Brand name Item		Corundum castable	Mullite castable	Bit of sion high castable	Phosphate castable	High alumina castable
		XAJ-95	XMSJ-72	XPLJ-60	XLL-70	XLL-85
Refractoriness ≥℃		1790	1780	1750	1770	1750
Bulk density ≥g/cm3		3.1	2.5	2.6	2.4	2.9
Cold crushing strength≥MPa	110℃*24h	80	35	25	45	80
	1200℃*3h	80	75	40	65	70
	1500℃*3h	100	85	65	80	100
Bending strength≥MPa	110℃*3h	10	8	5	4.5	9
	1100℃*3h	10	8	5	8	9
	1500℃*3h	12	9	7	9	10
Linear change after heating 1450℃*2h≤%		-0.2	-0.4	+0.1	-0.5	-0.2
Themal conductivity≤W/m.k		1.8	1.3	1.1	1.2	1.5
Safe service temperature		1600	1500	1350	1450	1500
Remarks		Carefully chosen source material,high intensity and convenient for construction,used in the important part of furmaces and kilns.	Corrosion- resistant,high refractoriness under load,suitable for abrasion- resistant parts.	Little thermal expansion,and stable size,suitable for the top part of combustor and furnace wall and throat.	Convenient for construction,not strict for firing,hotly hardened casting material,used the abrasion- resistant part of combustor and material outlet under 1450℃	Good abrasion resistant ability,convenient for construction,function can be adjusted according to user srequire-ment.

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