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Doplňujúce informácie

ASTM B199-17

Standard Specification for Magnesium-Alloy Permanent Mold Castings

NORMA vydaná dňa 1.5.2017

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Prevedenie	PDF - okamžité stiahnutie - 66.40 € PDF + redline - ihneď - 79.70 € Tlačené - 66.40 € Tlač + redline - 79.70 €
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66.40 €

Informácie o norme:

Označenie normy: ASTM B199-17
Dátum vydania normy: 1.5.2017
Kód tovaru: NS-683200
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM B199-17 :

This specification covers magnesium alloy permanent mold casting. The castings may be subjected to the heat treatment necessary to produce material that will conform to the requirements specified. Heat treatment shall be performed on the whole of a casting, never on a part only, and shall be applied in a manner that will produce the utmost uniformity. The castings shall be of uniform quality and condition, free of cracks or other injurious defects, and shall be well cleaned by sand blasting or any other approved process before inspection. The material shall conform to the chemical composition limits prescribed. Any suitable method of chemical analysis may be used. Unless otherwise specified, heat treatment for the applicable tempers designated shall be in accordance with practice B 661 or with Military Specification MIL-M-6857. The tension test specimens representing the castings shall conform to the requirements specified. At least one tension test specimen shall be cast from each melt of 2000 lb (907 kg) or fraction thereof to represent the castings poured from the same melt. The tension tests shall be made in accordance with test methods B 557.

Keywords:

casting grade, certification, chemical compositions, ductility, gravity die castings, low pressure die castings, ordering information, rejection criteria, strength requirements, tensile properties,, ICS Number Code 77.150.20 (Magnesium products)

Doplňujúce informácie

1. Scope

1.1 This specification covers magnesium alloy permanent mold casting alloys 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 given 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.

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

AMS 2768	Heat Treatment of Magnesium Alloy Castings
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
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E88-11(2017)	Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
E155-20	Standard Reference Radiographs for Inspection of Aluminum and Magnesium Castings
B954-23	Standard Test Method for Analysis of Magnesium and Magnesium Alloys by Atomic Emission Spectrometry
B557-15(2023)	Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
E8-04	Standard Test Methods for Tension Testing of Metallic Materials
E94-04	Standard Guide for Radiographic Examination
Fed. Std. No. 123	Marking for Shipment (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.
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E165-09	Standard Practice for Liquid Penetrant Examination for General Industry
B660-23	Standard Practices for Packaging/Packing of Aluminum and Magnesium Products
B661-12(2020)	Standard Practice for Heat Treatment of Magnesium Alloys
B296-20	Standard Practice for Temper Designations of Magnesium Alloys, Cast and Wrought

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