ASTM A582/A582M-21

Standard Specification for Free-Machining Stainless Steel Bars

ABSTRACT
This specification covers hot-finished or cold-finished bars, except bars for forging, suitable for machining processes. It includes rounds, squares, and hexagons in the more commonly used types of stainless free-machining steels designed especially for optimum machinability and for general corrosion and high-temperature service. Bars may be furnished either hot finished or cold finished in one of the conditions specified. Materials shall adhere to specified chemical composition requirements. At least one hardness testing shall be made midway between surface and center on each lot to determine that the material conforms to hardness requirements. Also, test methods and definition for hardness testing are presented.
SCOPE
1.1 This specification covers hot-finished or cold-finished bars, except bars for forging (Note 1), suitable for machining processes. It includes rounds, squares, and hexagons in the more commonly used types of stainless free-machining steels designed especially for optimum machinability and for general corrosion and high-temperature service. Stainless steel bars other than the free-machining types are covered in a separate specification (Note 2).  
1.2 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standard: within the text and tables, the SI units are shown in [brackets]. 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 specification.
Note 1: For bars for reforging, see Specification A314.  
Note 2: For non-free machining stainless bars, see Specification A276.  
1.3 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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2021
• ICS: 77.140.60 - Steel bars and rods
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.17 - Flat-Rolled and Wrought Stainless Steel

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: A582/A582M −21
Standard Specification for
1
Free-Machining Stainless Steel Bars
This standard is issued under the fixed designationA582/A582M; 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 U.S. Department of Defense.
1. Scope* A314 Specification for Stainless Steel Billets and Bars for
Forging
1.1 This specification covers hot-finished or cold-finished
A370 Test Methods and Definitions for Mechanical Testing
bars, except bars for forging (Note 1), suitable for machining
of Steel Products
processes. It includes rounds, squares, and hexagons in the
A484/A484M Specification for General Requirements for
more commonly used types of stainless free-machining steels
Stainless Steel Bars, Billets, and Forgings
designed especially for optimum machinability and for general
A751 Test Methods and Practices for Chemical Analysis of
corrosion and high-temperature service. Stainless steel bars
Steel Products
other than the free-machining types are covered in a separate
A959 Guide for Specifying Harmonized Standard Grade
specification (Note 2).
Compositions for Wrought Stainless Steels
1.2 This specification is expressed in both inch-pound units
E527 Practice for Numbering Metals and Alloys in the
and in SI units; however, unless the purchase order or contract
Unified Numbering System (UNS)
3
specifies the applicable M specification designation (SI units),
2.2 SAE Document:
the inch-pound units shall apply. The values stated in either
SAE J 1086 Recommended Practice for Numbering Metals
3
inch-pound units or SI (metric) units are to be regarded
and Alloys
separately as standard: within the text and tables, the SI units
are shown in [brackets]. The values stated in each system may 3. Ordering Information
not be exact equivalents: therefore, each system shall be used
3.1 It is the responsibility of the purchaser to specify all
independently of the other. Combining values from the two
requirements that are necessary for product ordered under this
systems may result in nonconformance with the specification.
specification. Such requirements to be considered include, but
are not limited to, the following:
NOTE 1—For bars for reforging, see Specification A314.
NOTE 2—For non-free machining stainless bars, see Specification
3.1.1 Quantity (weight or number of pieces),
A276.
3.1.2 Type (alloy) or UNS designation (Table 1),
1.3 This international standard was developed in accor-
3.1.3 Form (bars, angles, and so forth),
dance with internationally recognized principles on standard- 3.1.4 Condition (Table 2),
ization established in the Decision on Principles for the
3.1.5 Finish (5.1),
Development of International Standards, Guides and Recom- 3.1.6 Applicable dimensions, including size, thickness,
mendations issued by the World Trade Organization Technical
width, and length,
Barriers to Trade (TBT) Committee. 3.1.7 Cross section (round, square, and so forth),
3.1.8 ASTM designation (Specification A582/A582M) and
2. Referenced Documents
approval date,
2
3.1.9 Preparation for delivery, and
2.1 ASTM Standards:
3.1.10 Marking requirements.
A276 Specification for Stainless Steel Bars and Shapes
NOTE3—Atypicalorderingdescriptionisasfollows:5000lb[2000kg]
1
Type 416 bars, annealed and centerless ground, 1 ⁄2 in. [40 mm] round, 10
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
to 12 ft [3 to 4 m] in length, ASTM Specification A582/A582Mdated.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.17 on Flat-Rolled and Wrought Stainless Steel.
4. General Requirements
Current edition approved Nov. 1, 2021. Published November 2021. Originally
4.1 Product furnished to this specification shall conform to
approved in 1967. Last previous edition approved in 2017 as A582/
A582M – 12 (2017). DOI: 10.1520/A0582_A0582M-21.
the requirements of Specification A484/A484M, including any
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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A582/A582M − 21
TABLE 1 Chemical Requirements
Chemical Composition, %
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A582/A582M − 12 (Reapproved 2017) A582/A582M − 21
Standard Specification for
1
Free-Machining Stainless Steel Bars
This standard is issued under the fixed designation A582/A582M; 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 U.S. Department of Defense.
1. Scope Scope*
1.1 This specification covers hot-finished or cold-finished bars, except bars for forging (Note 1), suitable for machining processes.
It includes rounds, squares, and hexagons in the more commonly used types of stainless free-machining steels designed especially
for optimum machinability and for general corrosion and high-temperature service. Stainless steel bars other than the
free-machining types are covered in a separate specification (Note 2).
1.2 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract
specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either
inch-pound units or SI (metric) units are to be regarded separately as standard: within the text and tables, the SI units are shown
in [brackets]. 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 specification.
NOTE 1—For bars for reforging, see Specification A314.
NOTE 2—For non-free machining stainless bars, see Specification A276.
1.3 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A276 Specification for Stainless Steel Bars and Shapes
A314 Specification for Stainless Steel Billets and Bars for Forging
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
A751 Test Methods and Practices for Chemical Analysis of Steel Products
A959 Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3
2.2 SAE Document:
3
SAE J 1086 Recommended Practice for Numbering Metals and Alloys
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.17
on Flat-Rolled and Wrought Stainless Steel.
Current edition approved March 15, 2017Nov. 1, 2021. Published March 2017November 2021. Originally approved in 1967. Last previous edition approved in 20122017
ε1
as A582/A582M – 12 (2017). . DOI: 10.1520/A0582_A0582M-12R17.10.1520/A0582_A0582M-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A582/A582M − 21
3. Ordering Information
3.1 It is the responsibility of the purchaser to specify all requirements that are necessary for product ordered under this
specification. Such requirements to be considered include, but are not limited to, the following:
3.1.1 Quantity (weight or number of pieces),
3.1.2 Type (alloy) or UNS designation (Table 1),
3.1.3 Form (bars, angles, and so forth),
3.1.4 Condition (Table 2),
3.1.5 Finish (5.1),
TABLE 1 Chemical Requirements
Chemical Composition, %
UNS
B Other
Desig- Type
Manga- Phos- Silicon, Molyb- Selenium
C C
A Carbon Sulfur Chromium Nickel Elements
C C
nation
nese phorus, max denum
Austenitic
D
S20300 XM-1 0.08 5.0–6.5 0.04 0.18–0.35 1.00 16.00–18.0 5.0–6.5 . . . . . .
...