ASTM B928/B928M-07
(Specification)Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service and Similar Environments
Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service and Similar Environments
ABSTRACT
This specification covers high magnesium marine application aluminum-alloy in those alloy tempers for flat sheet, coiled sheet, and plate, in the mill finish that are intended for marine and similar environments. An inspection lot shall consist of an identifiable quantity of material of the same mill form, alloy, temper, cast or melt lot, and thickness, subjected to inspection at one time. The material shall be supplied in the mill finish and shall be uniform as defined by the requirements of this specification and shall be commercially sound. Each coil, sheet and plate shall be examined to determine conformance to this specification with respect to general quality and identification marking. One sample shall be taken from each end of each parent coil, or parent plate. Alloy-tempers are manufactured and corrosion tested for intended use in marine hull construction or in marine applications where frequent or constant direct contact with seawater is expected. The specimen shall be capable of exhibiting resistance to intergranular corrosion as indicated by an acceptable mass-loss when tested and shall also be capable of exhibiting no evidence of exfoliation or corrosion. Under metallographic examination, the microstructure of a sample from each production lot shall be compared to that of the producer-established reference photomicrograph of acceptable material, in the same thickness range. Each shipping container shall be marked with the purchase order number, material size, specification number, alloy and temper, gross and net weights, and the producer's name or trademark.
SCOPE
1.1 This specification covers high magnesium (Note 1) marine application aluminum-alloy (Note 2), in those alloy-tempers shown in Table 2 [Table 3] and Table 4 [Table 5], for flat sheet, coiled sheet, and plate, in the mill finish that are intended for marine and similar environments:Note 1
The term high magnesium in the general sense includes those alloys containing 3 % or more nominal magnesium.Note 2
Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.
1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System alloy designations are those of preceded by A9, for example, A95083 for 5083 in accordance with Practice E 527.
1.3 The values stated in either SI units (Table 3 and Table 5) or inch-pound units (Table 2 and Table 4) 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 each other. Combining values from the two systems may result in non-conformance with the standard.
1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: B928/B928M – 07
Standard Specification for
High Magnesium Aluminum-Alloy Sheet and Plate for Marine
1
Service and Similar Environments
This standard is issued under the fixed designation B928/B928M; 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.
2
1. Scope* 2.2 ASTM Standards:
B557 Test Methods for Tension Testing Wrought and Cast
1.1 This specification covers high magnesium (Note 1)
Aluminum- and Magnesium-Alloy Products
marine application aluminum-alloy (Note 2), in those alloy-
B557M TestMethodsforTensionTestingWroughtandCast
tempers shown in Table 2 [Table 3] and Table 4 [Table 5], for
Aluminum- and Magnesium-Alloy Products (Metric)
flat sheet, coiled sheet, and plate, in the mill finish that are
B660 Practices for Packaging/Packing of Aluminum and
intended for marine and similar environments:
Magnesium Products
NOTE 1—The term high magnesium in the general sense includes those
B666/B666M Practice for Identification Marking ofAlumi-
alloys containing 3 % or more nominal magnesium.
num and Magnesium Products
NOTE 2—Throughout this specification use of the term alloy in the
B881 TerminologyRelatingtoAluminum-andMagnesium-
general sense includes aluminum as well as aluminum alloy.
Alloy Products
1.2 Alloy and temper designations are in accordance with
E3 Guide for Preparation of Metallographic Specimens
ANSI H35.1/H35.1(M). The equivalent Unified Numbering
E29 Practice for Using Significant Digits in Test Data to
SystemalloydesignationsarethoseofTable1precededbyA9,
Determine Conformance with Specifications
for example, A95083 for 5083 in accordance with Practice
E34 Test Methods for ChemicalAnalysis ofAluminum and
E527.
