ASTM A564/A564M-19a
Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes

Standard No.

ASTM A564/A564M-19a

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A564/A564M-19a

Scope

1.1 This specification2 covers bars and shapes of agehardening stainless steels. Hot-finished or cold-finished rounds, squares, hexagons, bar shapes, angles, tees, and channels are included; these shapes may be produced by hot rolling, extruding, or forging. Billets or bars for reforging may be purchased to this specification. 1.2 These steels are generally used for parts requiring corrosion resistance and high strength at room temperature, or at temperatures up to 600 °F [315 °C]; 700 °F [370 °C] for Type 632; 840 °F [450 °C] for Type UNS S46910. They are suitable for machining in the solution-annealed condition after which they may be age-hardened to the mechanical properties specified in Section 7 without danger of cracking or distortion. Type XM-25 is machinable in the as-received fully heat treated condition. Type UNS S46910 is suitable for machining in the solution-annealed, cold-worked, and aged-hardened condition. 1.3 Types 631 and 632 contain a large amount of ferrite in the microstructure and can have low ductility in forgings and larger diameter bars. Applications should be limited to small diameter bar. 1.4 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards; within the text and tables, the SI units are shown in [brackets]. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other. Combining values from the two systems may result in nonconformance with the specification. 1.5 Unless the order specifies an “M” designation, the material shall be furnished to inch-pound units. NOTE 1—For forgings, see Specification A705/A705M. NOTE 2—For billets and bars for forging see Specification A314. 1.6 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.

ASTM A564/A564M-19a Referenced Document

• ASTM A314 Standard Specification for Stainless Steel Billets and Bars for Forging
• ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• ASTM A484/A484M Standard Specification for General Requirements for Stainless Steel Bars, Billets, Shapes, and Forgings*， 2024-01-01 Update
• ASTM A705/A705M Standard Specification for Age-Hardening Stainless Steel Forgings
• ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
• ASTM E527 Standard Practice for Numbering Metals and Alloys (UNS)
• SAE J1086 Numbering Metals and Alloys

ASTM A564/A564M-19a history

• 2019 ASTM A564/A564M-19a Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2019 ASTM A564/A564M-19 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2013 ASTM A564/A564M-13e1 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2013 ASTM A564/A564M-13 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2010 ASTM A564/A564M-10 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2004 ASTM A564/A564M-04(2009) Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2004 ASTM A564/A564M-04 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2002 ASTM A564/A564M-02a Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2002 ASTM A564/A564M-02 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2001 ASTM A564/A564M-01 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
• 2002 ASTM A564/A564M-99 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes