High Strength Light-weight Castables

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PRODUCTS / Refractory Products for Industrial Furnaces /

High Strength Light-weight Castables

Brand: PN-LW

PN LW serial insulating castables feature high strength, low volume density and low thermal conductivity. They are especially developed for lining of industrial furnace and high performances have been achieved in over 50 installations worldwide.

Main Properties (1):

Brand		PN-LW0.6	PN-LW0.8	PN-LW0.8-D	PN-LW1.0	PN-LW1.0-A
Al₂O₃ (%);≥		25	25	25	30	30
Bulk density (g/cm³)	110℃×16h	0.6±0.1	0.8±0.1	0.8±0.1	0.8±0.1	1.0±0.1
Cold crushing strength (MPa); ≥	110℃×16h	-	1	-	2	-
Cold crushing strength (MPa); ≥	1000℃×3h	-	1(900℃×3h)	-	2	-
Reheat linear change (%)	110℃×16h	-	0~-0.2	0~-0.2	0~-0.2	0~-0.2
Reheat linear change (%)	1000℃×3h	-	0~-0.8(900℃×3h)	-	0~-0.8	0~-0.8
Thermal conductivity (700℃)(W/m.K); ≤		0.25	0.28	0.28	0.35	0.35
Normal service temp. (℃)		800	900	900	1000	1000
Max service temp. (℃)		1000	1000	1100	1100	1100
Application		Roof	Wall	Roof	Wall	Roof

Main Properties (2):

Brand		PN-LW1.2	PN-LW1.3	PN-LW1.5	PN-LW1.65	PN-LW1.8	PN-LW2.0
Al₂O₃ (%);≥		32	35	38	48	45	45
Bulk density (g/cm³)	110℃×16h	1.2±0.1	1.3±0.1	1.5±0.1	1.65±0.1	1.8±0.1	2.0±0.1
Cold crushing strength (MPa); ≥	110℃×16h	4	5	6	8	12	18
Cold crushing strength (MPa); ≥	1300℃×3h	4 (1200℃×3h)	5 (1200℃×3h)	10 (1250℃×3h)	12	15	22
Reheat linear change (%);≤	110℃×16h	0~-0.2	0~-0.2	0~-0.2	0~-0.2	0~-0.2	0~-0.2
Reheat linear change (%);≤	1300℃×3h	0~-0.8(1200℃×3h)	0~-0.8(1200℃×3h)	0~-0.8(1200℃×3h)	0~-0.8	0~-0.8	0~-0.8
Thermal conductivity (700℃)(W/m.K);≤		0.38	0.40	0.48	0.60	0.70	0.75
Normal service temp. (℃)		1200	1200	1250	1300	1300	1300
Max service temp. (℃)		1300	1300	1300	1350	1350	1350
Applications		Lining			Roof and regenerator chamber