city cat high alumina bricks

High Alumina Brick is made of bauxite and other raw material with higher alumina content after moulding and calcining. High Alumina Brick is a kind of commonly used refractory materials, which has properties of high refractoriness, high strength, acid, good thermal stability and so on.
High Alumina Brick is widely used in used in blast furnace, hot blast stove, electric furnace.



1] Specification for High Alumina Bricks

Grade Control Properties Supplementary Properties
BD
HA		 AP
GP		 CCS
SBM		 Chemical Analysis
Al2O3 SiO2 TiO2 Fe2O3 CaO MgO Alkali Cr2O3 P2O5
g/cm3 % N/mm2 %
CAT HK 50 2,35 17,0 60 50,0 45,0 1,9 1,5 0,4 0,2 0,5
fired high alumina brick based on bauxite and fireclay
CAT HK 50 CB 2,40 16,0 65 52,0 42,0 2,0 1,5 0,4 0,2 0,5 1,1
Phosphate bonded and fired high alumina brick based on bauxite and fireclay
CAT HK 55 2,40 17,0 65 55,0 40,0 2,2 1,5 0,4 0,2 0,5
Fired high brick based on bauxite and fireclay
CAT HK 60 2,45 18,0 70 60,0 34,0 2,4 1,7 0,5 0,2 0,5
fired high alumina brick based on bauxite and fireclay
CAT HK 60 CB 2,50 16,0 75 62,0 31,0 2,4 1,7 0,5 0,2 0,5 1,1
Phosphate bonded and fired high alumina brick based on bauxite and fireclay
CAT HK 65 2,50 18,0 75 65,0 29,0 2,7 1,8 0,5 0,2 0,5
Fired high brick based on bauxite and fireclay
CAT HK 70 2,55 20,0 80 70,0 24,0 3,0 1,8 0,5 0,2 0,5
fired high alumina brick based on bauxite
CAT HK 70 BA 2,65 18,0 80 72,0 23,0 2,0 1,5 0,3 0,2 0,4
fired high alumina brick based on bauxite and andalusite
CAT HK 75 2,60 20,0 85 75,0 19,0 3,1 1,8 0,5 0,2 0,5
fired high alumina brick based on bauxite
CAT HK 80 2,70 20,0 90 80,0 14,0 3,2 1,8 0,5 0,2 0,4
fired high alumina brick based on bauxite
CAT HK 80 K 2,75 18,0 80 80,0 18,0 0,6 0,6 0,2 0,2 0,4
fired high alumina brick based on synthetic alumina
CAT HK 80 CB 2,75 18,0 95 82,0 10,0 3,2 1,8 0,5 0,2 0,4 1,1
Phosphate bonded and fired high alumina brick based on bauxite
CAT HK 85 2,75 20,0 95 83,0 11,0 3,0 1,7 0,5 0,2 0,4
fired high alumin abrick based on bauxite and calcined alumina
CAT HK 85 K 2,80 17,0 100 83,0 15,0 0,5 0,5 0,2 0,2 0,4
fired high alumina brick based on synthetic alumina
CAT HK 85 CB 2,80 18,0 100 83,0 10,0 3,0 1,7 0,5 0,2 0,4 1,1
Phosphate bonded and fired high alumina brick based on bauxite and synthetic alumina
CAT HK 85 CRB 2,85 17,5 110 80,0 9,0 2,4 1,5 0,3 0,2 0,4 5,0 1,1
Phosphate bonded and fired high alumina brick based on bauxite, calcined alumina and chrome oxide
CAT HK 90 DF 2,85 19,0 90 87,0 8,0 2,3 1,3 0,3 0,2 0,4
Fired high alumina brick based on bauxite and synthetic alumina
CAT HK 90 2,95 18,0 100 90,0 7,0 1,1 0,8 0,2 0,2 0,4
Fired high alumina brick based on bauxite and synthetic alumina
CAT HK 90 CB 3,00 16,0 110 90,0 6,0 1,1 0,7 0,2 0,2 0,4 1,1
Phosphate bonded and fired high alumina brick based on bauxite and synthetic alumina
CAT HK 95 3,10 15,0 100 95,0 4,0 0,2 0,3 0,1 0,1 0,1 1,1
fired high alumina brick based on synthetic alumina
CAT HK 99 3,15 17,0 100 99,0 0,1 0,1 0,1 0,1 0,1 0,3
fired high alumina brick based on synthetic alumina and corundum


2] Specification for High Alumina Bricks

<Grade Design Properties
RUL
YAR		 TSR
TSD
Water		 Thermal Expansion Thermal Conductivity
400◦ 800◦ 1000◦ 550◦ 800◦ 1050◦
Ta◦ Cycle % W/m.K
CAT HK 50 >1400 >20 0,2 0,5 0,6 1,8 1,6 1,5
fired high alumina brick based on bauxite and fireclay
>1400 >20 0,2 0,5 0,6
Phosphate bonded and fired high alumina brick based on bauxite and fireclay
CAT HK 55 >1400 >25 0,2 0,5 0,6
Fired high brick based on bauxite and fireclay
CAT HK 60 >1450 >30 0,2 0,5 0,6 1,9 1,8 1,7
fired high alumina brick based on bauxite and fireclay
CAT HK 60 CB >1450 >25 0,2 0,5 0,6
Phosphate bonded and fired high alumina brick based on bauxite and fireclay
CAT HK 65 >1450 >30 0,2 0,5 0,6
Fired high brick based on bauxite and fireclay
CAT HK 70 >1450 >30 0,2 0,5 0,7
fired high alumina brick based on bauxite
CAT HK 70 BA >1500 >35 0,2 0,4 0,6
fired high alumina brick based on bauxite and andalusite
CAT HK 75 >1450 >30 0,2 0,5 0,7
fired high alumina brick based on bauxite
CAT HK 80 >1500 >30 0,2 0,5 0,7 2,2 2,1 2,0
fired high alumina brick based on bauxite
CAT HK 80 K >1500 >25 0,2 0,6 0,8
fired high alumina brick based on synthetic alumina
CAT HK 80 CB >1500 >30 0,2 0,5 0,7
Phosphate bonded and fired high alumina brick based on bauxite
CAT HK 85 >1500 >30 0,3 0,7 0,8 2,2 2,1 2,0
fired high alumin abrick based on bauxite and calcined alumina
CAT HK 85 K >1500 >30 0,2 0,6 0,8
fired high alumina brick based on synthetic alumina
CAT HK 85 CB >1500 >30 0,2 0,5 0,8
Phosphate bonded and fired high alumina brick based on bauxite and synthetic alumina
CAT HK 85 CRB >1500 >30 0,2 0,5 0,7
Phosphate bonded and fired high alumina brick based on bauxite, calcined alumina and chrome oxide
CAT HK 90 DF >1500 >30 0,3 0,7 0,8
Fired high alumina brick based on bauxite and synthetic alumina
CAT HK 90 >1550 >25 0,2 0,6 0,8
Fired high alumina brick based on bauxite and synthetic alumina
CAT HK 90 CB >1550 >20 0,2 0,6 0,8
Phosphate bonded and fired high alumina brick based on bauxite and synthetic alumina
CAT HK 95 >1600 >25 0,2 0,6 0,8
fired high alumina brick based on synthetic alumina
CAT HK 99 >1650 0,2 0,7 0,8
fired high alumina brick based on synthetic alumina and corundum