unshaped fire brick

Model:	-
Brand:	rongsheng
Origin:	Made In China
Category:	Metallurgy , Mining & Energy / Metallurgy & Mining / Non-metallic Mineral Products
Label:	unshaped fire brick , fire brick
Price:	US $1.12 / pc
Min. Order:	1000 pc

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Product Description

High alumina brick used for BF,Mainly composed of special alumina bauxite chamotte (Al2O3≥48%)as starting materials,the brick are processed by molding under high pressure and sintering under high temperature,available for the lining of EAF steelmaking,glass tank,cement rotary kiln.

Physical and chemical index:

Item		Index
Item		LZ-48	LZ-55	LZ-65	LZ-75	LZ-80	LZ-85
AL2O3 % (≥)		48	55	65	75	80	85
Refractoriness °C (≥)		1750	1770	1790	1790	1820	1850
Refractoriness under load, 0.2MPa, °C (≥)		1420	1450	1500	1530	1550	1580
Permanent linear Change %	1500°C,2h		0.1-0.4
Permanent linear Change %	1450°C,2h	0.1-0.4
Apparent porosity % (≤)		22	22	23	23	22	23
Cold crushing strength Mpa (≥)		40	45	50	60	65	70