nz

全资子公司：上海科磊物资有限公司于2000年12月18日成立

Shanghai KeLei Material Co., Ltd.  www.goodsis.com

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Fireclay Brick

Technical Specifications

Brand	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 Mpa	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.

High alumina bricks

Technical Specifications

Brand	L-48	L-55	L-65	L-75	L-80
Al₂O₃ %	48min.	55min.	65min.	75min.	80min
Apparent Porosity %	22max.	22max.	23min.	23min	21min.
Bulk Density g/cm³
Cold Crushing Strength MPa	39.2max.	39.4max.	49.0min.	53.9min.	78.5min.
Refractoriness Under Load T_0.6 ℃ at 0.196 MPa	1420max	1470max.	1500max.	1520max.	1550min.
Permanent Linear Change % at 1500 ℃ * 2 hr	+0.1~-0.4 (1450 ℃)	+0.1~-0.4	+0.1~-0.4	+0.1~-0.4	0~-0.3 (1550℃)
Refractoriness, SK ℃	34min. 1750min.	35min. 1790min.	36min. 1790min.	36min. 1790min.	36min. 1790min.