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High Alumina firebrick

High Alumina Bricks

Size: International standards

Working Temperature °C: >1790

Application: Uitable for blast furnace, coke oven, heating furnace, steel stove, colored gold furnace, boiler, cement kiln, glass kiln and chimney and different kinds of kiln thermal equipment.

Description

High alumina bricks series refractory material description:The normal high alumina bricks is divided into LZ-75、LZ-65 、 LZ-55 、LZ-48 kinds of numbers,high alumina refractory bricks has the characteristic of high refractoriness according to the physicochemical index, high load softening temperature, thermal shock stability, acid, alkali, anti-erosion and so on.

High alumina bricks technical data

Brand index
LZ-75 LZ-65 LZ-55 LZ-48
AI2O3≥  / % 75 65 55 48
refractoriness  /  ℃ 1790 1790 1770 1750
softening temp under 0.2MPaload 1520 1500 1470 1420
linear change of-heating /% 1500oC,2h 0.1  
-0.4
1450oC,2h   0.1
-0.4
porosity / % 23 22
cold crushing strength /Mpa 53.9 49 44.1 39.2

Application Areas：

Uitable for blast furnace, coke oven, heating furnace, steel stove, colored gold furnace, boiler, cement kiln, glass kiln and chimney and different kinds of kiln thermal equipment.

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