April 19, 2018

Castable Refractories

Properties HCR 18 HCR.16 LCR.14
Max. Limited Temp. oC 1800 1600 1400
Material Required for Estimating (kg/m3) 2850 2200 1850
Chemical AL2O3 80 53 36
Analysis SiO2 40 54
Permanent 110oC X 3hrs -0,03 -0,06 -0,12
Linier 1350oC X 3hrs -0,1 -0,1 -0,3
Change 1500oC X 3hrs -0,2
Cold Crushing Strength (kg/cm2)      
110oC X 24hrs 350-400 150-250 100-200
1000oC X 3hrs 300-400 100-200 100-200
1350oC X 3hrs 350-400 150-250 1250oC
1500oC X 3hrs 450-550 100-200
Bending strength (Kg/cm2)      
110oC X 24hrs 60-100 25-65 20-60
1000oC X 3hrs 60-90 26-60 20-70
1350oC X 3hrs 60-100 25-65 1250oC
1500oC X 3hrs 80-120 25-65
Thermal Conductivity (Kcal/m,h,C)      
260oC 0,93 0,67 0,52
540oC 0,99 0,68 0,59
800oC 1,04 0,63
Water required for casting (%) 8 10 13Castable