REFRACTORY SHEET TYPE RSLE-501 CYLINDERS

(PDF VERSION)

GENERAL INFORMATION

ZIRCAR Refractory Sheet Type RSLE-501 is a low expansion high strength reinforced silica matrix composites in a cylindrical form. This remarkable material was designed for use as a high strength, durable insulator in induction heat treating applications. RSLE-501's very low thermal expansion coefficient and high hot strength combine to give it thermal shock resistance not found in other structural ceramic materials. 

RSLE- 501 exhibits a very low coefficient of expansion 0.3 x 10-6 C  which provides remarkable resistance to the thermal shock up to 1200C (2192F) in an oxidizing atmosphere and permits its use with rapid variation in temperature in that zone. Beyond 1200C (2192F) it will transforms into a crystalline structure, while maintaining its properties up to 1650C (3002F) providing that there is no significant fall in temperature. At temperatures above this the material will exhibit surface glazing.

RSLE-501 also exhibits exceptional non-wetting properties when used in contact with molten aluminum making it useful in numerous molten aluminum contact applications.

Unique properties of RSLE-501 are:

  • A low thermal conductivity.

  • An excellent electrical insulation.

  • A high chemical purity.

  • An excellent resistance to corrosion (from molten metal and glass)

RSLE-501 is 100% organic free and contains no refractory ceramic fiber. It is readily machined to precision tolerances with conventional tooling.

PROPERTIES & CHARACTERISTICS

Thermal Expansion Coeff.

 

    Room Temp. to 800C(1472F)

0.3 x 10-6/C

Nominal Composition, wt%

 

    SiO2

99.7

    Other Oxides

<0.3

    Organics

0

Density, g/cc(pcf)

2.1(90)

Porosity, %

31

Color

White

Hardness, Durometer "D"

87

Charpy Impact Strength, ft-lb

0.8

Compressive Strength**, MPa(psi)

 

    at 2.7% consolidation

48(7000)

Modulus of Rupture**, MPa(psi)

30(4300)

Thermal Conductivity** ASTM C-1113

    W/mK(BTU/hr ft F/in)

 

        200C(392F)

0.55(3.8)

        400C(752F)

0.64(4.4)

        600C(1112F)

0.61(4.2)

        800C(1472F)

0.67(4.6)

        1000C(1832F)

0.75(5.2)

Volume Resistivity, ohm-cm

 

    ASTM D-257-93

7.5 x 109

Dielectric Strength, volts/mil

 

    ASTM D-149-95

43

Linear Shrinkage, %

Length

Width

Thickness

    24hrs @800C(1472F)

0.1

0.1

0

    24hrs @ 1100C(2012F)

4.9

4.9

7.9

* 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
IS01 RSLE-501 Cylinder, 2" ID X 2 1/2" OD X 30" L
IS02 RSLE-501 Cylinder, 3" ID X 3 1/2" OD X 30" L
IS03 RSLE-501 Cylinder, 4" ID X 5" OD X 30" L
IS04 RSLE-501 Cylinder, 5" ID X 6" OD X 30" L
IS05 RSLE-501 Cylinder, 6" ID X 7" OD X 30" L
IS06 RSLE-501 Cylinder, 7" ID X 8" OD X 30" L

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

HOME

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.

Copyrights and trademarks are the property of  ZIRCAR Refractory Composites, Inc.
{ for technical problems viewing these pages, please contact
sales@zrci.com}