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Technical Specification of Fireclay & High Alumina Mortars
Product code

AL2O3
%

Fe2O3
%
PCE
Orton
Grain Size (mm)
Service Temp C
Nature of Setting
Characteristics & Use
AR-MH
30
2.0
29
0-1
1300
Ceramic
For laying medium heat duty bricks.
AR-NH
36
2.0
31
0-1
1400
-do-
For laying high heat duty bricks.
AR-SH
42
2.0
32
0-0.5
1450
-do-
For laying super heat duty bricks.
AR-Sillimanite
54
1.5
35
0-0.5
1500
-do-
For laying sillimanite bricks.
AR-60(special)
60
1.5
36
0-0.5
1550
-do-
For laying 60% alumina bricks.
AR-70(special)
70
1.0
36
0-0.5
1700
-do-
For laying 70% alumina bricks.
AR-80(special)
80
0.5
37
0-0.5
1750
-do-
For laying 80% alumina bricks.
AR-90(special)
90
0.5
38
0-0.5
1800
-do-
For laying 90% alumina bricks.
AR-50
50
2.5
33
0-0.5
1500
-do-
For laying 50% bauxite base bricks.
AR-60
60
3.0
34
0-0.5
1600
-do-
For laying 60% bauxite base bricks.
AR-70
70
3.5
35
0-0.5
1650
-do-
For laying 70% bauxite base bricks.
AR-80
80
2.0
37
0-0.5
1700
-do-
For laying 80% bauxite base bricks.
AR Moderate bond
30
2.0
29
0-1
1300
Air Setting
For laying 30% alumina bricks.
AR high bond
40
2.0
32
0-1
1450
For laying 40% alumina bricks.
AR- Super bond
54
1.5
35
0-0.5
1500
For laying 54% sillimanite bricks.
AR Spl. bond-70
70
1.0
36
0-0.5
1700
For laying 70% alumina bricks.
AR Spl. bond-80
80
1.0
37
16
1800
For laying 80% alumina bricks.

Note
The above data relates to standard sized, machine pressed bricks only.For bigger & pneumatically rammed shapes, results may vary. General size tolerance will be 1.5% or 2mm whichever is greater.

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