Description:
Mullite brick IS characterized by good high temperature resistance and good thermal shock resistance, whick comes into being mullite through calcine with clay, high alumina materials and ceramics.
The main applications are:
1,Sulfuric cracking furnace
2,Fibrous glass furnance.
Specifications:
1,Low permanent linear change on reheating
2,Good Thermal Shock Stability
3,High dense structure
Advantages:
1,High quality;
2,chemical corrosion- resistance
Item\ Brand
| Item | LNH21 | LNH22 | LNH23 | LNH231 | LNH24 | LNH25 | LNH26 | LNH27 | LNHIMF |
Al2O3 % | 75 | 80 | 65 | 70 | 65 | 65 | 60 | 50 | 70 |
Fe2O3 % | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 1.5 | 1.5 | 1.5 | 0.5 |
Refractoriness, ℃ | 1850 | 1850 | 1850 | 1790 | 1820 | 1790 | 1790 | 1770 | 1850 |
Apparent Porosity, % | 20 | 21 | 19 | 20 | 23 | 24 | 20 | 21 | 25 |
Bulk Density, g/cm3 | 2.60 | 2.70 | 2.50 | 2.50 | 2.45 | 2.50 | 2.40 | 2.30 | 2.50 |
Cold crushing strength, Mpa | 55 | 45 | 55 | 65 | 45 | 60 | 60 | 55 | 45 |
Refractoriness under Load, KD T2℃ | 1700 | 1700 | 1700 | 1700 | 1700 | 1550 | 1530 | 1450 | 1700 |
Permanent Linear Change, % | 1500 ℃×4h | 1500 ℃×4h | 1450 ℃×2h | 1450 ℃×2h | | | | | |
Creep, % 0.2MpaX50h | 1550℃ | 1500℃ | 1450℃ | 1450℃ | 1400℃ | 1350℃ | 1300℃ | 1270℃ |
|
resistance(1100℃ water cycles) | 8 | 12 | 15 | 25 | 15 | | | | 20 |
Application | Burning chamber, Air mix chamber, contact tube | Air mix chamber, Regenerator | Regenerator, Burning chamber, air mix chamber | Air mix chamber | Contact tube | Regenerator | Ceramic burner walls | Regenerator, Air mix chamber Vault flue, Branch pipe | Air mix tube |
