Mullite Brick, Mullite Stone, Al2O3 75% 80% 99% 1700-1750c 230X114X65/75/60/50/40/30mm Size Customized Brick Jm23 Jm26 Jm28 Jm30 for Hot Blast Stoves

Mullite Brick, Mullite Stone, Al2O3 75% 80% 99% 1700-1750c 230X114X65/75/60/50/40/30mm Size Customized Brick Jm23 Jm26 Jm28 Jm30 for Hot Blast Stoves

Sintered mullite bricks made from synthetic calcined mullite are widely used in high-grade kilns such as hot blast stoves and blast furnaces because of their excellent suddenly-changing temperature resistance
Send Inquiry
Chat Now
Description

We adhere to the tenet of 'Integrity, Integrity, Focus on Innovation' and maintain our leading position in the industry of Castable, Alumina Fibre Blanket, Single Stage Hot Coal Gas Producer. We regard comprehensive testing methods and mature after-sales service as the guarantee. Our company's integrity, strength and product quality are recognized by the industry.

1,Product description:
Sintered mullite bricks made from synthetic calcined mullite are widely used in high-grade kilns such as hot blast stoves and blast furnaces because of their excellent suddenly-changing temperature resistance,good wear resistance, low creep rate performance and low reburning line change rate.




IW`E6M6%W7Q~Y88QR{]S6X6


2,Index of Mullite Brick for Hot Blast Furnace:

Item

JM-65

JM-70

JM-80

Al2O3  %

65

70

80

Fe2O3  %

1.5

0.5

0.5

Refractoriness  ℃

1790

1790

1850

Apparent porosity  %

24

20

21

Bulk density  g/cm3

2.5

2.55

2.7

Cold crushing strength Mpa

60

65

75

Refractoriness under load T2,℃

1550

1700

1700

Reheating linear change %


    1400℃×2h 

+0.2~-0.1


1450℃×2h 

+0.2~-0.1

1500℃×4h   

+0.2~-0.1

Creep rate 0.2MPa×50h,%

1350℃,0.8

1450℃,0.6

1500℃,0.6

Thermal shock resistance, times

 30

25

20


3,Knowledge of Mullite Brick for Hot Blast Furnace:Alumina content of products is generally 65-75%, mineral composition is mainly mullite phase, a small amount of corundum phase, glass phase.Refractoriness is greater than 1790℃, refractoriness under load is greater than 1550 ~ 1700 ℃.The products are divided into sintered mullite bricks and fused mullite bricks according to different production processes, according to the difference of alumina, it can be divided into three grades: JM-65, JM-70 and JM-80.The crystallization of fused mullite brick is larger than that of sintered mullite brick, and its thermal shock resistance is better than that of sintered product. The products are mainly used in hot blast stove, blast furnace, regenerator of glass furnace, petroleum cracking equipment, dry quenching coke oven, etc.

4,Main features of Mullite Brick for Hot Blast Furnace:

1, High refractoriness, >1790℃

2,High refractoriness under load, 1550~1700℃。

3, The creep rate at high temperature is low, 1500℃×25-50h,≤0.6%

4, Good thermal shock resistance, 1100℃, water cooling, > 20 times.

5, Good corrosion resistance of acid-resistant slag

5,Factors influencing the properties of mullite bricks:

1, The Value of Al2O3/SIO2 in Products

2, Types and Contents of Impurities in raw materials

3, Particle size of raw materials, firing temperature and holding time of products

6,Cautions in the use of Mullite Bricks

1,Contact with alkaline substances is prohibited in high temperature environment

2, It is not suitable to use in high water vapor content environment.

7.Good feedback of product use effect,the products have been exported to Australia, Oman,Kenya,and India.

8.We are a professional supplier, who can provide customers with free product technology, use and other issues.



Do you want to find a professional supplier of refractory products?


Do you want to find a stable and credible supplier?


Then please contact with us


Contact me:Email:wp@cnjingganrefractory.com/sdwenping@163.com

TEL: 86-0533-4188518 / FAX: 86-0533-4188518 

Rose:+86-13275332819(wechat/whatsapp number)


We supply you best benefit of money and we're ready to create with each other with Mullite Brick, Mullite Stone, Al2O3 75% 80% 99% 1700-1750c 230X114X65/75/60/50/40/30mm Size Customized Brick Jm23 Jm26 Jm28 Jm30 for Hot Blast Stoves. Quality is factory's lifestyle continue to improve, to ensure product quality in line with market and customer standard requirements. Guided by customer needs, with the goal of improving production efficiency and quality, we continue to introduce foreign advanced technology to bring customers more comprehensive solutions.

Hot Tags: mullite brick for hot blast furnace, China, manufacturers, suppliers, factory, use, property, Cast steel graphite mould, High aluminum properties, Calcined Alumina Powder, Insulation Brick, Tin Bath Bottom Blocks, Low thermal conductivity spinel refractory brick

Send Inquiry
Contact Us
  • Tel: +86-533-4188518
  • Mob: +8613275332819
  • E-mail: sdwenping@163.com
  • Add: Room 711, NO.3, Yanhe Road, Boshan, Zibo, Shandong, China