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Corundum Mullite Bricks
Description
Corundum mullite bricks are made of fused or sintered corundum and mullite as the main raw materials, formed at high pressure and sintered at high temperature, the main mineral phase consists of mullite and corundum phase . The product is white in appearance and accurate in size, It has excellent high temperature physical properties and chemical erosion resistance. It is mainly used in the key parts of iron and steel, electronics, petrochemical, nonferrous metals, refractories and other key parts of the kiln industry.
The Technical Parameters Are As Follows:
The Technical Parameters Are As Follows:
| Item | GM-80A | GM-80B | GM-75 |
| Al2O3,≥% | 80 | 80 | 75 |
| SiO2,≤% | 18.5 | 18.5 | 22 |
| Fe2O3,≤% | 0.3 | 0.8 | 1.5 |
| Bulk Density,≥g/cm3 | 2.9 | 2.85 | 2.8 |
| Apparent Porosity,≤ % | 18 | 18 | 18 |
| Cold Crushing Stength,≥Mpa | 120 | 100 | 80 |
| Refractoriness Under Load(0.2Mpa,0.6%),≥℃ | 1700 | 1700 | 1650 |
| Reheating Linear Change Rate(1500℃ⅹ3h),% | 0~0.2 | 0~0.5 | 0~0.5 |
| Thermal Expansion Coefficient(Room Temp. to 1300℃)ⅹ10-6 | 7.6 | 6.5 | 5 |
| Refractoriness,≥℃ | 1800 | 1800 | 1800 |
According to your needs, we can provide you with all kinds of suitable grade of standard brick, shaped brick, combined brick, adhere to the principle of quality first, to provide you with quality and thoughtful service, welcome to know and negotiate at any time.
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