Insulating bricks

(1) High alumina insulation brick

Item Unit Specification

HBD-1,0 HBD-0,9 HBD-0,8 HBD-0,7 HBD-0,6 HBD-0,5

Al2O3 content % ≥48 ≥48 ≥48 ≥48 ≥48 ≥48

Fe2O3 % ≤2,0 ≤2,0 ≤2,0 ≤2,0 ≤2,0 ≤2,0

Bulk density g/cm3 ≤1,0 ≤0,9 ≤0,8 ≤0,7 ≤0,6 ≤0,5

Thermal conductivity (350+/-25.C) W/m.k ≤0,5 ≤0,45 ≤0,35 ≤0,35 ≤0,30 ≤0,25

Cold Crushing Strength Kgf/m2 ≥40 ≥35 ≥30 ≥25 ≥20 ≥15

Temperature of liner change within 2%on reheating % 1400 1400 1400 1350 1350 1250

(2) Fireclay insulation brick

Item Unit Specification

FBD-1,0 FBD-0,9 FBD-0,8 FBD-0,7 FBD-0,6

Bulk density g/cm3 ≤1,0 ≤0,9 ≤0,8 ≤0,7 ≤0,6

Thermal conductivity (350+/-25.C) W/m.k ≤0,5 ≤0,40 ≤0,35 ≤0,35 ≤0,25

Cold Crushing Strength Kgf/m2 ≥30 ≥25 ≥25 ≥20 ≥15

Temperature of liner change within 2%on reheating % 1350 1300 1250 1250 1200

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