High Temperature Alumina Board 1700c 1800 C 1900c

• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials
• Type: Refractory Material
• Shape: Block
• Material: Mullite
• Temperature Grade: up to 1900c
• Model NO.: NR1700; NR 1800, NR1900
• Color: While
• Standard Size: 1000 X 600 mm
• Density: up to 700 Kg/M3

Product Description

High Temperature Alumina Board  board is made of high purity alumina fibrous and alumina powder,to be formed and fired in special equipment with advanced patent process,can withstand temperature up to 1900 Deg centigrade. 


Features of Alumina Board 1700 / 1800 /1900C Boards
1.Low thermal conductivity
2.High compression strength.
3.Long service life.
4.Good thermal shock resistance and good toughness.
5.Flexible and tearing resistance.
6.Easy to cut and operate.
6.Good electric and sound insulation.
7.Good mechanical working performance.
 
Alumina Board Types:

Type	NR-1000	NR-1260	NR-1400	NR-1600	NR-1700	NR-1800
Classification Temperature	1000	1260	1400	1600	1700	1800
Density  (Kg/m3	350	400	400	450	450	550
Line Change (.CX24hS)	1.3 (900.C)	1.1 (1100.C)	1.6 (1200.C)	<2.0 (1400.C)	<2.0 (1500.C)	<2.0 (1600.C)
Compressive Strength	0.5	0.5	0.5	0.3	0.3	0.3

 
Alumina Fiber Board 1700 Physical Character:

Density(Kg/m3)		400
Strength to resist bending(MPa,25.C)		0.72
Linear shrinkage rate % (1600 .Cx8hrs)		0.13(1.7)
Expansion rate at %(600.C)		0.28
Average modulus of linear expansion  (x10-6/K)		1.77
Thermal conductivity rate GHP[W/(mK)]	400.C	0.147
	600.C	0.186
	800.C	0.236
	1000.C	0.296
Chemical Composition	AL2O3:87% SiO2:13%

  
Alumina Fiber Board 1700 Standard Sizes:
25x600x1000mm
50x600x900mm
 
Applications : 
Ceramics kiln, mechanic and metallurgy heating furnace
Thermal treatment furnace and others industrial furnace and hot face
Internal lining Low heating quantity 
High-temperature block-fire and flame-insulated
Kiln door, kiln car and dilatation joint etc insulation material