Specifications

1. Professional manufacture
2. For precision casting
3. Competitive price
4. Stable quality

White fused alumina is the high grade refractory raw material, main crystal system is α- Al2O3, white color. It is characterized by high volume density, low apparent porosity, stable volume and thermal stability performance and so on, it is can be used for shell making material of heavy steel casting, especially the alloy casting, core sand, coating material and melt film precision casting, and it is also can be used as half precision blasting and precision blasting material for hardened steel, alloy steel and so on.

 

 

Purpose	Specification	Chemical and physical composition (%)
		Al2O3	Na2O	SiO2	Fe2O3	Apparent Porosity (%)	Volume Density (g/cm3)
Precision casting	50# –80#	≥99	≤0.5	≤0.2	≤0.15	≤8.0	≥3.45
	70# –140#	≥98.5	≤0.5	≤0.2	≤0.15	≤8.0	≥3.45
	0 – 200#	≥98.5	≤0.5	≤0.2	≤0.15	≤8.0	≥3.45
	0– 320#	≥98.5	≤0.5	≤0.2	≤0.15	≤8.0	≥3.45