ASTM C210

Standard Test Method for Reheat Change of Insulating Firebrick

Three 9" x 4 1/2" x 2 1/2" or 3" bricks are fired for 24 hours after which the percent linear and volume changes are measured.

IFB CLASS TEMPERATURE PER TEST OF 3 EA ADD'L SPECIMEN
Group 16 1550°F $765 $25
Group 20 1950°F $810 $25
Group 23 2250°F $865 $25
Group 26 2550°F $920 $30
Group 28 2750°F $980 $30
Group 30 2950°F $1140 $35
Group 32 3150°F $1360 $35
Group 33 3250°F $1510 $35

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SIGNIFICANCE AND USE

Insulating firebrick (IFB) are classified by their bulk density and reheat change (see Classification C 155). This test method defines thermal stability by measurement of IFB'reheat change following 24 h at a test temperature.

Since this test exposes the entire sample to an isothermal temperature condition, the user should be aware that most applications for IFB involve a thermal gradient which may cause the IFB'dimensions to change differentially.

1. SCOPE

1.1 This test method covers the determination of the permanent linear (and volume) change of insulating firebrick upon reheating under prescribed conditions.

COPYRIGHT NOTICE

Extracted, with permission, from ASTM C210 Standard Test Method for Reheat Change of Insulating Firebrick, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the standard may be purchased from ASTM International, phone 610-832-9555, e-mail: service@astm.org, website:www.astm.org.

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