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ASTM A128/A128M-93(1998)

(Specification)

Standard Specification for Steel Castings, Austenitic Manganese

Standard Specification for Steel Castings, Austenitic Manganese

SCOPE
1.1 This specification covers Hadfield austenitic manganese steel castings and alloy modifications.  
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must 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
09-May-1998
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.18 - Castings
Current Stage
Ref Project

Relations

Replaced By
ASTM A128/A128M-93(2003) - Standard Specification for Steel Castings, Austenitic Manganese
Effective Date
10-Jan-2003

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ASTM A128/A128M-93(1998) - Standard Specification for Steel Castings, Austenitic ManganeseASTM A128/A128M-93(1998) - Standard Specification for Steel Castings, Austenitic Manganese
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ASTM A128/A128M-93(1998) - Standard Specification for Steel Castings, Austenitic Manganese
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 128/A 128M – 93 (Reapproved 1998) An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Steel Castings, Austenitic Manganese
This standard is issued under the fixed designation A 128/A 128M; 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.
1. Scope whether this is to be spot or full-face chilling,
4.1.4 Special heat-treatment requirements, and
1.1 This specification covers Hadfield austenitic manganese
4.1.5 Supplementary requirements.
steel castings and alloy modifications.
1.2 The values stated in either inch-pound units or SI units
5. Heat Treatment
are to be regarded separately as standard. Within the text, the
5.1 The castings shall be suitably heat treated to achieve
SI units are shown in brackets. The values stated in each
toughness and ductility. This heat treatment shall consist of
system are not exact equivalents; therefore, each system must
uniformly heating the castings to a temperature applicable for
be used independently of the other. Combining values from the
grade of steel produced, at least 1800°F [1000°C], and holding
two systems may result in nonconformance with the specifi-
until the temperature is uniform throughout and quenching in
cation.
an applicable medium, normally water.
2. Referenced Documents 5.2 By agreement between the purchaser and the manufac-
turer, castings may be furnished in a condition other than
2.1 ASTM Standards:
described in 5.1.
A 781/A781M Specification for Castings, Steel and Alloy,
Common Requirements for General Industrial Use
6. Chemical Composition
3. General Conditions for Delivery 6.1 The steel shall conform to the requirements as to
chemical composition prescribed in Table 1.
3.1 Material furnished to this specification shall conform to
6.2 Contamination of the drillings by drill chips must be
the requirements of Specification A 781/A 781M, including
avoided. Flat drills of the best highspeed steels, or drills of
any supplementary requirements that are indicated in the
some of the newer tool materials, will generally be satisfactory
purchase order. Failure to comply with the general require-
for drilling manganese steel. Manganese steel may be drilled
ments of Specification A 781/A 781M constitutes nonconfor-
best after it has been annealed for several hours at from 900 to
mance with this specification. In case of conflict between the
1100°F [500 to 600°C].
requirements of this specification and Specification A 781/
A 781M, this specification shall prevail.
7. Repair by Welding
4. Ordering Information 7.1 Defects shall be welded using a procedure and welders
capable of producing sound welds. The weld deposit shall be
4.1 Orders for material under this specification should
austenitic steel in general, but welds on wearing surfaces shall
include the following information in proper sequence.
consist of austenitic-manganese steel.
4.1.1 Quantity,
7.2 Weld repairs shall be inspected to the same quality
4.1.2 Specification, grade,
standards as are used to inspect the castings.
4.1.3 Whether any portion of the casting is to be chilled, and
8. Keywords
This specification is under the jurisdiction of ASTM Committee A-1 on Steel, 8.1 austenitic manganese steel; manganese steel; steel cast-
Stainless Steel and Related Alloys, and is the direct responsibility of Subcommittee
ings
A01.18 on Castings.
Current edition approved Dec. 15, 1993. Published April 1994. Originally
published as A 128 – 30 T. Last previous edition A 128/A 128M – 90.
Annual Book of ASTM Standards, Vol 01.02.
NOTICE:¬This¬standard¬has¬either¬been¬superceded¬and¬replaced¬by¬a¬new¬version¬or¬discontinued.¬
Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
A 128/A 128M
TABLE 1 Chemical Requirements
Composition, %
A
Grade
Carbon Manganese Chromium
...

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