General Info
ZRCI Refractory Sheet Type RS-201 and RS-202 are fiber reinforced ceramic laminate with useful properties to 1260°C (2300°F). 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 ZRCI 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
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 |
1.7×1012 |
| 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) |
0.62(4.3) |
| 427°C (800°F) |
0.65(4.5) |
| 649°C (1200°F) |
0.66(4.6) |
| 1010°C (1850°F) |
0.68(4.7) |
| Thermal Expansion |
~8×10-6/°C (4.4×10-6/°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
Composition
- Electrically Insulating
- High Strength
- High Alumina Content
- Chemical Resistant
- Fully Machinable
- Non RCF
Instructions
SUGGESTED APPLICATIONS
- Induction Coil Liners
- Induction Furnace Components
- Molten Aluminum Transport
- High Temperature Electrical Insulation
- Asbestos Replacement Pipe Replacement
- Hot Gas Flue Linings
Download the RS-201 and RS-202 Cylinders PDF File
SDS (in PDF format)
Other Information
AVAILABILITY
Please call, fax or e-mail for pricing and availability.
| Item # | Description |
| GS01 | RS-201, 1″ ID X 1 1/4″ OD X 36″ L |
| GS02 | RS-201, 1″ ID X 1 1/2″ OD X 36″ L |
| GS03 | RS-201, 2″ ID X 2 1/4″ OD X 36″ L |
| GS04 | RS-201, 2″ ID X 2 1/2″ OD X 36″ L |
| GS05 | RS-202, 1″ ID X 1 1/4″ OD X 36″ L |
| GS06 | RS-202, 1″ ID X 1 1/2″ OD X 36″ L |
| GS50 | RS-202, 2″ ID X 2 1/4″ OD X 36″ L |
| GS51 | RS-202, 2″ ID X 2 1/2″ OD X 36″ L |
PRICES ARE SUBJECT TO CHANGE WITHOUT NOTIFICATION AND ARE SUBJECT TO ZIRCAR REFRACTORY COMPOSITES, INC. TERMS AND CONDITIONS. ALL PRICES ARE F.O.B. FLORIDA, NY AND ARE IN U.S. DOLLARS