RS-99 Refractory Sheet

General Info

ZIRCAR Refractory Sheet Type RS-99 is a high density fiber based ceramic material with greater than 99% alumina purity. Type RS-99 has strength equal to asbestos cement and therefore is an excellent replacement for asbestos cement materials. Refractory Sheet Type RS-99 is usable to temperatures of 1650°C (3002°F) and is able to withstand over 500 hours 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. Refractory Sheet RS-99 boards are available in four types:

• Type RS-99M is a plastic highly moldable sheet ideally suited for forming custom geometries.
• Type RS-99W boards can be moistened with water and molded into any desired shape. After low temperature bake-out of 300°C (570°F) boards are unaffected by moisture.
• Type RS-99R boards are prefired and are unaffected by moisture. They stay rigid even if saturated with water.

 

 

Properties

Type	99M	99W	99R
Density, gm/cc (lb/ft³)	1.7 (110)	2.1 (130)	2.1 (130)
Porosity, %	56	48	48
Loss on Ignition, %	4 – 5	4 – 5	0 – 1
Dielectric Strength, Volts/mil	–	–	75
Modulus of Rupture**, MPa (psi)
at Room Temperature	–	18 (2600)	21.8 (3150)
Compressive Strength**, MPa (psi)
at 10% deflection	–	25.6 (3700)	30.1 (4350)
Linear Shrinkage‡, % length/% thickness
1 hr at 1200°C (2192°F)	0.4 / 1	0.3 / 1	0.3 / .4
1 hr at 1400°C (2552°F)	4 / 5	3 / 5	3 / 5
1 hr at 1600°C (2912°F)	8 / 10	8 / 10	8 / 11

* 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.

Composition

Refractory Sheet Type RS-99M and RS-99R are high density fiber based ceramic with greater than 99% alumina purity. They are reinforced with a high purity alumina paper and are ideal to temperatures up to 1650°C (3002°F). Type RS-99M boards can be moistened with water and molded into any desired shape. Type RS-99W boards are unaffected by moisture after a low temperature bake out of 300°C (570°F). Type RS-99R boards are prefired and unaffected by moisture and remain rigid even if saturated with water.

• All Alumina
• Strong and Durable
• Fully Machinable
• Available as a Moldable, Dried and Fired Versions

Instructions

SUGGESTED APPLICATIONS

• Type RS-99 is the ideal asbestos-cement board replacement.

• Type RS-99 is used as a high and low temperature electrical insulator.

• Type RS-99 is used for brazing separators and fixtures. The high Al₂O₃ content makes it resistant to sticking in many environments including molten metals.

• Type RS-99 is used in the glass industry as dead plates, set out plates, wear guides and pusher pads in hot glass handling.

• Type RS-99 is used as 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.

• Type RS-99 is used for rapid cycle furnace door cowls and hot face supports.

• Type RS-99 is used as a high and low temperature gasketing.

• Type RS-99 is use as non-ferrous metal handling as pouring spouts, troughs, and casting tips.

PDF

Download the RS-99 Refractory Sheet 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
DS01	RS-99M,  24″ X 24″ X 1/32″
DS02	RS-99M,  24″ X 24″ X 1/16″
DS03	RS-99M,  24″ X 24″ X 1/8″
DS04	RS-99M,  24″ X 24″ X 3/16″
DS05	RS-99M,  24″ X 24″ X 1/4″
DS06	RS-99M,  24″ X 24″ X 1/2″
DS10	RS-99M,  24″ X 48″ X 1/32″
DS11	RS-99M,  24″ X 48″ X 1/16″
DS12	RS-99M,  24″ X 48″ X 1/8″
DS13	RS-99M,  24″ X 48″ X 3/16″
DS14	RS-99M,  24″ X 48″ X 1/4″
DS15	RS-99M,  24″ X 48″ X 1/2″
DS20	RS-99W,  24″ X 24″ X 1/32″
DS21	RS-99W,  24″ X 24″ X 1/16″
DS22	RS-99W,  24″ X 24″ X 1/8″
DS23	RS-99W,  24″ X 24″ X 3/16″
DS24	RS-99W,  24″ X 24″ X 1/4″
DS25	RS-99W,  24″ X 24″ X 1/2″
DS30	RS-99W,  24″ X 48″ X 1/32″
DS31	RS-99W,  24″ X 48″ X 1/16″
DS32	RS-99W,  24″ X 48″ X 1/8″
DS33	RS-99W,  24″ X 48″ X 3/16″
DS34	RS-99W,  24″ X 48″ X 1/4″
DS35	RS-99W,  24″ X 48″ X 1/2″
DS40	RS-99R,  24″ X 24″ X 1/32″
DS41	RS-99R,  24″ X 24″ X 1/16″
DS42	RS-99R,  24″ X 24″ X 1/8″
DS43	RS-99R,  24″ X 24″ X 3/16″
DS44	RS-99R,  24″ X 24″ X 1/4″
DS45	RS-99R,  24″ X 24″ X 1/2″
DS46	RS-99R,  24″ X 24″ X 1″
DS50	RS-99R,  24″ X 48″ X 1/32″
DS51	RS-99R,  24″ X 48″ X 1/16″
DS52	RS-99R,  24″ X 48″ X 1/8″
DS53	RS-99R,  24″ X 48″ X 3/16″
DS54	RS-99R,  24″ X 48″ X 1/4″
DS55	RS-99R,  24″ X 48″ X 1/2″
DS56	RS-99R,  24″ X 48″ X 1″
DSFT01	RS-99R, 6” X 6” X 1/32”
DSFT02	RS-99R, 6” X 6” X 1/16”
DSFT03	RS-99R, 6” X 6” X 1/8”
DSFT04	RS-99R, 6” X 6” X 3/16”
DSFT05	RS-99R, 6” X 6” X ¼”
DSFT06	RS-99R, 6” X 6” X ½”
DSFT07	RS-99R, 6” X 6” X 1”
DSFT11	RS-99R, 12” X 12” X 1/32”
DSFT12	RS-99R, 12” X 12” X 1/16”
DSFT13	RS-99R, 12” X 12” X 1/8”
DSFT14	RS-99R, 12” X 12” X 3/16”
DSFT15	RS-99R, 12” X 12” X ¼”
DSFT16	RS-99R, 12” X 12” X ½”
DSFT17	RS-99R, 12” X 12” X 1”
DSRD01	RS-99R, 0.5” Diameter X 12” Rod
DSRD02	RS-99R, 0.75” Diameter X 12” Rod
DSRD03	RS-99R, 1” Diameter X 12” Rod
DSRD04	RS-99R, 1.5” Diameter X 12” Rod

CUSTOM BOARDS AND SHAPES:

Custom sizes are available on request. Boards can be made as small as .5″ x .5″ x 1/32″ and as large as 24″ x 48″ x 1″. Cylinders can be made as small as .5″ inside diameter, .56″ outside diameter and .5″ length and as large as 30″ inside diameter, 32″ outside diameter and 72 ” length.

Our manufacturing process and machining capabilities allow a wide variety of shapes to be made. Please contact us with your special requirements.