Standard sizing:This brick is special size for pipes of industry
furance ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to
customer's drawing
| High Alumina Brick |
| Item | 65% High Alumiba Brick | 55% High Alumina Brick | 50% High Alumina Brick |
| Al2O3 | (%) | ≥62 | ≥53 | ≥47 |
| SiO2 | (%) | ≤36 | ≤47 | ≤50 |
| Fe2O3 | (%) | ≤1.5 | ≤2.0 | ≤2.0 |
| TiO2 | (%) | ≤0.5 | ≤0.7 | ≤0.3 |
| Bulk Density ( g/cm3) | ≥2.5(Wall Brick) | ≥2.32(Wall Brick) | ≥2.28(Wall Brick) |
| ≥2.47(Checker Brick) | ≥2.29(Checker Brick) | ≥2.20(Checker Brick) |
| Apparent Porosity (%) | ≤18(Wall Brick) | ≤20(Wall Brick) | ≤20(Wall Brick) |
| ≤20(Checker Brick) | ≤21(Checker Brick) | ≤22(Checker Brick) |
| Cold Crushing Strength (MPa) | ≥60(Wall Brick) | ≥40(Wall Brick) | ≥35(Wall Brick) |
| ≥50(Checker Brick) | ≥30(Checker Brick) | ≥25(Checker Brick) |
| Creep Rate(20~50h,0.2MPa)(%) | ≤0.3(1550℃) | ≤0.3(1350℃) | ≤0.3(1300℃) |
| linear change on reheating (%) | -0.1~+0.25 | -0.25~+0.2 | -0.3~-0.1 |
| (1600℃×5h) | (1500℃×5h) | (1600℃×5h) |
| Linear thermal expansion 1000℃ (%) | 0.64 | 0.57 | 0.6 |
| Thermal Conductivity | 600℃ (W/mK) | 1.8 | 1.8 | 1.75 |
| 1200℃ (W/mK) | 2.1 | 2.1 | 2 |
Definition:
High alumina andalusite fused mullite refractory brick is a kind of
refractory material. The main component of this refractory brick is
Al2O3.
Due to different resources, national standards are not completely
consistent. For example, European countries specify a lower limit
of 42% for Al2O3 in high aluminum refractories.
In China, the Al2O3 content of high alumina bricks is usually
divided into three grades: I etc.-Al2O3 content> 75%; II
etc.-Al2O3 content is 60~75%. III etc.-Al2O3 content is 48-60%.
Low creep high alumina refractory brick is a neutral refractory
with an alumina content of over 48%.
It is formed by firing alumina and other raw materials with high
alumina contents. High thermal stability, fire resistance above
1770℃. It has excellent slag resistance and is used for the lining
of electric furnaces for steelmaking, glass melting furnaces,
cement rotary furnaces, etc.
High load soft low creep high alumina brick is a high quality
refractory made from super grade alumina, fused corundum and fused
mullite as the main raw materials.
This product has the advantages of low temperature creep, strong
corrosion resistance and excellent thermal shock stability.
Suitable for large and medium-sized hot blast stoves. This opens
the next article on the localization of high quality and high
quality imported refractory materials needed in China's new hot air
stove. The road to success is included in the country's “Spark
Project” project.
Advantage:
Good performance in high temp refractoriness under load
Lower thermal line expansion in high temp
Lower impurity content
Good thermal shock resistance performance
Excellent resistance in slag abrasion
Good cold crush strength
Application:
•Industrial furnace, glass furnace
• Chemical industrial furnace
• Utility industry furnace lining
• Heat insulation ventilation wall
Company Profile:
Zhengzhou Annec CO., Ltd. was founded in 2003, and has been a
NASDAQ listed corporation since 2011 with ticker identification
ANNC. Annec had become the industrial leader within China in the
areas of refractory production, Engineering for hot blast stove of
blast furnace, and capability for EPC project. Annec has its own
Provincial Enterprise Technology Center and Top Combustion Hot
Blast Stove Research Centre, Annec (Beijing) Engineering &
Technology Co., Ltd and four Manufacturers for Refractories. The
annual output of different type of refractories can reach 150
thousand tons, and undertaken capability of more than 10 turnkey
projects for hot blast
Annec owns four production sites as subsidiaries, Annec(Fuliang).
Annec(Fuhua). Annec(Fubao). Annec Furnaces Company. Annec(Beijing)
Engineering Company, as well as sets up several platforms such as
provincial academician workstations, provincial postdoctoral
research and development base, the provincial engineering and
technology center etc.
Annec has established a strong research and development team,
represented by 11 wee known experts including prof. Zhou Gouzhi, an
academician of Chinese academy of sciences, Mr. Wu Qichang, Chinese
national design master of iron-making engineering. Prof. Zhang
Bopeng, Inventor of the top combustion hot blast stove in Shougang
Steel. The team possesses a multi-subject crossing and combination
superiority in terms of metallurgy, materials science and
engineering, thermal engineering, structure engineering, etc. And
is beneficial to aim at the front of world steelmaking technology
and continuously new technologies and new products to meet
challenges of greenization, intelligence and collaboration in
steelmaking industry and refractories industry.
PPackaging and shipping
Standard packing: waterproof inner packing + outer packing suitable
for container transportation
