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This specification covers the material, chemical and mechanical requirements for aluminum-alloy castings produced by the thixocast, rheocast, semi-solid and squeeze casting processes. It does not apply to castings used in aerospace applications. Castings shall conform to the chemical composition limits and tensile properties specified for each alloy designation, and those produced for governmental or military agencies, or both, shall additionally adhere to specified material and foundry control requirements. Castings shall also pass quality checks based on the following attributes: imperfections; internal soundness; pressure tightness; fillets, ribs, and corners; ejector pins, pin marks, pin flash, and flash removal; casting flash removal; surface finish; die cast lettering and ornamentation; machining stock allowances; and workmanship. Heat treatment and repair recommendations are also included herein.
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.
1.1 This specification covers aluminum-alloy castings, produced by the thixocast, rheocast, semi-solid and squeeze casting processes, shown in Table 1.
1.2 This specification is not intended for castings used in aerospace applications.
1.3 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent unified numbering system alloy designations are in accordance with Practice E527.
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 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 non-conformance 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B179 Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
B275 Practice for Codification of Certain Nonferrous Metals and Alloys, Cast and Wrought
B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
B660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products
B917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
D3951 Practice for Commercial Packaging
E8/E8M Test Methods for Tension Testing of Metallic Materials
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
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
E94 Guide for Radiographic Examination
E155 Reference Radiographs for Inspection of Aluminum and Magnesium Castings
E165 Practice for Liquid Penetrant Examination for General Industry
E505 Reference Radiographs for Inspection of Aluminum and Magnesium Die Castings
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E607 Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere
E716 Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spectrochemical Analysis
E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry
E2422 Digital Reference Images for Inspection of Aluminum Castings
ANSI StandardH35.1/H35.1(M)-2006 American National Standard Alloy and Temper Designation Systems for Aluminum
NADCA Standards#403 Product Specification Standards for Die Castings Produced by the Semi-Solid and Squeeze Casting Processes
ICS Number Code 77.150.10 (Aluminium products)
UNSPSC Code 31102701(Aluminum squeeze casting); 31102801(Aluminum semi solid casting)