Place of Origin : Zhangzhou,China
Post Date : 24-02-2012
Expiry Date : 01-03-2013

Bubble Alumina Insulation Firebricks Are Sintered Mainly By High-purity Alumina Refractory Bubble. Their Advantages Include Low Bulk Density, Low Thermal Conductivity, Excellent Compression Resistance, Outstanding High Temperature Kilns, Which Work In A High Temperature Environment, Such As Synthetic Ammonia Liquefaction Furnace, Ethylene Gas Furnace, Etc. Recommended Service Temperature: Less Than 1800℃.

Item
Brands

PL-1.3
PL-1.5
PL-1.7

Al2O3 , %
≥98

Fe2O3 , %
≤0.5

Bulk Density G/cm3,
1.3
1.5
1.7

Cold Crush Strength (MPa)
6.0
8.0
10.0

Testing Temperature When Reheated With 2% Contracting Rate (℃)


1700*8


1700*8


1750*8

Thermal Conductivity ,
(W/m·K)（350℃±25℃）
0.55
0.65
0.75