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[
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Z]
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| Typical Data |
|
SPECIAL GRADES |
| Properties |
|
C-22 Z |
BNZ-24 |
BNZ-25 |
BNZ-26
HS |
Temperature Use Limit
(Normal oxidizing atmosphere) |
°F
°C |
2300
1260 |
2400
1316 |
2500
1371 |
2600
1427 |
Density, Avg.
ASTM C 134 |
lb/ft³
kg/m³
lb/BEq
kg/str. |
46
737
2.7
1.2 |
37
593
2.2
1.0 |
45
721
2.6
1.2 |
57
913
3.3
1.5 |
Modulus of Rupture
ASTM C 133 |
lb/in³
MPa
kg/cm² |
210
1.4
14.8 |
120
0.8
8.5 |
150
1.0
10.6 |
360
2.5
25.4 |
Cold Crushing of Strength
ASTM C 133 |
lb/in²
MPa
kg/cm² |
320
2.2
22.5 |
130
0.9
9.2 |
260
1.8
18.3 |
580
4.0
40.8 |
| Permanent Linear
Change |
% |
|
|
|
|
| ASTM
C 210 |
|
|
|
|
|
| 24
hrs at soaking temp: °F (°C) |
|
|
|
|
|
| 2250
(1232) |
|
0.0 |
- |
- |
- |
| 2350
(1290) |
|
- |
-0.4 |
- |
- |
| 2450
(1343) |
|
- |
- |
-0.4 |
- |
| 2550
(1399) |
|
- |
- |
- |
-0.7 |
| 2750
(1510) |
|
- |
- |
- |
- |
| 2800
(1538) |
|
- |
- |
- |
- |
| 2950
(1621) |
|
- |
- |
- |
- |
|
3150 (1732) |
|
- |
- |
- |
- |
| Reversible Linear
Thermal Expansion |
% |
|
|
|
|
|
at 2000°F (1093°C) |
|
0.5 |
0.6 |
0.6 |
0.6 |
| Hot Load Strength |
% |
|
|
|
|
| ASTM
C 16 |
deformation |
|
|
|
|
| 10
psi load for 11/2 hours: °F (°C) |
|
|
|
|
|
| 2000
(1093) |
|
0.1 |
0 |
- |
- |
| 2200
(1204) |
|
- |
- |
0.3 |
0.1 |
|
2400 (1316) |
|
- |
- |
- |
- |
| Thermal Conductivity |
Btu-in/ft²,
hr, °F |
|
|
|
|
| ASTM
C 182 |
(W/mk) |
|
|
|
|
| Mean
temperature, °F (°C) |
|
|
|
|
|
|
500 |
|
1.5 |
0.9 |
1.8 |
1.9 |
|
(260) |
|
0.22 |
0.13 |
0.26 |
0.27 |
|
1000 |
|
1.8 |
1.1 |
2.1 |
2.2 |
|
(538) |
|
0.26 |
0.16 |
0.30 |
0.32 |
|
1500 |
|
2.2 |
1.4 |
2.5 |
2.5 |
|
(816) |
|
0.32 |
0.20 |
0.36 |
0.36 |
|
2000 |
|
2.5 |
1.6 |
2.8 |
2.8 |
|
(1093) |
|
0.36 |
0.23 |
0.40 |
0.40 |
To convert
Btu-in/ft², hr,
°F to Kcal-m²,
hr, °C,
multiply by 0.124. |
|
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| Chemical Analysis |
|
|
|
|
|
|
Alumina - Al2O3 |
|
35 |
40.0 |
34.0 |
44.7 |
|
Silica - SiO2 |
|
60.1 |
47.2 |
63.0 |
49.9 |
|
Ferric Oxide - Fe2O3 |
|
1.1 |
0.5 |
0.7 |
0.6 |
|
Titanium Oxide - Ti2O2 |
|
1.3 |
1.5 |
1.4 |
1.6 |
|
Calcium Oxide - CaO |
|
2.1 |
10.3 |
0.3 |
0.6 |
|
Magnesium Oxide - MgO |
|
0.0 |
0.2 |
0.1 |
0.1 |
|
Alkalies, as Na2O
& K2O |
|
0.4 |
0.3 |
0.5 |
2.5 |
| *ASTM C
113 |
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