KELEI MATERIAL Co.,Ltd.

Iron&Steel Industries
Aluminum Industries
Cement Industries
Garbage Disposal Industries
Power Generation Industries

Fireclay Bricks

Product Features:

Alumina-silicate products containing 35~48% of Al2O3 and in a certain shape, is called fireclay brick, widely used in blast furnace, thermal storage comber, soaking pit, annealing furnace, ladle, etc.

Technical Properties Data:

Item	N 42	N-1	N-2a	N-3a	N-4
Al₂O₃ %	42 min.
Apparent Porosity %	18max.	22max.	24max.	24max.	24max.
Bulk Density g/cm³	2.1min.
Cold Crushing Strength pa	39.2min.	30min.	25min.	20min.	20min.
Refractoriness Under Load T_0.6 ℃ at 0.196 MPa	1430min.	1400min.	1350min.	1320min.	1300min.
Permanent Linear Change % *at 1400 ℃ 2hr**	0~－0.3	+0.1~－0.4	+0.2~-0.5	+0.2~-0.5 (1350℃)	+0.2~-0.5 (1350℃)
Refractoriness ℃	1750min.	1750min.	1730min.	1710min.	1690min.

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