Name Type of ceramic fiber insulation castable refractory castable ceramic fiber GLNC-297 GLNC-397 GLNC-497 GLNC-597 maximum use temperature 1,050,115,012,501,350 long-term use temperature 1,000,110,012,001,300 chemical composition (%) Al2O3 ≥30 ≥35 ≥ 40 ≥40 Si O2 ≥30 ≥40 ≥35 ≥35 bulk density (kg / m3) wet 1150-1250 1150-1250 1250-1350 1250-1350 110 ℃ * 24h after drying 550600600700 after burning 500 (1000 ℃ * 3h) 550 (1000 ℃ * 3h) 550 (1200 ℃ * 3h) 550 (1300 ℃ * 3h) Thermal conductivity (W / mk) average temperature of 400 ℃ 0.115 0.118 0.150 0.171 The average temperature of 600 ℃ 0.116 0.155 0.175 0.195 average temperature 800 ℃ 0.185 0.195 0.221 Cold flexural strength (Mpa) ≥ 110 ℃ * After 24h after drying burn 0.4 0.4 0.5 0.5 0.4 (1000 ℃ * 3h) 0.4 (1100 ℃ * 3h) 0.4 (1200 ℃ * 3h) 0.4 (1300 ℃ * 3h) Cold compressive strength (Mpa) ≥ 110 ℃ * After drying 24h burn 0.5 0.5 0.6 0.6 0.4 (1000 ℃ * 3h) 0.5 (1100 ℃ * 3h) 0.5 (1200 ℃ * 3h) 0.6 (1300 ℃ * 3h) plus hotline shrinkage (%) ≤ 3 (1000 ℃ * 24h) 3 (1100 ℃ * 24h) 3 (1200 ℃ * 24h) 3 (1300 ℃ * 24h) Initial setting time (min) ≥ 60 60 60 60 off modulo time (h) 3-8 3-8 3-8 3-8