ASTM C1547-02(2022)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:C1547 −02 (Reapproved 2022)
Standard Classification for
Fusion-Cast Refractory Blocks and Shapes
This standard is issued under the fixed designation C1547; 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.
combination of X-ray fluorescence (XRF) and inductively coupled plasma
1. Scope
(ICP) analyses using standard reference materials (SRM), including
1.1 Thisclassificationcoverscommercialfusion-castrefrac-
various types of minerals and refractory materials which are available
tory blocks and shapes. Its purpose is to set forth the various from the National Institute of Standards and Technology and other
appropriate sources.
types and classes of these materials according to their miner-
alogical compositions. These compositions are important to
3. Terminology
determining their suitability for use in specified applications.
3.1 For definitions of terms used in this classification, see
This standard is not intended to cover commercial fused grains
Terminology C71.
or beads.
1.2 The values stated in inch-pound units are to be regarded
4. Significance and Use
as standard. The values given in parentheses are mathematical
4.1 This classification categorizes the defined types of
conversions to SI units that are provided for information only
fused-cast refractory blocks and shapes into distinct classes
and are not considered standard.
basedonmineralogicalcomposition.Suchclasseshavehistori-
1.3 This standard does not purport to address all of the
cally been useful for relating the defined types and classes with
safety concerns, if any, associated with its use. It is the
specific industrial applications and for developing product or
responsibility of the user of this standard to establish appro-
purchasing specifications.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5. Basis of Classification
1.4 This international standard was developed in accor-
5.1 Fused alumina refractories are classified by the content
dance with internationally recognized principles on standard-
of soda, Na O, as determined by chemical analysis and the
ization established in the Decision on Principles for the
resulting beta- (β-) alumina (NaAl O ) or beta"-(β"-) alu-
11 17
Development of International Standards, Guides and Recom-
mina (NaMg Al O ) content as determined by quantitative
2 15 25
mendations issued by the World Trade Organization Technical
X-ray diffraction (XRD) or by quantitative image analysis of
Barriers to Trade (TBT) Committee.
representative polished sections.
NOTE 2—Differential rates of solidification at the surface and the
2. Referenced Documents
interior of fusion-cast shapes result in different grain sizes. Likewise, the
2.1 ASTM Standards: segregation of one or more components may occur during solidification.
Therefore, the most representative specimens are small, rapidly cooled
C71 Terminology Relating to Refractories
ladles or shapes (no dimension >3 in. (>75 mm)) obtained by casting into
2.2 Other Document:
metallic or graphite molds directly from the pouring stream of the fusion
“A Practical Guide for the Preparation of Specimens for
furnace.
X-Ray Fluorescence and X-Ray Diffraction Analysis,”
5.2 Fused alumina-zirconia-silica (AZS) and high-zirconia
Victor E. Buhrke, Ron Jenkins and Deane K. Smith, eds.,
refractory types are classified by the content of monoclinic
John Wiley & Sons, Inc., New York, 1998
zirconia (ZrO ) as determined by chemical analysis or quanti-
NOTE 1—Chemical analysis of refractory products is determined by a tative image analysis on representative polished sections.
5.3 Fused aluminosilicate refractories are classified by their
alumina-to-silica (Al O :SiO ) ratios as determined by chemi-
2 3 2
This classification is under the jurisdiction of ASTM Committee C08 on
cal analysis and by the amount of monoclinic zirconia present
Refractories and is the direct responsibility of Subcommittee C08.92 on The Joseph
E. Kopanda Subcommittee for Editorial, Terminology and Classification.
as determined by X-ray diffraction (XRD) or quantitative
Current edition approved Sept. 1, 2022. Published October 2022. Originally
image analysis.
approved in 2002. Last previous edition approved in 2018 as C1547 – 02 (2018).
DOI: 10.1520/C1547-02R22.
5.4 Fused chromium-containing refractories are classified
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
by the amount of chromia present by chemical analysis and by
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
its mineralogical form as determined by X-ray diffraction
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (XRD) or by quantitative image analysis.
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C1547−02 (2022)
TABLE 1 Classification of Fused Alumina Refractories by Soda TABLE 3 Classification of Fused Aluminosi
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