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Fire-Clay Insulating Refractory Brick

Product Description

Item NT-1.5 NT-1.3a NT-1.3b NT-1.0 NT-0.9 NT-0.8 NT-0.7 NT-0.6 NT-0.5 NT-0.4
Bulk density ≥g/cm3 1.5 1.3 1.3 1.0 0.9 0.8 0.7 0.6 0.5 0.4
Cold crushing strength≥MPa 5.88 4.41 3.92 2.94 2.45 2.45 1.96 1.47 1.17 0.98
Test temperature(Reheat linear change less then 2%) 1400 1400 1350 1350 130 1250 1250 1200 1150 1150
Thermal Conductivity(W/m.k)(350℃) 0.7 0.6 0.6 0.5 0.4 0.35 0.35 0.25 0.25 0.2