Refractory balls are suitable for high and low temperature shift furnaces, reforming furnaces, hydroconverters, desulfurization tanks and methanation furnaces in chemical fertilizer plants. They can disperse gas and liquid, and support, cover and protect catalysts. Refractory balls can also be used in hot blast stoves and heating transformation equipment in the steel industry.

Item 项目		Refractory Ball for hot blast stove regenerator 热风炉蓄热室用耐火球
		high alumina refractory ball 高铝质耐火球	Modified high alumina refractory ball 改性高铝耐火球	high dense high alumina refractory ball 高铝高密度耐火球	high dense low creep high alumina refractory ball 低蠕变高铝高密度耐火球
Al2O3(%)	≥	55	65-75	70	70-80
Fe2O3(%)	≤	2	1.8	1.8	1.8
Apparent Porosity 显气孔率(%)	≤	26	25	24	20
Bulk Density 体积密度(g/cm3)	≥	2.35	2.35	2.6	2.75
Refractoriness 耐火度(℃)	≥	1750	1770	1790	1790
Cold Crushing Strength 常温耐压强度(Mpa)	≥	10	11	12	13
Refractoriness under Load 荷重软化开始温度(℃) (0.2Mpa)	≥	1420	1450	1480	1520