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Category:
Aluminum oxide ceramic tube
| project | unit | BTT-60 | BTT-95 | BTT-99 | BTT-99.7 |
| EN-DIN 60672-3 classification | - | C610 | C795 | C799 | C799 |
| Color | - | white | white | Ivory | Ivory |
| Al₂O₃Content | % | > 58 | > 95 | > 99 | ≥ 99.7 |
| Density | g/cm³ | 2.7 | 3.7 | 3.88 | 3.92 |
| Water absorption | % | 0 | 0 | 0 | 0 |
| HM hardness | Mo's | 8 | 9 | 9 | 9 |
| Flexural strength @ 20 °C | Mpa | 120 | 330 | 360 | 380 |
| Compressive strength @ 20 °C | Mpa | 550 | 2100 | 2600 | 2950 |
| modulus of elasticity | Gpa | 100 | 320 | 360 | 375 |
| Thermal expansion | ·10-6/℃ | 6 | 6-8 | 7-8 | 7-8 |
| thermal conductivity | W/m · K | 4 | 24 | 29 | 444 |
| Maximum operating temperature | ℃ | 1400 | 1450 | 1750 | 1800 |
| Thermal shock resistance | ℃ | 150 | 140 | 150 | 150 |
| Medium breakdown strength | KV/mm | 17 | 14 | 15 | 18 |
| Dielectric constant @ 25 °C | - | 6 | 8.5 | 9.9 | 9.9 |
| Dissipation factor | (10-4) | N/A | 5 | 5 | 2 |
| Corrosion resistance | |||||
| HNO₃ | Weight loss mg/cm²/D | N/A | 0.07 | - | - |
| H₂SO₄ | Weight loss mg/cm²/D | N/A | 0.25 | - | - |
| NaOH | Weight loss mg/cm²/D | N/A | 0.05 | - | - |
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external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | external x internal Φ(mm) | ||
0.8x0.3 | 20x10 | 1.2x0.3 | 1.2x0.2 | 5.0x2.4/0.75 | 4.5x0.8 | 2.5/1.5x0.8 | □9.0 x 5.0 | △10 x 5.0 | 15x10 | 0.8 | 8.0 | 15x10 |
1.0x0.5 | 20x15 | 1.5x0.4 | 1.5x0.3 | 8.0x4.0/0.80 | 6.0x1.2 | 2.4/1.6x0.6 | 16x10 | 1.0 | 8.5 | 16x10 | ||
2.0x1.0 | 24x12 | 2.0x0.5 | 2.0x0.5 | 8.5x4.0/0.80 | 8.0x1.2 | 3.7/2.4x1.0 | 1.2 | 10 | ||||
3.0x2.0 | 24x18 | 2.5x0.7 | 2.5x0.6 | 1.5 | 10.5 | |||||||
4.0x2.0 | 25x10 | 3.0x1.0 | 3.0x1.0 | 2.0 | 11 | |||||||
4.0x3.0 | 25x15 | 3.2x1.1 | 3.2x1.0 | 2.5 | 12 | |||||||
5.0x3.0 | 25x19 | 25x19 | 3.5x1.0 | 3.0 | 15 | |||||||
6.0x4.0 | 26x16 | 26x16 | 3.7x1.0 | 3.2 | 16 | |||||||
8.0x5.0 | 26x20 | 26x20 | 3.9x1.2 | 3.5 | 17 | |||||||
9.6x6.4 | 30x22 | 3.7x1.2 | 4.0x1.2 | 3.7 | 18 | |||||||
10x6.0 | 32x24 | 3.9x1.2 | 4.5x1.2 | 4.0 | 20 | |||||||
12x8.0 | 35x26 | 4.0x1.2 | 5.0x1.5 | 4.5 | 22 | |||||||
15x6.0 | 40x30 | 4.5x1.2 | 5.5x1.8 | 5.0 | 24 | |||||||
15x9.0 | 50x40 | 5.0x1.8 | 6.0x0.7 | 5.5 | 25 | |||||||
15x10 | 60x50 | 5.5x2.0 | 6.0x1.8 | 6.0 | 26 | |||||||
15x11 | 70x60 | 6.0x0.7 | 6.5x2.0 | 6.5 | ||||||||
16x10 | 80x70 | 6.0x1.8 | 8.0x2.2 | |||||||||
16x12 | 90x78 | 6.5x2.0 | 8.5x2.2 | |||||||||
17x11 | 100x88 | 8.0x2.2 | 10x2.5 | |||||||||
17x13 | 115x100 | 10x2.3 | ||||||||||
| 18x13 | 120x100 | 10x3.0 | ||||||||||
Keywords:High alumina ceramics
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