| REFRACTORY SHEET BOARD TYPE
RS-1200 |
|
GENERAL INFORMATION
General Information
ZIRCAR Refractory Sheet Type RS-1200 is a high strength composite
designed for use as thermo-mechanical and electrical insulation in applications
with temperatures as high as 1300캜(2372캟). RS-1200 is a combination of strong
reinforcing fibers tightly bound in an alumina ceramic matrix. RS-1200 is
completely inorganic and contains no asbestos or RCF fibers. RS-1200 exhibits
greater refractoriness and homogeneity than other reinforced alumina matrix
composite products and can be readily machined to tight tolerances with
conventional carbide tooling. |
SUGGESTED APPLICATIONS
Induction Furnace Components such as; Coil Support Posts, Coil
Liners, Furnace Tops, Bases, Front and Back Plates
Electrical Terminal Blocks and Supports for Electrical Resistor
Grids Operating In High Temperature Environments
Exterior Structural Insulation In High Temperature Electrically
Heated and Gas Fired Furnaces
Hot Face Structural Insulation In Glass Tempering And Annealing
Furnaces
Brazing Separators and Fixtures
General Protective Heat Shielding in Foundry Environments
Insulation In High Pressure Molding Presses
Hearthplates and Furnace Shelving.
|
CHARACTERISTICS &
PROPERTIES
|
Typical Composition, % |
|
|
Al2O3 |
82 |
|
SiO2 |
12 |
|
Other Metal Oxides, % |
6 |
|
Organic Content , % |
0 |
|
Density, gm/cm3
(lb/ft3) |
2.16 (135) |
|
Porosity, % |
31 |
|
Color |
White |
|
Flammability |
Nil |
|
Max Use Temperature*,C (F) |
1300 (2372) |
|
Melting Point, C (F) |
1500 (2732) |
|
Modulus of Rupture**, MPa (psi) |
|
|
as Received |
31 (4500) |
|
Compressive Strength**, MPa (psi) |
|
|
at 2% Compression |
55 (8,000) |
|
Specific Heat, J/kg K
(BTU/lb?/sup>F) |
|
|
at 600?/sup>C
(1100?/sup>F) |
1172 (0.28) |
|
Thermal Expansion, |
|
|
RT- 400?/sup>C
(752?/sup>F) |
9.0 x 10-6/캜 |
|
Linear Shrinkage^, % |
|
|
after 24 hrs. at 1100캜 (2012캟) |
0.7 |
|
after 2 4 hrs. at 1300캜 (2372캟) |
1 |
|
Loss on Ignition, % at 982캜 (1800캟) |
1 - 2 |
|
Hardness, Durometer "D" |
85 - 90 |
|
Electrical Properties, |
|
|
Volume Resistivity, ohm-cm |
7.2 x 1011 |
|
Surface Resistance, ohms |
2.3 x 1011 |
|
Dielectric Strength, Volts/mil |
71 |
|
Breakdown Voltage, kV |
|
|
(1/8" thick piece) |
7.3 |
|
Arc Resistance, sec. |
>420 |
|
Thermal Conductivity**, |
|
|
W/m K (BTU/ ft2
?/sup>F/in) |
|
|
200캜 (392캟) |
0.62 (4.3) |
|
400캜 (752캟) |
0.65 (4.5) |
|
600캜 (1112캟) |
0.66 (4.6) |
|
1000캜 (1832캟) |
0.68
(4.7) |
* Maximum use temperature is dependent on
variables such as stresses, both thermal and mechanical, and the chemical
environment that the material experiences.
** Properties expressed parallel
to thickness.
^ Properties expressed perpendicular to thickness.
AVAILABILITY
Please
call, fax or e-mail for pricing and availability.
| Item
# |
Description |
| AS01 |
RS-1200, 24" X 24" X
1/8" |
| AS02 |
RS-1200, 24" X 24" X
3/16" |
| AS03 |
RS-1200, 24" X 24" X
1/4" |
| AS04 |
RS-1200, 24" X 24" X
3/8" |
| AS05 |
RS-1200, 24" X 24" X
1/2" |
| AS06 |
RS-1200, 24" X 24" X
3/4" |
| AS07 |
RS-1200, 24" X 24" X
1" |
| AS08 |
RS-1200, 24" X 24" X
2" |
| AS20 |
RS-1200, 24" X 48" X
1/8" |
| AS21 |
RS-1200, 24" X 48" X
3/16" |
| AS22 |
RS-1200, 24" X 48" X
1/4" |
| AS23 |
RS-1200, 24" X 48" X
3/8" |
| AS24 |
RS-1200, 24" X 48" X
1/2" |
| AS25 |
RS-1200, 24" X 48" X
3/4" |
| AS26 |
RS-1200, 24" X 48" X
1" |
| AS27 |
RS-1200, 24" X 48" X
2" |
| AS28 |
RS-1200, 24" X 48" X 1
1/4" |
| AS29 |
RS-1200, 24" X 48" X 1
1/2" |
| AS30 |
RS-1200, 24" X 48" X 1
3/4" |
| AS50 |
RS-1200, 36" X 36" X
1/4" |
| AS51 |
RS-1200, 36" X 36" X
3/8" |
| AS52 |
RS-1200, 36" X 36" X
1/2" |
| AS53 |
RS-1200, 36" X 36" X
3/4" |
| AS54 |
RS-1200, 36" X 36" X
1" |
| AS55 |
RS-1200, 36" X 36" X
2" |
| AS60 |
RS-1200, 48" X 48" X
1/4" |
| AS61 |
RS-1200, 48" X 48" X
3/8" |
| AS62 |
RS-1200, 48" X 48" X
1/2" |
| AS63 |
RS-1200, 48" X 48" X
3/4" |
| AS64 |
RS-1200, 48" X 48" X
1" |
| AS65 |
RS-1200, 48" X 48" X
2" |
|
