|
Applications //
Refractory Sheet Material is available in board form as Refractory Sheet Type RS-100. Induction coil liners in induction melting furnaces, molten metal splash guards in induction furnaces, fireproof structural insulation, electrical insulation, terminals and supports, induction furnace components.
Properties & characteristics //
| |
| Color |
White to buff |
| Typical Composition, % |
|
| Al2O3 |
65 |
| SiO2 |
21 |
| Other Metal Oxides |
14 |
| Organics |
Nil |
| Density, kg/m3 (pcf) |
1600 (100) |
| Maximum Use Temperature* C (F) |
1260 (2300) |
| Modulus of Rupture** |
|
| At Room Temperature MPa (psi) |
16.5 (2400) |
| Thermal Expansion |
~4.4 x 10-6/°F (8 x 10-6/°C) |
| Linear Shrinkage***, % |
|
| 24 hr. soak at 752°F (400°C) |
0.2 |
| 24 hr. soak at 1112°F (600°C) |
0.4 |
| 24 hr. soak at 2012°F(1100°C) |
2.0 |
| Dielectric Strength (ASTM D-149) volts/mil |
55 |
| Volume Resistivity (ASTM D-257) ohm-cm |
7.2 x 1011 |
| Surface Resistivity (ASTM D-257) ohms |
2.3 x 1011 |
* Maximum use temperature is dependent on variables such as stresses, both thermal and mechanical, and the chemical environment that the insulation experiences.
** Properties expressed parallel to thickness.
*** Properties expressed perpendicular to thickness. |