Black Fused Alumina Powder

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Black fused alumina

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Description

The black corundum abrasives produced by our company have the advantages of moderate hardness, high toughness, high temperature resistance, stable thermal performance, high cleanliness, uniform particle size, strong grinding force, good wear resistance, high working efficiency and so on.

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Black Fused Alumina Powder

Product Induction：

Our Black Fused Alumina Powder is a dark gray crystal body made α-Al2O3 and ferropicotite as main ore in the electric arc furnace by smelting the bauxite .Its character is that the content of Al2O3 is low, and there is a certain amount of Fe2O3, there is a small amount of SiO2 and TiO2. It also has the characteristics of moderate hardness, high toughness, high temperature resistance and stable thermal performance. It is mostly used for free grinding, such as the grinding and polishing of stainless steel, metal products, optical glass, tableware and cookware, bamboo and wood products, and is also widely used in consolidated abrasives and coated abrasives.

Specification：

F180 F220 F240 F280 F320

Advantages：

Application：

Widely used in stainless steel sandblasting, resin abrasives, coated abrasives, optical glass, bamboo and wood products and other fields.

Technical Data：

The Physical Data

Item	Color	Color System	Mohs Hardness	Melting Temperature(℃)	>Refractory Temperature(℃)	True Density( g/cm³)	Expansion coefficient （0-1600℃）
Specification	Black	Alpha-alumina trigonal system	≥9.0	2050℃	1850℃	≥3.50	7-9