RS-D Sheet Types | ZIRCAR Refractory Composites, Inc.

General Info

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.

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).

Properties

Type	DR	DD	DM	DA
Form	Rigid sheet	Rigid sheet^2,3	Moldable sheet^1,3	Plastic moldable sheet^1,3
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)	1450 (2642)	1450 (2642)	1450 (2642)	1450 (2642)
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		7×10^-6
Softening Point, °C		775
Arc Resistance, sec.	360
Dielectric Strength, VPM	530
Volume Resistivity, ohm-cm		5×10⁷
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.

Composition

Refractory Sheet Type RS-DA and RS-DM are structural high purity alumina forms reinforced with high alumina fibers. Type RS-DA is a plastic highly moldable sheet ideally suited for forming custom geometries. Type RS-DM is highly moldable with a higher density than Type RS-DA and is ideally suited for fabricating complex shapes from a flat sheet, for use in metal clad electric band heaters and strip heaters.

Refractory Sheet Type RS-DD and RS-DR are structural high purity alumina forms reinforced with high alumina fibers. Type RS-DD is a rigid sheet that can be moistened with water to impart moldability. Type RS-DR is a rigid prefired sheet which has been heat treated to remove all organic binder and is stable to moisture attack. Type RS-DR is ideal for use as a setter or barrier in the sintering of powder metal parts. Type RS-DD is widely used by Hot Glass Artist as slumping and fusing molds due to its non sticking nature.

Instructions

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

PDF

Download the RS-D Sheet Types PDF File

SDS (in PDF format)

Download 1st PDF File

Download 2nd PDF File

Other Information

AVAILABILITY

Please call, fax or e-mail for pricing and 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.