Universal refractory for list of products high alumina brick index

Brand name Item		LZ-75	LZ-65	LZ-55	LZ-48
Al2O3≥%		75	65	55	48
Refractoriness > ℃		1790	1790	1770	1750
Refractoriness under load 0.2MPa≥℃		1520	1500	1470	1420
Linear change after heating	1500℃*3h	0.1-0.4	0.1-0.4	0.1-0.4
	1450℃*3h				0.1-0.4
Apparent porosity≤%		23	23	22	22
Cold crushing strength≥MPa		54	50	45	40

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