|
REFRACTORY SHEET CYLINDER TYPE RS-201 and
RS-202
GENERAL INFORMATION
| ZIRCAR
Refractory Sheet Type RS-201 and RS-202 are fiber reinforced
ceramic laminate with useful properties to 2300°F (1260°C). These
high temperature products offer high strength, moderate thermal
conductivity and excellent electrical insulation. They retain their
strength and utility to levels far exceeding maximum use
temperatures of reinforced plastics and asbestos cement
replacements. They are 100% inorganic, non-flammable and contains no
asbestos. Their high alumina content makes them resistant to many
environments including molten aluminum. RS-201 and RS-202 undergoes
little or no outgassing on heating, are not brittle, and may be cut
and machined with standard tooling. RS-201 has a highly burnished
outside surface. This is ideal when the OD is crucial for liner
placement. RS-202 has an as formed surface. They are available in
standard and custom size cylinders and are useful as induction coil
liners, induction furnace components, and molten metal transport
tubes. |
Compared to ZIRCAR Refractory Sheet Type RS-101
Cylinders , RS-201 has the following attributes:
-
Finer reinforcement structure which
allows
-
for machining of intricate
detail
-
Less tendency to delaminate
-
Higher strength
Refractory Sheet Material is
available in board form as Refractory Sheet Type
RS-200 |
SUGGESTED
APPLICATIONS
- INDUCTION COIL LINERS
- INDUCTION FURNACE COMPONENTS
- MOLTEN ALUMINUM TRANSPORT
- HIGH TEMPERATURE ELECTRICAL
INSULATION
- ASBESTOS CEMENT PIPE REPLACEMENT
- HOT GAS FLUE LININGS
CHARACTERISTICS &
PROPERTIES
|
Color |
White to buff |
|
Typical Composition, % |
|
|
Al2O3 |
65 |
|
SiO2 |
21 |
|
CaO |
8 |
|
B2O3
|
4 |
|
MgO |
1 |
|
Other Metal Oxides |
1 |
|
Organics |
Nil |
|
Density, kg/m3(pcf) |
2080 (130) |
|
Maximum Use Temperature* C (F) |
1260 (2300) |
|
Melting Point, C (F) |
1500 (2732) |
|
Volume Resistivity, (ASTM D-257)
ohm-cm |
1.7x1012
|
|
Surface Resistivity, (ASTM D-257)
ohms |
>1.3
x1013 |
|
Dielectric Strength, (ASTM D-149)
Volts/mil |
26 |
|
Arc Resistance, (ASTM D-495) sec. |
>420 |
|
Thermal Conductivity**, |
|
|
W/mK(BTU/hr. ft2
°F/in.) |
|
|
204°C (400°F) |
4.3 (.62) |
|
427°C (800°F) |
4.5 (.65) |
|
649°C (1200°F) |
4.6 (.66) |
|
1010°C (1850°F) |
4.7 (.68) |
|
Thermal Expansion |
~8x10-6/°C
(4.4x10-6/°F) |
|
Linear Shrinkage^, % |
|
|
24hrs. at 1010°C
(1850°F) |
<1 |
|
Compressive Strength**, ksi |
|
|
As supplied |
13 |
|
24hrs. at 300°C
(570°F) |
9 |
|
24hrs. at 510°C
(950°F) |
8 |
|
24hrs. at 800°C
(1472°F) |
8 |
|
24hrs. at 1010°C
(1850°F) |
10 |
|
Flexural Strength, MOR at room temp.
ksi |
|
|
As supplied |
|
|
24hrs. at 300°C
(570°F) |
10^^ |
|
24hrs. at 510°C
(950°F) |
4.5 |
|
24hrs. at 800°C
(1472°F) |
4.0 |
|
24hrs. at 1010°C
(1850°F) |
3.0 |
|
Porosity, % |
30 |
* 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.
^^Retains 10 ksi MOR after 100 hr. soak in water at room
temperature
Please call ZIRCAR Sales Office
for Current Pricing.
|
ITEM # |
DESCRIPTION |
|
GS01 |
RS-201, 1" ID X 1 1/4" OD X 48" L |
|
GS02 |
RS-201, 1" ID X 1 1/2" OD X 48" L |
|
GS03 |
RS-201, 2" ID X 2 1/4" OD X 48" L |
|
GS04 |
RS-201, 2" ID X 2 1/2" OD X 48" L |
|
GS05 |
RS-202, 1" ID X 1 1/4" OD X 48" L |
|
GS06 |
RS-202, 1" ID X 1 1/2" OD X 48" L |
|
GS50 |
RS-202, 2" ID X 2 1/4" OD X 48" L |
|
GS51 |
RS-202, 2" ID X 2 1/2" OD X 48"
L |
|
