Clay Mortar
MARK |
NN-30 |
NN-38 |
NN-42 |
NN-45A |
NN-45B |
|
Refractoriness ℃ ≥ |
1630 |
1690 |
1710 |
1730 |
1730 |
|
Al 2 O 3, % ≥ |
30 |
38 |
42 |
45 |
45 |
|
Binding bend Strength at cold MPA |
110 ℃ after drying ≥ |
1.0 |
1.0 |
1.0 |
1.0 |
2.0 |
1200 ℃ ,3h after burning ≥ |
3.0 |
3.0 |
3.0 |
3.0 |
6.0 |
|
refractoriness under load 0.2MPA, ℃ ,T 2.0 ≥ |
- |
1200 |
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Line change rate % |
1200 ℃ ,3h after burning |
+ 1 ~ -3 |
- |
|||
1300 ℃ ,3h after burning |
- |
+ 1 ~ -5 |
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Setting time, min |
1 - 3 |
|||||
Granularity, % |
- 1.0mm |
100 |
||||
+ 0.5mm ≤ |
2 |
|||||
- 0.074mm ≥ |
50 |
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