High alumina brick

Product description:
High alumina brick is a kind of litmusless refractory material which the aluminum content is above 48%. It is made by calcining and forming the alumina and other kinds of high alumina content material. The thermal stability of the product is excellent , withstand a maximum temperature above 1770℃. The performance of slag resistance is good. Widely applied to the lining of steel furnace , glass melting furnace, cement rotary furnace,etc.

Features:
Low creep rate
High thermal capacity
High temperature tolerance
Good performance of heat shock resistance

Application:
The kiln of cement and glass industry
Chemical and petroleum industry
Chemistry industry
Power sector

Technical data:

Item

High Alumina Brick

SK35

SK36

SK37

SK38

Al2O3  (%)  ≥

48

55

65

75

Refractoriness (oC) ≥

1750

1770

1790

1810

Refractoriness under Load (oC) ≥

1420

1470

1500

1520

Linear Change (%)

(2h)

1450 oC

1500 oC

1500 oC

1500 oC

-0.4-+0.1

-0.4-+0.1

-0.4-+0.1

-0.4-+0.1

Porosity (%) ≤

22

22

23

23

Cold Crushing Strength, MPa ≥

39.2

44.1

49

53.9