Pure fused corundum, synthetic mullite, chromium oxide etc as raw material, molding, high temperature sintering. Products with compact structure, high temperature (≥2200℃), good thermal shock resistance, acid and alkaline gases erosion, from H2, CO and other reducing gas impact. High purity products are widely used in the petrochemical industry, oil or gas, such as gasification, high temperature furnace gas furnace carbon black reactor ethylene, ammonia decomposition furnace, chemical industry, refractory and ceramic industries; chromium corundum products used in CWS petrochemical industry and petroleum coke gasifier backing, high temperature furnace lining oil or gasifier working lining, carbon black reactor lined chemical industry, refractory and other industries; mullite corundum products are widely used in the carbon black reactor, refractories, ceramic, high temperature furnace lining the electronics industry.

Project/ Index/ Name	DL-98	DL-95	DL-90	MDL-80	MDL-80
Al2O3%≥	98.5	95	90	80	85
Cr2O3%≥	/	/	/	/	8
Fe2O3%≤	0.2	0.2	0.5	0.5	0.2
SiO2%≤	0.3	3.0	9.0	18	0.2
R2O%≤	0.3	0.6	0.6	0.4	0.5
Bulk Density (g/cm³)≤	3.0	2.9	2.9	2.7	3.1
Cold Crushing Strength Mpa ≥	75	100	100	60	80
Refractories℃ ≥	1790	1790	1790	1790	1790
RUL℃ 0.2Mpa ≥	1700	1650	1650	1700	1700
Permanent Linear Change %	0.2	0.2	0.2	0.3	0.2
Water cooling thermal stability times 1100℃≥	6	10	10	20	15

Zibo SK Refractory Co., Ltd

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Main Products:Fire clay brick, high alumina brick, insulating brick, ceramic fiber, fire clay mortars, insulating mortars

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