ASTM B928-03

Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service

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], for flat sheet, coiled sheet, and plate, in the mill finish:Note 2
The term high magnesium in the general sense includes those alloys containing 3 % or more nominal magnesium.
Note 1—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 [H35.1M]. The equivalent Unified Numbering System alloy designations are those ofTable 1 preceded by A9, for example, A95083 for 5083 in accordance with Practice E 527.
1.3 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 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.

General Information

• Status: Historical
• Publication Date: 09-Jul-2003
• ICS: 47.020.01 - General standards related to shipbuilding and marine structures
• ICS: 77.120.01 - Non-ferrous metals in general
• Technical Committee: B07 - Light Metals and Alloys
• Drafting Committee: B07.03 - Aluminum Alloy Wrought Products

Relations

• Replaced By: ASTM B928-04 - Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service
• Effective Date: 01-Feb-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 928 – 03
Standard Specification for
High Magnesium Aluminum-Alloy Sheet and Plate for Marine
1
Service
This standard is issued under the fixed designation B 928; 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 B 881 Terminology Related to Aluminum- and Magnesium-
2
Alloy Products
1.1 This specification covers high magnesium (Note 1)
3
E 3 Practice for Preparation of Metallographic Specimens
marine application aluminum-alloy (Note 2), in those alloy-
E 29 Practice for Using Significant Digits in Test Data to
tempers shown in Table 2 [Table 3], for flat sheet, coiled sheet,
4
Determine Conformance with Specifications
and plate, in the mill finish:
E 34 Test Methods for Chemical Analysis of Aluminum and
NOTE 1—The term high magnesium in the general sense includes those 5
Aluminum-Base Alloys
alloys containing 3 % or more nominal magnesium.
E 55 Practice for Sampling Wrought Nonferrous Metals and
NOTE 2—Throughout this specification use of the term alloy in the
5
Alloys for Determination of Chemical Composition
general sense includes aluminum as well as aluminum alloy.
3
E 407 Test Methods for Microetching Metals and Alloys
1.2 Alloy and temper designations are in accordance with
6
E 527 Practice for Numbering Metals and Alloys (UNS)
ANSI H35.1 [H35.1M]. The equivalent Unified Numbering
E 607 Test Method for Atomic Emission Spectrometric
System alloy designations are those of Table 1 preceded by A9,
Analysis Aluminum Alloys by the Point-to-Plane Tech-
for example, A95083 for 5083 in accordance with Practice 5
nique, Nitrogen Atmosphere
E 527.
E 716 Practices for Sampling Aluminum and Aluminum
1.3 The values stated in either SI units or inch-pound units 5
Alloys for Spectrochemical Analysis
are to be regarded separately as standard. The values stated in
E 1251 Test Method for Optical Emission Spectrometric
each system may not be exact equivalents; therefore each
Analysis of Aluminum and Aluminum Alloys by the Argon
system shall be used independently of each other. Combining
Atmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-
values from the two systems may result in non-conformance 5
pacitor Discharge
with the standard.
G 66 Test Method for Visual Assessment of Exfoliation
1.4 For acceptance criteria for inclusion of new aluminum
Corrosion Susceptibility of 5xxx Series Aluminum Alloys
and aluminum alloys in this specification, see Annex A2.
7
(ASSET Test)
G 67 Test Method for Determining the Susceptibility to
2. Referenced Documents
Intergranular Corrosion of 5xxx Series Aluminum Alloys
2.1 The following documents of the issue in effect on the
by Mass Loss After Exposure to Nitric Acid (NAMLT
date of material purchase, unless otherwise noted, form a part
7
Test)
of this specification to the extent referenced herein:
2.3 ANSI Standards:
2.2 ASTM Standards:
H35.1 Alloy and Temper Designation Systems for Alumi-
B 557 Test Methods of Tension Testing Wrought and Cast
8
num
2
Aluminum- and Magnesium-Alloy Products
H35.1(M) Alloy and Temper Designation Systems for Alu-
B 557M Test Methods of Tension Testing Wrought and Cast
8
minum
2
Aluminum- and Magnesium-Alloy Products [Metric]
H35.2 Dimensional Tolerances for Aluminum Mill Prod-
B 660 Practices for Packaging/Packing of Aluminum and
8
ucts
2
Magnesium Products
B 666/B 666M Practice for Identification Marking of Alu-
2
minum and Magnesium Products
3
Annual Book of ASTM Standards, Vol 03.01.
4
Annual Book of ASTM Standards, Vol 14.02.
1 5
This specification is under the jurisdiction of ASTM Committee B07 on Light Annual Book of ASTM Standards, Vol 03.05.
6
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on Annual Book of ASTM Standards, Vol 01.01.
7
Aluminum-Alloy Wrought Products. Annual Book of ASTM Standards, Vol 03.02.
8
Current edition approved July 10, 2003. Published October 2003. Available in the Related Materials section (gray pages) of the Annual Book of
2
Annual Book of ASTM Standards, Vol 02.02. ASTM Standards, Vol 02.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B928–03
A,B,C
TABLE 1 Chemical Composition Limits
D
Other Elements
Alloy Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium Aluminum
E
Each Total
5083 0.40 0.40 0.10 0.40 to 1.0 4.0 to 4.9 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 3.5 to 4.5 0.05 to 0.25 0.25 0.15 0.05 0.15 remainder
5456 0.25 0.40 0.10 0.50 to 1.0 4.7 to 5.5 0.05 to 0.20 0.25 0.20 0.05 0.15 remainder
A
...