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Fireclay mortar for coke furnace
Complying with the national standard of GB/T14982-94, we produce 5 types of
fireclay ( thereinto NN-458 is made of phosphate and clay), those can be
used to bind clay bricks.
|
MARK |
NN-30 |
NN-38 |
NN-42 |
NN-45A |
NN-45B |
|
Refractoriness
℃≥ |
1630 |
1690 |
1710 |
1730 |
1730 |
|
(Al2O3)/%≥ |
30 |
38 |
42 |
45 |
45 |
|
Binding bend Strength at coldMpa |
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 |
|
0.2MPa refractoriness under load
℃,T2.0≥ |
- |
1200 |
|
Line change
rate % |
1200℃,3h
after burning |
+1－-3 |
- |
|
1300℃,3h
after burning |
- |
+1－-5 |
|
Setting time, min |
1-3 |
|
Granularity % |
-1.0mm |
100 |
|
+0.5mm≤ |
2 |
|
-0.074mm≥ |
50 |
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Kingstone Group All right reserved