Kaiyuan Refractories

A professional company produces and sales refractory materials for industry of cement, iron & steel ,non- ferrous metal and glass etc.
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Bubble Alumina Refractory Insulation Brick

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Product Description

Bubble Alumina and Bubble Zirconia Bricks 


item

Bubble AL2O3 Brick

Bubble ZrO2 brick
BA-85BA-90BA-99BZ-98
ºC
Max service temperature
1680170018002200
AL2O3 %                ≥85≥90≥99-
ZrO2  %---≥98()with stabilizer
SiO2  %                ≤13≤8≤0.2≤0.2
Fe2O3 %                ≤≤0.2≤0.2≤0.2≤0.2
Bulk density g/cm31.4-1.71.4-1.71.4-1.7≤3.0
MPa      ≥
Cold crushing strength
12≥10≥9≥8
ºC    ≥
(0.1MPa,0.6%)
Refractoriness under load
1650≥1700≥1700≥1700
%
(1600ºC×3h)
Reheating linear change rate
±0.3±0.3±0.3±0.2
×10-6
(room temp - 1300ºC)
Thermal expansion coefficient
~7.8~8.0~8.6~9.1
w/(m.k)
(Average 800ºC)
Thermal conductivity  ≤
0.8≤1.3≤1.5≤0.3

Application
,,,,.
Primarily used for lining of high temperature furnace and thermic insulant of ultra-high temperature furnace of the industrial as refractory material, industrial ceramics, electronice ceramics, petrochemical and metallurgical industries.       


Subsidiary

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Zhengzhou Kaiyuan Refractories Co.,Ltd

 Plant add: Chaoyanggou, Dengfeng city, Henan, China
  +86-371-53688552
  +86-371-53688078
 +86-13592427095 ( WhatsApp/Wechat )
  sales@kaiyuanref.com    

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