炼钢电炉顶用高铝砖
DL-80、DL-75、BDL-80、BDL-75
|
炼钢电炉顶用高铝砖 |
||||
|
项目 |
DL-80 |
DL-75 |
BDL-80 |
BDL-75 |
|
Al2O3(%) min |
80 |
75 |
80 |
75 |
|
1530 |
1520 |
1530 |
1520 |
|
显气孔率(%) max |
19(21) |
19(21) |
18(20) |
18(20) |
|
常温耐压强度(MPa)min |
75 |
65 |
60 |
55 |
|
重烧线变化1500℃x2h (%) max |
*** |
*** |
||
|
抗热震性(1100℃ 水冷)，次 |
*** |
*** |
8 |
8 |
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