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Item # RS-100, RS-100 (2300ºF Refractory Matrix Composite Board)



RS-100 is a ceramic fiber reinforced structural alumina composite material with useful properties to 1260ºC (2300ºF). It has exceptional flexural and compressive strengths in the range of high temperature reinforced plastics such as G-7 and G-10 laminates and retains strength and utility to levels far exceeding maximum use temperatures of plastics. Mechanical properties of Type RS-100 sheet far exceed those of Transite™ and other asbestos-cement materials and is an excellent replacement for these rigid asbestos-containing products. RS-100 can also be employed at much higher temperatures than these types of products.RS-100 is 100% inorganic, non-flammable and contains no asbestos. Its high Al2O3 content makes it highly resistant to many environments, including molten aluminum. It undergoes little or no outgassing on heating. It is not brittle and has high impact properties. RS-100 may be cut and machined with standard tooling. RS-100 sheet is used both as a full-size panel and as a source for precision-cut fabricated components. RS-100 is also available in cylinder form by request.




Specifications  · Applications

Specifications

Typical Composition

Al2O3 - 75 %
Organic Content - 0
%
Other Metal Oxides - 9
%
SiO2 - 16
%

Density

2.1 g/cm³
130
lb/ft³

Porosity

35 %

Color

White to Tan

Flammability

Nil

Maximum Use Temperature

1260 ºC
2300
ºF

Melting Point

1500 ºC
2732
ºF

Modulus of Rupture, as Received

55 MPa
8000
psi

Modulus of Rupture, After 4 hrs. at 600ºC (1112ºF)

36 MPa
5200
psi

Compressive Strength at 2% Compression

69 MPa
10000
psi

Specific Heat at 600ºC (1100ºF)

1172 J/kgºK
0.28
BTU/lb/ºF

Thermal Expansion, RT - 400ºC (752ºF)

3.3 x 10-8/F
6.0 x 10-5/C

Linear Shrinkage at 4 hrs. at 1200ºC (2200ºF)

1 to 2 %

Moisture Content at 105ºC (220ºF)

0 to 2 %

Loss on Ignition at 982ºC (1800ºF)

1 to 2 %

Hardness, Durometer “D”

90

Volume Resistivity

7.2 x 1011 ohm-cm

Surface Resistivity

2.3 x 1011 ohm

Dielectric Strength

71 V/mil

Breakdown Voltage (1/8" Thick Piece)

7.3 kV

Arc Resistance

>420 sec

Thermal Conductivity at 200ºC (392ºF)

4.4 BTU-in/hr-ft²-ºF
0.634
W/m-ºK

Thermal Conductivity at 400ºC (752ºF)

4.41 BTU-in/hr-ft²-ºF
0.636
W/m-ºK

Thermal Conductivity at 600ºC (1112ºF)

4.42 BTU-in/hr-ft²-ºF
0.638
W/m-ºK

Thermal Conductivity at 800ºC (1472ºF)

4.44 BTU-in/hr-ft²-ºF
0.638
W/m-ºK

Thermal Conductivity at 1000ºC (1832ºF)

4.46 BTU-in/hr-ft²-ºF
0.643
W/m-ºK

Thermal Conductivity at 1200ºC (2192ºF)

4.5 BTU-in/hr-ft²-ºF
0.648
W/m-ºK


Applications
  • Asbestos-cement board replacement.
  • Specialty furnace components such as bottom supports for quartz furnaces, furnace shells with element feed throughs and low temperature kiln and oven walls.
  • 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 shields.
  • Non-ferrous metal handling as spouts, troughs, and casting tips
  • Electrical terminal blocks and electrical resistor grids, due to its good electrical resistivity, good mechanical strength and its ability to withstand temperatures to 1260ºC (2300ºF).
  • Electrical insulators for induction pressing of diamond saw segments.
  • Brazing separators and fixtures. The high Al2O3 content makes it resistant to sticking in many environments including molten metals.
  • Used in the glass industry as dead plates, set out plates, wear guides and pusher pads in hot glass handling




 MORE IMAGES 

·  RS-100-Data

·  Refractory Composites


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