1、Designation: B928/B928M 14Standard Specification forHigh Magnesium Aluminum-Alloy Sheet and Plate for MarineService and Similar Environments1This standard is issued under the fixed designation B928/B928M; the number immediately following the designation indicates the yearof original adoption or, in
2、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 appli-cation aluminum-alloy (Note 1
3、), in those alloy-tempers shownin Table 2 Table 3 and Table 4 Table 5, for flat sheet, coiledsheet, and plate, in the mill finish condition that are intendedfor marine hull construction and other marine applicationswhere frequent or constant direct contact with seawater isexpected and for similar en
4、vironments (Note 2).NOTE 1Throughout this specification use of the term alloy in thegeneral sense includes aluminum as well as aluminum alloy.NOTE 2There are other aluminum alloy-temper products that may besuitable for use in marine and similar environments, but which may notrequire the corrosion re
5、sistance testing specified by B928/B928M. SeeSpecification B209 or B209M for other aluminum sheet and platealloy-temper products.1.2 Alloy and temper designations are in accordance withANSI H35.1/H35.1(M). The equivalent Unified NumberingSystem alloy designations are those of Table 1 preceded byA9,f
6、or example, A95083 for 5083 in accordance with PracticeE527.1.3 The values stated in either SI units (Table 3 and Table 5)or inch-pound units (Table 2 and Table 4) are to be regardedseparately as standard. The values stated in each system maynot be exact equivalents; therefore, each system shall be
7、usedindependently of each other. Combining values from the twosystems may result in non-conformance with the standard.1.4 For acceptance criteria for inclusion of new aluminumand aluminum alloys in this specification, see Annex A2.1.5 This standard does not purport to address all of thesafety concer
8、ns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on thedate
9、 of material purchase, unless otherwise noted, form a partof this specification to the extent referenced herein:2.2 ASTM Standards:2B209 Specification for Aluminum and Aluminum-AlloySheet and PlateB209M Specification for Aluminum and Aluminum-AlloySheet and Plate (Metric)B557 Test Methods for Tensio
10、n Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB666/B666M Practice for Identification Marking of Alumi-num and
11、Magnesium ProductsB881 Terminology Relating to Aluminum- and Magnesium-Alloy ProductsB985 Practice for Sampling Aluminum Ingots, Billets, Cast-ings and Finished or Semi-Finished Wrought AluminumProducts for Compositional AnalysisE29 Practice for Using Significant Digits in Test Data toDetermine Conf
12、ormance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE50 Practices for Apparatus, Reagents, and Safety Consid-erations for Chemical Analysis of Metals, Ores, andRelated MaterialsE527 Practice for Numbering Metals and Alloys in theUnified Numbering Syst
13、em (UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere (Withdrawn 2011)3E716 Practices for Sampling and Sample Preparation of1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys
14、and is the direct responsibility of Subcommittee B07.03 onAluminum Alloy Wrought Products.Current edition approved May 1, 2014. Published July 2014. Originally approvedin 2003. Last previous edition approved in 2013 as B928/B928M 13. DOI:10.1520/B0928_B0928M-14.2For referenced ASTM standards, visit
15、the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of C
16、hanges section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Aluminum and Aluminum Alloys for Determination ofChemical Composition by Spectrochemical AnalysisE1251 Test Method for Analysis of Alumi
17、num and Alumi-num Alloys by Spark Atomic Emission SpectrometryG66 Test Method for Visual Assessment of ExfoliationCorrosion Susceptibility of 5XXX Series Aluminum Al-loys (ASSET Test)G67 Test Method for Determining the Susceptibility toIntergranular Corrosion of 5XXX Series Aluminum Al-loys by Mass
18、LossAfter Exposure to NitricAcid (NAMLTTest)2.3 ANSI Standards:4H35.1/H35.1(M) Alloy and Temper Designation Systems forAluminumH35.2 Dimensional Tolerances forAluminum Mill ProductsH35.2(M) Dimensional Tolerances forAluminum Mill Prod-ucts2.4 Other Standards:CEN EN 14242 Aluminum and aluminum alloys
19、. Chemicalanalysis. Inductively coupled plasma optical emissionspectral analysis53. Terminology3.1 DefinitionsRefer to Terminology B881 for definitionsof product terms used in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 exfoliation, ncorrosion that proceeds laterally
