Fused Spinel(Magnesia Alumina Spinel)

Magnesia Alumina Spinel is melted by high-purity caustic calcined magnesia and superior alumina through arc furnace. It has the characteristic of high density, the good performance of heat and shock resistance as well as the strong corrosion resistance. It was mainly used to produce high level castables, sliding gate and ladle bricks, ect.

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Application

1 Magnesium-aluminium spinel bricks,ladle lining,refractory lining
2 Refractory castables, hook refractory material, and other refractories;

Chemical composite and physical properties

Item	Guarantee Value FM75	Guarantee Value FM80
Al2O3	72 ~ 76%	78 ~ 81%
SiO2	22 ~ 26%	18 ~ 21%
Fe2O3	≤0.20%	≤0.10%
Na2O+K2O	≤0.40%	≤0.35%
Mullite phase (%)	≥ 95	≥ 95
Size	0-1, 1-3, 3-5, 5-8mm, 200mesh, 325mesh （The particle size can be customized）

Packing

1000kg or 1250kg bulk bags
Bulk bag on pallets
25kg woven bag in bulk bags
25kg paper bag on pallets

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