ASTM B403-20

Standard Specification for Magnesium-Alloy Investment Castings

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STANDARD published on 1.11.2020

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The information about the standard:

Designation standards: ASTM B403-20
Publication date standards: 1.11.2020
SKU: NS-1012985
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Magnesium products

Annotation of standard text ASTM B403-20 :

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.

Keywords:
investment castings, magnesium alloy,, ICS Number Code 77.150.20 (Magnesium products)

Additional information

1. 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 E527; temper designations are in accordance with Practice B296.

1.3?The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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

E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
Fed. Std. No. 123	Marking for Shipping (Civil Agencies) Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
E165-09	Standard Practice for Liquid Penetrant Examination for General Industry
E88-11(2017)	Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
B954-23	Standard Test Method for Analysis of Magnesium and Magnesium Alloys by Atomic Emission Spectrometry
B661-12(2020)	Standard Practice for Heat Treatment of Magnesium Alloys
E155-20	Standard Reference Radiographs for Inspection of Aluminum and Magnesium Castings
E94-04	Standard Guide for Radiographic Examination
MIL-STD-129	Marking for Shipment and Storage (Military Agencies)
D3951-18(2023)	Standard Practice for Commercial Packaging
B953-21	Standard Practice for Sampling Magnesium and Magnesium Alloys for Spectrochemical Analysis
B951-11(2018)	Standard Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and Wrought
B666/B666M-20	Standard Practice for Identification Marking of Aluminum and Magnesium Products
B296-20	Standard Practice for Temper Designations of Magnesium Alloys, Cast and Wrought
B557-15(2023)	Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B660-23	Standard Practices for Packaging/Packing of Aluminum and Magnesium Products

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