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High alumina bricks for EAF roof
Burning bricks Unburning Bricks
DL-80 DL-75 BDL-80 BDL-75
Al2O3 % 80 75 80 75
Refractoriness 1790 1790 1780 1780
0.2Mpa(T0.6)RUL 1530 1520 1530 1520
PLC % 15502h 0.2-0.4 15502h 0.2-0.4 -- --
AP % Roof 19 19 18 18
Camber Angle 21 21 20 20
CCS Mpa 75 65 60 55