Product Details

Superior High Alumina Refractory Wedge Brick

Product Description

The wedge brick is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, wedge brick is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.

The wedge brick has wide applications, mainly used in metallurgy, construction(cement and glass), petroleum, chemical industry, electric power and machine building.

Linquan series wedge brick is high quality dry pressed alumina bricks, ranging from 35% to 95% in alumina content.

$Superior High Alumina Refractory Wedge Brick$ $Superior High Alumina Refractory Wedge Brick$

Fire clay bricks

Chemical and Physical Properties		LQHAB70	LQHAB 60	LQHAB 50	LQHAB 80
Chemical Analysis (%)	Al2O3; ≥	70	60	50	80
	Fe2O3; ≤	2.0	2.0	2.0	2.0
Refractoriness (SK); ≥		38	37	36	39
Bulk Density; ≥		2.30	2.20	2.10	2.40
Apparent Porosity (%); ≤		23	23	23	23
Cold Crushing Strength		400	400	300	400
(Kg/cm²); ≥
Thermal Expansion (%)		0.65	0.60	0.53	800 0.65
at 1000°C
Permanent Linear Change (%)		0.3	0.3	0.3	0.2
at 1500°C × 2Hrs
Refractoriness under Load		1580	1500	1470	1670

$Superior High Alumina Refractory Wedge Brick$

The wedge brick is made from bauxite of super quality, bonding chamotte and additives. The advantages of these products are high refractoriness, anti alkaline/acid erosions, good strength under high temperature and good thermal shock resistance.They were widely accepted in thermal equipment of metallurgy, petroleum, chemical industry, construction materials, machinery and militaries, etc.

Production Flow

$Superior High Alumina Refractory Wedge Brick$