$Refractories Materials For Sale Manufacturer$

High Alumina Bricks Series

► First grade high alumina brick
► Second grade high alumina brick
► Third grade high alumina brick
► Special grade high alumina brick

Wechat: +86 15237176073

Whatsapp: +86 15237176073

Email: [email protected]

Product Introduction

Specifications of Ronghua High Alumina Refractory Brick

Ronghua offers the following types. Besides, we also offer SK-36 and SK-38 high alumina bricks. Contact us for details.

Item		LZ-80	LZ-75	LZ-70	LZ-65	LZ-60	LZ-55	LZ-48
Al₂O₃, /%	≥	80	75	70	65	60	55	48
Apparent Porosity, %	≤	21	24	24	24	26	22	22
Cold Crushing Strength, MPa	≥	70	60	55	50	45	45	40
0.2MPa Refractoriness Under Load, ℃	≥	1530	1520	1510	1500	1430	1450	1420
Permanent Linear Change, %		1500℃*2h -0.4~0.2		1450℃*2h -0.4~0.1

Video of Ronghua Refractory Bricks

Introduction of Ronghua High Alumina Refractory Brick

Raw material: Ronghua brick is a neutral refractory material with more than 48% content of Al2O3. The main raw materials are alumina clinker and bonded clay.
Burning temperature: The high-quality raw materials are burned between 1500-1600°C and form bricks.
Quality control: Ronghua has a strict quality control system, including raw materials quality testing, quality reports of high alumina bricks, etc.
Production equipment: 400T-1000T presses, 2*168-meter natural gas tunnel kilns, etc.
Features: It has high thermal stability. The fire resistance is above 1770 °C.
Uses: The residual resistance is better, and it is used in the lining of the steelmaking electric furnace, glass furnace, and cement turning furnace.
Shapes: Besides standard size (230*114*65mm), Ronghua offers side-arc shape, side-arc shape, anchor brick, arc brick, etc.

Advantages of Ronghua Alumina Refractory Bricks

High refractoriness: The refractoriness is as high as 1750-1790 degrees Celsius.
High load softening temperature: The high alumina content and low impurities make the load-softening temperature higher than that of fire clay brick.
Strong slag resistance: Alumina can well resist acidic and alkaline slag.
Strong thermal shock resistance: The thermal expansion coefficient is low. It is not easy to deform at high temperatures.
Strong mechanical properties: High alumina refractory bricks can better withstand compressive and flexural strength.

Applications of Ronghua High Alumina Refractories Bricks

Metallurgical industry: Blast furnaces, hot blast stoves, electric furnaces, open hearth furnaces, converters, melting furnaces, sintering furnaces, etc.
Building materials industry: Cement kilns, glass kilns, ceramic kilns, refractory kilns, etc.
Chemical industry: Chemical furnaces, reactors, pipelines, burners, etc.
Power industry: Boilers, turbines, flues, dust collectors, etc.

Ronghua High Alumina Bricks Used in Blast Furnace — Used in Blast Furnace

High Alumina Bricks Used in Blast Furnace - Ronghua — Used in Blast Furnace – Ronghua

Global Partners of Ronghua High Alumina Refractories Bricks

Partners from over 50 countries have chosen Ronghua high alumina bricks. Our partners include RUSAL, CHALCO, ALBA, POSCO, PSM, and others. They have a high level of recognition for us and maintain long-term cooperation.

Contact Ronghua Refractory

Ronghua Refractory has more than 20 years of manufacturing and exporting refractory bricks. We have international certificates, patents of refractory bricks, and other certificates. We have strong production capacity and strict quality control system to guarantee the quality. Moreover, our professional manager and technical professionals will guide you to choose the suitable bricks and high-temperature construction. View some video on Ronghua YouTube.