|
REFRACTORY SHEET BOARD TYPE RS-DD AND
RS-DR
GENERAL INFORMATION
|
ZIRCAR Refractory Sheet Type RS-D is a
structural high-alumina product supplied in thin sheet form. It is
composed of high purity alumina, reinforced with high-alumina
ceramic fibers. Refractory Sheet Type RS-D is available in four
types, Two types of moldables, and two types of rigid
sheets.
TYPES RS-DA & RS-DM can be readily cut with
a knife or scissors. Joints can be made by wetting both surfaces
with water (with a sponge or brush) and promptly pressing the two
surfaces together. Thickness greater than 1/8" can be made by
laminating two or more sheets together in this manner.
Refractory Sheet Type RS-DD is suitable for die
cutting or stamping of gaskets. It can be re-wet, made moldable, and
handled like Type RS-DM.
Type RS-DR cuts and handles similar to Type
RS-DD except it is slightly less compressible and more rigid. It has
been fired so that it will remain rigid even when wet. |
They are as follows:
-
TYPE RS-DA is a plastic
highly moldable sheet ideally suited for forming custom geometries
(see Moldable Materials).
-
TYPE RS-DM Sheet is a
moldable form of Type D with a higher density than obtainable from
Refractory Sheet Type DA. Type DM is ideally suited for
fabricating complex shapes from a flat sheet product for use in
metal clad electric band and strip heaters (see Moldable
Materials).
-
TYPE RS-DD is a rigid sheet which
can be moistened with water to impart moldability.
