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Description of ASTM-B94 2013ASTM B94 - 13Standard Specification for Magnesium-Alloy Die CastingsActive Standard ASTM B94 | Developed by Subcommittee: B07.04 Book of Standards Volume: 02.02 ASTM B94Abstract This specification covers magnesium-alloy die castings. The magnesium alloys used for the manufacture of die castings shall conform to the chemical composition requirements of this specification. The producer or supplier is responsible for the performance of all inspection and test requirements when specified in the contract or purchase order. Samples for chemical analysis shall be taken from the material by drilling, sawing, milling, turning, or clipping a representative piece or pieces to obtain a weight of prepared sample the soundness of die castings which shall conform to standards or requirements agreed upon between the producer or supplier and the purchaser. Die castings shall have uniform quality that is free from injurious discontinuities that will adversely affect their serviceability. All castings shall be properly marked for identification with the part number, name or brand of the producer, as agreed upon the contract. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. 1. Scope 1.1 This specification covers magnesium-alloy die castings. Current alloy compositions are specified under the designations shown in Table 1 . 2
A 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
the course of routine analysis, further analysis shall be made to determine that these other elements are not in excess of 0.3 %.
B 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
should be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limit in accordance with the rounding procedure prescribed in Section 3 of
Practice E29 .
C Where single units are shown, these indicate the maximum amounts permitted.
D ASTM alloy designations were established in accordance with Practice B951 , UNS designations were established in accordance with Practice E527 .
E In alloys AS41B, AM50A, AJ52A, AM60B, AJ62A, and AZ91D, if either the minimum manganese limit or the maximum iron limit is not met, then the iron/manganese ratio shall
not exceed 0.010, 0.015, 0.015, 0.021, 0.021, and 0.032, respectively.
F Alloys AJ52A, AJ62A, and AS21B are patented compositions for elevated temperature applications. Interested parties are invited to submit information regarding the
identification of alternatives to these compositions to ASTM International. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you
may attend. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are
expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
1.2 The values stated in inch-pound units are 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 health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards B93/B93M Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products B660 Practices for Packaging/Packing of Aluminum and Magnesium Products B951 Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and Wrought B953 Practice for Sampling Magnesium and Magnesium Alloys for Spectrochemical Analysis B954 Test Method for Analysis of Magnesium and Magnesium Alloys by Atomic Emission Spectrometry E23 Test Methods for Notched Bar Impact Testing of Metallic Materials E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition E505 Reference Radiographs for Inspection of Aluminum and Magnesium Die Castings E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) Federal Standards FED-STD-123 Marking for Shipment (Civil Agencies) SAE AMS-STD-184 Identification Marking of Aluminum, Magnesium and TitaniumMilitary Standard MIL-STD-129 Marking for Shipment and StorageAmerican Die Casting Institute E SeriKeywords casting characteristics; composition; high pressure die cast alloy; magnesium; mechanical properties; performance characteristics; ICS Code ICS Number Code 77.150.20 (Magnesium products) DOI: 10.1520/B0094 ASTM International is a member of CrossRef. ASTM B94The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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