ASTM A582/A582M-22

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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 − 21 A582/A582M − 22
Standard Specification for
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*
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
2.1 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)
2.2 SAE Document:
SAE J 1086 Recommended Practice for Numbering Metals and Alloys
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 Nov. 1, 2021Nov. 1, 2022. Published November 2021November 2022. Originally approved in 1967. Last previous edition approved in 20172021
as A582/A582M – 12 (2017).A582/A582M – 21. DOI: 10.1520/A0582_A0582M-21.10.1520/A0582_A0582M-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 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 the ASTM website.
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
A582/A582M − 22
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),
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 . . . . . . Cu
1.75–2.25
S30300 303 0.15 2.00 0.20 0.15 1.00 17.0–19.0 8.0–10.0 . . . . . . . . .
min
D
S30310 XM-5 0.15 2.5–4.5 0.20 0.25 1.00 17.0–19.0 7.0–10.0 . . . . . . . . .
min
S30323 303Se 0.15 2.00 0.20 0.06 1.00 17.0–19.0 8.0–10.0 . . . 0.15 . . .
min
D
S30345 XM-2 0.15 2.00 0.05 0.11–0.16 1.00 17.0–19.0 8.0–10.0 0.40–0.60 . . . Al
0.60–1.00
S31621 . . . 0.03 2.00 0.04 0.10–0.20 1.00 16.5–18.5 10.0–13.0 2.00–2.50 . . . Cu
1.30–1.60
N
0.10
max
Martensitic
S41600 416 0.15 1.25 0.06 0.15 1.00 12.0–14.0 . . . . . . . . . . . .
min
D
S41610 XM-6 0.15 1.50–2.50 0.06 0.15 1.00 12.0–14.0 . . . . . . . . . . . .
min
S41623 416Se 0.15 1.25 0.06 0.06 1.00 12.0–14.0 . . . . . . 0.15 . . .
min
E
S42020 420F 0.30–0.40 1.25 0.06 0.15 1.00 12.0–14.0 0.50 . . . . . . Cu
E
min 0.60
E
S42023 420FSe 0.20–0.40 1.25 0.06 0.06 1.00 12.0–14.0 0.50 . . . 0.15 Cu
E
min 0.60
E
S44020 440F 0.95–1.20 1.25 0.06 0.15 1.00 16.0–18.0 0.50 . . . . . . Cu
E
min 0.60
E
S44023 440FSe 0.95–1.20 1.25 0.06 0.06 1.00 16.0–18.0 0.50 . . . 0.15 Cu
E
min 0.60
Ferritic
D
S18200 XM-34 0.08 2.50 0.04 0.15 1.00 17.5–19.5 . . . 1.50–2.50 . . . . . .
min
S18235 . . . 0.025 0.50 0.030 0.15–0.35 1.00 17.5–18.5 1.00 2.00–2.50 . . . Ti
0.30–1.00
N
0.025
C+N
0.035
S41603 . . . 0.08 1.25 0.06 0.15 1.00 12.0- . . . . . . . . . . . .
min 14.0
S43020 430F 0.12 1.25 0.06 0.15 1.00 16.0–18.0 . . . . . . . . . . . .
min
S43023 430FSe 0.12 1.25 0.06 0.06 1.00 16.0–18.0 . . . . . . 0.15 . . .
min
A
Designation established in accordance with Practice E527 and SAE J 1086, Recommended Practice for Numbering Metals and Alloys (UNS).
B
Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).
C
Maximum unless otherwise noted.
D
Naming system originated by ASTM.
E
At manufacturer’s opti
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