Product Details
Low Iron Content High Alumina Brick Refractory High Alumina Thermal
Insulation
The most competitive price,good quality,safty packing,prompt
delivery time,and excellent after-sales services.
Lower ferric Oxide,lower porosity,higher refractoriness,higher
density,higher CCS and exact tolerance.
Specifications:
Ordinary High alumina brick
Item | HA60 | HA70 | HA75 | HA80 |
AL2O3(%) | ≥60 | ≥70 | ≥75 | ≥75-80 |
SIO2(%) | 32 | 22 | 20 | ≥18 |
Fe2O3(%) | ≤1.8 | ≤1.8 | ≤1.8 | ≤1.8 |
Refractoriness °C | 1790 | >1800 | >1825 | ≥1850 |
Bulk density,g/cm3 | 2.4 | 2.45-2.5 | 2.5 | 2.55-2.6 |
Softening temperature under load | ≥1470 | ≥1520 | ≥1530 | ≥1550 |
Apparent porosity,% | 22 | <21 | <21 | <20 |
Cold Crushing strength Mpa | ≥45 | ≥50 | ≥54 | ≥60 |
Phosphate bonded high alumina bricks
Item | LAP75 | LAP77 | LAP85 |
AL2O3 % | ≥75 | ≥77 | ≥80-85 |
Fe2O3 % | ≤3.0 | ≤3.0 | ≤1.8 |
Ca0 % | ≤0.6 | ≤0.6 | ≤0.6 |
Refractoriness °C | ≥1800 | ≥1800 | ≥1850 |
Bulk density g/cm3 | ≥2.65 | ≥2.70 | ≥2.80 |
Cold crushing strength MPa | ≥60 | ≥64 | ≥110 |
Refractoriness under load 0.2MPa °C | ≥1350 | ≥1300 | ≥1350 |
Application | Used for high temperature parts lining of cement rotary kiln | Used for Badly worn parts of cement rotary kiln |

Description:
Laurel high alumina bricks are produced with selected bauxite
chamotte by advanced process and strict quality control. The main
mineral components are corundum and mullite phases. It features
excellent high temperature mechanics and chemical corrosion
resistance.
Features
1.Resisting high temperature
2.Great bulk density
3.Low iron content
4.Good eroding resistance
Applications:
1. Steel furnaces
2. Iron making furnaces
3. Glass kiln
4. Ceramic tunnel kiln
5. Cement kiln
Competitive Advantage:
- Competitive Price. Make the products competitive in your market.
- Abundant Experience. Prevent cracks and twist in bricks.
- Different Moulds. Save mould fees for you.
- Strict Quality Control. Meet clients’ quality requirement.
- Large stocks. Guarantee prompt delivery.
- Professional Packing. Avoid damage and secure the goods in
transportation

Company Profile
QINGDAO LAURENT NEW MATERIALS CO.,LTD
QINGDAO LAURENT NEW MATERIALS CO.,LTD
- Established in 2003, and is situated in Qingdao City China, a city
being a grand sea port in the world.
- Its professional Team has been in the field of refractory over 10
years.
- Exported to over 50 countries, built firm business relations with
over 200 foreign customers.
- Dedicated to provide excellent quality product, service, technical
support to the global market.
- Strictly Quality Control from receiving order to loading container.
- Perfect after service
- Own a experienced and modern factory:
Zibo Laurel Refractory Material Co., LTD
- Established in 1998 and is situated in Zibo, Shandong, China
- specialized manufacturer of refractory bricks and ceramic fiber
products.
- covers 20,000 sqm floor area and can produce 50,000 tons of more
than 20 kinds of medium and top grade refractory and heat
insulation material annually.
- Professional R&D Team with over 10 years experiences.
- ISO9001 Certificate and others
Cooperations:
- Cooperated with lots of leading manufacturers for related category
products such as refractory castable, glass wool, high silica
products, etc.
- From company establishment, we are insisting on the principle of
“Quality First, Best Service, Competitive Price” We wish to be a good brand in customers’ mind and make
friends around the world.