-
TYPE RS-DR is a rigid pre-fired
sheet which has been heat-treated to remove all organic binder and
is stable to moisture attack. Refractory Sheet Type RS-DR is
suited for use as a setter or barrier for use in the sintering of
powder metal parts. |
SUGGESTED APPLICATIONS
- ASBESTOS CEMENT BOARD REPLACEMENT
- OVEN CONSTRUCTION
- INDUCTION HEATING LINERS AND COIL
FIXTURES
- HIGH TEMPERATURE GASKETING
- MOLDED SHAPES, TUBES, TRAYS, BOATS, ETC. FOR
SINTERING AND HEAT-TREATING
- HEATING ELEMENT SUPPORT
- FIREPROOF STRUCTURAL INSULATION
- NON-FERROUS METAL HANDLING, SPOUTS, TROUGHS,
CASTING TIPS
- BRAZING SEPARATORS AND FIXTURES
- HOT FURNACE REPAIRS
- MOLDS FOR FUSING AND SLUMPING OF
GLASS
PROPERTIES &
CHARACTERISTICS
|
Type |
DR |
DD |
DM |
DA |
|
Form |
Rigid sheet |
Rigid sheet2,3 |
Moldable sheet1,3 |
Plastic moldable
sheet1,3 |
|
Typical Composition, % |
|
|
|
|
|
Al2O3 |
90(dry) |
90(dry) |
90(dry) |
90(dry) |
|
SiO2 |
10(dry) |
10(dry) |
10(dry) |
10(dry) |
|
Organics |
nil |
nil |
<1 |
<1 |
|
Color |
White |
White |
White |
White |
|
Density(as supplied), pcf |
130 |
130 |
145 |
100 |
|
after drying @
100°C |
|
|
130 |
85 |
|
Thickness shrinkage, |
|
|
|
|
|
on drying at 100°C,
% |
|
|
10 |
25 |
|
Moisture, as supplied, % |
2 (4) |
3 (4) |
20 |
40 |
|
Maximum Use Temp. * °C(°F) |
1200 (2192) |
1200 (2192) |
1200 (2192) |
1200 (2192) |
|
Melting Point, °C(°F) |
1815 (3300) |
1815 (3300) |
1815 (3300) |
1815 (3300) |
|
Specific Heat, BTU/lb °F |
0.25 |
0.25 |
0.25 |
0.25 |
|
Modulus of Rupture, psi, |
|
as supplied |
3000 |
|
|
|
|
after firing 8 hrs. @
600°C |
|
|
|
490 |
|
Compressive Strength, psi |
|
|
|
|
|
as supplied @
5% compression |
10,000 |
|
|
|
|
at 8%
compression |
20,000 |
|
|
|
|
after firing 8 hrs. @
600°C, |
|
|
|
|
|
10% compression |
|
|
|
200 |
|
Firing Shrinkage, % |
|
|
|
|
|
after 1 hr. @
1000°C |
|
|
|
1 |
|
after 4 hrs. @
1000°C |
|
1 |
|
|
|
after 4 hrs. @
1200°C |
|
4 |
|
|
|
after 24 hrs. @
1200°C |
5 |
5 |
|
|
|
after 24 hrs. @
1400°C |
|
8 |
|
|
|
after 24 hrs. @
1500°C |
|
10 |
|
|
|
Thermal Expansion, in/in°C |
|
7x10-6 |
|
|
|
Softening Point, °C |
|
775 |
|
|
|
Arc Resistance, sec. |
360 |
|
|
|
|
Dielectric Strength, VPM |
530 |
|
|
|
|
Volume Resistivity, ohm-cm |
|
5x107 |
|
|
|
Thermal Conductivity, BTU/hr °F/in at mean
temp. = 600°C(estimated) |
|
|
4.5 |
|
|
3.8 |
1 Becomes rigid upon drying.
2 Can be made
moldable with addition of 10-20 wt% H2O.
3 Can be made
permanently rigid by heating to 300°C(570°F).
4 Depending on
humidity.
* Maximum Use Temperature is dependent on variables such as
stresses, both thermal and mechanical, and the chemical environment that
the sheet product experiences. Contact ZIRCAR Sales Office for more
information about the performance of these products in your
application.
STANDARD
AVAILABILITY
Prices effective
11-01-01
|
ZRCI ITEM # |
DESCRIPTION |
1 to 9 |
10 to 25 |
26+ |
|
JS01 |
RS-DA 18" X 24" X .020" |
$58 |
$55 |
$52 |
|
JS02 |
RS-DA 18" X 24" X .040" |
$76 |
$72 |
$68 |
|
JS03 |
RS-DA 18" X 24" X .080" |
$90 |
$85 |
$81 |
|
JS04 |
RS-DA 18" X 24" X .120" |
$119 |
$113 |
$107 |
|
JS05 |
RS-DA 36" X 48" X .020" |
$154 |
$146 |
$138 |
|
JS06 |
RS-DA 36" X 48" X .040" |
$217 |
$207 |
$196 |
|
JS07 |
RS-DA 36" X 48" X .080" |
$271 |
$257 |
$244 |
|
JS08 |
RS-DA 36" X 48" X .120" |
$327 |
$310 |
$294 |
|
JS20 |
RS-DM 18" X 24" X .020" |
$46 |
$44 |
$41 |
|
JS21 |
RS-DM 18" X 24" X .040" |
$62 |
$59 |
$56 |
|
JS22 |
RS-DM 18" X 24" X .080" |
$74 |
$70 |
$66 |
|
JS23 |
RS-DM 18" X 24" X .120" |
$85 |
$81 |
$77 |
|
JS24 |
RS-DM 36" X 48" X .020" |
$113 |
$107 |
$101 |
|
JS25 |
RS-DM 36" X 48" X .040" |
$177 |
$168 |
$159 |
|
JS26 |
RS-DM 36" X 48" X .080" |
$230 |
$219 |
$207 |
|
JS27 |
RS-DM 36" X 48" X .120" |
$276 |
$262 |
$248 |
|
JS50 |
RS-DD 18" X 24" X .020" |
$32 |
$31 |
$29 |
|
JS51 |
RS-DD 18" X 24" X .040" |
$48 |
$46 |
$43 |
|
JS52 |
RS-DD 18" X 24" X .080" |
$60 |
$57 |
$54 |
|
JS53 |
RS-DD 18" X 24" X .120" |
$71 |
$68 |
$64 |
|
JS54 |
RS-DD 36" X 48" X .020" |
$67 |
$63 |
$60 |
|
JS55 |
RS-DD 36" X 48" X .040" |
$131 |
$125 |
$118 |
|
JS56 |
RS-DD 36" X 48" X .080" |
$184 |
$175 |
$166 |
|
JS57 |
RS-DD 36" X 48" X .120" |
$230 |
$219 |
$207 |
|
JS70 |
RS-DR 18" X 24" X .020" |
$53 |
$50 |
$48 |
|
JS71 |
RS-DR 18" X 24" X .040" |
$76 |
$72 |
$68 |
|
JS72 |
RS-DR 18" X 24" X .080" |
$95 |
$90 |
$85 |
|
JS73 |
RS-DR 18" X 24" X .120" |
$111 |
$106 |
$100 |
|
JS74 |
RS-DR 36" X 48" X .020" |
$122 |
$116 |
$110 |
|
JS75 |
RS-DR 36" X 48" X .040" |
$228 |
$217 |
$205 |
|
JS76 |
RS-DR 36" X 48" X .080" |
$280 |
$266 |
$252 |
|
JS77 |
RS-DR 36" X 48" X .120" |
$336 |
$319 |
$302 |
CUSTOM BOARDS AND SHAPES
- Our manufacturing process and machining
capabilities allow a wide variety of shapes to be made. Please contact
us with your special requirements.
|
