Brown corundum

Brown corundum, also known as corundum, is a brown artificial corundum made by melting and reducing three kinds of raw materials such as alumina, carbon material and iron filings in an electric arc furnace.

The main chemical composition of brown corundum is Al₂O₃, its content is 95.00% -97.00%, and it also contains a small amount of Fe, Si, Ti and so on.

Production Process

Raw material sorting → electrolytic smelting → crushing → ferromagnetic separation → screening → physical and chemical inspection → finished product packaging → inventory

Characteristics of brown alumina

Brown corundum is the most basic abrasive, because of its good grinding performance, wide range of application, and low price, it is widely used.

Application

1. Sand blasting .
2. Free grinding.
3. Resin abrasive.
4. Coated with abrasive.
5. Hydraulic cutting abrasive.
6. Refractory materials.

Features

Brown corundum has the advantages of high temperature resistance, corrosion resistance, high hardness, high strength, wear resistance, good crystallinity, and low expansion coefficient.

name	specification	main indicators			density g / cm3	Application	Exterior
		AL2O3	Fe2O3	SiO2
Brown alumina	First level	≥95	≤0.3	≤1.5	3.85	Refractory	Brown red particles
	Next level	≥90	≤1.3	≤1.5	3.85	Grinding, polishing	Brown particles
	Secondary	≥85	≤1.8	≤1.5	3.8	Grinding, polishing, sandblasting	Brown gray particles
	Lower secondary	≥80	≤2.3	≤1.5	3.75	Polishing	Gray particles
	Third level	≥70	≤4.3	≤1.5	3.5	Floor	Gray particles

Brown Corundum Display Video