Fireproof and thermal insulation of ceramic fiber blanket for steel factory pipelines

Release Time: 2026-03-19

Is ceramic fiber blanket fireproof and heat-insulating for steel factory pipelines? The core performance of fireproof and thermal insulation of ceramic fiber blanket for steel plant pipelines, typical applications in steel plants, selection and construction points, while highlighting the product and service advantages of Rosewool Insulation Refractory Co.,Ltd., making it convenient for promotion and engineering implementation. For steel factories, ceramic fiber blankets are still the preferred solution for fire and insulation of pipelines. Rosewool Insulation Refractory Co.,Ltd. suggests selecting standard or zirconium containing products based on the specific working temperature of the pipeline, and giving priority to top manufacturers with mature processes and after-sales services.

In steel plants, ceramic fiber blanket (also known as aluminum silicate fiber blanket) is one of the core materials for fire and insulation of pipelines. In the process of steel smelting, a large amount of high-temperature gases and liquids are transported through pipelines. Ceramic fiber blankets are mainly used in the following areas:

1. Blast furnace hot air duct: capable of withstanding hot air temperatures of 300 ℃ -600 ℃ or even higher, preventing heat loss and protecting external steel structures.
2. Converter/electric furnace flue gas pipeline: To cope with instantaneous high temperature impact (up to 1000 ℃ or above), prevent pipeline deformation and fire spread.
3. Heating furnace gas pipeline: Ensure stable gas temperature and improve combustion efficiency.
4. Steel ladle roaster pipeline: provides a lightweight and efficient insulation layer.

Technical Parameters

Type		COM	ST	HP	HA	Zir-Alu	HZ
Classified Temp.		1100℃ (2012℉)	1260℃ (2300℉)	1260℃ (2300℉)	1360℃ (2480℉)	1400℃ (2550℉)	1430℃ (2606℉)
Working Temp.		<1000 ℃ (1832℉)	1050℃ (1922℉)	1100℃ (2012℉)	1200℃ (2192℉)	1200℃ (2192℉)	1350℃ (2462℉)
Color		white	white	white	white	white	white
Density(kg/m3)		96/128 (6/8 lb/ft3)	96/128 (6/8 lb/ft3)	96/128 (6/8 lb/ft3)	128/160 (8/10 lb/ft3)	128/160 (8/10 lb/ft3)	128/160 (8/10 lb/ft3)
Linear Shrinkage (％) (24 hrs,density 128 kg/m³)		-4 (1000℃/ 2012℉)	-3 (1000℃/1832℉)	-3 (1100℃/2012℉)	-3 (1250℃/2282℉)	-3 (1200℃/2192℉)	-3 (1350℃/2462℉)
Thermal conductivity(W/M.K) Density 128kg/m³( 8 lb/ft3)		0.09 (400℃/752℉) 0.16 (800℃/1472℉)	0.09( 400℃/752℉) 0.16 (800℃/1472℉)	0.09 (400℃/ 752℉) 0.16 (800℃/ 1472℉) 0.20 (1000℃/1832℉)	0.12 (600℃/ 1112℉) 0.20 (1000℃/1832℉)	0.132 (600℃/1112℉) 0.22 (1000℃/1832℉)	0.16 (600℃/ 1112℉) 0.20 (1000℃/1832℉)
Tensile Strength(Mpa) (Density 128kg/m³)		0.08-0.12	0.08-0.12	0.08-0.12	0.08-0.12	0.08-0.12	0.08-0.12
Chemical(%)	Al2O3	44	46	47-49	52-55	45-46	39-40
	Al2O3+SiO2	96	97	99	99	-	-
	Al2O3+SiO2+ZrO2	-	-	-	-		99
	ZrO2	-	-	-	-	5-7	15-17
	Fe2O3	<1.2	<1.0	0.2	0.2	0.2	0.2
	Na2O+K2O	≤0.5	≤0.5	0.2	0.2	0.2	0.2
Size(mm)		7200/3600610/1220/10-50mm or customized as your specification 24′/12′ 24"/48" * 0.4"/2"

Advantages and Cooperation Invitation of Rosewool Insulation Refractory Co.,Ltd:
With over 40 years of experience in industrial insulation and refractory material production, we can customize the density, thickness, and size of blankets according to the diameter of steel pipes, medium temperature, and environmental conditions;
Adequate stock, localized and fast supply+on-site technical guidance, shortening the construction period;
Provide full process services from material selection, dosage calculation, construction plan, and after-sales maintenance to ensure fire and insulation effectiveness and long-term stability;
Welcome steel plant engineering procurement and pipeline insulation project leaders to call for consultation, and obtain free samples, quotations, and technical solutions.

Ceramic fiber blanket is made of high-purity raw materials through spinning and needle punching, with a temperature resistance level covering 1050-1430 ℃, which can meet the needs of different temperature pipelines in steel plants. In the high-temperature pipeline system of steel plants, hot air pipelines, steam pipelines, gas pipelines, etc. are subjected to harsh working conditions of hundreds or even thousands of degrees for a long time, requiring extremely high temperature resistance, fire safety, and insulation effect of insulation materials. Ceramic fiber blanket, with its excellent comprehensive performance, has become an ideal choice for steel pipeline insulation and fire insulation.

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