Casting Sand Brown Corundum

• CAS No.: 1344-28-1
• Formula: Al2O3
• Certification: MSDS ,SGS
• Environmental Protection: Yes
• Function: Heat Resistance, Investment Molds, Silica Sol Process
• Appearance: Powder
• Model NO.: casting silica sol process
• Transport Package: 25, 500 Kgs Woven Bag /PE Bag
• Specification: F, P, W, Refractory material
• Trademark: Lerona
• Origin: China
• Production Capacity: 200 Ton/Month

Product Description

 

Brown corundum, Brown aluminium oxide
Brown corundum, also known as diamond, is a brown-brown artificial corundum made from bauxite, carbon materials and iron scraps by melting and reducing in an electric arc furnace. The main chemical composition of brown corundum is AL2O3, its content is 95.00% - 97.00%, and contains a small amount of Fe, Si, Ti and so on. Brown corundum is the most basic abrasive, because of its good grinding performance, a wide range of applications, low price, is widely used.


Physical and chemical indexes of brown corundum used in precision casting:

purpose	Specifications	Chemical composition content (%)				Magnetic substance%
		Al2O3	Fe2O3	SiO2	TiO2
precision casting	F60-F80	≥95	≤0.3	≤1.5	≤3.0	≤0.05
	F70-F90	≥94				≤0.03
	F100-F120	≥93	≤0.3	≤1.5	≤3.5	≤0.02
	0-320#	≥93.5	≤0.3	≤1.5	≤3.5	≤0.02
	0-320#	≥97	≤0.5	≤0.8	≤1.0	≤0.02