| Model: | JM-26 |
|---|---|
| Brand: | LONGTAI |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Non-metallic Mineral Products |
| Label: | JM brick , insulation brick , refractory brick |
| Price: |
US $1.5
/ pc
|
| Min. Order: | 500 pc |
| Live Chat: | Last Online:22 Oct, 2013 |
Mullite insulation brick primary phase is mullite (3Al2O3 · 2SiO2), alumina content is 65%-75%. In additionto mineral composition, also include little mullite alumina and a small amount of quartz glass
and party;including higher alumina also contain little corundum.
1.High temperature insulating firebrick
2.Excellent strength and thermal stability
3.Low heat storage
4.High purity.
5.Low thermal conductivity
Mullite inslating firebricks physiochemical index:
|
Item |
Properties |
|||
|
JM 26 |
JM 28 |
JM 30-1 |
JM 30-2 |
|
|
(°C)Highest use temperature |
1430 |
1540 |
1550 |
1550 |
|
Al2O3 (%) |
49 |
52 |
61 |
65 |
|
SiO2 (%) |
48 |
45 |
36 |
32 |
|
Fe2O3 (%) |
1 |
0.7 |
0.6 |
0.7 |
|
Bulk density,g/cm3 |
0.8 |
0.9-1.0 |
0.9-1.0 |
1.0-1.3 |
|
Cold Crushing strength MPa |
3.4 |
4 |
4 |
7 |
|
The flexural strength (Mpa) |
1.2 |
1.3 |
2.1 |
2.8 |
|
Permanent linear change |
0.4 |
0.4 |
0.38 |
0.3 |
|
(1400) |
(1500) |
(1550) |
(1550) |
|
|
Thermal expansion rate |
0.44 |
0.48 |
0.47 |
0.45 |
|
(1000) |
(1000) |
(1000) |
(1000) |
|
|
Coefficient of thermal conductivity (300°C±25°C) |
0.28 |
0.32 |
0.35 |
0.4-0.6 |
|
0.31 |
0.34 |
0.4 |
||
|
Characteristics |
This product has the direct contact with the flame, the body is light and high crushing strength, thermal insulation performance is good, save energy. |
|||
|
Application |
Petrochemical industry: carbon black furnace, the gasifier, gasification, ethylene cracking furnace, a for 1- phase converter and hydrogen furnaces, etc. Ceramic industry: tunnel kiln, spindle type kiln, bell jar kiln, tunnel kiln net-belt type etc. |
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