| REFRACTORY SHEET TYPES RS-DA,
RS-DM, RS-DD and RS-DR
|
(PDF
VERSION) |
GENERAL INFORMATION
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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. They are as follows:
TYPE RS-DA is a plastic highly moldable sheet ideally suited for forming custom geometries.
TYPE RS-DM Sheet is a moldable form of Type RS-D with a higher density than obtainable from Refractory Sheet Type
RS-DA. Type RS-DM is ideally suited for fabricating complex shapes from a flat sheet product for use in metal clad electric band and strip heaters.
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.
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TYPE RS-DD is a rigid sheet that can be moistened with water to impart
moldability. (see Rigid Materials)
TYPE RS-DR is a rigid pre-fired sheet that 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 (see Rigid Materials).
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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
CHARACTERISTICS & PROPERTIES
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Type
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DR
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DD
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DM
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DA
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Form
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Rigid sheet
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Rigid sheet2,3
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Moldable sheet1,3
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Plastic moldable sheet1,3
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Typical Composition, %
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Al2O3
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90(dry)
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90(dry)
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90(dry)
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90(dry)
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SiO2
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10(dry)
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10(dry)
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10(dry)
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10(dry)
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Organics
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nil
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nil
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<1
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<1
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Color
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White
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White
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White
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White
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Density (as supplied), pcf
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130
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130
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145
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100
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after drying @ 100°C
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130
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85
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Thickness shrinkage,
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|
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on drying at 100°C, %
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|
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10
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25
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Moisture, as supplied, %
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2 (4)
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3 (4)
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20
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40
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Maximum Use Temp. * °C(°F)
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1200 (2192)
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1200 (2192)
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1200 (2192)
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1200 (2192)
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Melting Point, °C(°F)
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1815 (3300)
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1815 (3300)
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1815 (3300)
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1815 (3300)
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Specific Heat, BTU/lb °F
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0.25
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0.25
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0.25
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0.25
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Modulus of Rupture, psi,
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as supplied
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3000
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after firing 8 hrs. @ 600°C
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|
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490
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Compressive Strength, psi
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as supplied @ 5% compression
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10,000
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at 8% compression
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20,000
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after firing 8 hrs. @ 600°C,
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10% compression
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|
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200
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Firing Shrinkage, %
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|
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|
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after 1 hr. @ 1000°C
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|
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1
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after 4 hrs. @ 1000°C
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1
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after 4 hrs. @ 1200°C
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4
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after 24 hrs. @ 1200°C
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5
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5
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after 24 hrs. @ 1400°C
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8
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after 24 hrs. @ 1500°C
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10
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Thermal Expansion, in/in°C
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7x10-6
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Softening Point, °C
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775
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Arc Resistance, sec.
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360
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Dielectric Strength, VPM
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530
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Volume Resistivity, ohm-cm
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5x107
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Thermal Conductivity, BTU/hr °F/in at mean temp. =
600°C(estimated)
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|
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4.5
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3.8
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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.
AVAILABILITY
| Item
# |
Description |
| JS01 |
RS-DA, 18" X 24" X .020 |
| JS02 |
RS-DA, 18" X 24" X .040 |
| JS03 |
RS-DA, 18" X 24" X .080 |
| JS04 |
RS-DA, 18" X 24" X .120 |
| JS05 |
RS-DA, 36" X 48" X .020 |
| JS06 |
RS-DA, 36" X 48" X .040 |
| JS07 |
RS-DA, 36" X 48" X .080 |
| JS08 |
RS-DA, 36" X 48" X .120 |
| JS20 |
RS-DM, 18" X 24" X .020 |
| JS21 |
RS-DM, 18" X 24" X .040 |
| JS22 |
RS-DM, 18" X 24" X .080 |
| JS23 |
RS-DM, 18" X 24" X .120 |
| JS24 |
RS-DM, 36" X 48" X .020 |
| JS25 |
RS-DM, 36" X 48" X .040 |
| JS26 |
RS-DM, 36" X 48" X .080 |
| JS27 |
RS-DM, 36" X 48" X .120 |
| JS50 |
RS-DD, 18" X 24" X .020 |
| JS51 |
RS-DD, 18" X 24" X .040 |
| JS52 |
RS-DD, 18" X 24" X .080 |
| JS53 |
RS-DD, 18" X 24" X .120 |
| JS54 |
RS-DD, 36" X 48" X .020 |
| JS55 |
RS-DD, 36" X 48" X .040 |
| JS56 |
RS-DD, 36" X 48" X .080 |
| JS57 |
RS-DD, 36" X 48" X .120 |
| JS70 |
RS-DR, 18" X 24" X .020 |
| JS71 |
RS-DR, 18" X 24" X .040 |
| JS72 |
RS-DR, 18" X 24" X .080 |
| JS73 |
RS-DR, 18" X 24" X .120 |
| JS74 |
RS-DR, 36" X 48" X .020 |
| JS75 |
RS-DR, 36" X 48" X .040 |
| JS76 |
RS-DR, 36" X 48" X .080 |
| JS77 |
RS-DR, 36" X 48" X .120 |
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.
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.
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ZIRCAR REFRACTORY COMPOSITES, INC.
P.O. BOX 489
FLORIDA, NEW YORK 10921
TEL: 845-651-2200, FAX: 845-651-1515
email: sales@zircarchina.com
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.
Copyrights and trademarks are the property
of ZIRCAR Refractory Composites, Inc.
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