Polycrystalline Fiber Block

Polycrystalline mullite fiber block is made of polycrystalline mullite fiber cotton after special processing, compression and cutting. The product does not contain any binder or other components, and has excellent elasticity and flexibility. The service temperature can reach above 1600℃. normal size is 200x100x50mm.

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Description

Polycrystalline mullite fiber board is made of polycrystalline mullite fiber cotton after special processing, compression and cutting. The service temperature can reach be 1500℃,1600℃,1700℃,1800℃,1900℃.

Polycrystalline Fiber Board
No.	Item	Unit
1	Classification temperature	℃	1500	1600	1700	1800	1900
2	Color		White	White	White	White	White
3	Density	kg/m3	400	450	500	550	600
4	Line shrinkage	%	≤1.0(1300℃)	≤1.0(1400℃)	≤1.0(1500℃)	≤1.0(1600℃)	≤1.0(1700℃)
5	Al₂O₃	%	＞62	＞72	＞73.5	＞75	＞78
6	Thermal Conductivity at mean Temperature of	600℃ W/(M.K)	0.078
		800℃ W/(M.K)	0.098
		1000℃ W/(M.K)	0.118

Product features:

Polycrystalline mullite fiber cotton is a new type of ultra light dhigh temperature refractory fiber cotton, which has the AL2O3 72-75%, the service temperature is 1500-1700℃. it can be widely used for lining insulation of high temperature industrial kilns and other thermal equipment in metallurgy, machinery, electronics, ceramics, chemical industry, glass, aerospace and military research.

Product application:

Lining of various kilns (heating furnace, heat treatment furnace, shuttle kiln, tunnel kiln, etc.

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Technical data

Item	PM 1600
Classification Temperature(C°)	1600
Structure	crystal
Fiber Diameter (μm)	3-5
Al2O3	72
Al2O3+SiO2	99
Fe2O3	<0.1

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