ASTM B308/B308M-00
(Specification)Standard Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles
Standard Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles
SCOPE
1.1 This specification 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 [ANSI H35.1M]. 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 inch-pound or SI units are to be regarded separately as standard. The SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems will result in nonconformance with the specification.
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Designation: B 308/B 308M – 00 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 B 308/B 308M; 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.
This standard has been approved for use by agencies of the Department of Defense.
A,B,C
TABLE 1 Chemical Composition Limits
1. Scope *
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Alloy 6061 Composition, %
1.1 This specification covers extruded 6061-T6 aluminum-
Silicon 0.40–0.8
alloy standard structural profiles.
Iron 0.7
1.2 The profiles are limited to I-beams, H-beams, channels,
Copper 0.15–0.40
angles, tees, and zees.
Manganese 0.15
Magnesium 0.8–1.2
NOTE 1—For other extruded profiles in other alloys and tempers refer to
Chromium 0.04–0.35
Specification B 221. Zinc 0.25
Titanium 0.15
1.3 Alloy and temper designations are in accordance with D
Other elements each 0.05
E
ANSI H35.1 [ANSI H35.1M]. The equivalent Unified Num- Total 0.15
Aluminum remainder
bering System alloy designation is that in Table 1 preceded by
A
Where single units are shown, these indicate the maximum amounts permit-
A9, or A96061 for alloy 6061 in accordance with Practice
ted.
E 527.
B
Analysis shall be made for the elements for which limits are shown in this table.
C
1.4 For acceptance criteria for inclusion of new aluminum For purposes of determining conformance to these limits, an observed value
or a calculated value obtained from analysis shall be rounded to the nearest unit
and aluminum alloys in this specification, see Annex A2.
in the last right-hand place of figures used in expressing the specified limit, in
1.5 The values stated in either inch-pound or SI units are to
accordance with the rounding-off method of Practice E 29.
D
be regarded separately as standard. The SI units are shown in Others includes all unlisted metallic elements. The producer may analyze
samples for trace elements not specified in the specification. However, such
brackets. The values stated in each system are not exact
analysis is not required and may not cover all metallic Others elements. Should
equivalents; therefore, each system must be used indepen-
any analysis by the producer or the purchaser establish that an Others element
exceeds the limit of Each or that the aggregate of several Others elements
dently of the other. Combining values from the two systems
exceeds the limit of Total, the material shall be considered nonconforming.
will result in nonconformance with the specification.
E
Other Elements—Total shall be the sum of unspecified metallic elements
0.010 % or more, rounded to the second decimal before determining the sum.
2. Referenced Documents
2.1 The following documents of the issue in effect on the
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Magnesium Products
date of material purchase form a part of this specification to the
B 666/B 666M Practice for Identification Marking of Alu-
extent referenced herein:
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minum Products
2.2 ASTM Standards:
B 807 Practice for Extrusion Press Solution Heat Treatment
B 557 Test Methods of Tension Testing Wrought and Cast
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3
Aluminum- and Magnesium-Alloy Products for Aluminum Alloys
E 18 Test Methods for Rockwell Hardness and Rockwell
B 557M Test Methods of Tension Testing Wrought and Cast
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Aluminum and Magnesium Alloy Products (Metric) Superficial Hardness of Metallic Materials
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E 29 Practice for Using Significant Digits in Test Data to
B 597 Practice for Heat Treatment of Aluminum Alloys
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B 647 Test Method for Indentation Hardness of Aluminum Determine Conformance with Specifications
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E 34 Test Methods for Chemical Analysis of Aluminum and
Alloys by Means of a Webster Hardness Gage
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B 648 Test Method for Indentation Hardness of Aluminum Aluminum Base Alloys
3
E 55 Practice for Sampling Wrought Nonferrous Metals and
Alloys by Means of a Barcol Impressor
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B 660 Practices for Packaging/Packing of Aluminum and Alloys for Determination of Chemical Composition
E 227 Test Method for Optical Emission Spectrometric
Analysis of Aluminum and Aluminum Alloys by the
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This specification is under the jurisdiction of ASTM Committee B07 on Light
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Point-to-Plane Technique
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on
Aluminum Alloy Wrought Products.
Current edition approved May 10, 2000. Published August 2000. Originally
published as B 308–56T. Last previous edition B 308/B 308M–96.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Annual Book of ASTM Standards, Vol 03.01.
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cation SB-308 in Section II of that Code. Annual Book of ASTM Standards, Vol 14.02.
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Annual Book of ASTM Standards
...
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