Alumina Refractory Bricks for Sale by Supplier

Alumina Refractory Bricks are kinds of neutral refractories, which can resistant to erosion of the acid and alkali slags or solvent, and the other chemical erosion. Alumina refractory brick is as a kind of aluminosilicate refractory, containing Al2O3 about 48%-90%. Alumina refractory bricks have better acid and alkali slag resistance performance than fireclay bricks. This kind refractory bricks are featured with wear and spalling resistance, anti-chemical erosion, high refractoriness under load, low creep rate, good thermal conductivity and good thermal shock resistance. The Alumina Refractory Bricks can be used in the metallurgy industry, construction materials, ceramic industry, and cement kilns, etc.

Shaped high alumina bricks

Alumina Refractory Bricks Composition

High alumina brick is one kind of the aluminum refractory bricks, which contains alumina contents more than 48%. The raw materials of high alumina bricks are bauxite and other materials that contain higher alumina in the process of forming and calcining. The main raw materials of high alumina bricks are bauxite, corundum, and clay, etc.

Anti Stripping High Alumina Bricks
Anti Stripping High Alumina Bricks

The production technology of the high aluminum refractory bricks is the same as the fire clay bricks. The production processing is as follows: after crushing, mixing, molding, drying, firing, inspecting, and packing. The difference is that the clinker proportion of the high alumina bricks is higher, up to 90-95%, and the clinker is selected before breaking for the deferrization. Besides, compared with the fireclay brick, high alumina bricks have higher firing temperature.

RS-Alumina-Bubble-Brick-for-Sale
RS Alumina Bubble Brick for Sale

 

High Alumina Bricks Composition & Processing

Alumina:  more than 48%

Clinker:   up to 90-95%

Raw materials:  bauxite, corundum, and clay

Production technology:  crushing, mixing, molding, drying, firing, inspecting, and packing.

Properties Of Alumina Refractory Bricks

High Aluminum brick has good thermal stability and high refractoriness, more than 1770℃. One of the important properties of the high alumina refractory brick is the structural strength at high temperature, which is reflected by the refractoriness under load and the high temperature creep rate. Besides, alumina brick is wear and spalling resistance, and chemical resistance. And because of the higher Al2O3 proportion, the chemical properties of alumina bricks are close to neutral refractory, which is resistant to acid and alkaline slag erosion. In addition, it is featured with good thermal conductivity, good thermal shock resistance, and high refractoriness under load, which increases with the raise of the Al2O3 content.

Alumina Refractory Bricks Properties

  1. Good thermal stability
  2. High refractoriness, more than 1770℃
  3. Good thermal conductivity and good thermal shock resistance
  4. High refractoriness under load
  5. Structural strength at high temperature
  6. Wear and spalling resistance, and chemical resistance
Low-Creep-High-Alumina-Brick
Low Creep High Alumina Brick

Alumina Refractory Bricks Specification

Items RSLZ-80 RSLZ-75 RSLZ-65 RSLZ-55 RSLZ-48
Al2O3 ,% 80 ≥75 ≥65 ≥55 ≥48
Refractoriness °C ≥1790 ≥1790 ≥1790 ≥1770 ≥1750
Bulk density,g/cm3 2.65 2.5 2.45 2.4 2.3
Softening temperature under load 1530 ≥1520 ≥1500 ≥1470 ≥1420
Permanent linear change,% 0.1 0.1 0.1 0.1 0.1

Application Of Alumina Refractory Bricks

Alumina Refractory Bricks can be used in the metallurgy industry, building materials, and ceramic industry, etc. Such as the following parts:

  • Ladle, chock plug, nozzle brick, and hot-metal car;
  • Boiler, air furnace, open hearth regenerator, and roof of the electric furnace;
  • Blast furnace, and hot blast stove;
  • Rotary kiln, and high temperature tunnel kiln;
  • Steel-making furnace, and lass furnace;
  • Reverberatory furnace, and eat treatment furnace;
  • Garbage incinerator, and ecirculating fluidized bed furnace, etc.
high-alumina-runner-bricks
high alumina runner bricks

Alumina Refractory Bricks Manufacturer

Zhengzhou Rongsheng Kiln Refractory Co. Ltd, after more than decades of hardworking and development, it has become a comprehensive enterprise producing refractory materials for metallurgy, building materials, electric power and chemical industry, etc. Rongsheng is an alumina bricks manufacturer that sales all kind of refractory bricks. Such as High Alumina Refractory Bricks, high porosity Alumina Refractory Bricks, Low Creep High Alumina Brick, etc.

High-aluminum-hole-bricks
High aluminum hole bricks

Rongsheng Refractory Materials:

Shaped refractory bricks:  high alumina bricks, alumina bubble bricks, silicon bricks, fireclay bricks, mullite bricks, magnesia brick, carbon bricks, corundum bricks and various of compound refractory bricks.

Unshaped refractories:  refractory castables, high alumina cement, and calcined bauxite aggregate , etc.

Rongsheng Service

RS Refractory Materials have passed ISO9001: 2005 Quality System Certification, Environmental Management System Certification, and Occupational Health and Safety Management System Certification. Rongsheng refractory bricks have exported to Japan, Indonesia, Iran, Kazakhstan, Vietnam, etc. If you choose RS for the supplier of refractory materials. You will get the multiple service protection.

Professional sales team, advanced physical and chemical testing equipment and detection methods, several patents owner, and cooperation with colleges and universities. Service team: offer consumers the best all-round services in applications, construction and installation, operation and technical training, etc.

By scientific management, sound customer information management system and abundant products, Rongsheng provides satisfactory, timely, and efficient service to the consumers. Rongsheng all members are looking forward to get a working relationship with you. Welcome!