Burntstone
CERAMIC LIMITED
Technical Data
April 2000

SG70-130

Structural Ceramic Sheet

Description

SG70-130 is a non-asbestos ceramic refractory reinforced with continuous fibres to increase the toughness, structural reliability and overall performance of the ceramic composite. Supplied in sheets, boards, cylinders and other geometric shapes, SG70-130 exhibits non-brittle behaviour and can withstand extreme thermal shock and cycling within its specified temperature range. Chemically inert, unaffected by moisture and non-wetting to non--ferrous metals, SG70-130 is machinable with standard tools. Thermally and electrically insulating, SG70-130 is an excellent material choice for a variety of structural applications.

Chemical Properties

Al2O370%SiO220% Other metal oxides10%

Physical Properties
 

Maximum Service Temperature815°Ccontinuous service
1260°Cshort term service
Density (kg/m3)2000
Modulus of Rupture (MPa)58
Compressive strength (MPa)85
Linear change (%) after 24h at
870°C-0.5
1260°C-1
Electrical resistivity (Ohm.cm)52x1010
Dielectric Constant5.5
Dielectric Strength (V/mm)3580

Thermal conductivity

Temperature °CW/mK
2050.60
4250.63
6250.67
10000.70

Applications

  – HIP and hot press plattens   – Induction coil liners and supports
  – Kiln furniture   – Electrical insulation

Availability

BoardsCylinders
  – 1220 x 1220mm in thicknesses of  – up to 915mm Inner Diameter
  – 0.8, 1.5, 3, 4.5, 6, 9.5, 12.5   – 6 to 13mm Wall Thickness
      19, 25, 38, 50, 75, 100mm  – up to 2150mm Length
  – other shapes and sizes on request.

The information and data herein are offered solely for your consideration and guidance and are not to be construed as a warranty or specification. Nothing contained herein is to be interpreted as authorisation to practice a patented invention without a licence.

BURNTSTONE CERAMIC LIMITED 19 Redgates, Walkington, Beverley HU17 8TS
Tel: +44 (0) 1482 868706
E-mail: sales@burntstone.co.uk  Home page: http://www.burntstone.co.uk
Registered in England 2113851
Website Version 4.6 - Last revision date: 12 March 2008

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