High Alumina Refractory Bricks Introduction:
 
We bring forth high quality High Alumina Bricks, which is manufactured to meet the requirements of neutral refractoriness where safe working temperature is more than 1500 degree centigrade. We offer High Alumina Bricks in different specifications as per customer requirements. 
 
High alumina brick is one kind of neutral refractory material, not only has certain corrosion resistance to acidic and alkaline slag, but also has the characteristics of high cold crushing strength, erosion resistance, strong penetration resistance, and high refractoriness under load.

Features Of High Alumina Refractory Bricks:
 
Excellent strength at ambient and elevated temperatures.2.High compressive strength.
Very low levels of iron and other impurities.
Lightweight and energy-efficient.
Lower heat storage than denser refractory.
Heats quickly and economically to operating temperature.

Specification

Item/Grade	Fire clay brick				High alumina brick
Item/Grade	SK-30	SK-32	SK-34	SK-35	SK-36	SK-37	SK-38	SK-40
AL2O3% (≥)	30	35	38	45	55	65	70	82
Fe2O3% (≤)	2.5	2.5	2	2	2	2	2	2
Refractoriness(SK)	30	32	34	35	36	37	38	40
Refractoriness under load, 0.2MPa, °C (≥)	1250	1300	1360	1420	1450	1480	1530	1600
Apparent porosity (%)	22-26	20-24	20-22	18-20	20-23	20-23	20-22	18-20
Bulk density (g/cm³)	1.9-2.0	1.95-2.1	2.1-2.2	2.15-2.22	2.25-2.4	2.3-2.5	2.4-2.6	2.5-2.7
Cold crushing strength ,MPa (≥)	20	25	30	40	45	50	60	70

Product Application

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