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Corundum mullite bricks

Al₂O₃(%)≥70～85; SiO₂(%)≤26～13; Fe₂O₃(%)≤1.2～0.5
Bulk Density(g/cm³)≥2.50～2.95; C.C.S (Mpa)≥70～80
0.2mpa Refractoriness under loadT0.6(℃)≥1580～1700

Application:

Corundum mullite bricks as Al-Si refractory bricks are widely used as linings in glass furnace, decomposing furnaces for petroleum, high temperature kiln and petrochemical industry.

　　Corundum mullite bricks as Al-Si refractories use high purity fused corundum, synthetic mullite and chromium oxide as raw materials, sintering at high temperature.

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Index	Corundum mullite bricks
Index	MS-70	MS-72	MS-75	GM-85
Al₂O₃ % ≥	70	72	75	85
SiO₂ % ≤	26	25	23	13
Fe₂O₃ % ≤	1.2	0.5	0.5	0.5
Bulk Density≥ g/cm³	2.50	2.65	2.69	2.95
A.P. % ≤	16	17	17	17
C.C.S (Mpa) ≥	70	80	80	80
Reheating Linear Change%	1500℃×3h±0.2	1400℃×2h+0.15～-0.5～-0.5	1500×3h±0.2
0.2mpa Refractoriness under loadT0.6 ≥ ℃	1580	1650	1680	1700

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