ASTM B666/B666M-19

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Designation:B666/B666M −19
Standard Practice for
Identification Marking of Aluminum and Magnesium
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Products
This standard is issued under the fixed designation B666/B666M; 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* B404/B404M Specification for Aluminum and Aluminum-
Alloy Seamless Condenser and Heat-Exchanger Tubes
1.1 This practice establishes the physical item marking
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with Integral Fins (Withdrawn 2006)
requirements for identification purposes for aluminum and
B881 Terminology Relating toAluminum- and Magnesium-
magnesium products. Package marking for shipment and
Alloy Products
inspection acceptance is not within the scope of this standard.
2.3 ANSI Standards:
1.2 The values stated in either SI units or inch-pound units
ANSI H35.1/H35.1M Alloy and Temper Designation Sys-
are to be regarded separately as standard. The values stated in 4
tems for Aluminum
each system may not be exact equivalents; therefore, each
2.4 Military Standards:
system shall be used independently of the other. Combining
MIL-STD-409 Alloy Nomenclature and Temper Designa-
values from the two systems may result in non-conformance
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tion System for Magnesium Base Alloys
with the standard.
1.3 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions—Refer to Terminology B881 for definitions
responsibility of the user of this standard to establish appro-
of product terms used in this specification.
priate safety, health, and environmental practices and deter-
3.2 Definitions of Terms Specific to This Standard:
mine the applicability of regulatory limitations prior to use.
3.2.1 Marking:
1.4 This international standard was developed in accor-
3.2.2 spot marking—markingtheidentificationonlyonceon
dance with internationally recognized principles on standard-
the product.
ization established in the Decision on Principles for the
3.2.3 continuous marking—recurring marking of the identi-
Development of International Standards, Guides and Recom-
fication in intervals not greater than 40 in. [1000 mm]
mendations issued by the World Trade Organization Technical
throughout the length of the product.
Barriers to Trade (TBT) Committee.
3.2.4 perimeter marking—marking continuously the identi-
2. Referenced Documents fication in one or two rows adjacent to the four edges of the
product.
2.1 The following documents of the issue in effect on the
3.2.5 tagging—attaching tags bearing the required identifi-
date of material purchase form a part of this specification to the
cation markings to coils, bundles, or containers of items which
extent referenced herein:
are too small to mark or whose configuration preclude marking
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2.2 ASTM Standards:
otherwise.
B361 Specification for Factory-Made Wrought Aluminum
and Aluminum-Alloy Welding Fittings
4. Basic Marking Requirements and Application
4.1 When this practice is required by the material specifi-
cation or specified in the contract or purchase order, wrought
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This practice is under the jurisdiction of ASTM Committee B07 on Light
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on
Aluminum Alloy Wrought Products.
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Current edition approved Nov. 1, 2019. Published November 2019. Originally The last approved version of this historical standard is referenced on
approved in 1980. Last previous edition approved in 2015 as B666/B666M – 15. www.astm.org.
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DOI: 10.1520/B0666_B0666M-19. Available from Aluminum Association, Inc., 1400 Crystal Drive, Suite 430
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Arlington, VA 22202 (http://www.aluminum.org).
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contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098 (http://
the ASTM website. www.dodssp.daps.mil).
*A Summary of Changes section appears at the end of this standard
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B666/B666M−19
aluminum and magnesium mill products shall be marked for stampingisconsidereddetrimentalandshallnotbeusedexcept
identification purposes only with the following information on on ingot, castings, forging, and certain tube products, or when
the product or on tags a
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