ASTM B80-23

Standard Specification for Magnesium-Alloy Sand Castings

ABSTRACT
This specification covers magnesium-alloy sand castings. The castings shall conform to the chemical composition limits specified. The castings may be subjected to such heat treatment as deemed necessary to produce material that will conform to the requirements specified. Heat treatment shall be performed on the whole casting and never on a portion. Foundry control shall consist of examination of the castings by radiographic or other approved methods for determining internal discontinuities until the gating, pouring, and other foundry practices have been established to produce castings meeting the quality standards. The tension test specimens representing the castings shall conform to the requirements.
SCOPE
1.1 This specification covers magnesium-alloy sand castings designated as shown in Table 1.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI values in parentheses are provided for information only.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Mar-2023
• ICS: 77.150.20 - Magnesium products
• Technical Committee: B07 - Light Metals and Alloys
• Drafting Committee: B07.04 - Magnesium Alloy Cast and Wrought Products

Relations

• Refers: ASTM B296-20 - Standard Practice for Temper Designations of Magnesium Alloys, Cast and Wrought
• Effective Date: 01-May-2020

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: B80 − 23
Standard Specification for
1
Magnesium-Alloy Sand Castings
This standard is issued under the fixed designation B80; 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 U.S. Department of Defense.
1. Scope B661 Practice for Heat Treatment of Magnesium Alloys
B951 Practice for Codification of Unalloyed Magnesium and
1.1 This specification covers magnesium-alloy sand cast-
Magnesium-Alloys, Cast and Wrought
ings designated as shown in Table 1.
E29 Practice for Using Significant Digits in Test Data to
1.2 The values stated in inch-pound units are to be regarded
Determine Conformance with Specifications
as the standard. The SI values in parentheses are provided for
E35 Test Methods for Chemical Analysis of Magnesium and
information only. 3
Magnesium Alloys (Withdrawn 2008)
1.3 This standard does not purport to address all of the E88 Practice for Sampling Nonferrous Metals and Alloys in
safety concerns, if any, associated with its use. It is the
Cast Form for Determination of Chemical Composition
responsibility of the user of this standard to establish appro- E94 Guide for Radiographic Examination Using Industrial
priate safety, health, and environmental practices and deter-
Radiographic Film
mine the applicability of regulatory limitations prior to use. E155 Reference Radiographs for Inspection of Aluminum
1.4 This international standard was developed in accor-
and Magnesium Castings
dance with internationally recognized principles on standard- E165 Practice for Liquid Penetrant Testing for General
ization established in the Decision on Principles for the
Industry
Development of International Standards, Guides and Recom- E527 Practice for Numbering Metals and Alloys in the
mendations issued by the World Trade Organization Technical
Unified Numbering System (UNS)
Barriers to Trade (TBT) Committee. E716 Practices for Sampling and Sample Preparation of
Aluminum and Aluminum Alloys for Determination of
2. Referenced Documents
Chemical Composition by Spark Atomic Emission Spec-
2.1 The following documents of the issue in effect on date trometry
4
2.3 Federal Standards:
of order acceptance form a part of this specification to the
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
extent referenced herein:
2 Fed. Std. No. 184 Identification Marking of Aluminum,
2.2 ASTM Standards:
Magnesium and Titanium
B93/B93M Specification for Magnesium Alloys in Ingot
4
2.4 Military Standards:
Form for Sand Castings, Permanent Mold Castings, and
MIL-STD-129 Marking for Shipment and Storage (Military
Die Castings
Agencies)
B296 Practice for Temper Designations of Magnesium
MIL-STD-276 Impregnation of Porous Non-ferrous Metal
Alloys, Cast and Wrought
Castings
B557 Test Methods for Tension Testing Wrought and Cast
MIL-I-13857 Impregnation of Metal Castings
Aluminum- and Magnesium-Alloy Products
MIL-M-46062 Magnesium Alloy Castings, High Strength
B660 Practices for Packaging/Packing of Aluminum and
MIL-M-6857 Heat Treatment of Magnesium Alloy Castings
Magnesium Products
5
2.5 ANSI Standard:
ANSI Z1.4 Sampling Procedures and Tables for Inspection
1
This specification is under the jurisdiction of ASTM Committee B07 on Light
by Attributes
Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on
Magnesium Alloy Cast and Wrought Products.
3
Current edition approved April 1, 2023. Published April 2023. Originally The last approved version of this historical standard is referenced on
approved in 1930. Last previous edition approved in 2015 as B80 – 15. DOI: www.astm.org.
4
10.1520/B0080-23. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM www.dodssp.daps.mil.
5
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B80 − 23
2
A
TABLE 1 Chemical Requirements
NOTE 1—Analysis shall regularly be made only for the elements
...

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: B80 − 15 B80 − 23
Standard Specification for
1
Magnesium-Alloy Sand Castings
This standard is issued under the fixed designation B80; 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 U.S. Department of Defense.
1. Scope
1.1 This specification covers magnesium-alloy sand castings designated as shown in Table 1.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI values in parentheses are provided for
information only.
1.3 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 healthsafety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of order acceptance form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
B93/B93M Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings
B296 Practice for Temper Designations of Magnesium Alloys, Cast and Wrought
B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B661 Practice for Heat Treatment of Magnesium Alloys
B951 Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and Wrought
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
E35 Test Methods for Chemical Analysis of Magnesium and Magnesium Alloys (Withdrawn 2008)
E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
E94 Guide for Radiographic Examination Using Industrial Radiographic Film
E155 Reference Radiographs for Inspection of Aluminum and Magnesium Castings
E165 Practice for Liquid Penetrant Testing for General Industry
1
This specification is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on Magnesium
Alloy Cast and Wrought Products.
Current edition approved May 1, 2015April 1, 2023. Published June 2015April 2023. Originally approved in 1930. Last previous edition approved in 20092015 as
B80 – 09.B80 – 15. DOI: 10.1520/B0080-15.10.1520/B0080-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B80 − 23
2
A
TABLE 1 Chemical Requirements
NOTE 1—Analysis 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 2—The 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 shall be rounded to
the nearest unit in the last right-hand place of figures used in expressing the specified limit.
B
Alloy Number Chemical Composition Limits for Registered Magnesium Alloys
Others
C
Total
Magne- Alu- Gado- Man- Neo- Rare (Metallic
ASTM UNS Copper Iron Lithium Nickel Silicon Silver Yttrium Zinc Zirconium Impu-
sium minum linium ganese dymium Earths Impurities)
rities
Each
AM100A M10100 remainder 9.3–10.7 0.10 . . . 0.10–0.35 . 0.01 .
...