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ASTM A597/A597M-14(2024)

Standard Specification for Cast Tool Steel
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ASTM A597/A597M-14(2024)

Standard Specification for Cast Tool Steel

PUBLISH DATE 2024
PAGES 2
ASTM A597/A597M-14(2024)

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.

1.1 This specification covers tool steel castings having chemical compositions similar to those of the standard wrought grades.

1.2 Several grades are covered and are designated by chemical composition shown in Table 1.

</
Composition, %
Grade CS-7 CH-12 CH-13 CD-51
Element UNS T91907
Carbon 0.45–0.55 0.30–0.40 0.30–0.42 0.85–1.00
Manganese 0.40–0.80 0.75 max 0.75 max 1.00–1.30
Silicon 0.60–1.00 1.50 max 1.50 max 1.50 max
Sulfur 0.03 max 0.03 max 0.03 max 0.03 max
Phosphorus 0.03 max 0.03 max 0.03 max 0.03 max
Chromium 3.00–3.50 4.75–5.75 4.75–5.75 0.40–1.00
Molybdenum 1.20–1.60 1.25–1.75 1.25–1.75 ...
Vanadium ... 0.20–0.50 0.75–1.20 0.30 max
Cobalt ... ... ... ...
SDO ASTM: ASTM International
Document Number A597
Publication Date Aug. 15, 2024
Language en - English
Page Count 2
Revision Level 14(2024)
Supercedes
Committee A01.29
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