High-Purity Ceramic Fiber Blanket

Name: High-Purity Ceramic Fiber Blanket
Brand: ZOUYU

Ceramic Fiber Blanket - Swinging Fibre Thermal Insulation

Product Overview

ZOUYU high-purity ceramic fiber blankets are manufactured using advanced swinging fibre technology, producing lightweight, flexible, and high-strength thermal insulation. With a classification temperature of 1260°C and working temperature up to ≤1100°C, this grade is ideal for demanding high-temperature industrial applications.

Key Features

Low thermal conductivity and low heat capacity
Excellent thermal stability and anti-thermal shock performance
Good tensile strength and flexibility
Easy to cut, wrap, and install
Resistance to gas erosion and chemical attack
Double-side needle-punched for enhanced strength

Applications

Industrial Furnaces Heating Devices High-Temp Duct Linings Chemical Reaction Vessels Power Plants High-Rise Fire Protection Kiln Doors

Technical Specifications

Property	COM (Ordinary)	ST (Standard)	HP (High-Purity)	HA (High-Alumina)	HZ (Zirconia)
Classification Temperature	1100°C	1260°C	1260°C	1360°C	1430°C
Working Temperature	≤1000°C	≤1050°C	≤1100°C	≤1200°C	≤1350°C
Density (kg/m³)	96	128	128	128	128
Al₂O₃ (%)	44	46	47-49	52-55	39-40
Al₂O₃ + SiO₂ (%)	96	97	99	99	--
ZrO₂ (%)	--	--	--	--	15-17
Fe₂O₃ (%)	<1.2	<1.0	<0.2	<0.2	<0.2
Standard Size	7200 × 610 × 10-50 mm

FAQ

Frequently Asked Questions

Technical and commercial answers for this product. If your question is not here, our engineers will answer it directly.

What is the difference between classification temperature and working temperature?

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Classification temperature is the laboratory grading point at which a sample stays within a defined linear shrinkage after 24 hours. It is a grade label, not a service limit. Working temperature is the continuous-use ceiling in a real furnace atmosphere, and that is the number you should design to. The HP grade is classified at 1260°C and rated for continuous service at up to 1100°C.

How is HP blanket different from standard (ST) blanket?

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HP is produced from higher-purity raw materials, raising Al₂O₃ + SiO₂ to 99% and cutting Fe₂O₃ to below 0.2%, against 97% and below 1.0% for ST. Lower iron and alkali content improves stability in reducing atmospheres and reduces the risk of fluxing at temperature.

When should I upgrade from HP to HA or HZ?

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Move to HA (working temperature up to 1200°C) when the continuous hot face exceeds 1100°C or when the furnace cycles heavily. Move to HZ (up to 1350°C) for service above 1200°C.