Aluminum-Base Alloys
1.3 The values stated in either SI units (Table 3 andTable 5)
E55 Practice for Sampling Wrought Nonferrous Metals and
or inch-pound units (Table 2 and Table 4) are to be regarded
Alloys for Determination of Chemical Composition
separately as standard. The values stated in each system may
E527 Practice for Numbering Metals and Alloys in the
not be exact equivalents; therefore each system shall be used
Unified Numbering System (UNS)
independently of each other. Combining values from the two
E716 Practices for Sampling Aluminum and Aluminum
systems may result in non-conformance with the standard.
Alloys for Spectrochemical Analysis
1.4 For acceptance criteria for inclusion of new aluminum
E1251 Test Method for Analysis of Aluminum and Alumi-
and aluminum alloys in this specification, see Annex A2.
num Alloys by Atomic Emission Spectrometry
1.5 This standard does not purport to address all of the
G66 Test Method for Visual Assessment of Exfoliation
safety concerns, if any, associated with its use. It is the
Corrosion Susceptibility of 5XXX Series Aluminum Al-
responsibility of the user of this standard to establish appro-
loys (ASSET Test)
priate safety and health practices and determine the applica-
G67 Test Method for Determining the Susceptibility to
bility of regulatory limitations prior to use.
Intergranular Corrosion of 5XXX SeriesAluminumAlloys
by Mass Loss After Exposure to Nitric Acid (NAMLT
2. Referenced Documents
Test)
2.1 The following documents of the issue in effect on the
3
2.3 ANSI Standards:
date of material purchase, unless otherwise noted, form a part
H35.1/H35.1(M) Alloy and Temper Designation Systems
of this specification to the extent referenced herein:
for Aluminum
1 2
This specification is under the jurisdiction of ASTM Committee B07 on Light For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on contactASTM Customer Service at service@astm.org. ForAnnual Book ofASTM
Aluminum Alloy Wrought Products. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 15, 2007. Published June 2007. Originally the ASTM website.
3
approved in 2003. Last previous edition approved in 2004 as B928/B928M – 04a. Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,
DOI: 10.1520/B0928_B0928M-07. Arlington, VA 22209, http://www.aluminum.org.
*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 ----------------------
B928/B928M – 07
A,B,C
TABLE 1 Chemical Composition Limits
D
Other Elements
Alloy Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium Aluminum
E
Each Total
F
5059 0.45 0.50 0.25 0.6 to 1.2 5.0 to 6.0 0.25 0.4 to0.
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:B928/B928M–04a Designation: B 928/B 928M – 07
Standard Specification for
High Magnesium Aluminum-Alloy Sheet and Plate for Marine
1
Service and Similar Environments
This standard is issued under the fixed designation B 928/B 928M; 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.
1. Scope*
1.1 This specification covers high magnesium (Note 1) marine application aluminum-alloy (Note 2), in those alloy-tempers
showninTable2[Table3]andTable4[Table5],forflatsheet,coiledsheet,andplate,inthemillfinishthatareintendedformarine
and similar environments:
NOTE 1—The term high magnesium in the general sense includes those alloys containing 3 % or more nominal magnesium.
NOTE 2—Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.
1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M) [H35.1M]. . The equivalent Unified
Numbering System alloy designations are those of Table 1 preceded by A9, for example, A95083 for 5083 in accordance with
Practice E 527.
1.3 The values stated in either SI units (Table 3 and Table 5) or inch-pound units (Table 2 and Table 4) 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 each other. Combining values from the two systems may result in non-conformance with the standard.
1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.
1.5 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 The following documents of the issue in effect on the date of material purchase, unless otherwise noted, form a part of this
specification to the extent referenced herein:
2
2.2 ASTM Standards:
B 557 Test Methods offor Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B 557M Test Methods offor Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products [Metric] (Metric)
B 660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B 666/B 666M Practice for Identification Marking of Aluminum and Magnesium Products
B 881 Terminology RelatedRelating to Aluminum- and Magnesium-Alloy Products
E 3Practice Guide for Preparation of Metallographic Specimens
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E 34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
E 55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition E407Test
Methods
for Mi-
croetch-
ing Met-
als and
Alloys
E 527Practice for Numbering Metals and Alloys (UNS)
E607Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point-to-Plane Technique, Nitrogen
1
This specification is under the jurisdiction ofASTM Committee B07 on Light Metals andAlloys and is the direct responsibility of Subcommittee B07.03 onAluminum-
Alloy Wrought Products.
