Fireclay bricks for hot blast stoves are clay bricks made from refractory clay and used to build blast furnace hot blast stoves. Fireclay bricks for hot blast stoves are used for hot blast stoves, regenerators and partition walls. Fireclay bricks for hot blast stoves require good thermal shock resistance, high load softening temperature and low creep.

Item 项目		Fireclay bricks for Hot Blast Stove 热风炉用粘土砖
		RN-42	RN-40	RN-36
Al2O3(%)	≥	42	40	36
Apparent Porosity 显气孔率(%)	≤	24	24	26
Refractoriness 耐火度(℃)	≥	1750	1730	1690
Cold Crushing Strength 常温耐压强度(Mpa)	≥	29.4	24.5	19.6
Refractoriness under Load 荷重软化开始温度(℃) (0.2Mpa)	≥	1400	1350	1300
Reheating Linear Change Rate 重烧线变化(%)	1400℃×2h	0~0.4	____	____
	1350℃×2h	____	0~0.3	0~0.5