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ASTM A128/A128M-93(2003)

(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-Jan-2003
ICS
77.140.80 - Iron and steel castings
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.18 - Castings
Current Stage
Ref Project

Relations

Replaces
ASTM A128/A128M-93(1998) - Standard Specification for Steel Castings, Austenitic Manganese
Effective Date
10-Jan-2003
Replaced By
ASTM A128/A128M-93(2007) - Standard Specification for Steel Castings, Austenitic Manganese
Effective Date
01-Nov-2007
Referred By
ASTM A957/A957M-21 - Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Jan-2003
Referred By
ASTM G132-96(2018) - Standard Test Method for Pin Abrasion Testing
Effective Date
10-Jan-2003
Referred By
ASTM A781/A781M-21 - Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Effective Date
10-Jan-2003
Referred By
ASTM G81-97a(2018) - Standard Test Method for Jaw Crusher Gouging Abrasion Test
Effective Date
10-Jan-2003
Referred By
ASTM A488/A488M-18e2 - Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
Effective Date
10-Jan-2003

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ASTM A128/A128M-93(2003) - Standard Specification for Steel Castings, Austenitic ManganeseASTM A128/A128M-93(2003) - Standard Specification for Steel Castings, Austenitic Manganese
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ASTM A128/A128M-93(2003) - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2003)
Standard Specification for
Steel Castings, Austenitic Manganese
This standard is issued under the fixed designationA128/A128M; 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 4.1.2 Specification, grade,
4.1.3 Whetheranyportionofthecastingistobechilled,and
1.1 This specification covers Hadfield austenitic manganese
whether this is to be spot or full-face chilling,
steel castings and alloy modifications.
4.1.4 Special heat-treatment requirements, and
1.2 The values stated in either inch-pound units or SI units
4.1.5 Supplementary requirements.
are to be regarded separately as standard. Within the text, the
SI units are shown in brackets. The values stated in each
5. Heat Treatment
system are not exact equivalents; therefore, each system must
5.1 The castings shall be suitably heat treated to achieve
be used independently of the other. Combining values from the
toughness and ductility. This heat treatment shall consist of
two systems may result in nonconformance with the specifi-
uniformly heating the castings to a temperature applicable for
cation.
grade of steel produced, at least 1800°F [1000°C], and holding
2. Referenced Documents until the temperature is uniform throughout and quenching in
an applicable medium, normally water.
2.1 ASTM Standards:
5.2 By agreement between the purchaser and the manufac-
A 781/A 781M Specification for Castings, Steel and Alloy,
turer, castings may be furnished in a condition other than
Common Requirements for General Industrial Use
described in 5.1.
3. General Conditions for Delivery
6. Chemical Composition
3.1 Material furnished to this specification shall conform to
6.1 The steel shall conform to the requirements as to
the requirements of Specification A 781/A 781M, including
chemical composition prescribed in Table 1.
any supplementary requirements that are indicated in the
6.2 Contamination of the drillings by drill chips must be
purchase order. Failure to comply with the general require-
avoided. Flat drills of the best highspeed steels, or drills of
ments of Specification A 781/A 781M constitutes nonconfor-
some of the newer tool materials, will generally be satisfactory
mance with this specification. In case of conflict between the
for drilling manganese steel. Manganese steel may be drilled
requirements of this specification and Specification A 781/
best after it has been annealed for several hours at from 900 to
A 781M, this specification shall prevail.
1100°F [500 to 600°C].
4. Ordering Information
7. Repair by Welding
4.1 Orders for material under this specification should
7.1 Defects shall be welded using a procedure and welders
include the following information in proper sequence.
capable of producing sound welds. The weld deposit shall be
4.1.1 Quantity,
austenitic steel in general, but welds on wearing surfaces shall
consist of austenitic-manganese steel.
1 7.2 Weld repairs shall be inspected to the same quality
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
standards as are used to inspect the castings.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.18 on Castings.
Current edition approved April 10, 2003. Published April 2003. Originally
8. Keywords
approved in 1930. Last previous edition approved in 1998 as A 128/A 128M – 93
8.1 austenitic manganese steel; manganese steel; steel
(1998).
Annual Book of ASTM Standards, Vol 01.02. castings
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 128/A 128M – 93 (2003)
TABLE 1 Chemical Requirements
Composition, %
A
Grade
Carbon Manganese Chromium Molybdenum Nickel Silicon Phosphorus
B
A 1.05–1.35 11.0 min . . . 1.00 max 0.07 max
B-1 0.9 –1.05 11.5–14.0 . . . 1.00 max 0.07 max
B-2 1.05–1.2 11.5–14.0 . . . 1.00 max 0.07 max
B-3 1.12–1.28 11.5–14.0 .
...

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