ASTM B928/B928M-14
(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 marine application aluminum-alloy (Note 1), 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 condition that are intended for marine hull construction and other marine applications where frequent or constant direct contact with seawater is expected and for similar environments (Note 2).
Note 1: Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.
Note 2: There are other aluminum alloy-temper products that may be suitable for use in marine and similar environments, but which may not require the corrosion resistance testing specified by B928/B928M. See Specification B209 or B209M for other aluminum sheet and plate alloy-temper products.
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 Table 1 preceded by A9, for example, A95083 for 5083 in accordance with Practice E527.
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.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B928/B928M −14
StandardSpecification 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.Anumber 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 The following documents of the issue in effect on the
1.1 Thisspecificationcovershighmagnesiummarineappli-
date of material purchase, unless otherwise noted, form a part
cation aluminum-alloy (Note 1), in those alloy-tempers shown
of this specification to the extent referenced herein:
inTable 2 [Table 3] andTable 4 [Table 5], for flat sheet, coiled
2
sheet, and plate, in the mill finish condition that are intended
2.2 ASTM Standards:
for marine hull construction and other marine applications B209Specification for Aluminum and Aluminum-Alloy
where frequent or constant direct contact with seawater is Sheet and Plate
B209MSpecification for Aluminum and Aluminum-Alloy
expected and for similar environments (Note 2).
Sheet and Plate (Metric)
NOTE 1—Throughout this specification use of the term alloy in the
B557Test Methods for Tension Testing Wrought and Cast
general sense includes aluminum as well as aluminum alloy.
NOTE 2—There are other aluminum alloy-temper products that may be Aluminum- and Magnesium-Alloy Products
suitable for use in marine and similar environments, but which may not
B557MTest Methods forTensionTestingWrought and Cast
require the corrosion resistance testing specified by B928/B928M. See
Aluminum- and Magnesium-Alloy Products (Metric)
Specification B209 or B209M for other aluminum sheet and plate
B660Practices for Packaging/Packing of Aluminum and
alloy-temper products.
Magnesium Products
1.2 Alloy and temper designations are in accordance with
B666/B666MPractice for Identification Marking of Alumi-
ANSI H35.1/H35.1(M). The equivalent Unified Numbering
num and Magnesium Products
SystemalloydesignationsarethoseofTable1precededbyA9, B881Terminology Relating toAluminum- and Magnesium-
for example, A95083 for 5083 in accordance with Practice Alloy Products
E527. B985Practice for SamplingAluminum Ingots, Billets, Cast-
ings and Finished or Semi-Finished Wrought Aluminum
1.3 ThevaluesstatedineitherSIunits(Table3andTable5)
Products for Compositional Analysis
or inch-pound units (Table 2 and Table 4) are to be regarded
E29Practice for Using Significant Digits in Test Data to
separately as standard. The values stated in each system may
Determine Conformance with Specifications
not be exact equivalents; therefore, each system shall be used
E34Test Methods for Chemical Analysis of Aluminum and
independently of each other. Combining values from the two
Aluminum-Base Alloys
systems may result in non-conformance with the standard.
E50Practices for Apparatus, Reagents, and Safety Consid-
erations for Chemical Analysis of Metals, Ores, and
1.4 For acceptance criteria for inclusion of new aluminum
Related Materials
and aluminum alloys in this specification, see Annex A2.
E527Practice for Numbering Metals and Alloys in the
1.5 This standard does not purport to address all of the
Unified Numbering System (UNS)
safety concerns, if any, associated with its use. It is the
E607Test Method for Atomic Emission Spectrometric
responsibility of the user of this standard to establish appro-
Analysis Aluminum Alloys by the Point to Plane Tech-
3
priate safety and health practices and determine the applica-
nique Nitrogen Atmosphere (Withdrawn 2011)
bility of regulatory limitations prior to use.
E716Practices for Sampling and Sample Preparation of
1 2
This specification is under the jurisdiction ofASTM 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 contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Aluminum Alloy Wrought Products. Standards volume information, refer to the standard’s Document Summary page on
CurrenteditionapprovedMay1,2014.PublishedJuly2014.Originallyapproved the ASTM website.
3
in 2003. Last previous edition approved in 2013 as B928/B928M–13. DOI: The last approved version of this historical standard is referenced on
10.1520/B0928_B0928M-14. www.astm.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−14
A,B,C,H
TABLE 1 Chemical Composition Limits
D
Other Elements
Alloy Silico
...
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: B928/B928M − 13 B928/B928M − 14
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.
1. Scope*
1.1 This specification covers high magnesium marine application aluminum-alloy (Note 1), 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 condition that are intended for marine
hull construction and other marine applications where frequent or constant direct contact with seawater is expected and for similar
environments (Note 2).
NOTE 1—Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.
NOTE 2—There are other aluminum alloy-temper products that may be suitable for use in marine and similar environments, but which may not require
the corrosion resistance testing specified by B928/B928M. See Specification B209 or B209M for other aluminum sheet and plate alloy-temper products.
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 Table 1 preceded by A9, for example, A95083 for 5083 in accordance with Practice E527.
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:
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
B209M Specification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric)
B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
B660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B666/B666M Practice for Identification Marking of Aluminum and Magnesium Products
B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products
B985 Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for
Compositional Analysis
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
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
1
This specification 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.
Current edition approved Oct. 1, 2013May 1, 2014. Published October 2013July 2014. Originally approved in 2003. Last previous edition approved in 20092013 as
B928/B928M – 09.B928/B928M – 13. DOI: 10.1520/B0928_B0928M-13.10.1520/B0928_B0928M-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
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
----------------
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.