REFRACTORY SHEET TYPE RS-99M, RS-99W AND RS-99R

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GENERAL INFORMATION
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 1650C (3002F) and is able to withstand over 500 hours continuous submersion in molten aluminum at 750C (1382F) 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 300C (570F) boards are unaffected by moisture.
  • Type RS-99R boards are prefired and are unaffected by moisture. They stay rigid even if saturated with water.

SUGGESTED APPLICATIONS

  • Type RS-99 is the ideal TransiteTM and 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.

CHARACTERISTICS & PROPERTIES

Typical Composition, %

   Al2O3

99+

Color

White

Maximum Use Temperature*, C (F)

1650 (3002)

Melting Point, C (F)

+1800 (3300)

Specific Heat, BTU/lbF (J/kg°K)

0.25 (1047)

Thermal Conductivity**, RS-99R

   W/m K (BTU/hr ft2 F/in.)

Est.0.65 (4.5)

Thermal Expansion Coefficient

   RT- 1000C (1832F) RS-99R

7 x 10-6 /C (5 x 10-6/F)

Surface Area, m2/g

   3 pt. B.E.T. RS-99R

14 

Type

99M

99W

99R

Density, gm/cc (lb/ft)

1.7 (110)

2.1 (130)

2.1 (130)

Porosity, %

56

48

48

Loss on Ignition, %

4 - 5

4 - 5

0 - 1

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 1200C (2192F)

0.4 / 1

0.3 / 1

0.3 / .4

     1 hr at 1400C (2552F)

4 / 5

3 / 5

3 / 5

     1 hr at 1600C (2912F)

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.

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"

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:

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.

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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.

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