20、fromthe sites of initiation along planes parallel to the original rollingsurface, generally at grain boundaries, forming corrosionproducts that force metal away from the body of the material,giving rise to a layered appearance.3.2.2 high magnesium aluminum alloys, nin the generalsense, includes thos
21、e 5xxx alloys containing3%ormorenominal magnesium.3.2.3 intergranular corrosion, ncorrosion that preferen-tially occurs at, or adjacent to, the grain boundaries of a metalor alloy.3.2.4 lot, nan inspection lot shall consist of an identifiablequantity of material of the same mill form, alloy, temper,
22、 castor melt lot, and thickness, subjected to inspection at one time.3.2.5 sensitization, nthe development of a continuous ornearly continuous grain boundary precipitate in 5xxx alloy-temper material, that causes the material to be susceptible tointergranular forms of corrosion.3.2.6 stress-corrosio
23、n cracking, na cracking process thatrequires the simultaneous action of a corrodent, and sustainedtensile stress. (This excludes corrosion-reduced sections, whichfail by fast fracture. It also excludes intercrystalline or tran-scrystalline corrosion which can disintegrate an alloy withouteither appl
24、ied or residual stress.)4. Ordering Information4.1 Orders for material to this specification shall include thefollowing information:4.1.1 This specification designation (which includes thenumber, the year, and the revision letter, if applicable),4.1.2 Quantity in pieces or pounds kilograms,4.1.3 All
25、oy (see 7.1 and Table 1),4.1.4 Temper (see 8.1 and Table 2 and Table 4 Table 3 andTable 5),4.1.5 For sheet, whether flat or coiled, and4.1.6 Dimensions (thickness, width, and length or coil size).4.2 Additionally, orders for material to this specificationshall include the following information when
26、required by thepurchaser:4.2.1 Whether inspection or witness of inspection and testsby the purchasers representative is required prior to materialshipment (see 12.1),4.2.2 Whether Practices B660 applies and, if so, the levelsof preservation, packaging, and packing required (see 16.3),4.2.3 Whether c
27、ertification is required (see Section 14),4Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org.5Available from European Committee for Standardization (CEN), AvenueMarnix 17, B-1000 Brussels, http:/www.cenorm.be.TABLE 1 Chemical Composit
28、ion LimitsA,B,C,HAlloy Silicon Iron Copper Manganese Magnesium Chromium Zinc TitaniumOther ElementsDAluminumEach TotalE5059 0.45 0.50 0.25 0.6 to 1.2 5.0 to 6.0 0.25 0.40 to 0.9 0.20 0.05F0.15 remainder5083 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 remainder5086 0.40 0.5
29、0 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 remainder5383 0.25 0.25 0.20 0.7 to 1.0 4.0 to 5.2 0.25 0.40 0.15 0.05G0.15 remainder5456 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 remainderALimits are in weight percent maximum unless shown as a range or st
30、ated otherwise.BAnalysis shall be made for the elements for which limits are shown in this table.CFor purposes of determining conformance to these limits, an observed value or a calculated value attained from analysis shall be rounded to the nearest unit in the lastright-hand place of figures used i
31、n expressing the specified limit, in accordance with the rounding-off method of Practice E29.DOthers include listed elements for which no specific limit is shown, as well as unlisted metallic elements, but doesnt include elements shown with composition limits inthe footnotes.The producer may analyze
32、 samples for trace elements not specified in the specification. However, such analysis is not required and may not cover all metallicOthers elements. Should any analysis by the producer or the purchaser establish that an Others element exceeds the limit of Each or that the aggregate of several Other
33、selements exceeds the limit of Total, the material shall be considered nonconforming.EOther ElementsTotal shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.F0.05 to 0.25 Zr.G0.20 Zr max.HIn case of a discrepancy in the values
34、listed in Table 1 with those listed in the International Alloy Designations and Chemical Composition Limits for Wrought Aluminumand Wrought Aluminum Alloys (known as the “Teal Sheets”), the composition limits registered with the Aluminum Association and published in the “Teal Sheets” shall beconside
35、red the controlling composition. The “Teal Sheets” are available at http:/www.aluminum.org/tealsheets.B928/B928M 1424.2.4 Whether G66 and G67 testing is the required lotrelease method for the H116 and H321 tempers (see 9.5),4.2.5 Whether the G66 and G67 test results are to beincluded in the certific
