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ASTM B403-07

(Specification)

Standard Specification for Magnesium-Alloy Investment Castings

Standard Specification for Magnesium-Alloy Investment Castings

ABSTRACT
This specification covers magnesium-alloy investment castings designated as AM100A, AZ81A, AZ91C, AZ91E, AZ92A, EQ21A, EZ33A, K1A, QE22A, ZE41A, and ZK61A. Sufficient stock shall be allowed for shrinkage and, where required, for finishing; but castings of excessive weight shall not be furnished. The castings shall conform to the chemical composition requirements prescribed for magnesium, aluminum, manganese, zinc, zirconium, rare earth elements, copper, nickel, silicon, iron, and other impurities, as determined by chemical analysis, and shall meet the specified requirements for the tensile properties such as tensile strength, yield strength, and elongation. Requirements for heat treatment and tensile test are detailed. The castings shall be of uniform quality and condition, free from cracks and other injurious defects, shall be cleaned before inspection by blasting or other approved process, and shall not be repaired by welding, impregnation, peening, or other method unless it is required.
SCOPE
1.1 This specification covers magnesium-alloy investment castings designated as shown in Table 1.
1.2 Alloy designations are in accordance with Practice E 527; temper designations are in accordance with Practice B 296.
1.3 The values stated in inch-pound units are to be regarded as the standard. The SI values in parentheses are for information only.

General Information

Status
Historical
Publication Date
31-May-2007
ICS
77.150.20 - Magnesium products
Technical Committee
B07 - Light Metals and Alloys
Drafting Committee
B07.04 - Magnesium Alloy Cast and Wrought Products
Current Stage
Ref Project

Relations

Replaces
ASTM B403-02 - Standard Specification for Magnesium-Alloy Investment Castings
Effective Date
01-Jun-2007
Referred By
ASTM B881-17 - Standard Terminology Relating to Aluminum- and Magnesium-Alloy Products
Effective Date
01-Jun-2007
Referred By
ASTM B951-11(2018) - Standard Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and Wrought
Effective Date
01-Jun-2007
Referred By
ASTM B93/B93M-21 - Standard Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings
Effective Date
01-Jun-2007
Referred By
ASTM F3160-21 - Standard Guide for Metallurgical Characterization of Absorbable Metallic Materials for Medical Implants
Effective Date
01-Jun-2007

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ASTM B403-07 - Standard Specification for Magnesium-Alloy Investment Castings
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B403 −07
StandardSpecification for
1
Magnesium-Alloy Investment Castings
This standard is issued under the fixed designation B403; 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.
3
1. Scope* Magnesium Alloys (Withdrawn 2008)
E88 Practice for Sampling Nonferrous Metals and Alloys in
1.1 This specification covers magnesium-alloy investment
Cast Form for Determination of Chemical Composition
castings designated as shown in Table 1.
E94 Guide for Radiographic Examination
1.2 Alloy designations are in accordance with Practice E155 Reference Radiographs for Inspection of Aluminum
E527; temper designations are in accordance with Practice and Magnesium Castings
B296. E165 Practice for Liquid Penetrant Examination for General
Industry
1.3 The values stated in inch-pound units are to be regarded
E527 Practice for Numbering Metals and Alloys in the
as the standard. The SI values in parentheses are for informa-
Unified Numbering System (UNS)
tion only.
2.3 Federal Standards:
4
Fed. Std. No. 123 Marking for Shipping (Civil Agencies)
2. Referenced Documents
2.4 Military Standards:
2.1 The following documents of the issue in effect on the
MIL-STD-129 Marking for Shipment and Storage (Military
date of order acceptance form a part of this specification to the 4
Agencies)
extent referenced herein:
2
3. Ordering Information
2.2 ASTM Standards:
B296 Practice for Temper Designations of Magnesium
3.1 Orders for castings under this specification shall include
Alloys, Cast and Wrought
the following information:
B557 Test Methods for Tension Testing Wrought and Cast
3.1.1 Quantity of each casting,
Aluminum- and Magnesium-Alloy Products
3.1.2 Alloy (Section 6 and Table 1),
B660 Practices for Packaging/Packing of Aluminum and
3.1.3 Temper (see 5.1 and Table 2),
Magnesium Products
3.1.4 Casting drawing giving all necessary dimensions and
B661 Practice for Heat Treatment of Magnesium Alloys
showing amount of finish left for machining,
B666/B666M Practice for Identification Marking of Alumi-
3.1.5 Surface treatment (see 10.1),
num and Magnesium Products
3.1.6 Whether certification is required (see 11.1),
B951 PracticeforCodificationofUnalloyedMagnesiumand
3.1.7 Whether inspection is required at the manufacturer’s
Magnesium-Alloys, Cast and Wrought works (see 12.1), and
D3951 Practice for Commercial Packaging
3.1.8 Special inspection requirements (see 12.3).
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications 4. Materials and Manufacture
E35 Test Methods for ChemicalAnalysis of Magnesium and
4.1 The responsibility for furnishing castings that can be
laid out and machined to the finished dimensions within the
permissible variations specified, as shown on the drawings,
1
This specification is under the jurisdiction of ASTM Committee B07 on Light shall rest with the manufacturer, except where mold equipment
Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on
is furnished by the purchaser. Sufficient stock shall be allowed
Magnesium Alloy Cast and Wrought Products.
CurrenteditionapprovedJune1,2007.PublishedJuly2007.Originallyapproved
in 1963. Last previous edition approved in 2002 as B403 – 02. DOI: 10.1520/
3
B0403-07. The last approved version of this historical standard is referenced on
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.org.
4
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.
*A Summary 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 ----------------------
B403−07
A
TABLE 1 Chemical Composition Limits
NOTE1—Analysisshallregularlybemadefortheelementsspecificallymentionedinthistable.If,however,thepresenceofotherelementsissuspected
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 applied 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 off to the nearest
...

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1.1 This specification covers magnesium alloy forgings designated as shown in Table 1. (A) Limits are in weight percent maximum unless shown as a range or stated otherwise.(B) These alloy designations were established in accordance with Practice B951.(C) Includes listed elements for which no specific limit is shown.  
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