ASTM A847/A847M-21

Standard Specification for Cold-Formed Welded and Seamless High-Strength, Low-Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance

ABSTRACT
This specification covers standard requirements for cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special shaped structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high strength and enhanced atmospheric corrosion resistance are required. Round and shaped tubing shall meet the required tensile properties such as tensile strength, yield strength, and elongation. Heat and product analysis shall be performed wherein steel materials shall conform to the required chemical composition for carbon, manganese, phosphorus, sulphur, and copper. Outside dimension tolerances for square and rectangular tubing shall not exceed the specified plus and minus tolerances. Length tolerance for structural tubing shall be in accordance with the specified values. Twist tolerances for square and rectangular structural tubing shall be indicated.
SCOPE
1.1 This specification covers cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special tubular shapes for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high strength and enhanced atmospheric corrosion resistance are required (Note 1). The atmospheric corrosion resistance of this steel in most environments is substantially better than carbon steel with or without copper addition (Note 2). When properly exposed to the atmosphere, this steel can be used bare (unpainted) for many applications. When this steel is used in welded construction, the welding procedure shall be suitable for the steel and the intended service.  
1.2 This tubing is produced in welded sizes with a maximum periphery of 88 in. [2235 mm] and a maximum wall of 1 in. [25.4 mm], and in seamless with a maximum periphery of 32 in. [813 mm] and a maximum wall of 0.500 in. [12.7 mm]. Tubing having other dimensions may be furnished provided such tubing complies with all other requirements of this specification.
Note 1: Products manufactured to this specification may not be suitable for those applications where low temperature notch toughness properties may be important, such as dynamically loaded elements in welded structures, unless ordered with toughness tests. See the Supplementary Requirements.
Note 2: For methods of estimating the atmospheric corrosion resistance of low alloy steels, see Guide G101 or actual data.  
1.3 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 non-conformance with the 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.

General Information

• Status: Published
• Publication Date: 31-Aug-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:A847/A847M −21
Standard Specification for
Cold-Formed Welded and Seamless High-Strength, Low-
Alloy Structural Tubing with Improved Atmospheric
1
Corrosion Resistance
This standard is issued under the fixed designationA847/A847M; 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* 1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 Thisspecificationcoverscold-formedweldedandseam-
ization established in the Decision on Principles for the
less high-strength, low-alloy round, square, rectangular, or
Development of International Standards, Guides and Recom-
special tubular shapes for welded, riveted, or bolted construc-
mendations issued by the World Trade Organization Technical
tion of bridges and buildings and for general structural pur-
Barriers to Trade (TBT) Committee.
poses where high strength and enhanced atmospheric corrosion
resistance are required (Note 1). The atmospheric corrosion
2. Referenced Documents
resistance of this steel in most environments is substantially
2
2.1 ASTM Standards:
better than carbon steel with or without copper addition (Note
A370 Test Methods and Definitions for Mechanical Testing
2). When properly exposed to the atmosphere, this steel can be
of Steel Products
used bare (unpainted) for many applications.When this steel is
A700 Guide for Packaging, Marking, and Loading Methods
used in welded construction, the welding procedure shall be
for Steel Products for Shipment
suitable for the steel and the intended service.
A751 Test Methods and Practices for Chemical Analysis of
1.2 This tubing is produced in welded sizes with a maxi-
Steel Products
mum periphery of 88 in. [2235 mm] and a maximum wall of 1
A1058 Test Methods for Mechanical Testing of Steel
in. [25.4 mm], and in seamless with a maximum periphery of
Products—Metric
32 in. [813 mm] and a maximum wall of 0.500 in. [12.7 mm].
G101 Guide for Estimating the Atmospheric Corrosion Re-
Tubing having other dimensions may be furnished provided
sistance of Low-Alloy Steels
3
such tubing complies with all other requirements of this
2.2 Steel Tube Institute Standard:
specification.
Methods to Check Dimensional Tolerances on Hollow
NOTE 1—Products manufactured to this specification may not be
Structural Sections
suitable for those applications where low temperature notch toughness
properties may be important, such as dynamically loaded elements in
3. Ordering Information
welded structures, unless ordered with toughness tests. See the Supple-
mentary Requirements. 3.1 Orders for material under this specification should
NOTE 2—For methods of estimating the atmospheric corrosion resis-
include the following, as required, to describe the desired
tance of low alloy steels, see Guide G101 or actual data.
material adequately:
3.1.1 ASTM specification number,
1.3 The values stated in either SI units or inch-pound units
3.1.2 Quantity (feet, metres, or number of lengths),
are to be regarded separately as standard. Within the text, the
3.1.3 Name of material (cold-formed tubing),
SI units are shown in brackets. The values stated in each
3.1.4 Method of manufacture (welded or seamless),
system may not be exact equivalents; therefore, each system
shall be used independently of the other. Combining values 3.1.5 Size (outside diameter and nominal wall thickness for
round tubing and the outside dimensions and nominal wall
from the two systems may result in non-conformance with the
standard. thickness for square and rectangular tubing),
3.1.6 Length (specific or random, see 10.3),
1 2
This specification is under the jurisdiction of ASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
A01.09 on Carbon Steel Tubular Products. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Sept. 1, 2021. Published September 2021. Originally the ASTM website.
3
approved in 1985. Last previous edition approved in 2020 as A847/A847M – 20. Available from the Steel Tube Institute (STI), 2516 Waukegan Rd., STE 172,
DOI: 10.1520/A0847_A0847M-21. Glenview, IL 60025-1774, https://steeltubeinstitute.org.
*A Summary of Changes section appears at the end of this standard
Copyright
...

