ASTM A473-13
(Specification)Standard Specification for Stainless Steel Forgings
Standard Specification for Stainless Steel Forgings
ABSTRACT
This specification covers austenitic, austenitic-ferritic, ferritic, and martensitic stainless steel forgings for general use, and for low- or high-temperature service. The different solution heat treatment and annealing treatment received by the steel material are presented in details. The steel shall conform to the specified chemical composition and room temperature mechanical requirements. The forgings shall be produced with prolongations for testing, unless otherwise specified. The number of and procedure for tension test for forgings depending on their weight are presented. The tension test specimens shall be taken from the test prolongations or from the forgings.
SCOPE
1.1 This specification covers austenitic, austenitic-ferritic, ferritic, and martensitic stainless steel forgings for general use, and for low- or high-temperature service.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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Designation:A473 −13
StandardSpecification for
1
Stainless Steel Forgings
This standard is issued under the fixed designation A473; 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* 3.1.6 ASTM designation and date of issue.
3.1.7 Test for magnetic permeability if specified by cus-
1.1 This specification covers austenitic, austenitic-ferritic,
tomer purchase order when ordering Types 207 and 205.
ferritic, and martensitic stainless steel forgings for general use,
3.1.8 Special requirements.
and for low- or high-temperature service.
3.2 If possible the intended end use of the item should be
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical givenonthepurchaseorderespeciallywhentheitemisordered
for a specific end use or uses.
conversions to SI units that are provided for information only
and are not considered standard.
NOTE 1—A typical ordering description is as follows: 5 stainless steel
forgings, Type 410, Designation A, ASTM Specification A473 dated
2. Referenced Documents
———. End use: pump blocks for oil well equipment.
2
2.1 ASTM Standards:
4. General Requirements
A314 Specification for Stainless Steel Billets and Bars for
Forging
4.1 In addition to the requirements of this specification, all
A370 Test Methods and Definitions for Mechanical Testing
requirements of the current edition of Specification A484/
of Steel Products
A484M shall apply. Failure to comply with the general
A484/A484M Specification for General Requirements for
requirements of Specification A484/A484M constitutes non-
Stainless Steel Bars, Billets, and Forgings
conformance with this specification.
A751 Test Methods, Practices, and Terminology for Chemi-
cal Analysis of Steel Products
5. Manufacture
E527 Practice for Numbering Metals and Alloys in the
5.1 Material for forgings shall consist of ingots or blooms,
Unified Numbering System (UNS)
billets, slabs, or bars, either forged or rolled from an ingot, and
cut to the required length by a suitable process. This material,
3. Ordering Information
except for ingots, may be specified to Specification A314.
3.1 It is the responsibility of the purchaser to specify all
requirements that are necessary for material ordered under this 5.2 The material shall be forged by hammering, pressing,
specification. Such requirements may include, but are not rolling, extruding, or upsetting. It shall be brought as nearly as
limited to, the following: possible to the finished shape and size by hot-working; and
3.1.1 Quantity (weight or number of pieces), shall be processed, if practicable, so as to cause metal-flow
3.1.2 Dimensions, including prints or sketches, during the hot-working operation in the direction most favor-
3.1.3 Name of material (stainless steel forgings), able for resisting the stresses encountered in service as may be
3.1.4 Type or UNS designation (Table 1), indicated to the manufacturer by the purchaser.
3.1.5 Condition (Table 2), and
5.3 When specified on the order, a sample forging may be
sectioned and etched to show flow lines and the condition as
regards internal imperfections. When so specified, the question
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
of acceptable and unacceptable metal-flow shall be subject to
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.06 on Steel Forgings and Billets.
agreement between the manufacturer and the purchaser prior to
Current edition approved Nov. 1, 2013. Published November 2013. Originally
order entry.
approved in 1962. Last previous edition approved in 2009 as A473 – 01 (2009).
DOI: 10.1520/A0473-13.
