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| No | Item | Unit |
Half graphitic Carbon block |
Graphite Carbon block |
High thermal conductivity Carbon block |
Micropore carbon block | super micropore carbn block | |
| 1 | Fixed carbon | ≥ | % | 78 | 98 | - | - | - |
| 2 | ash | ≤ | % | 8 | 0.5 | 7 | 20 | 22 |
| 3 | bulk density | ≥ | g/cm3 | 1.50 | 1.52 | 1.6 | 1.60 | 1.68 |
| 4 | apparent porosity | ≤ | % | 20 | 20 | 18 | 18 | 14 |
| 5 | real density | ≥ | g/cm3 | 1.90 | 2.10 | - | 1.90 | - |
| 6 | modulus of compression | ≥ | Mpa | 30 | 19.6 | 30 | 36 | 36 |
| 7 | flexural strength | ≥ | Mpa | 7.8 | 6 | 8 | 8 | - |
| 8 | Iron Erosion | ≤ | % | - | - | 32 | 30 | 30 |
| 9 | Average porosity radius | ≤ | μm | 1.5 | - | - | 0.25 | 0.1 |
| 10 | ＜1μm Pore size |
≥ | % | 20 | - | - | 70 | 80 |
| 11 | oxidation | ≤ | % | 30 | - | 20 | 28 | 8 |
| 12 | permeability | ≤ | mDa | 5.2 | - | 70 | 11.0 | 1 |
| 13 | Thermal conductivity | Room temperature | W/m.k | - | - | 25 | 7 | - |
| 300℃ | - | - | - | 10 | - | |||
| 600 ℃ | - | - | 30 | 14 | 20 | |||
| 800 ℃ | 7 | - | - | 12 | - | |||
| 14 | anti-alkali | U or LC | U or LC | U | U orLC | U or LC | ||
| Remarks: permeability,oxidation and iron erosion are reference data. | ||||||||
Dimension and allowable tolerance should be in accordance with table 2
table 2 unit:mm
| Dimension | L | allowable tolerance |
| 200×200×L | ≤2400 |
According to relative industrial standard |
| 400×400×L 400×500×L |
≤2700 | |
| 400×600×L 500×500×L 500×600×L |
≤2400 | |
| 515×450×L | ≤3280 | |
| 500×660×L 500×600×L 550×600×L 600×600×L |
≤3390 |
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