Current edition approved Dec. 1, 2004.May 15, 2007. Published December 2004.June 2007. Originally approved in 2003. Last previous edition approved in 2004 as
B 928/B 928M – 04a.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 ----------------------
B 928/B 928M – 07
A,B ,C
TABLE 1 Chemical Composition Limits
D
Other Elements
Alloy Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium Aluminum
E
Each Total
F
5059 0.45 0.50 0.25 0.6to1.2 5.0to6.0 0.25 0.4 to0.9 0.20 0.05 0.15 remainder
5083 0.40 0.40 0.10 0.40 to 1.0 4.0to4.9 0.05 to 0.25 0.25 0.15 0.05 0.15 remainder
5086 0.40 0.50 0.10 0.20 to 0.7 3.5to4.5 0.05 to 0.25 0.25 0.15 0.05 0.15 remainder
G
5383 0.25
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:B928/B928M–04a Designation: B 928/B 928M – 07
Standard Specification for
High Magnesium Aluminum-Alloy Sheet and Plate for Marine
1
Service and Similar Environments
This standard is issued under the fixed designation B 928/B 928M; 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 high magnesium (Note 1) marine application aluminum-alloy (Note 2), in those alloy-tempers
showninTable2[Table3]andTable4[Table5],forflatsheet,coiledsheet,andplate,inthemillfinishthatareintendedformarine
and similar environments:
NOTE 1—The term high magnesium in the general sense includes those alloys containing 3 % or more nominal magnesium.
NOTE 2—Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.
1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M) [H35.1M]. . The equivalent Unified
Numbering System alloy designations are those of Table 1 preceded by A9, for example, A95083 for 5083 in accordance with
Practice E 527.
1.3 The values stated in either SI units (Table 3 and Table 5) or inch-pound units (Table 2 and Table 4) 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 each other. Combining values from the two systems may result in non-conformance with the standard.
1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.
1.5 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 The following documents of the issue in effect on the date of material purchase, unless otherwise noted, form a part of this
specification to the extent referenced herein:
2
2.2 ASTM Standards:
B 557 Test Methods offor Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B 557M Test Methods offor Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products [Metric](Metric)
B 660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B 666/B 666M Practice for Identification Marking of Aluminum and Magnesium Products
B 881 Terminology RelatedRelating to Aluminum- and Magnesium-Alloy Products
E3 Practice for Preparation of Metallographic Specimens
E29Guide for Preparation of Metallographic Specimens
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition E407Test
Methods
for Mi-
croetch-
ing Met-
als and
Alloys
E 527 Practice for Numbering Metals and Alloys (UNS)
1
This specification is under the jurisdiction ofASTM Committee B07 on Light Metals andAlloys and is the direct responsibility of Subcommittee B07.03 onAluminum-
Alloy Wrought Products.
Current edition approved Dec. 1, 2004.May 15, 2007. Published December 2004.June 2007. Originally approved in 2003. Last previous edition approved in 2004 as
B 928/B 928M – 04a.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 ----------------------
B 928/B 928M – 07
A,B ,C
TABLE 1 Chemical Composition Limits
D
Other Elements
Alloy Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium Aluminum
E
Each Total
F
5059 0.45 0.50 0.25 0.6to1.2 5.0to6.0 0.25 0.4 to0.9 0.20 0.05 0.15 remainder
5083 0.40 0.40 0.10 0.40 to 1.0 4.0to4.9 0.05 to 0.25 0.25 0.15 0.05 0.15 remainder
5086 0.40 0.50 0.10 0.20 to 0.7 3.5to4.5 0.05 to 0.25 0.25 0.15 0.05 0.15 remainder
G
5383 0.25 0.25 0.20 0.7to1.0 4.0to5.2 0.25 0.40 0.15 0.05 0.15 remainder
5456 0.25
...
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