ASTM A501/A501M-21

Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing

ABSTRACT
This specification covers black and hot-dipped galvanized hot-formed welded and seamless carbon steel square, round, rectangular, or special shape structural tubing for welded, riveted, or bolted construction or bridges and buildings, and for general structural purposes. Special shape and dimensions of tubing are permitted to be furnished provided that such tubing comply with all other requirements of this specification. Test specimens shall be in accordance with other ASTM documents enlisted herein. The tubing shall be manufactured either by seamless, furnace-butt welding (continuous welding), electric-resistance welding or submerged arc welding. Testing of the sample specimens shall include one tension test from a length of each of the tubing representing each lot. If any lot fails the mechanical test, it shall be rejected or retested using additional tubing of double the original number from the lot. The lot shall be acceptable if the results of all such retests conform to the specified requirements.
SCOPE
1.1 This specification covers black and hot-dipped galvanized hot-formed welded and seamless carbon steel square, round, rectangular, or special shape structural tubing for welded, riveted, or bolted construction of bridges and buildings, and for general structural purposes.  
1.2 Square and rectangular tubing is produced with flats of 1 to 16 in. [25 to 405 mm] and a specified wall thickness 0.095 to 1.0 in. [2.5 to 25 mm]. Round tubing is produced with diameters of 1 to 48 in. [25 to 1220 mm] and a specified wall thickness of 0.095 to 4.00 in. [2.5 to 100 mm].  
1.3 This specification covers three grades: A, B, and C.  
1.4 The text of this specification contains notes and footnotes that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.  
1.5 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, 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 standard.  
1.6 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: Published
• Publication Date: 31-Jul-2021
• ICS: 23.040.10 - Iron and steel pipes
• ICS: 23.040.40 - Metal fittings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.09 - Carbon Steel Tubular Products

Standards Content (Sample)

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:A501/A501M −21
Standard Specification for
Hot-Formed Welded and Seamless Carbon Steel Structural
1
Tubing
This standard is issued under the fixed designationA501/A501M; 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* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers black and hot-dipped galva-
A53/A53M Specification for Pipe, Steel, Black and Hot-
nized hot-formed welded and seamless carbon steel square,
Dipped, Zinc-Coated, Welded and Seamless
round, rectangular, or special shape structural tubing for
A370 Test Methods and Definitions for Mechanical Testing
welded, riveted, or bolted construction of bridges and
of Steel Products
buildings, and for general structural purposes.
A700 Guide for Packaging, Marking, and Loading Methods
1.2 Square and rectangular tubing is produced with flats of
for Steel Products for Shipment
1 to 16 in. [25 to 405 mm] and a specified wall thickness 0.095
A751 Test Methods and Practices for Chemical Analysis of
to 1.0 in. [2.5 to 25 mm]. Round tubing is produced with
Steel Products
diameters of 1 to 48 in. [25 to 1220 mm] and a specified wall
A941 TerminologyRelatingtoSteel,StainlessSteel,Related
thickness of 0.095 to 4.00 in. [2.5 to 100 mm].
Alloys, and Ferroalloys
3
2.2 AIAG Standard:
1.3 This specification covers three grades: A, B, and C.
B-1 Bar Code Symbology Standard
4
1.4 The text of this specification contains notes and foot-
2.3 Federal Standard:
notes that provide explanatory material. Such notes and
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
4
footnotes, excluding those in tables and figures, do not contain
2.4 Military Standards:
any mandatory requirements.
MIL-STD-129 Marking for Shipment and Storage
1.5 This specification is expressed in both inch-pound units
3. Terminology
and in SI units; however, unless the purchase order specifies
3.1 Definitions—For definitions of terms used in this
the applicable M specification designation (SI units), the
specification, refer to Terminology A941.
inch-pound units shall apply. The values stated in either SI
units or inch-pound units are to be regarded separately as
4. Ordering Information
standard. Within the text, the SI units are shown in brackets.
The values stated in each system may not be exact equivalents; 4.1 Orders for material under this specification shall contain
information concerning as many of the following items as are
therefore,eachsystemshallbeusedindependentlyoftheother.
required to describe the desired material adequately:
Combining values from the two systems may result in noncon-
4.1.1 Quantity (weight in metric tons, feet [meters], or
formance with the standard.
number of lengths),
1.6 This international standard was developed in accor-
4.1.2 Name of material (hot-formed tubing),
dance with internationally recognized principles on standard-
4.1.3 Method of manufacture (seamless or welded); see
ization established in the Decision on Principles for the
Section 6,
Development of International Standards, Guides and Recom-
4.1.4 Grade (A, B, or C),
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
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
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, the ASTM website.
3
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Available fromAutomotive IndustryAction Group (AIAG), 26200 Lahser Rd.,
A01.09 on Carbon Steel Tubular Products. Suite 200, Southfield, MI 48033, http://www.aiag.org.
4
Current edition approved Aug. 1, 2021. Published September 2021. Originally Available from U.S. Government Printing Office, Superintendent of
approved in 1964. Last previous edition approved in 2014 as A501/A501M – 14. Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://
DOI: 10.1520/A0501_A0501M-21. www.access.gpo.gov.
*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
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A501/A501M−21
4.1.5 Size (outside diameter and wall thickness for round 8. Product Analysis
tubing and outside dimensions an
...

