Refractory Sheet Type RS-99M and RS-99R0 pages

HIGH ALUMINA MATRIX
SHEETS
TYPES RS-D AND RS-99
ZIRCAR Refractory Composites, Inc. produces a comprehensive range of advanced high performance ceramic-ceramic
composites and related products. Our materials are used around the world in demanding thermal, structural and
electrical insulating applications at temperatures from 600°C(1112°F) to 1650°C(3002°F). For over twenty-five years we
have been a problem solver working with many industries to resolve their thermal management problems. We have
developed materials that have become industry standards for induction melting, forging and heat-treating applications,
investment casting, glass processing, hot pressing, as well as many high temperature electrical applications.
ZIRCAR Refractory Sheet Type RS-99 is a moderately
high-density fiber based ceramic material with greater than
99% Alumina purity. Refractory Sheet Type RS-99 is
usable to temperatures of 1650°C (3002°F) and is able to
withstand over 500 hours of continuous submersion in
molten aluminum at 750°C (1382°F) with no wetting and
no degradation in properties. Type RS-99’s high Alumina
content is ideal for high vacuum, reducing atmospheres
and other applications where silica cannot be tolerated,
such as setters for P/M and MIM applications. Refractory
Sheet Type RS-99 boards are available in three types:
Type RS-99M is a plastic highly moldable sheet ideally
suited for forming custom geometries or for molding in
place.
Type RS-99W boards can be moistened with water and
molded into any desired shape. After a low temperature
bake-out of 300°C (570°F) the boards are unaffected by
moisture.
Type RS-99R boards are prefired and are unaffected by
moisture. They remain rigid even if saturated with water.
TYPE
Nominal Composition, wt%
Al2O3
SiO2
Organic content
Color
Max. Use Temp. *, °C(°F)
Specific Heat,
J/kg°K(BTU/lb°F)
at 600°C(1100°F)
Flammability
Thermal Expansion,
RT-400°C(752°F)
Surface Area, m2
3 pt. B.E.T. RS-99R
RS-99
•
•
RS-D
99+
SUGGESTED APPLICATIONS
90
•
<1
10
<1
<1
White
White
1650(3002) 1300(2370)
•
•
1047(0.25) 1047(0.25)
Nil
Nil
7.0x10-6/°C 6.0x10-6/°C
(5x10-6/°F) (3.3x10-6/°F)
14
na
* Maximum use temperature is dependent on variables such as stresses,
both thermal and mechanical, that the sheet product experiences.
ZIRCAR Refractory Composites, Inc.
P.O. BOX 489, FLORIDA, NY 10921-0489
Tele: (845) 651-2200, Fax: (845) 651-1515
e-mail: sales@zrci.com
Home page: http://www.zrci.com
•
•
•
High and Low Temperature Gasketing
TransiteTM and Asbestos-Cement Board
Replacement
Dead Plates, Set Out Plates, Wear Guides
and Pusher Pads in Hot Glass Handling
Induction Furnace Components Such as;
Channel Melter Components, Coil Liners,
Coreless Induction Components, Covers,
Tops, Bases, Front and Back Plates, Coil
Supports, Splash and Coil Shield
Brazing Separators and Fixtures. The High
Al2O3 Content Makes it Resistant to Sticking
in Many Environments Including Molten
Metals
Rapid Cycle Furnace Door Cowls and Hot
Face Supports
Insulation in High Pressure Molding Presses
High and Low Temperature Electrical
Insulator
Technical Data
Bulletin No. ZRCI-020
July 2005
This information, which is subject to change, is offered solely for your consideration and should not be taken as a warranty or representation for which we assume legal responsibility. It is not to be
understood as permission or recommendation to practice a patented invention without a license and the user should determine whether relevant patents exist.