Zirconia Ceramic Fiber Blanket

Name: Zirconia Ceramic Fiber Blanket
Brand: ZOUYU

Ceramic Fiber Blanket - Swinging Fibre Thermal Insulation

Product Overview

ZOUYU zirconia ceramic fiber blankets are manufactured using advanced swinging fibre technology, producing lightweight, flexible, and high-strength thermal insulation. With a classification temperature of 1430°C and working temperature up to ≤1350°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.

Why is zirconia added to ceramic fiber?

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Adding 15-17% ZrO₂ raises the classification temperature to 1430°C and the continuous working temperature to 1350°C. Zirconia inhibits crystal growth at high temperature, which reduces permanent shrinkage and keeps the fibre flexible after long exposure.

How does HZ compare with HA?

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HA (52-55% Al₂O₃) is rated for continuous service to 1200°C; HZ trades alumina for zirconia, pushing that ceiling to 1350°C with better shrinkage resistance above 1200°C. Below 1200°C, HA is usually the more economical choice.

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 HZ grade is classified at 1430°C and rated for continuous service at up to 1350°C.

Where is zirconia blanket typically used?

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Typical applications are the hot face of high-temperature kilns, cracking and reforming furnaces, ceramic sintering furnaces, and any zone running continuously above 1200°C where standard alumina-silicate grades would shrink prematurely.