White Corundum Castable

White corundum castable is a high-quality high-temperature refractory material, with high-purity alumina powder as the main raw material, and the impurity content is extremely low.

During the production process, a small amount of auxiliary materials such as flux and binder may be added to improve the performance and construction performance of the castable.

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Product Feature

(1) Good high temperature stability

(2) Good structural density

(3) Strong wear resistance

(4) Good slag resistance

(5) High shock resistance

(6) Good corrosion resistance

Product Application

(1) High temperature kiln

(2) Petroleum industry

(3) Fertilizer industry kiln

(4) Furnace resistant to high temperature

Product Property

Brand Performance		ZJ-1	ZJ-2	ZJ-18A	ZJ-18HS	ZJ-18H
Chemical composition%	Al2O3	≥98	≥95	≥95	≥95	≥95
Chemical composition%	SiO2	≤0.2	≤0.5	≤0.2	≤0.4	≤0.4
Maximum use degree℃		1850	1800	1800	1800	1800
Volume density after baking at 110℃ g/cm3		≥3.1	≥3.0	≥2.9	≥3.0	≥3.1
Line change after firing at 1500℃×3h%		-0.2—0.6	-0.2—0.6	-0.2—07	0.1 — -0.3（1100℃）	±0.5
Compressive/flexural strength MPa	110℃×24h	≥20/≥4	≥60/≥7	≥50/≥4	≥60≥8	≥70/≥7
	1100℃×3h	≥50/≥6	≥70/≥8	......	≥70/≥9	≥80/≥10
	1500℃×3h	≥60/≥10	≥100/≥15	≥100/≥15	≥120/≥10	≥150/≥15
Maximum particle size mm		5-6	5-6	5-6	3	5-6
Construction water consumption% (weight ratio)		5-6.5	5-6.5	5-6	5-6	5-6
Inspection standard brick		YB/T5202-2003