36、ation (see Section 14), and4.2.6 Whether tensile testing should be in the longitudinalor long transverse direction (see 8.5).5. Responsibility for Quality Assurance5.1 Responsibility for Inspection and TestsUnless other-wise specified in the contract or purchase order, the producer isresponsible for
37、 the performance of all inspection and testrequirements specified herein. Producers may use their own orany other suitable facilities for the performance of the inspec-tion and test requirements specified herein, unless disapprovedby the purchaser in the order or at the time of contract signing.The
38、purchaser shall have the right to perform any of theinspections and tests set forth in this specification where suchinspections are deemed necessary to ensure that materialconforms to prescribed requirements.6. General Quality6.1 Unless otherwise specified, the material shall be sup-plied in the mil
39、l finish, shall be uniform as defined by therequirements of this specification and shall be commerciallysound. Any requirement not so covered is subject to negotia-tion between producer and purchaser.6.2 Each coil, sheet and plate shall be examined to deter-mine conformance to this specification wit
40、h respect to generalquality and identification marking. On approval of thepurchaser, however, the producer may use a system of statis-tical quality control for such examinations.7. Chemical Composition7.1 LimitsThe sheet and plate shall conform to the chemi-cal composition limits specified in Table
41、1. Conformance shallbe determined by the producer, by taking samples in accor-dance with Practices E716 when the ingots are poured andanalyzing those samples in accordance with Test MethodsTABLE 2 Longitudinal Mechanical Property Limits, Inch-Pound UnitsA,BTemperSpecified Thickness,in.Tensile Streng
42、th, ksi Yield Strength (0.2 % offset), ksiElongation in 2 in.or 4 Diameter, min, %min max min maxAlloy 5059H116 0.078 to 0.249 54.0 64.0 39.0 . 100.250 to 0.787 54.0 64.0 39.0 . 100.788 to 1.575 52.0 64.0 38.0 . 10H321 0.078 to 0.249 54.0 64.0 39.0 . 100.250 to 0.787 54.0 64.0 39.0 . 100.788 to 1.57
43、5 52.0 64.0 38.0 . 10Alloy 5083H116 0.063 to 0.499 44.0 56.0 31.0 . . . 100.500 to 1.250 44.0 56.0 31.0 . . . 121.251 to 1.500 44.0 56.0 31.0 . . . 121.501 to 3.000 41.0 56.0 29.0 . . . 12H321 0.125 to 0.187 44.0 56.0 31.0 . . . 100.188 to 1.500 44.0 56.0 31.0 . . . 121.501 to 3.000 41.0 56.0 29.0 .
44、 . . 12H128C0.157 to 0.499 44.0 56.0 31.0 . . . 100.500 to 1.500 44.0 56.0 31.0 . . . 121.501 to 3.000 41.0 56.0 29.0 . . . 12Alloy 5086H116 0.063 to 0.249 40.0 52.0 28.0 . . . 80.250 to 0.499 40.0 52.0 28.0 . . . 100.500 to 1.250 40.0 52.0 28.0 . . . 101.251 to 2.000 40.0 52.0 28.0 . . . 10H321C0.0
45、63 to 0.249 40.0 52.0 28.0 . . . 80.250 to 0.320 40.0 52.0 28.0 . . . 9Alloy 5383H116 0.118 to 0.500 48.0 58.0C33.0 . 100.501 to 2.000 48.0 58.0C33.0 . 10H321 0.118 to 0.500 48.0 58.0 33.0 . 100.501 to 2.000 48.0 58.0 33.0 . 10Alloy 5456H116 0.063 to 0.499 46.0 59.0 33.0 . . . 100.500 to 1.250 46.0
46、56.0 33.0 . . . 121.251 to 1.500 44.0 56.0 31.0 . . . 121.501 to 3.000 41.0 54.0 29.0 . . . 123.001 to 4.000 40.0 54.0 25.0 . . . 12H321 0.100 to 0.187 48.0 59.0 34.0 . . . 100.188 to 0.499 46.0 59.0 33.0 . . . 120.500 to 1.500 44.0 56.0 31.0 . . . 121.501 to 3.000 41.0 54.0 29.0 . . . 12ATo determi
47、ne conformance to this specification, each value for tensile strength and for yield strength shall be rounded to the nearest 0.1 ksi and each value for elongationto the nearest 0.5 %, both in accordance with the rounding method of Practice E29.BThe basis for establishment of mechanical property limi
48、ts is shown in Annex A1.CTentative properties subject to revision.B928/B928M 143TABLE 3 Longitudinal Mechanical Property Limits SI UnitsA,BTemperSpecified Thickness, mm Tensile Strength, MPaYield Strength (0.2 % offset),MPaElongation, min, %Cover through min max min max in 50 mm in 5 DiameterAlloy 5
49、059H116 1.99 6.30 370 440 270 . 10 .6.30 12.50 370 440 270 . 10 .12.50 20.00 370 440 270 . . 1020.00 40.00 360 440 260 . . 10H321 1.99 6.30 370 440 270 . 10 .6.30 12.50 370 440 270 . 10 .12.50 20.00 370 440 270 . . 1020.00 40.00 360 440 260 . . 10Alloy 5083H116 1.60 12.50 305 385 215 . . . 10 . . .12.50 30.00 305 385 215 . . . . . . 1030.00 40.00 305 385 215 . . . . . . 1040.00 80.00 285 385 200 . . . . . . 10H321 3.20 5.00 305 385 215 . . . 10 . . .5.00 12.50 305 385 215 . . . 12 . . .12.50 40.00 305 385 215 . . . . . . 1040.00 80.00 285 385 200 . .
