Nhôm oxit nâu được nung chảy bằng điện trong lò hồ quang từ hỗn hợp bauxit ở nhiệt độ cao. Nó có màu nâu, độ cứng cao và độ dẻo dai tuyệt vời. Các dụng cụ mài mòn làm bằng nhôm oxit nâu thích hợp để mài thép cacbon, thép hợp kim thông thường, gang dẻo và đồng cứng. Nó được sử dụng cho hỗn hợp lót nhôm oxit chịu lửa, vật liệu đúc có thể đúc được, v.v.
Cấp độ mài mòn:
| KÍCH CỠ | AL2O3 TỐI THIỂU | SIO2 TỐI ĐA | TIO2 TỐI ĐA | Fe2O3 TỐI ĐA |
| 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% |
Ứng dụng tiêu biểu:
- ứng dụng liên kết hoặc tráng phủ
- hoàn thiện bề mặt hoặc chuẩn bị
- loại bỏ lớp phủ hoặc cặn
- đánh bóng
- bề mặt chống trượt
Phù hợp với các vật liệu sau:
- thép hợp kim đen hoặc thép thường
- đồ gốm
- nhựa
- cục đá
- thủy tinh
- gỗ
- cao su
- vật liệu tổng hợp
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