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Norma ASTM B618/B618M-18e1 15.5.2018 náhled

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ASTM B618/B618M-18e1

Standard Specification for Aluminum-Alloy Investment Castings (Includes all amendments and changes 4/2/2021).

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NORMA vydána dne 15.5.2018

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Informace o normě:

Označení normy: ASTM B618/B618M-18e1
Datum vydání normy: 15.5.2018
Kód zboží: NS-856411
Počet stran: 14
Přibližná hmotnost: 42 g (0.09 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM B618/B618M-18e1 :

This specification covers aluminum-alloy investment castings. Unless otherwise specified, only aluminum alloy conforming to the requirements shall be used in the remelting furnace from which molten metal is taken for pouring directly into castings. The castings shall conform to the chemical composition requirements specified. The determination of chemical composition shall be made in accordance with suitable chemical (test methods E 34), or spectrochemical (test methods E 607 and E 1251) methods. Unless otherwise specified, only aluminum alloy conforming to the requirements shall be used in the remelting furnace from which molten metal is taken for pouring directly into castings. Foundry control shall consist of examination of castings by radiographic or other approved methods for determining internal discontinuities until the gating, pouring, and other foundry practices have been established to produce castings meeting the required quality standards. The tensile properties shall be determined in accordance with test methods B 557 and B 557M. Heat treatment of castings shall be performed in accordance with practice B 917/B 917M.

Keywords:

aluminum, investment casting ,, ICS Number Code 77.150.10 (Aluminium products)

Doplňující informace

1. Scope

1.1 This specification covers aluminum-alloy investment castings designated as shown in Table 1.

1.2 This specification is for aluminum-alloy investment castings used in general purpose applications. It may not address the mechanical properties integrity testing and verification required for highly loaded or safety critical applications.

1.3 Alloy and temper designations are in accordance with ANSI H35.1/H35.1 (M).

1.4 Unless the order specifies the “M” specification designation, the material shall be furnished to the inch-pound units.

1.5 For acceptance criteria for inclusion of new aluminum and aluminum alloys and their properties in this specification, see Annex A1 and Annex A2.

1.6 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 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
E155-20	Standard Reference Radiographs for Inspection of Aluminum and Magnesium Castings
E94-04	Standard Guide for Radiographic Examination
E34-11	Standard Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
D3951-18(2023)	Standard Practice for Commercial Packaging
B179-18	Standard Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
E1251-17a	Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry (Includes all amendments and changes 10/26/2017).
B985-12(2016)	Standard Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for Compositional Analysis
E2422-22	Standard Digital Reference Images for Inspection of Aluminum Castings
IEEE/ASTM SI 10	Standard for Use of the International System of Units (SI): The Modern Metric System
H35.1/H35.1 (M)-2006	American National Standard Alloy and Temper Designation Systems for Aluminum
B881-17	Standard Terminology Relating to Aluminum- and Magnesium-Alloy Products
E716-16(2021)e2	Standard Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spark Atomic Emission Spectrometry (Includes all amendments and changes 9/7/2022).
E607-02	Standard Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere
B275-14	Standard Practice for Codification of Certain Zinc, Tin and Lead Die Castings (Withdrawn 2020)
B917/B917M-12(2020)	Standard Practice for Heat Treatment of Aluminum-Alloy Castings From All Processes
B557-15(2023)	Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B557M-15(2023)	Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
B660-23	Standard Practices for Packaging/Packing of Aluminum and Magnesium Products
E165-09	Standard Practice for Liquid Penetrant Examination for General Industry

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