Black Aluminum Oxide is characterized by suitable hardness, good toughness and high sharpness, excellent self-sharpening. The articles polished by it obtain higher luster. It is widely used in cooking tool, electric coating, metal surface treatment, and glass products industries. Now it is mostly widely used in polishing mid-hardness materials, such as stainless steel cooking tools, lights, motorcycle parts and car parts.

Advantages
1. The machine and technique are from Japan Nanko Abrasive Co., Ltd., which assure excellent quality.
2. The test equipment and method are from Japan Nanko Abrasive Co., Ltd., which assure the quality stability.
3. The factory own two bauxite minerals, which assure the stability of raw material.
4. Narrow particle range, no coarse particle, will not scrape the work pieces.
5. Good particle shape, good sharpness and excellent grinding effect.
6. High cleanness, no impurity and dust.
7. Good toughness, longer life.
8. Japan NANKO Brand, supervised by Japan Nanko Abrasives Co., Ltd.

Available Grits
F24~F400

Chemical Analysis

	Al2O3	SiO2	Fe2O3	TiO2
F70	90.11	2.27	4.35	2.22
F100	88.93	2.70	5.28	2.72
F120	88.19	2.82	5.40	2.98
F150	87.89	2.96	5.36	3.48
F180	86.47	3.33	5.58	4.02

Physical Analysis

Crystal	True Density g/cm3	Bulk Density g/cm3	Hardness Kg/mm2	Melting Point	Max Usable Temperature
α- Al2O3	≥3.50	1.40~1.85	2000~2200	2000℃	1800℃

Packing
25kg/bag, one inner plastic bag, two poly-woven bags or one coated poly-woven bag. Paper bag or carton pakcing is available. Wooden pallet or jumbo bag is also available.