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Fire brick provides protection from the high operating temperatures in the furnace and are more resistant to mechanical damage and chemical attack than insulating brick. Fire bricks are composed of various combinations of alumina and silica containing materials. The chemical composition can vary from almost 100% alumina and little silica to 100% silica and little alumina. Fire bricks are classified into two broad categories; fireclay and high-alumina bricks.
Fireclay brick are classified based on physical propeties while high-alumina bricks are classified primarily on alumina content.
High alumina brick (Al2O3% content 55~80)
1. Advantage: well performance on Thermal shock resistance, Slag resistance, and corrosion resistance, with superior cold crushing strength
2. Application: widely used in various of kiln linings.
3. Refractoriness: 1770~1790℃
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Zhengzhou Sijihuo Refractory CO.,LTD has been established since 1999. Till now we have become a group company with 10 factories, leading refractory products: fire bricks with fire clay brick and high aluminum brick; insulation brick; refractory castable, inclduing brown corundum, which are widely used in industry kilns construction and maintance.
welcome to our factory for visitom. we are quite pleasure to provide you a mutual and professional businiess solution and make the long-time cooperation in future.
Provide professional product solutions. --- Do timely and effective cooperation.
We focus on products, rely on Quality. --- To acheive Mutual benefi

1. What is the difference between Refractoriness and Working temperature ?
Refractoriness: the refractory material withstands high temperature without melting and softening performance in the absence of load resistance. Usually working temperature is less than refractoriness about 350-400°C.
2. How are the products’ quality?
The products are strictly inspected during each procedure, so the quality could be absolutely guaranteed.
3. How about the sevice life for our fire brick?
1~2 years’ warranty-- It is our leading advantage in refractory industry benifit by our superior quality control system.
4. What is the service life of the bricks?
The service life of different bricks is unlike. It also depends on your using condition and method.
5. Are you a manufacture or trader?
Manufacturer indeed, and we have export right and license.
6. What's the MOQ of trial order?
No limit, We can offer the best suggestions and solutions according to your condition.
7. How about your company's certification?
ISO9001, Test Report, MSDS availabel upon request.
8. Can we get support if we have our own market position?
Please inform us your detailed mind on your market demand, we will discuss and propose helpful suggestion
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