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AP Green Products |
| TYPICAL AND AVERAGE DATA OF ALUMINA GUNNING MATERIALS |
Sl.No |
Properties |
Tata |
Tata |
Tata |
Tata |
Tata |
- |
- |
Gopelit |
Gopelit |
Gopelit |
Gopelit |
Gopelit |
- |
- |
Wks/mf |
K/m |
K/mf |
Wks/f |
Wks/m |
1 |
Chemical analysis (%) |
- |
|
-- |
- |
- |
- |
Al2O3 min |
45 |
40 |
40 |
40 |
45 |
- |
Fe2O3 max |
1.5 |
1.5 |
|
1.5 |
1.5 |
2 |
Physical properties |
-- |
-- |
- |
- |
- |
(a) |
Grading in mm |
(0-3) |
(0-3) |
(0-3) |
(0-3) |
(0-6) |
(b) |
Method of installation |
Gunning |
Gunning |
Gunning |
Gunning |
Gunning |
(c) |
Setting |
Hyrraulic |
Hyrraulic |
Hyrraulic |
Hyrraulic |
Hyrraulic |
(d) |
Service Temperature Max. |
1450°C |
1350°C |
1250°C |
1400°C |
1500°C |
(e) |
Proprties on drying at |
- |
- |
- |
- |
1100ºC /24 hrs. |
- |
- |
- |
- |
- |
B.D.(gm/cc.)* |
2 |
1.9 |
1.9 |
1.9 |
2 |
- |
CCS (kgs/cm².)* |
250 |
200 |
150 |
100 |
200 |
(f) |
Area of Application |
Coke oven |
Coke oven |
Coke oven |
For heating |
For closing |
- |
- |
(Wall,head |
(Head refrigerator |
(Head ascension |
the fine cracks |
the bigger |
- |
- |
roof and |
chamber |
pipe ,sole |
in wall head |
holes in walls |
- |
- |
ascension pipe) |
ascension |
flue) low |
roof and |
head,roof and |
- |
- |
chamber boilers |
pipe frame |
temp, air |
ascension |
ascension pipe |
- |
- |
air heaters |
joint sole |
heaters |
pipe of |
- |
- |
- |
fired heaters |
flue) |
B.F.Stoves |
coke oven |
- |
| Note : (*) CCS & B.D. are only indicative values and do not form part of specification |
| Grading - 95 % min will pas through maximum grain size indicated |
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| TYPICAL AND AVERAGE DATA OF BASIC SPRAYING MIX FOR TUNDISH METTALURGY |
Brand Name |
Mgo |
SiO2 |
Fe2O3 |
Setting |
Grading |
Sintering |
Appln. |
PLC (%) at |
B.D. gm/cc |
B.D. gm/cc |
Application Area |
- |
% |
% |
% |
- |
mm |
Temp+R[44]CC |
Temp°C |
1525° C/3hrs. |
after drying |
after firing at |
- |
- |
Min |
Max |
Max |
- |
- |
Min |
Max |
Max |
at 110°C Max |
at 1525°C/hrs. |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Max |
- |
Basic spraying Mixes : |
* Tata Lite T/87-50 |
44 |
43 |
10 |
Chemical |
0-0.5 |
750 |
1600 |
-5 |
1.85 |
1.9 |
For spraying of bottom and wells of tundish |
** Tata Lite T/87-60 |
56 |
33 |
7.5 |
Chemical |
0-0.5 |
750 |
1600 |
-4 |
1.85 |
1.9 |
wear lining in steel industry. |
** Tata Lite T/87-70 |
66 |
25 |
5.5 |
Chemical |
0-0.5 |
750 |
1600 |
-3 |
1.8 |
1.85 |
- |
** Tata Lite T/87-75 |
75 |
18 |
5 |
Chemical |
0-0.5 |
750 |
160 |
-4 |
1.85 |
1.9 |
- |
** Tata Lite T/87-80 |
78 |
14 |
5 |
Chemical |
0-0.5 |
750 |
1650 |
-5 |
1.85 |
1.9 |
- |
** Tata Lite T/87-90 |
85 |
7 |
3 |
Chemical |
0-0.5 |
750 |
1650 |
-5 |
1.85 |
1.85 |
- |
| ( * - For single heat only , ** For multiple heats ) One heat = time taken to tap out full ladle only |
| * 95 % min . Will pass through the maximum grain size indicated. |
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