ASTM B644-11(2017) Standard Specification for Copper Alloy Addition Agents.pdf
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1、Designation: B644 11 (Reapproved 2017)Standard Specification forCopper Alloy Addition Agents1This standard is issued under the fixed designation B644; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A num
2、ber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification establishes the requirements for
3、 cop-per nickel, ferro copper, phosphor copper, and silicon coppermaster alloys in ingot, shot, and waffle form to be used asaddition agents for cast and wrought alloys.1.2 UnitsValues stated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversio
4、ns to SI units that are provided forinformation only and are not considered standard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Gu
5、ides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B846 Terminology for Copper and Copper AlloysE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE255 P
6、ractice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE54 Test Methods for Chemical Analysis of Special Brassesand Bronzes (Withdrawn 2002)3E62 Test Methods for Chemical Analysis of Copper andCopperAlloys (Photometric Methods) (Withdrawn 2010)3E76 Test Methods for
7、 Chemical Analysis of Nickel-CopperAlloys (Withdrawn 2003)3E478 Test Methods for Chemical Analysis of Copper AlloysE1371 Test Method for Gravimetric Determination of Phos-phorus in Phosphorus-Copper Alloys or Phosphorus-Copper-Silver Alloys (Withdrawn 2006)32.2 ISO Standard:4No. 4748 Determination o
8、f Iron Content; Na2EDTA Titri-metric Method3. Terminology3.1 For definitions of terms related to copper and copperalloys, refer to Terminology B846.4. Ordering Information4.1 Include the following information when placing ordersfor product under this specification, as applicable:4.1.1 ASTM designati
9、on and year of issue (for exampleB644 XX).4.1.2 Alloy number and letter; generic name (Table 1),4.1.3 Form; size, weight, screen distribution,4.1.4 Quantity or total weight; each form, size, weight,screen distribution.5. Material and Manufacture5.1 Material:5.1.1 Any material may be used which, when
10、 melted, willform an alloy of the required composition.5.2 Manufacture:5.2.1 Any manufacturing process may be used that willyield a product uniform in composition and free of defects ofa nature that would render the product unsuitable for theintended application.6. Chemical Composition6.1 The produc
11、t in final form shall conform to the require-ments prescribed in Table 1 for the specified alloy.6.1.1 These specification limits do not preclude the presenceof other elements. Limits may be established and analysisrequired for unnamed elements by agreement between themanufacturer and the purchaser.
12、1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.05 onCastings and Ingots for Remelting.Current edition approved April 1, 2017. Published April 2017. Originallyapproved in 1982. Last previous edition ap
13、proved in 2011 as B644-11. DOI:10.1520/B0644-11R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last
14、approved version of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100
15、Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Rec
16、ommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.17. Sampling7.1 The inspection lot size, portion size, and selection ofportion pieces shall be as follows:7.1.1 Lot SizeAn inspection lot shall consist of all productfrom a single heat.7.1.2 Portion Size:
17、7.1.2.1 Ingot and ShotThe portion size shall be not lessthan 1 ingot.7.1.2.2 Shot and WaffleThe portion size for product in shotor waffle form shall be not less than 1 lb (0.453 kg) and shallbe selected to consist of an average of all sizes of product in thelot.7.1.3 Selection of Portion PiecesThe i
18、ndividual piecesshall be randomly selected.7.2 Chemical Analysis:7.2.1 The sample for chemical analysis shall be taken fromthe pieces selected in 7.1.2 in accordance with Practice E255.The minimum weight of the composite sample shall be 150 g.7.2.2 Instead of sampling in accordance with Practice E25
19、5,the manufacturer shall have the option of sampling during thepouring of the product. At least two samples shall be taken foreach lot poured from the same source of molten metal.7.2.2.1 When the manufacturer determines chemical com-position during the course of manufacture, sampling of thefinished
20、product is not required.8. Number of Tests and Retests8.1 Tests:8.1.1 Chemical AnalysisComposition shall be determinedas the average of results from at least two replicate determi-nations for each element specified in Table 1 for the specifiedalloy.8.2 Retests:8.2.1 Chemical Analysis:8.2.1.1 When re
21、quested by the manufacturer or supplier, aretest shall be permitted should test results obtained by thepurchaser fail to conform with the requirements of Table 1 forthe specified alloy.8.2.1.2 The retest shall be as directed in 8.1 except thenumber of replicate determinations shall be twice that nor
22、mallyrequired by this specification.All determinations shall conformto specification requirements. Failure to comply shall be causefor lot rejection.9. Specimen Preparation9.1 Chemical CompositionPreparation of the analyticalspecimen shall be the responsibility of the reporting laboratory.10. Test M
23、ethods10.1 Test methods used for quality control or productioncontrol, or both, for the determination of conformance tochemical compositional requirements are discretionary.10.1.1 Test methods used for obtaining data for the prepa-ration of certification or test report shall be made available tothe
24、purchaser on request.10.2 Chemical Composition:10.2.1 In case of disagreement, the test method to befollowed for a specific element and concentration shall be asindicated in the following table:Element Range or Max % MethodAluminum 0.25 E478Carbon 0.05 E76Copper 99.75 E478Iron 1.25 E4789.011.0 ISO 4
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