Sell fire clay bricks

1.fire clay bricks for blast furnances
2. high-tempreture resistace
3. good eroding resistance
4.used in cement factory

Chinese Refractory raw material resources are abundant, which are suitable for the production of various grades of insulating firebrick. Limiting temperature of use range from 900º C to 1650º C. Each grade of insulating firebrick is formulated to meet specific thermal and physical requirements. Top grade insulating firebrick are made from high-purity refractory clays, with graduated additions of alumina for the higher temperature products, and a carefully graded organic filler, which burns out during manufacture to give a controlled, uniform lacuna structure. Each brick machined to precise size on all six faces. The maximum continue use temperature depends on application. If you have any question, please feel free to contact us.

A: high alumina brick

    

Item	LZ-75		LZ-65	LZ-55	LZ-48
Al2O3,% min	75		65	55	48
Refractoriness min	1790		1790	1770	1750
RUL min	1520		1500	1470	1420
P.L.C.1500ºC        X 2h	0.1-0.4 1500ºC X 2h				0-0.2
A.P.max	23		23	22	22
CCS; max	53.9	49.0		44.1	39.2

B: clay brick

Target	Grades and numerical
	(NZ)-42	(NZ)-40	(NZ)-38
Al2O3 content not below	42	40	38
Refractoriness °C not below	1750	1730	1690
2Kg/cm2 load softening temperature °C start not less than	1400	1350	1300
Refiring linear contractive % °C 1450 2 hours is not more than	+0.1
Refiring linear contractive % 1350 °C 2 hours is not more than		0.3	-0.5
Show porosity %	22	24	26
Kgfcm2 not less than the normal temperature compression strength	250	200	150