What is brown corundum sand

In addition to the application of brown corundum sand in refractory materials, it can also be used in sandblasting, free grinding, resin abrasive tools, filter media, hydraulic cutting, etc.

Brown corundum sand is made by high-temperature smelting with bauxite as the base material. Its basic mineral is α-Al2O3. aluminium oxide Brown corundum sand has high hardness, high melting point, high thermal conductivity, stable volume at high temperature, not easy to crack, and resistant Good acidity and alkalinity.

It is suitable for the core surface sand of steel castings, coatings and shell making materials of investment casting. It can also be used as rough grinding and free abrasives for carbon steel, alloy steel, hard bronze and iron castings. The price of brown corundum is lower than that of white corundum of the same level, making it more cost-effective.

Brown corundum sand is often irregular prismatic brown-red or brown-black particles, with a bulk density of 1.65g/cm and a hardness of 9.1. hsl abrasive The main components of brown corundum are (%): Al2O3: 92-98.8%, SiO2: 1.3-%.

Product specifications: 16# 20# 24# 30# 36# 46# 60# 80#100# 120# 150# 180# 200# 240# 260# 280# 320#400# 500#600# 800#.

Product packaging: 25KG/woven belt. Fengtai Corundum Refractory Company can also produce according to customer requirements.