|
HIGH PURITY DENSE
CASTABLES |
| |
PAS
HEAT 'A' |
PAS
HEAT 'K' |
PAS
HEAT 'C' |
PAS
HEAT 'M' |
PASHEAT 'A' (HS) |
PASHEAT 'A' SUPER |
PASHEAT 'K' SPL |
PASHEAT 'C' SUPER |
PASHEAT 'C' SPL |
|
Base Component |
BTA |
Cal-
Diaspore |
Calcined Clay |
BTA & Cal. Diaspore |
BTA |
BTA |
Cal-Diaspore |
Cal-Clay |
Cal-Clay |
|
Physical Properties |
|
Recommended Service Temp
oC (max) |
1750 |
1600 |
1500 |
1700 |
1700 |
1750 |
1600 |
1500 |
1500 |
|
Refractoriness oC
(min)/Orton (min) |
1820
37 |
1683
31 |
1665
30 |
1800
36 |
1804 |
1820 |
1683
31 |
1665
30 |
1665
30 |
|
Dry Density (gm/cc) min |
2.75 |
2.2 |
2.1 |
2.6 |
2750 |
2850 |
2.1 |
2.25 |
2.12 |
|
Linear Change % in oC/3
Hrs (max) |
± 1.0
1500 |
±
1.5
1550 |
± 1.0
1500 |
± 1.0
1550 |
± 1.0
1550 |
± 0.70
1550 |
± 1.50
1550 |
± 0.90
1500 |
±1.00
1500 |
|
CCS kg/cm2 (min)
after drying at 110oC |
600 |
350 |
350 |
550 |
650 |
880 |
450 |
560 |
410 |
Thermal Conductivity
(Kcal/m/hr/oC)
at 400oHF
at 600oHF
at 800oHF |
1.12
1.20
1.28 |
0.82
0.84
0.86 |
0.75
0.78
0.82 |
1.06
1.10
1.16 |
1.13
1.18
1.24 |
1.17
1.22
1.28 |
0.82
0.85
0.88 |
0.80
0.83
0.86 |
0.78
0.81
0.84 |
|
Reversable Thermal Expansion
at 1000oC (%) |
0.78 |
0.58 |
0.55 |
0.76 |
0.79 |
0.80 |
0.80 |
0.55 |
0.55 |
|
Maximum grain Size (mm) |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
|
Chemical Analysis |
|
Al2O3
(% min) |
90.0 |
60.0 |
50.0 |
80.0 |
88.0 |
90.0 |
60.0 |
50.0 |
50.0 |
|
Fe2O3
(% min) |
0.8 |
1.0 |
1.3 |
1.5 |
0.8 |
0.80 |
1.0 |
1.7 |
1.3 |
