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What are the differences between high alumina refractory bricks and magnesium bricks?

Date:2020-02-11 16:31 | From:Zhengzhou Sunrise Refractory | Author:admin

Brief introduction, the former is mainly used for masonry blast furnace, hot blast furnace, electric furnace top, blast furnace, reverberatory furnace, rotary kiln lining. In addition, high-alumina bricks are also widely used as open-hearth regenerative lattice bricks, plugs for nozzle systems, nozzle bricks, etc .; the main crystal phase of the latter magnesite is periclase, which has the typical characteristics of general alkaline refractory products. , But poor thermal shock resistance.

1. Fire resistance, high alumina refractory bricks have a fire resistance above 1770 ° C, and magnesium bricks have a fire resistance above 2000 ° C;
2. Load softening degree, 48% -80% of softening of high alumina products is generally 1420-1550; fire resistance of magnesium brick is 1520 ~ 1600 ℃, and the starting temperature of softening of high purity magnesium products can reach 1800 ℃
3. Price, the price of high-aluminum products per ton is more than 1,000 to 3,000 a ton, and the price of magnesium brick is thousands to 10,000 a ton;
4.Different use parts and different chemical properties, high alumina refractory products are neutral, suitable for industrial furnaces such as ironmaking blast furnaces, coke ovens, hot blast stoves, converters, glass kilns, cement rotary kilns, etc. Magnesium bricks are alkaline and used for Steelmaking furnace linings, ferroalloy furnaces, mixed iron furnaces, non-ferrous metallurgical industrial furnaces, lime kilns for building materials, grids and heat exchangers for heat storage chambers in glass industries, high-temperature calcining kilns and tunnel kilns for the refractory industry.
If you are interested in our fused azs bricks, or need other types of refractory materials, please contact our Tianyang Refractory Group, we will definitely provide you with the best quality refractory materials and the most reasonable quotation.

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