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