ASTM B90/B90M-07
(Specification)Standard Specification for Magnesium-Alloy Sheet and Plate
Standard Specification for Magnesium-Alloy Sheet and Plate
ABSTRACT
This specification covers magnesium-alloy sheet and plate designated as AZ31B in temper types O, H24, and H26. The sheet and plate shall conform to the chemical composition requirements prescribed for magnesium, aluminum, manganese, zinc, calcium, copper, iron, nickel and silicon, and shall meet the specified requirements for the tensile properties such as tensile strength, yield strength, and elongation for the corresponding specified thickness. Requirements for chemical analysis and tensile test including sampling are detailed.
SCOPE
1.1 This specification covers magnesium alloys in sheet and plate form designated as shown in Table 1.
1.2 The values stated in either inch-pound or SI units are to be regarded separately as standards. The SI units are shown in brackets or in separate tables or columns. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other. Combining values from the two systems may result in nonconformance with the specification.
1.3 Unless the order specifies the "M" specification designation, the material shall be furnished to the inch-pound units.
1.4 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:B90/B90M −07
StandardSpecification for
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Magnesium-Alloy Sheet and Plate
This standard is issued under the fixed designation B90/B90M; 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 Department of Defense.
1. Scope Magnesium-Alloys, Cast and Wrought
E29 Practice for Using Significant Digits in Test Data to
1.1 This specification covers magnesium alloys in sheet and
Determine Conformance with Specifications
plate form designated as shown in Table 1.
E35 Test Methods for ChemicalAnalysis of Magnesium and
1.2 The values stated in either inch-pound or SI units are to 3
Magnesium Alloys (Withdrawn 2008)
be regarded separately as standards. The SI units are shown in
E55 Practice for Sampling Wrought Nonferrous Metals and
brackets or in separate tables or columns. The values stated in
Alloys for Determination of Chemical Composition
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each system are not exact equivalents; therefore, each system
2.3 Federal Standards:
must be used independent of the other. Combining values from
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
the two systems may result in nonconformance with the
Fed. Std. No. 184 Identification Marking of Aluminum,
specification.
Magnesium and Titanium
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1.3 Unless the order specifies the “M” specification 2.4 Military Standards:
designation, the material shall be furnished to the inch-pound MIL-STD-129 Marking for Shipment and Storage
units. MIL-M-3171 MagnesiumAlloy,ProcessesforPretreatment
and Prevention of Corrosion
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions:
priate safety and health practices and determine the applica-
3.1.1 plate—a rolled product rectangular in cross section
bility of regulatory limitations prior to use.
and form, of thickness 0.250 in., or more, [over 6.30 mm],
either sheared or sawed edges.
2. Referenced Documents
3.1.2 sheet—a rolled product rectangular in cross section
2.1 The following documents of the issue in effect on date
and form, of thickness of 0.006 through 0.249 in. [over 0.15
of material purchase form a part of this specification to the
through 6.30 mm] with sheared, slit, or sawed edges.
extent referenced herein:
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2.2 ASTM Standards:
4. Ordering Information
B557 Test Methods for Tension Testing Wrought and Cast
4.1 Orders for sheet and plate to this specification shall
Aluminum- and Magnesium-Alloy Products
include the following information:
B557M Test Methods for Tension Testing Wrought and Cast
4.1.1 Quantity in pieces, lbs, or [kg]
Aluminum- and Magnesium-Alloy Products (Metric)
4.1.2 Alloy (Section 5 and Table 1),
B660 Practices for Packaging/Packing of Aluminum and
4.1.3 Temper (Section 6 and Table 2),
Magnesium Products
4.1.4 Thickness, width, and length,
B951 PracticeforCodificationofUnalloyedMagnesiumand
4.1.5 Surface treatment (see 8.2),
4.1.6 Whether inspection is required at the manufacturer’s
works (see 13.1), and
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This specification is under the jurisdiction of ASTM Committee B07 on Light
4.1.7 Whether certification of the material by the vendor is
Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on
required (Section 15).
Magnesium Alloy Cast and Wrought Products.
CurrenteditionapprovedJune1,2007.PublishedJuly2007.Originallyapproved
in 1932. Last previous edition approved in 2005 as B90/B90M – 98 (2005). DOI:
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10.1520/B0090_B0090M-07. The last approved version of this historical standard is referenced on
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.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.
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B90/B90M−07
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TABLE 1 Chemical Composition Limits
NOTE 1—Analysis shall regularly be made only for the elements specifically mentioned in this table. If, however, the presence of other elements is
suspectedorindicatedinamountsgreaterthanthespecifiedlimits,furtheranalysisshallbemadetodeterminethattheseelementsarenotpresentinexcess
of the specified limits.
NOTE 2—The following applies to all specified limi
...
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