- 5 |
5mm |
3mm |
| AY- 6 |
6mm |
4mm |
| AY- 8 |
8mm |
5mm |
| AY-10 |
10mm |
7mm |
| AY-12 |
12mm |
8mm |
| AY-14 |
14mm |
10mm |
| AY-16 |
16mm |
12mm |
| AY-20 |
20mm |
14mm |
| AY-25 |
25mm |
19mm |
| AY-30 |
30mm |
25mm |
| AY-40 |
40mm |
34mm |
| AY-50 |
50mm |
44mm |
| AY-60 |
60mm |
53mm |
| AY-70 |
70mm |
63mm |
| AY-80 |
80mm |
70mm |
| AY-85 |
85mm |
75mm |
| AY-90 |
90mm |
80mm |
| AY-100 |
100mm |
90mm |
| AY-110 |
110mm |
100mm |
| AY-120 |
120mm |
110mm |
| AY-130 |
130mm |
120mm |
| AY-140 |
140mm |
130mm |
| AY-150 |
150mm |
140mm |
| AY-160 |
160mm |
150mm |
| AY-170 |
170mm |
160mm |
| AY-180 |
180mm |
170mm |
| AY-190 |
190mm |
180mm |
| AY-200 |
200mm |
190mm |
| AY-210 |
210mm |
200mm |
Andy Company Offers High Purity Alumina Tubes. Both Metric and American sizes are available. These alumina tubes offer:
- Extreme high temperature stability under reducing, inert and high vacuum condition under high temperature up to 1800C.
- Extreme wear and abrasion resistance.
- Chemical corrosion resistance under high temperature.
- High dielectric properties.
- Gas tight for many applications to provide protective atmospheres or high vacuum at high temperature to eliminate contamination or impurity.
- Low material cost and custom size available.
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TYPICAL PHYSICAL PROPERTIES
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AL2O3 %Composition
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60
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75
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80
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85
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92
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95
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99
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99.8
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Density（g/cm3）
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3.0
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3.1
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3.3
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3.4
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3.6
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3.7
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3.81
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3.91
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Flexural Strength(MPa)
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205
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280
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215.7
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230
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312
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304
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340
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370
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Thermal Expansion
(×10-6/℃)
（25-800℃）
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7.1
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7.6
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7.6
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7.6
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7.5
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7.3
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7.6
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7.6
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Thermal Conductivity
[w/(m.R)]
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16
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17
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17
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17
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18
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20
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34
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35
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Dielectric Strength
(KV/mm)
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10
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10
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10
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10
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10
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10
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10
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10
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Resistivity (Ω.cm)
20℃
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＞1014
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＞1014
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＞1014
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＞1014
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＞1014
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＞1014
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＞1014
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＞1014
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300℃
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＞1013
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＞1013
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＞1013
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＞1013
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＞1013
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＞1012
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＞1010
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＞1010
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Max Service Temp.
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1350℃
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1100℃
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1300℃
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1350℃
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1500℃
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1600℃
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1700℃
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1800℃
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Hardness (Moh'sscale)
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7.5
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7.5
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7.5
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7.5
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8.5
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8.8
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9
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9
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耐火度
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1800
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1700
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1800
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1850
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1920
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2000
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2030
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2040
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