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High alumina bricks have excellent mechanical strength, good resistance to thermal spalling, and are highly resistant to chemical attack by vilatile alkaies and some slag. Qunhui manufacture and design high alumina bricks to meet the requirements of a great variety of service conditions through quality control.
Main Properties：
|
Item |
Index |
||||
|
Code |
DL-48 |
DL-55 |
DL-65 |
DL-70 |
DL-75 |
|
Al2O3 min, % |
48 |
55 |
65 |
70 |
75 |
|
Refractoriness, min |
1790 |
1793 |
1760 |
1770 |
1780 |
|
Refractoriness under load (0.2MPa) , min |
1360 |
1380 |
1390 |
1400 |
1410 |
|
Linear change after reheating(1550, 2h) % |
0 ~ -0.6 |
0 ~ -0.55 |
0 ~ -0.3 |
0 ~ -0.3 |
0 ~ -0.3 |
|
Apparent porosity max, % |
22 |
21 |
20 |
20 |
19 |
|
Cold crushing strength Mpa, min |
40 |
45 |
50 |
55 |
60 |
Applications：
1.Nonferrous Metal Furnace
2.Rotary & Shaft Kiln
3.Various Incinerator
4.Permnanent Lining For EAF Ladle
5.Reheating Furnace
6.General Industrial Furnace etc.
