اکسید آلومینیوم قهوه ای در یک کوره قوس الکتریکی از مخلوط بوکسیت در دمای بالا ذوب می شود. رنگ قهوه ای، سختی بالا و چقرمگی عالی دارد. ابزار ساینده ساخته شده از اکسید آلومینیوم قهوه ای برای سنگ زنی فولاد کربن، فولاد آلیاژی معمولی، چدن چکش خوار و برنز سخت مناسب است. برای مخلوط پوشش اکسید آلومینیوم نسوز، ریختن مواد ریخته گری و غیره استفاده می شود.
درجه ساینده:
| SIZE | AL2O3 MIN | SIO2 حداکثر | TIO2 حداکثر | Fe2O3 حداکثر |
| 12#-80# | 94.5-97٪ | 0.6-0.8٪ | 1.5-3٪ | 0.12-0.2٪ |
| 100#-180# | 93.5٪ | 0.7-1٪ | 1.5-3.8٪ | 0.15-0.25٪ |
| 240#-280# | 92% | 0.85-1.1٪ | 1.5-3.8٪ | 0.18-0.35٪ |
کاربردهای معمولی:
- کاربردهای باند شده یا پوشش داده شده
- تکمیل یا آماده سازی سطح
- حذف پوشش یا رسوب
- جلا دادن
- سطوح ضد لغزش
مناسب برای این مواد:
- فولاد آهنی یا آلیاژی معمولی
- سرامیک
- پلاستیک
- سنگ
- شیشه ای
- چوب
- لاستیک
- مواد کامپوزیت
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