ASTM B93/B93M-09
(Specification)Standard Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings
Standard Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings
ABSTRACT
This specification covers magnesium alloys in ingot form for remelting for the manufacture of sand castings, permanent mold castings, investment castings, and die castings. The chemical composition shall conform to the requirements and limits prescribed in the specification. Samples for the chemical analysis may be taken from the molten metal when the ingot is poured or from the ingots.
SCOPE
1.1 This specification covers magnesium alloys in ingot form for remelting for the manufacture of sand castings, permanent mold castings, investment castings, and die castings.
Note 1—Supplementary information pertaining to the alloys covered by this specification when used in the form of castings is given in Specifications B80, B94, B199 and B403.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.
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 health practices and determine the applicability of regulatory limitations prior to use.
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Designation:B93/B93M −09
StandardSpecification for
Magnesium Alloys in Ingot Form for Sand Castings,
1
Permanent Mold Castings, and Die Castings
This standard is issued under the fixed designation B93/B93M; 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.
Note—Table 1 was corrected editorially and the year date changed on Dec. 7, 2009.
1. Scope B951 PracticeforCodificationofUnalloyedMagnesiumand
Magnesium-Alloys, Cast and Wrought
1.1 This specification covers magnesium alloys in ingot
E29 Practice for Using Significant Digits in Test Data to
form for remelting for the manufacture of sand castings,
Determine Conformance with Specifications
permanent mold castings, investment castings, and die cast-
E35 Test Methods for ChemicalAnalysis of Magnesium and
ings.
3
Magnesium Alloys (Withdrawn 2008)
NOTE 1—Supplementary information pertaining to the alloys covered
E88 Practice for Sampling Nonferrous Metals and Alloys in
by this specification when used in the form of castings is given in
Cast Form for Determination of Chemical Composition
Specifications B80, B94, B199 and B403.
E527 Practice for Numbering Metals and Alloys in the
1.2 The values stated in either inch-pound units or SI units
Unified Numbering System (UNS)
are to be regarded separately as standard. The values stated in
each system are not exact equivalents; therefore, each system
3. Ordering Information
shall be used independently of the other.
3.1 Orders for ingot to this specification shall include the
1.3 This standard does not purport to address all of the
following information:
safety concerns, if any, associated with its use. It is the
3.1.1 Quantity in pounds (kilograms)
responsibility of the user of this standard to establish appro-
3.1.2 Alloy (Section 4 and Table 1 or Table 2), and
priate safety and health practices and determine the applica-
3.1.3 Form: as agreed upon between the purchaser and
bility of regulatory limitations prior to use.
seller. Some forms in commercial use are:
Approximate
2. Referenced Documents
Approximate Size Length by Width
Form Weight,
by Height, in. (mm)
2.1 The following documents of the issue in effect on date
lb (kg)
3 3
Five-segment 23 by 2 ⁄4 by 1 ⁄4 (583 by 70 by 44) 5 (2.3)
of order acceptance form a part of this specification to the
1
Four-segment 28 by 4 ⁄2 by 4 (711 by 114 by 102) 20 (9.1)
extent referenced herein:
1 5 5
Self-Palletizing 26 ⁄2 by 6 ⁄8 by 2 ⁄8 (672 by 168 by 67) 25 (11.3)
2
2.2 ASTM Standards:
3.1.4 Inspection required at the manufacturer’s works (see
B80 Specification for Magnesium-Alloy Sand Castings
8.1).
B94 Specification for Magnesium-Alloy Die Castings
3.1.5 For inch-pound orders specify B93; for metric orders
B199 Specification for Magnesium-Alloy Permanent Mold
specify B93M. Do not mix units.
Castings
B403 Specification for Magnesium-Alloy Investment Cast- 4. Chemical Composition
ings
4.1 The ingots shall conform to the chemical composition
limits prescribed in Table 1 for sand cast alloys and permanent
1
This specification is under the jurisdiction of ASTM Committee B07 on Light
mold-cast alloys and in Table 2 for die-cast alloys. Confor-
Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on
mance shall be determined by the manufacturer by analyzing
Magnesium Alloy Cast and Wrought Products.
