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ASTM A220/A220M-99(2004)

(Specification)

Standard Specification for Pearlitic Malleable Iron

Standard Specification for Pearlitic Malleable Iron

ABSTRACT
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.
SCOPE
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 Sommer and by Pearson.
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 inch-pound units or SI units are to be regarded separately as standard. Within the test, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

General Information

Status
Historical
Publication Date
30-Sep-2004
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 A220/A220M-99 - Standard Specification for Pearlitic Malleable Iron
Effective Date
01-Oct-2004
Replaced By
ASTM A220/A220M-99(2009) - Standard Specification for Pearlitic Malleable Iron
Effective Date
01-May-2009
Referred By
ASTM F432-19 - Standard Specification for Roof and Rock Bolts and Accessories
Effective Date
01-Oct-2004
Referred By
ASTM A834-95(2020) - Standard Specification for Common Requirements for Iron Castings for General Industrial Use
Effective Date
01-Oct-2004

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ASTM A220/A220M-99(2004) - Standard Specification for Pearlitic Malleable IronASTM A220/A220M-99(2004) - Standard Specification for Pearlitic Malleable Iron
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ASTM A220/A220M-99(2004) - Standard Specification for Pearlitic Malleable Iron
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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: A 220/A 220M – 99 (Reapproved 2004)
Standard Specification for
1
Pearlitic Malleable Iron
This standard is issued under the fixed designationA 220/A 220M; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E 10 Test Method for Brinell Hardness of Metallic Materi-
als
1.1 This specification covers pearlitic malleable iron cast-
E 18 Test Methods for Rockwell Hardness and Rockwell
ingsforgeneralengineeringusageattemperaturesfromnormal
Superficial Hardness of Metallic Materials
ambient to approximately 750°F [400°C].
E 140 Hardness Conversion Tables for Metals Relationship
1.1.1 For continuous service at temperatures up to 1200°F
Among Brinell Hardness, Vickers Hardness, Rockwell
[650°C] design factors should be incorporated to compensate
Hardness, Superficial Hardness, Knoop Hardness, and
for possible property changes, as demonstrated by Marshall
2 3 Scleroscope Hardness
and Sommer and by Pearson.
6
2.2 Military Standard:
1.2 Without knowledge of casting geometry and process
MIL-STD-129 Marking for Shipment and Storage
details, no quantitative relationship can be stated between the
6
2.3 Federal Standard:
properties of the iron in the various locations of a casting and
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
those of a test bar cast from the same iron.
1.3 The values stated in either inch-pound units or SI units
3. Terminology
aretoberegardedseparatelyasstandard.Withinthetest,theSI
3.1 Definitions:
units are shown in brackets. The values stated in each system
3.1.1 Definitions for many terms common to iron castings
are not exact equivalents; therefore, each system shall be used
are found in Terminology A 644.
independently of the other. Combining values from the two
systems may result in nonconformance with the specification.
4. Classification
4.1 Iron produced for castings ordered under this specifica-
2. Referenced Documents
4 tion is classified in a number of grades as shown inTable 1 and
2.1 ASTM Standards:
5 is qualified by tests on separately cast test bars. Separately cast
A 220M Specification for Pearlitic Malleable Iron (Metric)
test bars shall be poured from the same lot of iron as the
A 247 Test Method for Evaluating the Microstructure of
castings they represent and shall be heat treated with those
Graphite in Iron Castings
castings.
A 644 Terminology Relating to Iron Castings
E 8 Test Methods for Tension Testing of Metallic Materials
5. Ordering Information
5.1 The purchase order for castings ordered under this
1
specification shall state the specification designation, the year
This specification is under the jurisdiction of ASTM Committee A04 on Iron
Castings and is the direct responsibility of SubcommitteeA04.02 on Malleable and in which the specification was issued, and the grade of pearlitic
Ductile Iron Castings.
malleable iron to be supplied.
Current edition approved Oct. 1, 2004. Published October 2004. Originally
5.2 Any options or special additions to the basic require-
approved in 1968. Last previous edition approved in 1999 as A 220/A 220M – 99.
2
ments of this specification shall be clearly and fully stipulated.
Marshall, L. C., and Sommer, G. F., “Stress-Rupture Properties of Malleable
Iron at Elevated Temperatures,” Proceedings, American Society of Testing and
Materials, Vol 58, pp. 752–773. 6. Chemical Composition
3
Pearson, D.A., “Stress-Rupture and Elongation Properties of Malleable Iron at
6.1 The chemical composition of the iron shall be such as to
ElevatedTemperatures,” Transactions,70thCastingsCongressandExposition,May
produce the mechanical properties required by this specifica-
9, 1966.
4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tion.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
6
the ASTM website. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
5
Withdrawn. Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 220/A 220M – 99 (2004)
TABLE 1 Tensile Test Requirements
Inch-Pound Grades
Tensile Strength, Yield Strength, min Elongation, mn
English
min
Grade
psi psi 2 in., %
40010 60 000 40 000 10
45008 65 000 45 000 8
45006 65 000 45 000 6
50005 70 000 50 000 5
60004 80 000 60 000 4
70003 85 000 70 000 3
80002 95 000 80 000 2
90001 10
...

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ASTM A220/A220M-99(2022)e1(Specification)
Standard Specification for Pearlitic Malleable Iron

ABSTRACT
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.
SCOPE
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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