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
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:A597 −87(Reapproved2010)
StandardSpecification for
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
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
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 S
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