ASTM A632-01

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 632 – 01 An American National Standard
Standard Specification for
Seamless and Welded Austenitic Stainless Steel Tubing
1
(Small-Diameter) for General Service
This standard is issued under the fixed designation A 632; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification covers grades of stainless steel tubing 3.1 Definitions—For definitions of terms used in this speci-
1
in sizes under ⁄2 down to 0.050 in. (12.7 to 1.27 mm) in outside fication, refer to Terminology A 941.
diameter and wall thicknesses less than 0.065 in. down to 0.005
4. Ordering Information
in. (1.65 to 0.13 mm) for general corrosion-resisting and low-
or high-temperature service, as designated in Table 1. 4.1 Orders for material under this specification should
include the following, as required, to describe the desired
NOTE 1—The grades of austenitic stainless steel tubing furnished in
material adequately:
accordance with this specification have been found suitable for low-
4.1.1 Quantity (feet or number of lengths),
temperature service down to −325°F (−200°C) in which Charpy notched-
4.1.2 Name of material (seamless or welded tubes),
bar impact values of 15 ft·lbf (20 J), minimum, are required and these
grades need not be impact tested.
4.1.3 Grade (see Table 1),
4.1.4 Size (only two of the following: outside diameter,
1.2 Optional supplementary requirements are provided and,
inside diameter, and average wall),
when desired, shall be so stated in the order.
4.1.5 Length (specific or random),
1.3 The values stated in inch-pound units are to be regarded
4.1.6 Optional requirements (check analysis, see Section 15;
as the standard.
hydrostatic or nondestructive electric test, see Section 16),
2. Referenced Documents
4.1.7 Test report required,
4.1.8 Specification designation, and
2.1 ASTM Standards:
4.1.9 Special requirements or any supplementary require-
A 262 Practices for Detecting Susceptibility to Intergranu-
2
ments selected, or both.
lar Attack in Austenitic Stainless Steels
A 370 Test Methods and Definitions for Mechanical Testing
5. Manufacture
3
of Steel Products
5.1 Manufacture—The tubes shall be cold finished and shall
A 751 Test Methods, Practices, and Terminology for
3
be made by the seamless or welded process.
Chemical Analysis of Steel Products
5.2 Heat Treatment—All material shall be furnished in the
A 941 Terminology Relating to Steel, Stainless Steel, Re-
4
heat-treated condition. The heat-treatment procedure shall
lated Alloys, and Ferroalloys
5
consist of heating the material to a minimum temperature of
E 165 Test Method for Liquid Penetrant Examination
4 1800°F (980°C) and quenching in water or rapidly cooling by
E 527 Practice for Numbering Metals and Alloys (UNS)
other means.
2.2 SAE Standard:
SAE J 1086 Practice for Numbering Metals and Alloys
6. Chemical Composition
6
(UNS)
6.1 The steel shall conform to the requirements as to
chemical composition as specified in Table 1.
7. Product Analysis
1
7.1 When specified on the purchase order, an analysis of
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and Related Alloys, and is the direct responsibility of Subcommittee
either one billet or one length of flat-rolled stock or one tube
A01.10 on Stainless and Alloy Steel Tubular Products.
shall be made from each heat. Samples for chemical analysis,
Current edition approved May 10, 2001. Published June 2001. Originally
except spectrochemical analysis, shall be taken in accordance
published as A 632 – 69. Last previous edition A 632 – 98.
2
Annual Book of ASTM Standards, Vol 01.03. with Test Methods A 751. The chemical composition thus
3
Annual Book of ASTM Standards, Vols 01.01, 01.02, 01.03, 01.04, and 01.05.
determined shall conform to the requirements specified.
4
Annual Book of ASTM Standards, Vol 01.01.
7.2 If the analysis made in accordance with 7.1 does not
5
Annual Book of ASTM Standards, Vol 03.03.
6
conform to the requirements specified, an analysis of each
Available from Society of Automotive Engineers, 400 Commonwealth Drive,
Warrendale, PA 15096.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 632
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
Manganese max 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.0
...