5.4 When specified on the order, the manufacturer shall
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
submit for approval of the purchaser a sketch showing the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
shape of the rough forging before machining, or before heat
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. treating for mechanical properties.
*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 ----------------------
A473−13
A
TABLE 1 Chemical Requirements
Phos-
UNS Type Manga- Other
Carbon, pho- Sulfur, Silicon, Chromium, Nickel, Molyb- Nitro-
Desig- Num- n
...
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: A473 − 01 (Reapproved 2009) A473 − 13
Standard Specification for
1
Stainless Steel Forgings
This standard is issued under the fixed designation A473; 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 Scope*
1.1 This specification covers austenitic, austenitic-ferritic, ferritic, and martensitic stainless steel forgings for general use, and
for low- or high-temperature service.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents
2
2.1 ASTM Standards:
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, Practices, and Terminology for Chemical Analysis of Steel Products
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. Ordering Information
3.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this
specification. Such requirements may include, but are not limited to, the following:
3.1.1 Quantity (weight or number of pieces),
3.1.2 Dimensions, including prints or sketches,
3.1.3 Name of material (stainless steel forgings),
3.1.4 Type or UNS designation (Table 1),
3.1.5 Condition (Table 2), and
3.1.6 ASTM designation and date of issue.
3.1.7 Test for magnetic permeability if specified by customer purchase order when ordering Types 207 and 205.
3.1.8 Special requirements.
3.2 If possible the intended end use of the item should be given on the purchase order especially when the item is ordered for
a specific end use or uses.
NOTE 1—A typical ordering description is as follows: 5 stainless steel forgings, Type 410, Designation A, ASTM Specification A473 dated ———.
End use: pump blocks for oil well equipment.
4. General Requirements
4.1 In addition to the requirements of this specification, all requirements of the current edition of Specification A484/A484M
shall apply. Failure to comply with the general requirements of Specification A484/A484M constitutes nonconformance with this
specification.
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 May 1, 2009Nov. 1, 2013. Published May 2009 November 2013. Originally approved in 1962. Last previous edition approved in 20012009 as
A473 – 01.A473 – 01 (2009). DOI: 10.1520/A0473-01R09.10.1520/A0473-13.
2
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.
*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 ----------------------
A473 − 13
A
TABLE 1 Chemical Requirements
Phos-
UNS Type Manga- Other
Carbon, pho- Sulfur, Silicon, Chromium, Nickel, Molyb- Nitro-
Desig- Num- nese, Elements,
% rus, % % % % denum, % gen, %
B
nation ber % %
%
Austenitic Grades
S20100 201 0.15 5.5–7.5 0.060 0.030 1.00 16.0–18.0 3.5–5.5 . . . 0.25
S20200 202 0.15 7.5–10.0 0.060 0.030 1.00 17.0–19.0 4.0–6.0 . . . 0.25
S20500 205 0.12–0.25 14.0–15.5 0.060 0.030 1.00 16.5–18.0 1.00–1.75 . . . 0.32–0.40
S21900 XM-10 0.08 8.0–10.0 0.060 0.030 1.00 19.0–21.5 5.5–7.5 . . . 0.15–0.40
S21904 XM-11 0.04 8.0–10.0 0.060 0.030 1.00 19.0–21.5 5.5–7.5 . . . 0.15–0.40
S28200 . . . 0.15 17.0–19.0 0.045 0.030 1.00 17.0–19.0 . . . 0.75–1.25 0.40–0.60 Cu 0.75–1.25
S30200 302 0.15 2.00 0.045 0.030 1.00 17.0–19.0 8.0–10.0 . . . 0.10
S30215 302B 0.15 2.00 0.045 0.030 2.00–3.00 17.0–19.0 8.0–10.0 . . . . . .
C
S30300 303 0.15 2.00 0.20 0.15 min 1.00 17.0–19.0 8.0–10.0 0.60 . . .
S30323 303 Se 0.15 2.00 0.20 0.06 1.00 17.0–19.0
...
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