
Laurel high alumina refractory bricks are made of high sintering selected bauxite chamotte by the advance process with strict quality control. It can be divided into different types according to the content and applications.
The working temperature will increase with higher alumina composition and the products are characterized by resistance to acid slags and good corrosion resistance. They are widely used in glass furnaces, blast furnaces, hot blast stoves, electric arc furnaces, cement kilns, and other thermal equipment.



1.High temperature resistant
2.Excellent mechanical strength
3.Good eroding resistance
4.Slag resistance
5.High thermal stability

Item | Data | |||||||
HA55 | HA65 | HA70 | HA75 | HA80 | ||||
Al2O3 | % | 55 | 65 | 70 | 75 | 80 | ||
Fe2O3 | % | ≤2.8 | ≤2.6 | ≤2.5 | ≤2.5 | ≤2.0 | ||
Apparent Porosity | % | 22-24 | 22-24 | 22-24 | 22-24 | 22-24 | ||
Bulk Density | g/cm³ | ≥2.25 | ≥2.35 | ≥2.40 | ≥2.50 | ≥2.60 | ||
Cold Crushing Strength | MPa | 45 | 50 | 55 | 60 | 65 | ||
Refractoriness Under Load (0.2MPa) | ºC | 1450 | 1500 | 1510 | 1520 | 1530 |

Laurel Group was established in 2003, and with over 20 years of production and trading experience, we are professionally engaged in the research, development, and sales of all types of refractory and insulation materials.
Refractory materials include alumina series bricks, magnesia series bricks, corundum series bricks, mullite bricks, andalusite bricks.
Insulation materials include ceramic fiber products, calcium silicate products, insulating brick, and rock wool insulation for the metallurgy, glass, ceramics, petrochemical, machinery, steel, cement, lime, construction and other industries.
OEM and ODM are also welcome here. We provide a global one-stop purchasing platform for refractory and insulation materials to offer you professional advice, qualified products and good service, helping you to make energy-saving easier.
We passed the ISO 9001 certificate, and many products got approval from domestic and foreign customers; our materials have been exported to Europe, South America, North America, Africa, Oceania, and Southeast Asia ,it is over 50 countries, and built firm business relations with more than 200 foreign companies.
Hope we will have the opportunity to work with you together.
We warmly welcome you to visit us at any time.



