Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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Corundum Mullite Insulating Refractory Castable For Iron Making Furnace
Description:
High Strength Wear-Resistant Corundum Mullite Refractory Castable has high crushing strength, good high temperature volume stability and thermal shock stability, excellent wear resistance and erosion resistance. It is can be used in lining of large power station boiler and other lining of high temperature furnace .
Applications:
1. Steel furnaces
2. Iron making furnaces
3. Glass kiln
4. Ceramic tunnel kiln
5. Cement kiln
physical and Chemical Indicators:
|
Items |
NGM-1 |
NGM-2 |
NGM-3 |
|
|
AL2O3 |
≥70 |
≥75 |
≥85 |
|
|
SiO2 |
≤25 |
≤17 |
≤13 |
|
|
Fe2O3 |
≤1 |
≤1 |
≤1 |
|
|
Bulk Density g/cm3 |
≥2.7 |
≥2.8 |
≥2.9 |
|
|
Cold Crushing Strength MPa |
110℃×24h |
≥100 |
≥110 |
≥120 |
|
1100℃×3h |
≥100 |
≥110 |
≥120 |
|
|
1400℃×3h |
≥115 |
≥120 |
≥125 |
|
|
MOR MPa |
110℃×24h |
≥15 |
≥15 |
≥15 |
|
1100℃×3h |
≥16 |
≥17 |
≥18 |
|
|
1400℃×3h |
≥17 |
≥18 |
≥19 |
|
|
0.2MPa Refractoriness Under Load ℃ |
≥1450 |
≥1480 |
≥1500 |
|
|
Thermal Shock Resistance, Times, [900℃, water-cooling] |
≥25 |
≥25 |
≥25 |
|
|
Maximum Service Temperature,℃ |
1550 |
1550 |
1600 |
|
|
Linear Dimensional Change % |
≤-0.3 |
≤-0.2 |
≤-0.2 |
|
Competitive Advantage: