Corundum mullite bricks
The product is primarily manufactured from high-quality mullite and high-purity electrofused corundum as main raw materials with special additives, molded under high pressure and fired at high temperature. The product features high load softening temperature, dense structure, low porosity as well as excellent erosion resistance. It applies to the ceramic masonry of furnace bottom and cylinder of large and medium-sized blast furnaces as well as the combined masonry of air, iron and slag ports. It has been applied to furnaces of Wuhan Iron & Steel 3,200 m3, Benxi Iron & Steel 2,600 m3, Handan Iron & Steel 917 m3, etc.
Index |
WGM-1 |
WGM-2 |
Al2O3 , % |
≥88 |
≥85 |
Fe2O3 ,% |
≤1.0 |
≤1.2 |
Fire resistance Refractoriness,℃ |
≥1790 |
≥1790 |
Bulk density, g/cm3 |
≥3.0 |
≥2.9 |
Apparent porosity, % |
≤16 |
≤18 |
Normal temperature compressive strength CCS, MPa |
≥120 |
≥80 |
Flexural strength at room temperature CMOR,MPa |
≥15 |
--- |
Softening onset temperature at 0.2 MPa load |
≥1700 |
≥1620 |
Reburning line change rate(1500℃×3h) |
0~+0.1 |
--- |
Relevant case
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Henan Winna Group Industries Co., Ltd.
Service Hotline:
Address:
Beishankou Town, Gongyi, Henan Province
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