ASTM A632-19
(Specification)Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
ABSTRACT
The specification covers grades of stainless steel tubing for general corrosion-resisting and low or high-temperature service. The tubes shall be cold finished and shall be made by the seamless or welded process. All material shall be furnished in the heat-treated condition. The heat-treatment procedure shall consist of heating the material and quenching in water or rapidly cooling by other means. Tension tests, flaring tests, hydrostatic tests, air underwater pressure tests, and nondestructive electric tests shall be performed in accordance to the specified requirements.
SCOPE
1.1 This specification covers grades of stainless steel tubing in sizes under 1/2 down to 0.050 in. (12.7 to 1.27 mm) in outside diameter and wall thicknesses less than 0.065 in. down to 0.005 in. (1.65 to 0.13 mm) for general corrosion-resisting and low- or high-temperature service, as designated in Table 1.
Note 1: The grades of austenitic stainless steel tubing furnished in accordance with this specification have been found suitable for low-temperature service down to −325°F (−200°C) in which Charpy notched-bar impact values of 15 ft·lbf (20 J), minimum, are required and these grades need not be impact tested.
1.2 Optional supplementary requirements are provided and, when desired, shall be so stated in the order.
1.3 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.
1.4 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.
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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.
Designation:A632 −19
Standard Specification for
Seamless and Welded Austenitic Stainless Steel Tubing
1
(Small-Diameter) for General Service
This standard is issued under the fixed designation A632; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E165/E165MPractice for Liquid Penetrant Testing for Gen-
eral Industry
1.1 This specification covers grades of stainless steel tubing
E527Practice for Numbering Metals and Alloys in the
1
insizesunder ⁄2downto0.050in.(12.7to1.27mm)inoutside
Unified Numbering System (UNS)
diameterandwallthicknesseslessthan0.065in.downto0.005
2.2 SAE Standard:
in. (1.65 to 0.13 mm) for general corrosion-resisting and low-
SAE J1086Practice for Numbering Metals and Alloys
or high-temperature service, as designated in Table 1.
3
(UNS)
NOTE 1—The grades of austenitic stainless steel tubing furnished in
accordance with this specification have been found suitable for low-
3. Ordering Information
temperature service down to −325°F (−200°C) in which Charpy notched-
3.1 Orders for product under this specification should in-
bar impact values of 15 ft·lbf (20 J), minimum, are required and these
grades need not be impact tested. clude the following, as required, to describe the desired
material adequately:
1.2 Optional supplementary requirements are provided and,
3.1.1 Quantity (feet or number of lengths),
when desired, shall be so stated in the order.
3.1.2 Name of product (seamless or welded tubes),
1.3 The values stated in inch-pound units are to be regarded
3.1.3 Grade (see Table 1),
as standard. The values given in parentheses are mathematical
3.1.4 Size (only two of the following: outside diameter,
conversions to SI units that are provided for information only
inside diameter, and average wall),
and are not considered standard.
3.1.5 Length (specific or random),
1.4 This international standard was developed in accor-
3.1.6 Optional requirements (check analysis, see Section 7;
dance with internationally recognized principles on standard-
hydrostatic, air underwater pressure test, or nondestructive
ization established in the Decision on Principles for the
electric test, see Section 13),
Development of International Standards, Guides and Recom-
3.1.7 Test report required,
mendations issued by the World Trade Organization Technical
3.1.8 Specification designation, and
Barriers to Trade (TBT) Committee.
3.1.9 Special requirements or any supplementary require-
ments selected, or both.
2. Referenced Documents
2
2.1 ASTM Standards: 4. General Requirements
A262Practices for Detecting Susceptibility to Intergranular
4.1 Tubing furnished under this specification shall conform
Attack in Austenitic Stainless Steels
to the applicable requirements of the current edition of Speci-
A380/A380MPractice for Cleaning, Descaling, and Passi-
fication A1016/A1016M, unless otherwise provided herein.
vation of Stainless Steel Parts, Equipment, and Systems
A1016/A1016MSpecification for General Requirements for
5. Manufacture
Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
5.1 Manufacture—Thetubesshallbecoldfinishedandshall
Steel Tubes
be made by the seamless or welded process.