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: A847/A847M − 20 A847/A847M − 21
Standard Specification for
Cold-Formed Welded and Seamless High-Strength, Low-
Alloy Structural Tubing with Improved Atmospheric
1
Corrosion Resistance
This standard is issued under the fixed designation A847/A847M; 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 cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special
tubular shapes for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high
strength and enhanced atmospheric corrosion resistance are required (Note 1). The atmospheric corrosion resistance of this steel
in most environments is substantially better than carbon steel with or without copper addition (Note 2). When properly exposed
to the atmosphere, this steel can be used bare (unpainted) for many applications. When this steel is used in welded construction,
the welding procedure shall be suitable for the steel and the intended service.
1.2 This tubing is produced in welded sizes with a maximum periphery of 88 in. [2235 mm] and a maximum wall of 1 in. [25.4
mm], and in seamless with a maximum periphery of 32 in. [813 mm] and a maximum wall of 0.500 in. [12.7 mm]. Tubing having
other dimensions may be furnished provided such tubing complies with all other requirements of this specification.
NOTE 1—Products manufactured to this specification may not be suitable for those applications where low temperature notch toughness properties may
be important, such as dynamically loaded elements in welded structures, unless ordered with toughness tests. See the Supplementary Requirements.
NOTE 2—For methods of estimating the atmospheric corrosion resistance of low alloy steels, see Guide G101 or actual data.
1.3 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 non-conformance with the 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:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods and Practices for Chemical Analysis of Steel Products
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 Nov. 1, 2020Sept. 1, 2021. Published November 2020September 2021. Originally approved in 1985. Last previous edition approved in 20142020
as A847/A847M – 14.A847/A847M – 20. DOI: 10.1520/A0847_A0847M-20.10.1520/A0847_A0847M-21.
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 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

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A847/A847M − 21
A1058 Test Methods for Mechanical Testing of Steel Products—Metric
G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels
3
2.2 Steel Tube Institute Standard:
Methods to Check Dimensional Tolerances on Hollow Structural Sections
3. Ordering Information
3.1 Orders for material under this specification should include the following, as required, to describe the desired material
adequately:
3.1.1 ASTM specification number,
3.1.2 Quantity (feet, metres, or number of lengths),
3.1.3 Name of material (cold-formed tubing),
3.1.4 Metho
...