ASTM A847/A847M-11
(Specification)Standard Specification for Cold-Formed Welded and Seamless High-Strength, Low-Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance
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 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 (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 64 in. [1626 mm] and a maximum wall of 0.625 in. [15.9 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.
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.
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, etc.
Note 2—For methods of estimating the atmospheric corrosion resistance of low alloy steels see Guide G101 or actual data.
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Designation:A847/A847M −11
StandardSpecification 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* 2. Referenced Documents
2
1.1 Thisspecificationcoverscold-formedweldedandseam- 2.1 ASTM Standards:
less high-strength, low-alloy round, square, rectangular, or A370 Test Methods and Definitions for Mechanical Testing
special shaped structural tubing for welded, riveted, or bolted of Steel Products
construction of bridges and buildings and for general structural A700 Practices for Packaging, Marking, and Loading Meth-
purposes where high strength and enhanced atmospheric cor- ods for Steel Products for Shipment
rosion resistance are required (Note 1). The atmospheric A751 Test Methods, Practices, and Terminology for Chemi-
corrosion resistance of this steel in most environments is cal Analysis of Steel Products
substantially better than carbon steel with or without copper G101 Guide for Estimating the Atmospheric Corrosion Re-
addition (Note 2). When properly exposed to the atmosphere, sistance of Low-Alloy Steels
this steel can be used bare (unpainted) for many applications.
3. Ordering Information
When this steel is used in welded construction, the welding
procedure shall be suitable for the steel and the intended
3.1 Orders for material under this specification should
service.
include the following, as required, to describe the desired
material adequately:
1.2 This tubing is produced in welded sizes with a maxi-
3.1.1 ASTM specification number,
mum periphery of 64 in. [1626 mm] and a maximum wall of
3.1.2 Quantity (feet, metres, or number of lengths),
0.625 in. [15.9 mm], and in seamless with a maximum
3.1.3 Name of material (cold-formed tubing),
periphery of 32 in. [813 mm] and a maximum wall of 0.500 in.
3.1.4 Method of manufacture (welded or seamless),
[12.7 mm]. Tubing having other dimensions may be furnished
3.1.5 Size (outside diameter and nominal wall thickness for
provided such tubing complies with all other requirements of
round tubing and the outside dimensions and nominal wall
this specification.
thickness for square and rectangular tubing),
1.3 The values stated in either SI units or inch-pound units
3.1.6 Length (specific or random, see 10.3),
are to be regarded separately as standard. Within the text, the
3.1.7 End condition (see 14.2),
SI units are shown in brackets. The values stated in each
3.1.8 Burr removal (see 14.2),
system may not be exact equivalents; therefore, each system
3.1.9 Certification (see Section 17),
shall be used independently of the other. Combining values
3.1.10 End use, and
from the two systems may result in non-conformance with the
3.1.11 Special requirements.
standard.
4. Process
NOTE 1—Products manufactured to this specification may not be
suitable for those applications where low temperature notch toughness
4.1 The steel shall be made by one or more of the following
properties may be important, such as dynamically loaded elements in
processes: open hearth, basic oxygen, or electric furnace.
welded structures, etc.
NOTE 2—For methods of estimating the atmospheric corrosion resis-
5. Manufacture
tance of low alloy steels see Guide G101 or actual data.
5.1 The tubing shall be made by a welded or seamless
process.
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
2
A01.09 on Carbon Steel Tubular Products. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2011. Published May 2011. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1985. Last previous edition approved in 2005 as A847/A847M–05. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A0847_A0847M-11. 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 ----------------------
A847/A847M−11
TABLE 2 Chemical Requirements
5.2 Welded tubing shall be made from flat-rolled steel by
the electric-resistance welding or electric-fusion welding pro- Elements Heat Analysis Product Analysis
cess. The longitudinal butt joint shall be welded across its
Carbon, max 0.20 0.24
thicknessinsuchamannerthatth
...
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–05 Designation: A847/A847M – 11
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*
1.1 This specification covers 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 (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 64 in. [1626 mm] and a maximum wall of 0.625 in.
[15.9 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.
1.3 The values stated in either inch-poundSI units or SIinch-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 aremay not be exact equivalents; therefore, each system
is to shall be used independently of the other, without combining other. Combining values from the two systems may result in any
way.non-conformance with the standard.
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, etc.
NOTE 2—For methods of estimating the atmospheric corrosion resistance of low alloy steels see Guide G101 or actual data.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels
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 Method of manufacture (welded or seamless),
3.1.5 Size(outsidediameterandnominalwallthicknessforroundtubingandtheoutsidedimensionsandnominalwallthickness
for square and rectangular tubing),
3.1.6 Length (specific or random, see 10.3),
3.1.7 End condition (see 14.2),
3.1.8 Burr removal (see 14.2),
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.09
on Carbon Steel Tubular Products.
Current edition approved Oct.April 1, 2005.2011. Published November 2005.May 2011. Originally approved in 1985. Last previous edition approved in 20032005 as
A847–99a(2003).A847/A847M–05. DOI: 10.1520/A0847_A0847M-0511.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
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 ----------------------
A847/A847M – 11
3.1.9 Certification (see Section 17),
3.1.10 End use, and
3.1.11 Special requirements.
4. Process
4.1 The steel shall be made by one or more of the following processes: open hearth, basic oxygen, or electric furnace.
5. Manu
...
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