Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

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Product Description:

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF  


Product Description for Corundum Brick


The products are produced by corundum and chromium oxide as main materials, formed from casting, being treated under high temperature.

Reheating furnace chrome corundum slideway brick. High-speed heat flow erosion and ball dynamic conditions of wearing and tearing, and the low-melting materials under high temperature erosion, infiltration of rotary kiln body, the demanding is rigour for the refractory materials. These materials have high temperature strength, wear resistance, corrosion resistance, long-life time and other excellent properties

Structure& Advantage for Corundum Brick


Characteristics of our corundum brick 
1) After shaping and sintering, cutting and grinding processing are done, drilling is necessary according to brick drawings. 
2) Little impurities of iron and alkali metal 
3) High temperature resistance 
4) uniform structure and high cold crushing strength 
5) Good thermal shock resistance, stable volume, good insulation performance in high temperature 
6) Low thermal conductivity 

We Are Suppiler for


Below are some of our customers

Allied Mineral Products,inc

Refractories Incorporated

Sunward Refractories Co.,Ltd

Lilama69-1 Joint Stock Company etc.

Raw Material for Corundum Brick


Image for Raw Material

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Major Images for Corundum Brick

Corundum Bricks & Other Shape Bricks

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Packaging & Delivery for Corundum Brick

1.The Corundum or Mullite Insulating Fire Brick will be packed as the standard of exporting or packed on wooden pallet with three layers water-proof shrink film and tightened with plastic/steel bandages,when in the transportation process,we should pay attention to moisture-proof and light handling.
2.The packing of Refractory Brick will accept customer's requirement if any.
3.Delivery within 7-15 working days after your payment.
4.Fast delievery accepted by customers.

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF


 for Corundum Brick

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

Why Us

1. Strong professional:

We are state-owned company, ranking 267th/Fortune Global 500. We have clients from over 160 countries and wholly-owned overseas subsidiaries and branches in 10 countries. 
Our company has thirty years producing experience in refractory product. Our manager will supervise on a various refractory’ s production materials, process control, quality supervision and package delivery,and ensure the products
are 100% qualified.

2. Annual supply:
Our company has passed ISO9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28,800-35,000 tons..
3. Annual exports:

Now we have gained a global sales network reaching Taiwan, Russia, Mongolia, South Korea, Vietnam, Pakistan, Bulgaria, Finland, Greece,Spain, Congo, Angola, South Africa, and Maldives,Jordan and so on.

4. Production equipment:
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.

5. Testing equipment; 
Our company’s testing equipments as follows: 
High Temperature RUL Tester
Bulk Density Tester 
The Pressure Tester
Refractoriness Tester

FAQ for Corundum Bricks

Corundum Brick Refractory Insulation Usage for Heating Furnace in EAF

3.Common question:

Q1:Are you a manufacture or trader?

A:Factory+trade(mainly factories, at the same time,we operates other related products).

Q2:Can we visit your factory?

A:Sure,welcome at any time, seeing is believing.

Q3:What's the MOQ of trial order?

A:No limit,We can offer the best suggestions and solutions according to your condition.

Q4:Which payment terms can you accept?

A:T/T,L/C are available for us.

Q5:After an order is confirmed, when to deliver?

A:15-25days after deposit.

Q6:Is your company accept customization?

A:We have own factory and excellent technical team,and we accept OEM service.

Q7:How about your company's certification?

A:ISO9001 and Test Report,also we could apply other necessary certification.

Q8:How to slove the quality problems?

A:If the products are not confirmed to customer samples or have quality problems,our compay will be responsible to make compensation for it.

Q9:Can you offers samples?

A:Of coures,samples are free but freight paid by the buyers.

Q10:What is the service life of your bricks?

A:The service life of different bricks is unlike.It also depends on your using condition and method.

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Q:(refractory castable, silicon carbide brick, mullite bricks etc.) do testing should be commissioned by the project? What are the specific qualification standards? Thank you
Different refractory materials have different requirements, specific industry or national standards, such as LZ can check the mullite bricks GB / standard, there should be a harvest, do testing project is in accordance with the requirements of the LZ need to determine the use requirements
Q:What are the varieties of polycrystalline mullite?
Performance comparisonWe used chemical method to produce a microcrystalline structure, excellent thermal stability, temperature exceeds the 300~400. C.The small fiber diameter uniform, slag ball trace, bulk density for 1/2~1/3 products.The large amount of fiber products, high porosity, low coefficient of heat conductivity.It has large surface area, is the ideal material for high temperature catalytic carrier.
Q:Mullite brick
High refractoriness, up to 1790 degrees celsius. The softening start temperature is 1600~1700 degrees. The compressive strength at normal temperature is 70 ~ 260MPa. Good thermal shock resistance. The sintered mullite and fused mullite brick two. Sintered mullite brick with high bauxite clinker as the main raw material, adding a small amount of clay or raw bauxite as binder, after molding, sintering and made. Fused mullite brick with high bauxite, alumina and refractory clay as raw material, adding charcoal or coke fines as a reducing agent, formed by reduction of electric melting method to manufacture. The crystallization of fused mullite is larger than that of sintered mullite, and the thermal shock resistance is better than that of sintered products. Their high temperature performance mainly depends on the content of alumina and the uniformity of the phase distribution of mullite and glass. [1]
Q:Aluminum content 38, silicon content 55 What refractory bricks?
The mineral composition of the high alumina brick is determined by the bauxite used. The mineral composition of the clinker is usually mullite, corundum and glass. The theoretical composition of mullite is Al2O371.8%, SiO2 28.2%, and its melting decomposition temperature is 1840 DEG C. With acicular crystal, network cross structure, high temperature state showed better strength. Corundum in the form of alpha -Al2O3, melting point of 2050 degrees, hardness of Mohs 9, showing a granular and columnar crystal, has good chemical stability, acid, alkaline slag have a certain resistance. Based on the composition of mullite minerals, the phase composition of high alumina brick can be judged according to the content of Al2O3.
Q:The difference between the high aluminum corundum brick and corundum mullite brick
Wall tiles and floor tiles are collectively referred to as ceramic tile flooring
Q:The introduction of mullite brick
High alumina refractory with crystalline mullite (3Al2O3, 2SiO2) as the main crystal phase.
Q:Mullite bricks on alumina alumina is what?
Mullite (3Al2O3 - 2SiO2) high alumina refractory materials as the main crystal phase. The general alumina content in 65% ~ 75%. In addition to mineral composition of mullite, alumina containing low also contain a small amount of glass phase and cristobalite; alumina containing high also contain a small amount of corundum.
Q:What is the price of refractory bricks?
The construction is superior, the light insulating brick has good machinability, and the construction is convenient and simple, and the labor intensity can be reduced, the construction efficiency can be improved, and the construction period can be shortened. The price is determined by the choice of material and volume density, from several hundred to 5000 yuan, mainly with the choice of material
Q:What are the properties of corundum mullite
Heavy material has good compactness, high compressive strength, resistance to various corrosive gases, good thermal shock resistance, good thermal conductivity and wear resistance.
Q:Refractory bricks (mullite bricks) can be used on the walls of buildings?
In many architectural design, high-rise fire rating is placed in the important position of the topic, especially when the floor height is more than 20 layers, we have more stringent requirements for the choice of fire resistant materials. The building wall, kitchen flue, boiler flue, flammable zone must use a firewall barrier, in many refractory refractory brick is the product of choice for fire resistance of refractory brick masonry is more stable.

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