ASTM B308/B308M-20

Standard Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles

ABSTRACT
This specification covers the standard structural profiles for 6061-T6 aluminum-alloy. The profiles are limited to I-beams, H-beams, channels, angles, tees, and zees, which shall be produced by hot extruding only. Chemical composition and tensile properties such as tensile strength, yield strength, and elongation shall conform to the limits herein provided. The determination of chemical composition shall be made in accordance with suitable chemical or spectrochemical methods. Tensile properties shall be tested with test methods for tension testing wrought and cast aluminum- and magnesium-alloy products.
SCOPE
1.1 This specification2 covers extruded 6061-T6 aluminum-alloy standard structural profiles.  
1.2 The profiles are limited to I-beams, H-beams, channels, angles, tees, and zees.  
Note 1: For other extruded profiles in other alloys and tempers refer to Specification B221.  
1.3 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System alloy designation is that in Table 1 preceded by A9, or A96061 for alloy 6061 in accordance with Practice E527.  
1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.  
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.  
1.6 This standard does not purport to address all of 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.  
1.7 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-Dec-2019
• ICS: 77.150.10 - Aluminium products
• Technical Committee: B07 - Light Metals and Alloys
• Drafting Committee: B07.03 - Aluminum Alloy Wrought 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:B308/B308M −20 Used in USAEC-RDT Standards
Standard Specification for
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Aluminum-Alloy 6061-T6 Standard Structural Profiles
This standard is issued under the fixed designation B308/B308M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
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1.1 This specification covers extruded 6061-T6 aluminum-
2.1 The following documents of the issue in effect on the
alloy standard structural profiles.
dateofmaterialpurchaseformapartofthisspecificationtothe
extent referenced herein:
1.2 The profiles are limited to I-beams, H-beams, channels,
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angles, tees, and zees.
2.2 ASTM Standards:
B221 Specification forAluminum andAluminum-Alloy Ex-
NOTE1—Forotherextrudedprofilesinotheralloysandtempersreferto
truded Bars, Rods, Wire, Profiles, and Tubes
Specification B221.
B557 Test Methods for Tension Testing Wrought and Cast
1.3 Alloy and temper designations are in accordance with
Aluminum- and Magnesium-Alloy Products
ANSI H35.1/H35.1(M). The equivalent Unified Numbering
B557M Test Methods for Tension Testing Wrought and Cast
System alloy designation is that in Table 1 preceded byA9, or
Aluminum- and Magnesium-Alloy Products (Metric)
A96061 for alloy 6061 in accordance with Practice E527.
B647 Test Method for Indentation Hardness of Aluminum
1.4 For acceptance criteria for inclusion of new aluminum
Alloys by Means of a Webster Hardness Gage
and aluminum alloys in this specification, see Annex A2.
B648 Test Method for Indentation Hardness of Aluminum
Alloys by Means of a Barcol Impressor
1.5 The values stated in either SI units or inch-pound units
B660 Practices for Packaging/Packing of Aluminum and
are to be regarded separately as standard. The values stated in
Magnesium Products
each system may not be exact equivalents; therefore, each
B666/B666M Practice for Identification Marking of Alumi-
system shall be used independently of the other. Combining
num and Magnesium Products
values from the two systems may result in non-conformance
B807/B807M Practice for Extrusion Press Solution Heat
with the standard.
Treatment for Aluminum Alloys
1.6 This standard does not purport to address all of the
B881 Terminology Relating toAluminum- and Magnesium-
safety concerns, if any, associated with its use. It is the
Alloy Products
responsibility of the user of this standard to establish appro-
B918 Practice for Heat Treatment of Wrought Aluminum
priate safety, health, and environmental practices and deter-
Alloys
mine the applicability of regulatory limitations prior to use.
B985 Practice for SamplingAluminum Ingots, Billets, Cast-
1.7 This international standard was developed in accor-
ings and Finished or Semi-Finished Wrought Aluminum
dance with internationally recognized principles on standard-
Products for Compositional Analysis
ization established in the Decision on Principles for the
D3951 Practice for Commercial Packaging
Development of International Standards, Guides and Recom-
E18 Test Methods for Rockwell Hardness of Metallic Ma-
mendations issued by the World Trade Organization Technical
terials
Barriers to Trade (TBT) Committee.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
E527 Practice for Numbering Metals and Alloys in the
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This specification is under the jurisdiction of ASTM Committee B07 on Light
Unified Numbering System (UNS)
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on
Aluminum Alloy Wrought Products.
Current edition approved Jan. 1, 2020. Published January 2020. Originally
approved in 1956. Last previous edition approved in 2010 as B308/B308M – 10
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which was withdrawn January 2019 and reinstated January 2020. DOI: 10.1520/ For referenced ASTM standards, visit the ASTM website, www.astm.org, or
B0308_B0308M-20. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SB-308 in Section II of that Code. 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
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B308/B308M−20
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