High alumina brick for hot blast stove
High alumina brick for hot blast stove - high alumina brick professional manufacturer and supplier in China.
Description
High alumina brick for hot blast stove
Item: |
RL65 |
RL55 |
RL48 |
AL2O3(%) ≥ |
65 |
55 |
48 |
Refractoriness (oC) ≥ |
1780 |
1760 |
1740 |
0.2Mpa Refractoriness under load (oC)≥ |
1500 |
1470 |
1420 |
Permanent linear change (1500oC×2h)(%) |
-0.4~0.1 |
-0.4~0.1 |
-0.4~0.1 |
Apparent porosity (%) ≤ |
22 |
||
Cold crushing strength (MPa) |
50 |
45 |
40 |
Thermal shock resistance (times) (1100 water cooling) |
≥6 |