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ASTM A597-87(2010)

(Specification)

Standard Specification for Cast Tool Steel

Standard Specification for Cast Tool Steel

ABSTRACT
This specification covers tool steel compositions appropriate for usable shapes cast by pouring directly into suitable molds and for master heats for remelting and casting. Grades of the tool steel covered in this specification include air- and oil-hardening grades such as CA-2, CD-2, CD-5, CM-2, CS-5, CS-7, CH-12, CH-13, and CO-1. The steel shall be made by one or more of the following processes: electric-arc furnace or induction furnace and may be argon-oxygen decarburization refined. Each of the steel shall undergo chemical analysis and shall conform to the chemical composition specification for carbon, manganese, silicon, sulfur, phosphorus, chromium, molybdenum, vanadium, cobalt, tungsten, and nickel. Material shall be packed and marked with heat or lot number, specification number, steel type, and form to ensure safe delivery and proper identification.
SCOPE
1.1 This specification covers tool steel compositions for usable shapes cast by pouring directly into suitable molds and for master heats for remelting and casting.
Note 1—A master heat is defined as any single heat of steel of certified analysis which has been processed into suitable form (shot, ingot, etc.) for remelting. A uniform blend of master heats is also acceptable for remelting. This blend is defined as a master heat lot and its average chemical composition shall be certified.  
1.2 Nine grades, CA-2, CD-2, CD-5, CM-2, CS-5, CS-7, CH-12, CH-13, and CO-1, are covered in this specification.
Note 2—The committee formulating this specification has included air- and oil-hardening grades of tool steel that have been extensively used. Other compositions will be considered for inclusion as the need arises.

General Information

Status
Historical
Publication Date
30-Sep-2010
ICS
77.140.80 - Iron and steel castings
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.29 - Tool Steels
Current Stage
Ref Project

Relations

Replaces
ASTM A597-87(2004) - Standard Specification for Cast Tool Steel
Effective Date
01-Oct-2010
Replaced By
ASTM A597/A597M-14 - Standard Specification for Cast Tool Steel
Effective Date
01-Oct-2014

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ASTM A597-87(2010) - Standard Specification for Cast Tool Steel
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Standards Content (Sample)

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:A597 −87(Reapproved2010)
StandardSpecification for
1
Cast Tool Steel
This standard is issued under the fixed designation A597; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Materials and Manufacture
1.1 This specification covers tool steel compositions for 4.1 The steel shall be made by one or more of the following
usable shapes cast by pouring directly into suitable molds and processes: Electric-arc furnace or induction furnace and may
for master heats for remelting and casting. be argon-oxygen decarburization (AOD) refined. The steel can
be remelted in air, vacuum, or inert atmosphere.
NOTE 1—Amaster heat is defined as any single heat of steel of certified
analysis which has been processed into suitable form (shot, ingot, etc.) for
5. Chemical Requirements
remelting. A uniform blend of master heats is also acceptable for
remelting. This blend is defined as a master heat lot and its average
5.1 Achemicalanalysisofeachheatofsteel(seeNote1)for
chemical composition shall be certified.
master heats and for usable cast shapes shall be made by the
1.2 Nine grades, CA-2, CD-2, CD-5, CM-2, CS-5, CS-7, manufacturer in accordance with Test Methods A751. Sam-
CH-12, CH-13, and CO-1, are covered in this specification. pling shall be in accordance with Method E59. The chemical
composition thus determined shall not vary from the limits
NOTE2—Thecommitteeformulatingthisspecificationhasincludedair-
specified in Table 1.
and oil-hardening grades of tool steel that have been extensively used.
Other compositions will be considered for inclusion as the need arises.
6. Inspection
2. Referenced Documents 6.1 When specified in the purchase order, the inspector
2 representing the purchaser shall have access to the material
2.1 ASTM Standards:
subjecttoinspectionforthepurposeofwitnessingtheselection
A751 Test Methods, Practices, and Terminology for Chemi-
of samples and performance of the analytical tests. For such
cal Analysis of Steel Products
tests, the inspector shall have the right to indicate the pieces
E59 Practice for Sampling Steel and Iron for Determination
3
from which samples will be selected. Otherwise, the manufac-
of Chemical Composition (Withdrawn 1996)
turer shall report to the purchaser, or his representative, the
results of the chemical analysis made in accordance with this
3. Ordering Information
specification.
3.1 Purchase orders shall include the following information
7. Rejection and Rehearing
to describe the desired material:
3.1.1 ASTM specification number and date of issue,
7.1 Rejection—Unless otherwise specified, any rejection
3.1.2 Name of material (cast tool steel),
based on tests made in accordance with this specification shall
3.1.3 Grade (see Table 1),
bereportedtothemanufacturerwithin30daysfromthedateof
3.1.4 Form (shot, ingot, or shaped castings), and
receipt of the material.
3.1.5 Special requirements.
7.2 Rehearing—Samples tested in accordance with this
specification that represent rejected material shall be preserved
for three weeks from the date of the test report. In case of
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
dissatisfaction with the results of the test, the manufacturer
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
may make claim for a rehearing within that time.
A01.29 on Tool Steels.
Current edition approved Oct. 1, 2010. Published December 2010. Originally
8. Packaging and Package Marking
published as A597 – 69. Last previous edition A597 – 87 (2004). DOI: 10.1520/
A0597-87R10.
8.1 Packaging—Material shall be packed in such a manner
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
as to ensure safe delivery when properly transported by any
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 common carrier.
the ASTM website.
3
8.2 Package Marking—Material from each heat shall be
The last approved version of this historical standard is referenced on
www.astm.org. marked with heat or lot number, specification number (ASTM
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A597−87(Reapproved2010)
TABLE 1 Chemical Requirements
Element Composition, %
CA-2 CD-2 CD-5 CS-5 CM-2
Carbon 0.95–1.05 1.40–1.60 1.35–1.60 0.50–0.65 0.78–0.88
Manganese 0.75 max 1.00 max 0.75 max 0
...

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This specification covers iron-base, heat-resisting alloy castings, intended for structural elements, containers, and supports in electric furnaces, petroleum still tube supports, and for similar applications. The alloys shall be electric-furnace processed and heat treated. The castings shall conform to the required chemical compositions of nickel, chromium, carbon, nitrogen, manganese, silicon, phosphorus, sulfur, and iron. The specimens shall undergo tension test after aging and short-time high-temperature tension test and shall conform to the required values of tensile strength and elongation. A stress-rupture test shall also be performed wherein the specimens shall conform to the required values of tensile stress. The specimen shall also conform to the required values of magnetic permeability.
SCOPE
1.1 This specification covers iron-base, heat-resisting alloy castings of the 25 % chromium, 12 % nickel class, intended for structural elements, containers, and supports in electric furnaces, petroleum still tube supports, and for similar applications up to 2000 °F [1095 °C].  
1.2 In the absence of significant proportions of elements other than those prescribed in Section 5, the two types of alloys covered by this specification may in general be distinguished as follows:  
1.2.1 Type I—Alloys characterized by relatively low limiting creep stress at temperatures between 1500 and 2000 °F [815 and 1095 °C], and relatively high ductility at ordinary temperatures after aging for short periods at temperatures between 1300 and 1500 °F [705 and 815 °C].  
1.2.2 Type II—Alloys having relatively high limiting creep stress but which may develop low ductility at ordinary temperatures when aged for short periods at temperatures between 1350 and 1500 °F [730 and 815 °C].  
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.  
1.3.1 Within the text, the SI units are shown in brackets.  
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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