鋼包透氣磚
| 指標/牌號 | 剛玉尖晶石質 Corundum spinel | 鋁尖晶石質 Aluminospinel | 澆注成型鉻/剛玉尖晶石質 Electron body cast chrome/corundum spinel | 機壓成型鋁鎂碳質 Pressed aluminum magnesium carbon |
|---|---|---|---|---|
| Al2O3(%) | ≥90 | ≥85 | ≥80 | 70-85 |
| MgO(%) | ≥4 | ≥4 | 4-10 | 5-20 |
| Cr2O3(%) | 2-4 | 2-4 | ||
| 體積密度(g/cm3) Bulk density | ≥3.10 | ≥3.10 | ≥3.15 | ≥3.05 |
| 顯氣孔率(%) Apparent porosity | ≤17 | ≤17 | ≤18 | ≤8 |
| 耐壓強度(MPa) Compressive strength | ≥60 | ≥80 | ≥90 | ≥50 |
| 線變化率(%)1450℃×3h Linear change rate | 0-0.5 | 0-0.5 | 1.2±0.2 |
相關標簽：
鋼包耐材
