烧成镁砖采用重烧镁砂制成,是一种广泛应用于冶金、建材、化工等工业窑炉的耐火材料。
种类 | 镁砖 | ||||||||
HLMZ91 | HLMZ92 | HLMZ95A | HLMZ95B | HLMZ96 | HLMZ97A | HLMZ97B | HLMZ98A | HLMZ98B | |
MgO%≥ | 91 | 92 | 95 | 94.5 | 96 | 97 | 96.5 | 97.5 | 97.3 |
CaO%≤ | 3.0 | 2.5 | 2.0 | 2.0 | 1.8 | —— | —— | —— | —— |
SiO2%≤ | —— | —— | 2.0 | 2.5 | 2.5 | 1.2 | 1.6 | 1.0 | 1.1 |
常温耐压强度MPa≥ | 55 | 55 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
荷重软化点℃≥ | 1520 | 1540 | 1650 | 1650 | 1650 | 1700 | 1700 | 1700 | 1700 |
显气孔率%≤ | 18 | 18 | 17 | 18 | 18 | 16 | 17 | 16 | 16 |