| Item |
|
Low-porosity fireclay brick
XW-N53 |
Grade I mullite brick |
|
Grade I mullite-SiC brick |
Grade II mullite-SiC brick |
| Al2O3 ≥% |
40 |
45 |
55 |
55 |
40 |
35 |
| SiC ≥% |
|
|
|
|
35 |
45 |
| Fe2O3 ≤% |
1.8 |
1.3 |
0.9 |
0.8 |
0.8 |
1.0 |
| Bulk density ≥g/cm3 |
2.23 |
2.35 |
2.45 |
2.48 |
2.52 |
2.55 |
| Apparent porosity≤% |
22 |
15 |
16 |
15 |
20 |
20 |
| Cold crushing strength ≥MPa |
45 |
80 |
80 |
90 |
90 |
90 |
| Cold modulus of rupture ≥MPa |
|
|
|
|
20 |
|
| 0.2MPa refractoriness under load≥℃ |
1450 |
1500 |
1500 |
1500 |
1600 |
1600 |
| Liner change after heating(1350℃*2h) |
+0.1~-0.5 |
+0.1~-0.5 |
+0.1~-0.5 |
+0.1~-0.5 |
+0.1~-0.5 |
+0.1~-0.5 |
| Refractoriness |
1690 |
1770 |
1790 |
1790 |
1790 |
1790 |
| Thermal shock-resistance ≤次1100℃ water |
|
15 |
35 |
25 |
45 |
60 |
| Application section |
Body inner |
|
Flue and cooling room |
One-times syclone scrubber,chute |
Refractory Brick for Dry Type Quenching Coke