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| 物化性质 | 惰性瓷球 | ||||
| 材质类型 | 中铝瓷 | 高铝瓷 | 刚玉瓷 | ||
| Al2O3 % | 46～70 | 71～90 | ＞90 | ≥95 | |
| （Al2O3+SiO2 ）% | ≥90 | ||||
| Fe2O3 % | ≤1 | ||||
| 耐酸度/% | ≥90 | ||||
| 耐碱度/% | ≥85 | ||||
| 吸水率/% | ≤8 | ||||
| 耐急变温差/℃ | ≥300 | ||||
| 最高耐热温度/℃ | 1300 | 1400 | 1500 | ||
| 堆积密度/(kg/m3) | 1500～1600 | 1600～1800 | ≥1800 | ||
| 抗压强度KN/颗 | φ3mm | ≥0.30 | ≥0.35 | ≥0.40 | |
| φ5mm | 0.3-0.65 | ||||
| φ6mm | ≥0.65 | ≥0.70 | |||
| φ8mm | ≥1.00 | ≥1.20 | ≥1.20 | ||
| φ9mm | 0.90-1.20 | ||||
| φ10mm | ≥1.20 | ≥1.90 | |||
| φ13mm | ≥3.00 | ≥4.00 | |||
| φ15mm | 3.00-4.50 | 5.80-7.00 | |||
| φ16mm | ≥4.50 | ≥6.00 | ≥7.00 | ≥7.00 | |
| φ18mm | 4.50-6.00 | ||||
| φ19mm | 4.5-6.00 | ||||
| φ20mm | ≥6.00 | ||||
| φ25mm | ≥8.00 | ≥10.00 | ≥12.00 | ||
中铝惰性瓷球