1 5.2 Heat Treatment—All material shall be furnished in the
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee heat-treated condition. The heat-treatment procedure shall
A01.10 on Stainless and Alloy Steel Tubular Products.
consist of heating the material to a minimum temperature of
Current edition approved Sept. 1, 2019. Published September 2019. Originally
1900°F(1040°C)andquenchinginwaterorrapidlycoolingby
approved in 1969. Last previous edition approved in 2014 as A632–04 (2014).
other means.
DOI: 10.1520/A0632-19.
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
3
Standards volume information, refer to the standard’s Document Summary page on AvailablefromSAEInternational(SAE),400CommonwealthDr.,Warrendale,
the ASTM website. PA 15096-0001, http://www.sae.org.
*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 ----------------------
A632−19
B
TABLE 1 Chemical Requirements
Composition, %
Grade TP 304
...
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: A632 − 04 (Reapproved 2014) A632 − 19
Standard Specification for
Seamless and Welded Austenitic Stainless Steel Tubing
1
(Small-Diameter) for General Service
This standard is issued under the fixed designation A632; 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.
1. Scope Scope*
1
1.1 This specification covers grades of stainless steel tubing in sizes under ⁄2 down to 0.050 in. (12.7 to 1.27 mm) in outside
diameter and wall thicknesses less than 0.065 in. down to 0.005 in. (1.65 to 0.13 mm) for general corrosion-resisting and low- or
high-temperature service, as designated in Table 1.
NOTE 1—The grades of austenitic stainless steel tubing furnished in accordance with this specification have been found suitable for low-temperature
service down to −325°F (−200°C) in which Charpy notched-bar impact values of 15 ft·lbf (20 J), minimum, are required and these grades need not be
impact tested.
1.2 Optional supplementary requirements are provided and, when desired, shall be so stated in the order.
1.3 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.
1.4 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:
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A380A380/A380M Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel
Tubes
E165E165/E165M Practice for Liquid Penetrant Testing for General Industry
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
2.2 SAE Standard:
3
SAE J 1086 Practice for Numbering Metals and Alloys (UNS)
3. Ordering Information
3.1 Orders for product under this specification should include the following, as required, to describe the desired material
adequately:
3.1.1 Quantity (feet or number of lengths),
3.1.2 Name of product (seamless or welded tubes),
3.1.3 Grade (see Table 1),
3.1.4 Size (only two of the following: outside diameter, inside diameter, and average wall),
3.1.5 Length (specific or random),
3.1.6 Optional requirements (check analysis, see Section 7; hydrostatic, air underwater pressure test, or nondestructive electric
test, see Section 13),
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 A01.10
on Stainless and Alloy Steel Tubular Products.
Current edition approved Oct. 1, 2014Sept. 1, 2019. Published October 2014September 2019. Originally approved in 1969. Last previous edition approved in 20092014
as A632A632 – 04 (2014). – 04 (2009). DOI: 10.1520/A0632-04R14.DOI: 10.1520/A0632-19.
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.
3
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
*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 ----------------------
A632 − 19
B
TABLE 1 Chemical Requirements
Composition, %
Grade TP 304 TP 304L TP 310 TP 316 TP 316L TP 317 TP 321 TP 347 TP 348
Element
UNS
S30400 S30403 S31000 S31600 S31603 S31700 S32100 S34700 S34800
A
Designation
Carbon, max 0.08 0.030 0.15 0.08 0.030 0.08 0.08 0.08 0.08
Carbon, max 0.08 0.030 0.25 0.08 0.030 0.08 0.08 0.08 0.08
Manganese max 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
Phosphorus, max 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045
Sulfur, max 0.030 0.030 0.030 0.030 0.
...
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