High Performance Dense Refractory Bricks 230*115*60mm Alumina Firebrick

• Customization: Available
• Application: Blast Furnace, Cement Kiln, Ceramic Kiln, Chemical Kiln, Glass Kiln, Steel-Making Furnace, Industrial Furnace
• Material: High Alumina
• Model NO.: LZ-80, LZ-75, LZ-70, LZ-65, LZ-55, LZ-48 firebrick
• Product Name: Alumina Firebrick
• Apparent Porosity: Less Than 23%
• Bulk Density(Kg/M3): 2.0-2.5g/cm3
• Keyword: High Alumina Refractory Bricks
• Cold Crushing Strength(MPa): 40~70MPa
• Model Number: Lz-80,Lz-75,Lz-70,Lz-65,Lz-55,Lz-48 Fire Brick
• Refractoriness: 1770 Celsius
• Color: Yellow Fire Brick
• Al2O3 Content (%): 48%-85%
• Certificate: ISO9001,CE
• Transport Package: International Standard
• Specification: Customizable
• Trademark: Zhengzhou Rongsheng Refractory Co., Ltd.
• Origin: Zhengzhou Rongsheng Refractory Co., Ltd.
• HS Code: 6902200000
• Production Capacity: 5000ton/Tons Per Year

Product Description

High Performance Dense Refractory Bricks 230*115*60mm Alumina Firebrick

Product Description

High Alumina Refractory Bricks Introduction

High alumina brick is a kind of refractory material, the main component of this kind of refractory brick is AL2O3.

If the Al2O3 content is higher than 90%, it is called corundum brick. Due to different resources, national standards are not completely consistent.In China, according to the content of Al2O3 in high alumina bricks, it is usually divided into three grades: Grade I--Al2O3 content>75%; Grade II--Al2O3 content is 60~75%; Grade III--Al2O3 content is 48~60%.

The production process of high-alumina bricks and multi-clinker clay bricks is similar. The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90~95%. The clinker needs to be classified and screened before being broken. Higher, such as I, II and other high alumina bricks are generally 1500~1600 ºC when fired in tunnel kiln.

High Alumina Refractory Brick Feature

1. High refractoriness;
2. High temperature strength;
3. High thermal stability;
4. Neutral refractory;
5. Good resistance to acid and basic slag corrosion;
6. High refractoriness under load;
7. High temperature creep resistance;
8. Low apparent porosity;

Item	Index
International Code Name	SK35	SK36	SK37	SK38	SK40
Chinese Code Name	LZ-48	LZ-55	LZ-65	LZ-75	LZ-80
Al2O3,%	≥48	≥55	≥65	≥75	≥80
Fe2O3,%	≤2	≤2	≤2	≤2	≤2
RefractorinessºC,min	1750	1770	1790	1790	1790
Apparent Porosity,%	≤22	≤22	≤23	≤23	≤21
Bulk Density,g/cm3	2.25-2.35	2.25-2.35	2.25-2.35	2.25-2.35	2.25-2.35
Cold Crushing Strength Mpa	≥39	≥44	≥49	≥54	≥65
0.2Mpa Refractoriness Under Load T0.2 ºC,min	≥1420	≥1470	≥1500	≥1520	≥1530

Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to customer's drawing

More Products

Rongsheng Refractory is a professional refractory manufacturer. We can customize refractory bricks and insulation bricks of various sizes and materials according to customer needs. If you have more needs, please contact us!

Product Application

High Alumina Refractory Brick Application

High alumina brick is widely used for Widely used in blast furnaces, Hot Blast Stove,Steel ladle lining, Reheating furnace, Cement kiln, Tunnel kiln,boiler, coke oven, carbon furnace, glass kiln , Steel smelting furnace and various kiln lining and thermotechnical equipment, etc.

Packaging & Shipping

Packaging : Packed by sea-worthy wooden pallet + shrink wrapped + carton For example, Standard size of firebrick : 230x114x65mm Shipping : 384pcs/plt x 18 plots in one 20 feet container;

Wooden pallets with plastic film or according to your request. 

1. Strong packing protects the goods from any possible damage during transit. 
2. Solid packing and overall stuffing prevent the cases from vibration and jarring. 
3. Necessary precaution is taken to protect goods from pilferage or rain.

Every possible precaution is taken to ensure our products in prime condition when reach customers around the world.

Our Advantages

ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED has 30 years of experience in R & D and design of unshape refractory experts, holds 20 utility model patents and 7 invention patents, and has passed the ISO quality, environment and safety management system certification. The company is committed to the R & D, production and service of refractories used in metallurgy, electric power, nonferrous metals, building materials, chemical industry and other industries. Its products cover 198 kinds of materials and 2369 varieties in three categories (acidic, neutral and alkaline), providing overall solutions for refractories for 1200 domestic and 200 foreign customers.

Company Profile

ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED is located in Henan, China. Our company has professional scientific and technical personnel and production team, and we have our own fully automated factories. For more than 30 years, we have focused on the development and innovation of refractory materials and high-temperature furnace technology, and strive to provide customers with comprehensive, personalized and cost-effective services with high-quality products. Our products are widely used in electric power, metallurgy, petrochemical and other fields, and are exported to more than 120 countries and regions in the world such as Europe, America, Oceania, Southeast Asia, and the Middle East.

RS Refractories Co., Ltd. is a first-class supplier of refractory materials, we can provide you with the most advantageous quotations and products. Looking forward to be your partner!

Rongsheng Refractory has established complete quality system and conducted quality control through the whole staff and process that from raw materials, production, check and various parts strictly according to ISO9001 standard.Annual production capacity is up to 60000 tons. There are light and heavy weight materials production lines and all kinds of complete production, testing and check equipment, of which there are 10 series shaped press machine that from 400 tons to 1000 tons and two hyperthermia tunnel kilns whose length are 148m and 118m.


Rongsheng Refractory has professional sales and after-sale service team who provide customers all-around service about product application, construction installation and operation technology training etc. Now we have established cooperation relationship with many science and research unit and Our products are exported to 120 countries and regions including Asia, Africa, South America, and the Middle East


Rongsheng holds the third-level qualification certificate of metallurgical general contracting for furnace construction, the second-level anti-corrosion insulation qualification certificate, the quality management system ISO 9001 certification, 14001 certification, 45001 certification, 18001 certification and AAA-level credit enterprise certification. 

Rongsheng Refractory insists on pursuing the management idea of "honest, courtesy, innovation and professionalism" as the purpose, taking the "low price for better quality" as the foundation of enterprise development and creating "Rongsheng Brand" as the enterprise strategic goal. And Rongsheng provides satisfying, timely and efficient service for customers based on scientific management process, complete customer information management system and abundant products types.