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: A501/A501M − 14 A501/A501M − 21
Standard Specification for
Hot-Formed Welded and Seamless Carbon Steel Structural
1
Tubing
This standard is issued under the fixed designation A501/A501M; 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*
1.1 This specification covers black and hot-dipped galvanized hot-formed welded and seamless carbon steel square, round,
rectangular, or special shape structural tubing for welded, riveted, or bolted construction of bridges and buildings, and for general
structural purposes.
1.2 Square and rectangular tubing is furnished in sizes produced with flats of 1 to 3216 in. [25 to 800 mm] across flat sides with
wall thicknesses 0.095 to 3.00405 mm] and a specified wall thickness 0.095 to 1.0 in. [2.5 to 75 mm], dependent upon size; round
1
tubing is furnished in NPS 25 mm]. Round tubing is produced ⁄2 [DN 15] to NPS 24 [DN 600] (see Note 1) inclusive, with nominal
(average) wall thicknesses 0.109 to 1.000 in. [2.8 to 25.4 mm], dependent upon size. Special shape tubing and tubing with other
dimensions is permitted to be furnished, provided that such tubing complies with all other requirements of this specification.with
diameters of 1 to 48 in. [25 to 1220 mm] and a specified wall thickness of 0.095 to 4.00 in. [2.5 to 100 mm].
NOTE 1—The dimensionless designator NPS [DN] (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal
diameter,” “size,” and “nominal size.”
1.3 This specification covers the following grades:three grades: A, B, and C.
1.3.1 Grade A — 36 000 psi [250 MPa] min yield strength.
1.3.2 Grade B — 50 000 psi [345 MPa] min yield strength.
1.4 An optional supplementary requirement is provided for Grade B and, when desired, shall be so stated on the order.The text
of this specification contains notes and footnotes that provide explanatory material. Such notes and footnotes, excluding those in
tables and figures, do not contain any mandatory requirements.
1.5 The following precautionary statement pertains only to the test method portion of this specification: This standard does not
purport to address all the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to
establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior
to use.
1.5 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order specifies the
applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either SI units or
inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated
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 A01.09
on Carbon Steel Tubular Products.
Current edition approved Oct. 1, 2014Aug. 1, 2021. Published October 2014September 2021. Originally approved in 1964. Last previous edition approved in 20072014
as A501 – 07.A501/A501M – 14. DOI: 10.1520/A0501_A0501M-14.10.1520/A0501_A0501M-21.
*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
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A501/A501M − 21
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 standard.
1.7 The text of this specification contains notes and footnotes that provide explanatory material. Such notes and footnotes,
excluding those in tables and figures, do not contain any mandatory requirements.
1.6 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:
A53/A53M Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated,
...