High alumina bricks can be said to be one of the most widely used refractory bricks in the refractory industry. It can be used in a variety of thermal kilns in the steel industry, building materials industry, power industry, etc. Due to the different thermal kiln equipment, the location of the refractory lining is different, and the specifications of high alumina bricks can also be as many as hundreds. Next, let’s first understand the shape specifications of high alumina refractory bricks.

Brief Introduction of High Alumina Refractory Brick

The main component of high alumina brick is AL2O3. If the Al2O3 content is higher than 90%, it is called corundum brick. Due to different resources, national standards are not completely consistent. For example, European countries stipulate that the lower limit of Al2O3 content for high aluminum refractory is 42%. In China, the Al2O3 content in high-alumina bricks is usually divided into three grades: I grade, Al2O3 content >75%; II grade, Al2O3 content 60-60%; III grade, Al2O3 content 48-60%.

High-alumina refractory brick is a kind of aluminum silicate refractory product with aluminum oxide (Al2O3) content higher than 48%.

Generally, a neutral refractory with an alumina content above 48%. High-alumina refractory bricks are made of alumina or other raw materials with high alumina content through molding and calcination. High thermal stability, fire resistance above 1770℃. It has good slag resistance and is used for lining steel-making electric furnaces, glass melting furnaces, cement rotary furnaces, etc.

Shape Specification of High Alumina Refractory Brick

General high-alumina refractory bricks refer to straight-wall bricks and radial bricks for thermal equipment such as industrial kilns. The straight brick, lateral thick wedge brick, vertical thick wedge brick, vertical wide wedge brick and arch foot brick are used. The shape and specifications of these different high-alumina refractory bricks can correspond to the following pictures of high-alumina refractory bricks.

1. Straight brick

Straight bricks are straight parallelepiped bricks with length b, width a and thickness c.

2. Side thick wedge brick

Side thick wedge brick is referred to as side wedge brick. It is designed as a wedge-shaped brick in which the distance b at the large end is designed in width and the size a at the large end is large/b small at the thickness.

3. Vertical thick wedge brick

Vertical thick wedge-shaped brick is referred to as vertical wedge-shaped brick. The distance b between the small and large ends is designed in the length, and the wedge-shaped bricks in which the large and small end sizes a/b are designed in thickness.

4. Vertical wide wedge brick

Vertical wide wedge bricks are referred to as wide wedge bricks. The distance b between the small and large ends is designed as a wedge-shaped brick with the length a and the size a large/small as the width.

5. Arch foot bricks are smaller than the load-bearing seat bricks on both sides of the semicircular vault brickwork.

Rongsheng Refractory Manufacturer

Rongsheng is an experienced manufacturer of refractories. Rongsheng’s refractory brick and refractory castable have been sold to more than 120 countries around the world. Such as South Africa, Chile, Egypt, Colombia, Uzbekistan, Italy, Indonesia, Ukraine, Hungary, Spain, Kenya, Syria, Zambia, Oman, Venezuela, India, Peru, the United States, Ethiopia, etc. Rongsheng’s High Alumina Brick Refractory Material Sintering Kiln and refractory castable production line with an annual output of 80,000 tons can provide high-quality refractory materials for thermal equipment of various industrial kilns. To purchase high-quality special-shaped high-alumina refractory brick products, please contact us and leave your specific needs. Our Rongsheng service not only has strong productivity, but also the quality of our products is more competitive. Look forward to cooperating with you.