High Alumina Brick Quality Purchase Factors

The quality of high alumina bricks depends not only on the weight, but also on the color. The understanding of these elements is very necessary for buyers.

1. Weight: Weigh the weight of a single brick. According to the weight specification, the weight of the first-class high alumina brick is 4.5 kg. The weight of the second grade high alumina brick is 4.2 kg, and the weight of the third grade high alumina brick is 3.9 kg. The equal grade and the equal parameter type can be regarded as excellent high alumina bricks. On the contrary, those that do not reach this weight are of good quality. If there are cracks, uneven corners, broken corners, etc., it is a substandard product. 2. Color: When purchasing high alumina bricks, the first thing to look at is color. Excellent high alumina bricks have smooth surface, yellowish white, flat sides, no broken corners, and no cracks. High alumina brick (highaluminarefractory.com/high-alumina-fire-bricks/) has the characteristics of good application quality, high refractoriness and long service life. It is the primary refractory brick product used in industrial kilns. If you are a kiln company or a buyer of refractory materials, do you often have a headache? You can’t distinguish the quality and grade of high-alumina bricks correctly when inquiring, and you buy low-grade products at a high price, and then reduce the use of the kiln Longevity, whether you vacillate when choosing a product, the variety of choices is dazzling. High alumina bricks are generally used in industrial kilns such as steel, steelmaking, hot blast furnaces, electric furnace tops, blast furnaces, reverberatory furnaces, rotary kiln linings, etc. in China. The main components are high alumina bauxite; sillimanite group minerals (including blue Spar, red foundation stone, sillimanite, etc.); artificial composition materials, such as industrial alumina, composition mullite, fused corundum, etc.