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ASTM A47/A47M-99(2014)

(Specification)

Standard Specification for Ferritic Malleable Iron Castings

Standard Specification for Ferritic Malleable Iron Castings

ABSTRACT
This specification covers ferritic malleable castings for general engineering usage. The castings are classified as Grade 32510. The chemical composition of the iron shall be such as to produce the structural and mechanical properties required by this specification. Tension test may be machined from the standard cast bar to the required dimensions. The microstructure of the malleable iron shall consist of temper carbon nodules distributed through ferritic matrix and shall be free of excessive pearlite, massive carbides, and primary graphite. All castings, on visual examination, shall be sound and free of obvious shrinkage and porosity. The castings shall conform to the dimensions given by this specification.
SCOPE
1.1 This specification2 covers ferritic malleable castings for general engineering usage at temperatures from normal ambient to approximately 400°C (750°F).  
1.2 No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting and those of a test specimen cast from the same iron (see Appendix X1).  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

General Information

Status
Historical
Publication Date
31-Mar-2014
ICS
77.140.80 - Iron and steel castings
Technical Committee
A04 - Iron Castings
Drafting Committee
A04.02 - Malleable and Ductile Iron Castings
Current Stage
Ref Project

Relations

Replaces
ASTM A47/A47M-99(2009) - Standard Specification for Ferritic Malleable Iron Castings
Effective Date
01-Apr-2014
Referred By
ASTM A834-95(2020) - Standard Specification for Common Requirements for Iron Castings for General Industrial Use
Effective Date
01-Apr-2014
Referred By
ASTM A338-84(2022) - Standard Specification for Malleable Iron Flanges, Pipe Fittings, and Valve Parts for Railroad, Marine, and Other Heavy-Duty Service at Temperatures Up to 650 °F (345 °C)
Effective Date
01-Apr-2014
Referred By
ASTM F1476-07(2019) - Standard Specification for Performance of Gasketed Mechanical Couplings for Use in Piping Applications
Effective Date
01-Apr-2014
Referred By
ASTM F1548-01(2023) - Standard Specification for Performance of Fittings for Use with Gasketed Mechanical Couplings Used in Piping Applications
Effective Date
01-Apr-2014
Referred By
ASTM D5933-19 - Standard Specification for 2<fraction><num>5</num><den>8</den></fraction>-in. and 4-in. Diameter Metal Shear Plates for Use in Wood Constructions
Effective Date
01-Apr-2014
Referred By
ASTM F432-19 - Standard Specification for Roof and Rock Bolts and Accessories
Effective Date
01-Apr-2014

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ASTM A47/A47M-99(2014) - Standard Specification for Ferritic Malleable Iron CastingsASTM A47/A47M-99(2014) - Standard Specification for Ferritic Malleable Iron Castings
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ASTM A47/A47M-99(2014) - Standard Specification for Ferritic Malleable Iron Castings
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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:A47/A47M −99 (Reapproved 2014)
Standard Specification for
1
Ferritic Malleable Iron Castings
This standard is issued under the fixed designation A47/A47M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
4
1. Scope 2.2 Military Standard:
2 MIL-STD-129Marking for Shipment and Storage
1.1 This specification covers ferritic malleable castings for
4
2.3 Federal Standard:
general engineering usage at temperatures from normal ambi-
Fed. Std. No. 123Marking for Domestic Shipment (Civilian
ent to approximately 400°C (750°F).
Agencies)
1.2 No precise quantitative relationship can be stated be-
3. Terminology
tweenthepropertiesoftheironinvariouslocationsofthesame
casting and those of a test specimen cast from the same iron
3.1 Definitions—Definitions for many terms common to
(see Appendix X1).
iron are found in Terminology A644.
1.3 The values stated in either SI units or inch-pound units
4. Classification
are to be regarded separately as standard. The values stated in
4.1 Castings ordered and produced under this specification
each system may not be exact equivalents; therefore, each
are classified under the following grades based on tests on
system shall be used independently of the other. Combining
separately cast test bars. Separately cast test bars shall be
values from the two systems may result in non-conformance
poured from the same lot of iron as the castings they represent
with the standard.
andshallbeheattreatedwiththosecastingsexceptasprovided
in 7.2.3.
2. Referenced Documents
4.1.1 Grade 32510 [Grade 22010]:
3
2.1 ASTM Standards:
4.1.1.1 The first three digits of the grade designation indi-
A153/A153MSpecification for Zinc Coating (Hot-Dip) on
cate the minimum yield strength (×100 psi [MPa]) and the last
Iron and Steel Hardware
two digits indicate the minimum elongation (% in 2 in. [50
A247Test Method for Evaluating the Microstructure of
mm]).
Graphite in Iron Castings
A644Terminology Relating to Iron Castings 5. Ordering Information
E8Test Methods for Tension Testing of Metallic Materials
5.1 The purchase order for castings ordered under this
E10Test Method for Brinell Hardness of Metallic Materials
specification shall state the specification designation, the year
E18Test Methods for Rockwell Hardness of Metallic Ma-
in which the specification was issued, and the grade of
terials
malleable iron to be supplied. Any option or special additions
E140Hardness Conversion Tables for Metals Relationship
to the basic requirements of this specification shall be clearly
Among Brinell Hardness, Vickers Hardness, Rockwell
and fully stipulated.
Hardness, Superficial Hardness, Knoop Hardness, Sclero-
6. Chemical Composition
scope Hardness, and Leeb Hardness
6.1 Thechemicalcompositionoftheironshallbesuchasto
produce the structural and mechanical properties required by
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron
this specification.
Castings and is the direct responsibility of Subcommittee A04.02 on Malleable and
Ductile Iron Castings.
7. Mechanical Properties
Current edition approved April 1, 2014. Published April 2014. Originally
7.1 Factors influencing the properties of castings and their
approved in 1984. Last previous edition approved in 2009 as A47/A47M–99
(2009). DOI: 10.1520/A0047_A0047M-99R14.
relationship to those of test specimens and separate test
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
castings are discussed in Appendix X1.
cation SA-47 in Section II of that code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
the ASTM website. dodssp.daps.dla.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A47/A47M−99 (2014)
7.2 Tension Test Specimens:
7.2.1 The tension test specimens shall be cast to the form
and dimensions shown in Fig. 1 or Fig. 2, in the same kind of
molding material used for the production castings. At least
three such specimens shall be cast from a representative ladle
of iron either from each batch-melted heat or, in continuous
melting, from each 4-h pour period during which the purchas-
er’s castings wer
...

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1.1 This specification covers ductile iron castings suitable for service at temperatures of −40 °F [–40 °C] and above.  
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This specification covers pearlitic malleable iron castings for general. The chemical composition of the iron shall be such as to produce the mechanical properties required by this specification. Hardness test and tensile test shall be made to conform to the requirements specified. The microstructure of the pearlitic malleable iron shall consist of temper carbon nodules uniformly distributed in a matrix of ferrite, pearlite, and tempered transformation products of austenite. All castings on visual examination, shall be sound and free from obvious shrinkage and porosity.
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1.1 This specification covers pearlitic malleable iron castings for general engineering usage at temperatures from normal ambient to approximately 750 °F [400 °C].  
1.1.1 For continuous service at temperatures up to 1200 °F [650 °C], design factors should be incorporated to compensate for possible property changes, as demonstrated by Marshall and Sommer2 and by Pearson.3  
1.2 Without knowledge of casting geometry and process details, no quantitative relationship can be stated between the properties of the iron in the various locations of a casting and those of a test bar cast from the same iron.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.4 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.

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