Sintered Alumina Magnesia Spinel

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"Jun" brand sintered alumina-magnesia spinel is based on industrial alumina and dead burnt magnesite, through the multi-stage homogenization process，sintered in ultra-high temperature shaft kiln, with large volume density, high spinel phase content, good crystal development, uniform structure, stable performance. Also alumina-magnesia spinel has corrosion resistance, peeling resistance, good slag resistance, good thermal shock stability, high temperature resistance and other characteristics.
High quality sintered alumina-magnesia spinel provide guarantee for the production ofshaped and unshaped high -performance refractory materials. lt is an ideal raw material for fire-resistant products such as magnesia-alumina spinel brick for cement rotary kiln, ladle brick, and refractory carstables for ladles. On steel metallurgical, cement rotary kiln and glass industrial kiln.According to alumina content, sintered magnesia-alumina spinel is classified into SAM-50SAM-66,SAM-78 and SAM-90 varieties.

Physical Properties and Chemical Composition

Item/Component	Al₂O₃	MgO	CaO	SiO₂	Fe₂O₂	Na₂O	Bulk density(g/c㎡)
SAM-50	48~52	46~50	≤0.60	≤0.45	≤0.35	≤0.25	≥3.2
SAM-66	64~68	32~36	≤0.50	≤0.35	≤0.30	≤0.30	≥3.2
SAM-78	76~79	20~24	≤0.40	≤0.30	≤0.25	≤0.35	≥3.2
SAM-90	89~92	8~11	≤0.30	≤0.25	≤0.20	≤0.35	≥3.3
Particle size	0~0.2~0.5~1~2~3~5~8mm,100 mesh、200 mesh、325 mesh,5μm,3μm.
Inspection standard	GB5069-2001
Packing	Inner plastic and external weaving 25KG/bag(can be customized according to customer requirements)