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ASTM C155-97(2013)

(Classification)

Standard Classification of Insulating Firebrick

Standard Classification of Insulating Firebrick

SIGNIFICANCE AND USE
3.1 This classification establishes an orderly grouping of insulating firebrick to provide group identifications for use by those producing or purchasing these materials. The group identification number is not meant to specifically designate the maximum service temperature although the number times 100 does approximate the temperature (in degrees Fahrenheit) to be used to check the reheat change and can be used as a guide for relative temperature stability. The bulk density limits the weight per unit volume for any group as sold, but is not meant to be used for detailed engineering calculations.
SCOPE
1.1 This classification covers heat insulating material known as insulating firebrick. This material is suitable for lining certain kinds of industrial furnaces. Note 1—Insulating materials for use below 1000°F (538°C) are covered2 by ASTM Committee C-16 on Thermal Insulation.

General Information

Status
Historical
Publication Date
31-Aug-2013
ICS
81.080 - Refractories
Technical Committee
C08 - Refractories
Drafting Committee
C08.92 - The Joseph E. Kopanda Subcommittee for Editorial, Terminology and Classification
Current Stage
Ref Project

Relations

Replaces
ASTM C155-97(2007) - Standard Classification of Insulating Firebrick
Effective Date
01-Sep-2013
Referred By
ASTM C767-20 - Standard Test Method for Thermal Conductivity of Carbon Refractories
Effective Date
01-Sep-2013
Referred By
ASTM C210-95(2019) - Standard Test Method for Reheat Change of Insulating Firebrick
Effective Date
01-Sep-2013
Referred By
ASTM F1312-19(2023) - Standard Specification for Brick, Insulating, High Temperature, Fire Clay
Effective Date
01-Sep-2013
Referred By
ASTM C202-19 - Standard Test Method for Thermal Conductivity of Refractory Brick
Effective Date
01-Sep-2013
Referred By
ASTM C182-19 - Standard Test Method for Thermal Conductivity of Insulating Firebrick
Effective Date
01-Sep-2013
Referred By
ASTM C201-93(2019)e1 - Standard Test Method for Thermal Conductivity of Refractories
Effective Date
01-Sep-2013

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ASTM C155-97(2013) - Standard Classification of Insulating Firebrick
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C155 −97 (Reapproved 2013)
Standard Classification of
Insulating Firebrick
This standard is issued under the fixed designation C155; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope used to check the reheat change and can be used as a guide for
relative temperature stability. The bulk density limits the
1.1 This classification covers heat insulating material
weight per unit volume for any group as sold, but is not meant
known as insulating firebrick. This material is suitable for
to be used for detailed engineering calculations.
lining certain kinds of industrial furnaces.
4. Basis of Classification
NOTE 1—Insulating materials for use below 1000°F (538°C) are
covered by ASTM Committee C-16 on Thermal Insulation.
4.1 The classification of insulating firebrick in accordance
1.2 The values stated in inch-pound units are to be regarded
with Table 1 is based on bulk density (weight per cubic foot)
as standard. The values given in parentheses are mathematical
and the behavior in the reheat change test conducted at the
conversions to SI units that are provided for information only
specified temperature.
and are not considered standard.
5. Test Methods
2. Referenced Documents
5.1 The properties enumerated in this classification shall be
2.1 ASTM Standards:
determined in accordance with the following ASTM test
C134 Test Methods for Size, Dimensional Measurements,
methods:
and Bulk Density of Refractory Brick and Insulating
5.1.1 Bulk Density—Test Methods C134.
Firebrick
5.1.2 Reheat Change—Test Method C210. For the purpose
C210 TestMethodforReheatChangeofInsulatingFirebrick
of this classification, the percentage of reheat change shall be
obtained from only the 9-in. (228-mm) dimension of the test
3. Significance and Use
brick.
3.1 This classification establishes an orderly grouping of
insulating firebrick to provide group identifications for use by 6. Retests
those producing or purchasing these materials. The group
6.1 Because of variables resulting from sampling and the
identification number is not meant to specifically designate the
lack of satisfactory reproducibility in tests conducted by
maximum service temperature although the number times 100
different laboratories, the material may be resampled and
does approximate the temperature (in degrees Fahrenheit) to be
retested when requested by either the manufacturer or the
purchaser. This may apply in instances when the first test
This classification is under the jurisdiction of ASTM Committee C08 on results
...

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2.1 This test method provides a guide for evaluating the resistance of refractories in glass-melting furnace superstructures to vapor attack. This test method may also be useful for evaluating refractories in other applications where vapor attack occurs.  
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2.3 The degree of correlation between this test method and service performance is not fully determinable. This is intended to be an accelerated test method that generates a substantial degree of reaction in a relatively short amount of time. This acceleration may be accomplished by changing the composition and/or concentration of the reactants, increasing temperatures, or by performing the test in an isothermal environment.  
2.4 Since the test method may not accurately simulate the service environment, observed results of this test method may not be representative of those found in service. It is imperative that the user understand and consider how the results of this test method may differ from those encountered in service. This is particularly likely if the reaction products, their nature, or their degree differ from those normally found in the actual service environment.  
2.5 It is incumbent upon the user to understand that this is an aggressive, accelerated test method and to be careful in interpreting the results. If, for example, the reaction species have never been found in a real-world furnace, then this test method should not necessarily be considered valid to evaluate the refractory in question.
SCOPE
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