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    ASTM B90/B90M-12

    Standard Specification for Magnesium-Alloy Sheet and Plate


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    1. Scope

    1.1 This specification covers magnesium alloys in sheet and plate form designated as shown in Table 1.

    TABLE 1 Chemical Composition LimitsA
    Note 1Analysis shall regularly be made only for the elements specifically mentioned in this table. If, however, the presence of other elements is suspected or indicated in amounts greater than the specified limits, further analysis shall be made to determine that these elements are not present in excess of the specified limits.
    Note 2The following applies to all specified limits in this table: For purposes of acceptance and rejection, an observed value or a calculated value obtained from analysis should be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limit.

     

    Composition %A

     

    Al

    Mn

    R.E.

    Zn

    Zr

    Ca

    Cu

    Fe

    Ni

    Si

    Each

    Total

    Mg

    AZ31B

    2.5-3.5

    0.20-1.0

    . . .

    0.6-1.4

    . . .

    0.04

    0.05

    0.005

    0.005

    0.10

    . . .

    0.30

    Remainder

    A Limits are in weight percent maximum unless shown as a range.

    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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    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)


    ICS Code

    ICS Number Code 77.150.20 (Magnesium products)

    UNSPSC Code

    UNSPSC Code 30261800(Magnesium bars and sheets)


    Referencing This Standard

    DOI: 10.1520/B0090_B0090M-12

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM B90 / B90M-12, Standard Specification for Magnesium-Alloy Sheet and Plate, ASTM International, West Conshohocken, PA, 2012, www.astm.org

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