Magnesium Aluminate Spinel Refractory Castable
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Technical Indicators of Magnesium Aluminate Spinel Refractory Castable
| Product number | |||||
| Properties | |||||
| Chemical composition (%) | Al2O3 | ≥93 | ≥88 | ≥88 | ≥70 |
| SiO2 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | |
| Fe2O3 | 2~3 | 6~8 | 6~8 | ≥20 | |
| Refractoriness (℃) | 1800 | 1800 | 1800 | 1700 | |
| Bulk density (g/cm3) (110℃*24h ) | ≥3.0 | ≥3.1 | ≥3.1 | 2.85 | |
| Linear expansion rate (%) (1500℃*3h) | ±0.5 | 0.1~1.0 | 0.1~1.0 | 0.1~0.6 | |
| Fracture resistance (Mpa) | 110℃ *24h | ≥50/ ≥7 | ≥60/ ≥7 | ≥70/ ≥8 | ≥50/ ≥7 |
| 1100℃ *3h | ≥60/ ≥8 | ≥70/ ≥8 | ≥90/ ≥10 | ≥60/ ≥8 | |
| 1500℃ *3h | ≥90/ ≥15 | ≥120/ ≥15 | ≥120/ ≥15 | ≥90/ ≥16 | |
| Maximum grain size (mm) | 5~6 | 5~8 | 8~12 | 5~6 | |
| Water consumption (%) (weight ratio) | 6~7 | 4.5~5.5 | 4.5~5.5 | 5~7 | |
| Applications | thermal spray powder, argon blower, oxygen lance, etc. | RH vacuum refining, argon blower, oxygen lance, etc | RH vacuum refining, CAS-OB dip cover, spray gun, etc. | Three channel coal burner of cement kiln | |
| Inspection standard | YB/T5202-2003 | ||||
| Packaging | 25kg plastic woven bag with inner film | ||||
Related Names
Refractory Castable | Unshaped Refractory Material
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