Current edition approved Dec. 7, 2009. Published February 2010. Originally samples taken at the time the ingots are poured or samples
approved in 1934. Last previous edition approved in 2007 as B93/B93M – 07. DOI:
taken from the ingots. If the manufacturer has determined the
10.1520/B0093_B0093M-09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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B93/B93M−09
2
TABLE 1 Chemical Requirements for Alloy Ingot for Remelt to Sand, Permanent Mold and Investment Castings—Composition%
Others Total
A
Mag- Alumi- Copper, Gadol- Iron, Lithium, Manga- Neody- Nickel, Rare Silicon, Zir-
Alloy
UNS Silver Yttrium Zinc each, Others,
ASTM nesium num max inium max max nese mium max Earths max conium
B B
max max
AM100A M10101 remainder 9.4–10.6 0.08 . . . 0.
...
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:B93/B93M–07 Designation: B93/B93M – 09
Standard Specification for
Magnesium Alloys in Ingot Form for Sand Castings,
1
Permanent Mold Castings, and Die Castings
This standard is issued under the fixed designation B93/B93M; 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.
This standard has been approved for use by agencies of the Department of Defense.
Note—Table 1 was corrected editorially and the year date changed on Dec. 7, 2009.
1. Scope *
1.1 This specification covers magnesium alloys in ingot form for remelting for the manufacture of sand castings, permanent
mold castings, investment castings, and die castings.
NOTE 1—Supplementary information pertaining to the alloys covered by this specification when used in the form of castings is given in Specifications
B80, B94, B199 and B403.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each
system are not exact equivalents; therefore, each system shall be used independently of the other.
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 health practices and determine the applicability of regulatory
limitations prior to use.
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:
B80 Specification for Magnesium-Alloy Sand Castings
B94 Specification for Magnesium-Alloy Die Castings
B199 Specification for Magnesium-Alloy Permanent Mold Castings
B403 Specification for Magnesium-Alloy Investment Castings
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
E35 Test Methods for Chemical Analysis of Magnesium and Magnesium Alloys
E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. Ordering Information
3.1 Orders for ingot to this specification shall include the following information:
3.1.1 Quantity in pounds (kilograms)
3.1.2 Alloy (Section 4 and Table 1 or Table 2), and
3.1.3 Form: as agreed upon between the purchaser and seller. Some forms in commercial use are:
1
This specification is under the jurisdiction ofASTM Committee B07 on Light Metals andAlloys and is the direct responsibility of Subcommittee B07.04 on Magnesium
Alloy Cast and Wrought Products.
Current edition approved June 1, 2007. Published June 2007. Originally approved in 1934. Last previous edition approved in 2006 as B93/B93M–06. DOI:
10.1520/B0093_B0093M-07.
Current edition approved Dec. 7, 2009. Published February 2010. Originally approved in 1934. Last previous edition approved in 2007 as B93/B93M – 07. DOI:
10.1520/B0093_B0093M-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B93/B93M – 09
2
TABLE 1 Chemical Requirements for Alloy Ingot for Remelt to Sand, Permanent, Mold and Investment Castings—Composition %
Others Total
A
Alloy Mag- Alumi- Copper, Gadol- Iron, Lithium, Manga- Neody- Nickel, Rare Silicon, Zir-
UNS Silver Yttrium Zinc each, Others,
ASTM nesium num max inium max max nese mium max Earths max conium
B B
max max
AM100A M10101 remainder 9.4–10.6 0.08 . . . 0.13–0.35 . 0.010 . 0.20 . . 0.2 max . . 0.30
AZ63A M11631 remainder 5.5–6.5 0.20 . . . 0.15–0.35 . 0.010 . 0.20 . . 2.7–3.3 . . 0.30
AZ81A M11811 remainder 7.2–8.0 0.08 . . . 0.15–0.35 . 0.010 . 0.20 . . 0.5–0.9 . . 0.30
AZ91C M11915 remainder 8.3–9.2 0.0
...
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