High refractoriness brick for Transition zone of cement plant

item

unit

 index

LZ-75

LZ-65

LZ-55

LZ-45

AI₂O₃≥

%

75

65

55

45

refractoriness ≥

^oC

1790

1790

1770

1750

softening temp under 0.2MP_aload ≥

^oC

1520

1500

1470

1420

linear change of-heating

1500^oC,2h

%

+0.1
-0.4

1450^oC,2h

+0.1
-0.4

porosity ≤

%

23

22

pressure resistance at normal temp ≥

Mpa

53.9

49.0

44.1

39.2