ASTM B686/B686M-14

Standard Specification for Aluminum Alloy Castings, High-Strength

ABSTRACT
This specification covers aluminum-alloy high-strength castings in the following designations: A12010, A03540, A33550, A13560, and A13570. Castings covered by this specification are intended for use in airframe, missile, and other critical applications where high strength, ductility, and sound castings are required. Castings shall be classified by inspection classes: Class 1, Class 2, Class 3, and Class 4 and shall be specified as Grade A, Grade B, Grade C, or Grade D based on radiographic quality. Requirements for the casting process, chemical composition analysis, preproduction sample, radiographic soundness and mechanical property control (including foundry control and acceptance procedure), heat treatment, tensile testing, and dimensions are detailed. The castings shall conform to the chemical composition prescribed for silicon, iron, copper, manganese, magnesium, zinc, titanium, and aluminum, and to the specified mechanical properties such as tensile strength, yield strength and elongation.
SCOPE
1.1 This specification covers aluminum-alloy high-strength castings designated as shown in Table 1.  (A) “Others” includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not specified in the specification. However, such analysis is not required and may not cover all metallic “Others” elements. Should any analysis by the producer or the purchaser establish that an “Others” element exceeds the limit of “Each” or that the aggregate of several “Others” elements exceeds the limit of “Total,” the material shall be considered nonconforming.(B) Other Elements—Total shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.(C) Silver 0.40 to 1.0 %.(D) Beryllium 0.04–0.07.  
1.2 Castings covered by this specification are intended for use in airframe, missile, and other critical applications where high strength, ductility, and sound castings are required.  
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 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 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 regular limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Sep-2014
• ICS: 77.150.10 - Aluminium products
• Technical Committee: B07 - Light Metals and Alloys
• Drafting Committee: B07.01 - Aluminum Alloy Ingots and Castings

Relations

• Replaces: ASTM B686/B686M-11 - Standard Specification for Aluminum Alloy Castings, High-Strength
• Effective Date: 01-Oct-2014
• Referred By: ASTM B179-18 - Standard Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
• Effective Date: 01-Oct-2014
• Referred By: ASTM B917/B917M-12(2020) - Standard Practice for Heat Treatment of Aluminum-Alloy Castings From All Processes
• Effective Date: 01-Oct-2014

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B686/B686M −14
Standard Specification for
1
Aluminum Alloy Castings, High-Strength
This standard is issued under the fixed designation B686/B686M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
2
1. Scope* 2.2 ASTM Standards:
B179 Specification for Aluminum Alloys in Ingot and Mol-
1.1 This specification covers aluminum-alloy high-strength
ten Forms for Castings from All Casting Processes
castings designated as shown in Table 1.
B275 PracticeforCodificationofCertainZinc,TinandLead
Die Castings
1.2 Castings covered by this specification are intended for
B557 Test Methods for Tension Testing Wrought and Cast
use in airframe, missile, and other critical applications where
Aluminum- and Magnesium-Alloy Products
high strength, ductility, and sound castings are required.
B557M Test Methods for Tension Testing Wrought and Cast
1.3 Alloy and temper designations are in accordance with
Aluminum- and Magnesium-Alloy Products (Metric)
ANSI H35.1/H35.1 (M). The equivalent Unified Numbering
B660 Practices for Packaging/Packing of Aluminum and
System alloy designations are in accordance with Practice
Magnesium Products
E527.
B881 Terminology Relating toAluminum- and Magnesium-
Alloy Products
1.4 Unless the order specifies the “M” specification
B917/B917M Practice for Heat Treatment of Aluminum-
designation, the material shall be furnished to the inch-pound
Alloy Castings from All Processes
units.
B985 Practice for SamplingAluminum Ingots, Billets, Cast-
1.5 For acceptance criteria for inclusion of new aluminum ings and Finished or Semi-Finished Wrought Aluminum
Products for Compositional Analysis
and aluminum alloys and their properties in this specification,
D3951 Practice for Commercial Packaging
see Annex A1 and Annex A2.
E29 Practice for Using Significant Digits in Test Data to
1.6 Units—The values stated in either SI units or inch-
Determine Conformance with Specifications
pound units are to be regarded separately as standard. The
E34 Test Methods for Chemical Analysis of Aluminum and
values stated in each system may not be exact equivalents;
Aluminum-Base Alloys
therefore,eachsystemshallbeusedindependentlyoftheother.
E94 Guide for Radiographic Examination
Combining values from the two systems may result in non-
E155 Reference Radiographs for Inspection of Aluminum
conformance with the standard.
and Magnesium Castings
E165 Practice for Liquid Penetrant Examination for General
1.7 This standard does not purport to address all of the
Industry
safety concerns, if any, associated with its use. It is the
E527 Practice for Numbering Metals and Alloys in the
responsibility of the user of this standard to establish appro-
Unified Numbering System (UNS)
priate safety and health practices and determine the applica-
E607 Test Method for Atomic Emission Spectrometric
bility of regular limitations prior to use.
Analysis Aluminum Alloys by the Point to Plane Tech-
3
nique Nitrogen Atmosphere (Withdrawn 2011)
2. Referenced Documents
E716 Practices for Sampling and Sample Preparation of
2.1 The following documents of the issue in effect on the Aluminum and Aluminum Alloys for Determination of
date of purchase form a part of this specification to the extent Chemical Composition by Spectrochemical Analysis
referenced herein: E1251 Test Method for Analysis of Aluminum and Alumi-
num Alloys by Spark Atomic Emission Spectrometry
1 2
This specification is under the jurisdiction of ASTM Committee B07 on Light For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Aluminum Alloy Ingots and Castings. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2014. Published October 2014. Originally the ASTM website.
3
approved in 1981. Last previous edition approved in 2011 as B686/B686M – 11. The last approved version of this historical standard is referenced on
DOI: 10.1520/B0686_B0686M-14. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B686/B686M−14
TABLE 1 Chemical Composition Limits
NOTE 1—When single units are shown, they indicate the maximum amounts permitted.
NOTE 2—Analysis shall be made for the elements for which limits are shown in this table.
NOTE 3—The following applies to all specified limits in th
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B686/B686M − 11 B686/B686M − 14
Standard Specification for
1
Aluminum Alloy Castings, High-Strength
This standard is issued under the fixed designation B686/B686M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers aluminum-alloy high-strength castings designated as shown in Table 1.
1.2 Castings covered by this specification are intended for use in airframe, missile, and other critical applications where high
strength, ductility, and sound castings are required.
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 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 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 regular
limitations prior to use.
2. Referenced Documents
2.1 The following documents of the issue in effect on the date of purchase form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
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
B985 Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for
Compositional Analysis
D3951 Practice for Commercial Packaging
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
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
1
This specification is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on Aluminum
Alloy Ingots and Castings.
Current edition approved May 1, 2011Oct. 1, 2014. Published June 2011October 2014. Originally approved in 1981. Last previous edition approved in 20102011 as
B686/B686M – 10.B686/B686M – 11. DOI: 10.1520/B0686_B0686M-11.10.1520/B0686_B0686M-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B686/B686M − 14
TABLE 1 Chemical Composition Limits
NOTE 1—When single units are shown, they indicate the maximum amounts permitted.
NOTE 2—Analysis shall be made for the elements for which limits are shown in this table.
NOTE 3—The following applies to all specified limits in this table: For purposes of determining conformance to these limits, an observed value or a
calculated value
...