High Alumina Bricks

 

Characteristics and Application of High Alumina Brick

High aluminum refractory brick belongs to the silicate aluminum refractory, it is a common refractory produced from refractory clay and high bauxite. The main mineral composition of these kinds of products is aluminum oxide, mullite and corundum, with good physical properties, through chemical analysis and physical experiments, the indexes such as refractoriness and soft charge all reach international and ministerial standards, Widely used in blast furnace, hot air stove, thermal storage room, machinery manufacturing, petrochemical and other industries.

High Physical and Chemical Indicators of High Alumina Brick

Designation	Model	Refractoriness ℃≧	Load softening temperature ℃	Porosity%≦		Room temperature compressive strength（Mpa）	Al2O3%≧	Fe2O3%
Electric Roof Brick	DL-80	1790	1550	17	85		80
	DL-75	1790	1530	18	80		75	<1.7
High Alumina Bricks for Blast Furnaces	GL-65	1790	1500	19	65		65	1.8
	GL-55	1770	1490	19	65		55	1.8
	GL-48	1750	1460	18	60		48	1.8
General High Alumina Brick	LZ-75	1790	1540	22	65		75	1.8
	LZ-65	1790	1520	22	65		65	1.8
	LZ-55	1770	1500	21	65		55	1.8
Clay Brick for Blast Furnace	ZGN-42	1750	1460	15	60		42	1.6
	GN-42	1750	1450	16	50		42	1.6

 
High Aluminum Brick Sample Pictures




High Aluminum Brick Features

1.Refractoriness

High alumina brick refractoriness is higher than clay brick and semi-silica brick refractoriness, up to 1750 ~ 1790 ℃, which belongs to high-grade refractory materials.

2.Load softening temperature

Because high-alumina products in the high Al2O3, less impurities, the formation of fusible glass less, so the load softening temperature than clay brick, but the mullite crystallization does not form a network of organizations, so the load softening temperature is still not higher than silica bricks.

3.Slag resistance

There are more Al2O3 in high alumina brick, close to the neutral refractory material, can resist the acid slag and alkaline slag erosion, because it contains SiO2, so the ability to resist alkaline slag resistance than acid slag weak.

Introduction of our company

Gongyi Taurus Refractory Material Factory is a professional refractory materials manufacturers and refractory materials suppliers,mainly supply Refractory Bricks,Unshaped Refractories,Silicon Carbide Refractory Castable,Castable Refractory Cement,Pouring Material,Castable Refractory Concrete,Silica Ramming Mass etc. series of refractory materials products, sincerely welcome everyone to visit.

Contact informations

Contact: Mr. Niu
Tel: +86-371-64372566
Fax: +86-371-64372588
Mobile Phone: +86-15137151612
Whatsapp: +86-15137151612
Email: info@jnrefractory.com
          gyjinniu@163.com