1、Designation: B379 11Standard Specification forPhosphorized CoppersRefinery Shapes1This standard is issued under the fixed designation B379; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pare
2、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification establishes the requirements for phos-phorized copper wire bars, billets, and cakes.NOTE 1Wire bars furnished under this specific
3、ation do not conform indimensions with that furnished under Specification B5.1.2 UnitsValues stated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units, which are provided forinformation only and are not considered standard.1.3 T
4、he following safety hazard caveat pertains only to thetest method in sections 14.2 and 14.3 in this specification.1.3.1 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate
5、 safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B5 Specification for High Conductivity Tough-Pitch Cop-per Refinery ShapesB193 Test Method for Resistivity of Electrical ConductorMaterialsB224 Classificati
6、on of CoppersB577 Test Methods for Detection of Cuprous Oxide (Hy-drogen Embrittlement Susceptibility) in CopperB846 Terminology for Copper and Copper AlloysE3 Guide for Preparation of Metallographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant
7、 Digits in Test Data toDetermine Conformance with SpecificationsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)3E255 Practice for Sampling Copper and Copper Alloys forthe Determination
8、 of Chemical Composition3. Terminology3.1 For definitions of terms related to copper and copperalloys, refer to Terminology B846.3.2 Definitions of Terms Specific to This Standard:3.2.1 copper, oxygen-freeelectrolytic copper producedwithout the use of metallic or metalloidal deoxidizers, free ofcupr
9、ous oxide as determined by metallographic examination at753 under polarized light.4. Ordering Information4.1 Contracts or purchase orders for product under thisspecification should include the following information:4.1.1 ASTM designation and year of issue (for example,B379 XX),4.1.2 Copper UNS Numbe
10、r (for example, C10800),4.1.3 Shape required: wire bar, billet or cake,4.1.3.1 Billet end type,4.1.4 Dimensions and tolerances (Section 10), and4.1.5 Quantity; total weight or number of pieces for eachshape, size,4.2 The following are optional and should be specified inthe contract or purchase order
11、 when required:4.2.1 Hydrogen embrittlement test (Section 8),4.2.2 Certification (Section 19), and4.2.3 Test report (Section 20).5. Materials and Manufacture5.1 Material:5.1.1 The product furnished shall be produced from one ofthe following coppers as specified in the contract or purchaseorder:UNS N
12、os. Former3DescriptionC10300 OFXLP Oxygen-free, extra low phosphorusC10800 OFLP Oxygen-free, low phosphorusC12000 DLP Phosphorus deoxidized, low residualphosphorusC12200 DHP Phosphorus deoxidized, high residualphosphorusC14200 DPA Phosphorus deoxidized, arsenical1This specification is under the juri
13、sdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.07 onRefined Copper.Current edition approved April 1, 2011. Published May 2011. Originallyapproved in 1962. Last previous edition approved in 2004 as B379 04. DOI:10.1520/B0379-11.2For refer
14、enced 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.3Withdrawn. The last approved version of this historical standard is re
15、ferencedon www.astm.org.1*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.5.2 Manufacture:5.2.1 BilletsUnless specified otherwise, product up to andincluding 4 in. (102
16、mm) in diameter may be supplied shearedon one end with the other end flat. Billets over 4 in. in diametershall be supplied with both ends flat. Billets shall not be cuppedexcept by specific agreement between the manufacturer orsupplier and the purchaser at the time of purchase and theagreement shall
17、 be part of the contract or purchase order.6. Chemical Composition6.1 The product material shall conform to the requirementsprescribed in Table 1 for the specified copper.6.1.1 These specification limits do not preclude the presenceof other elements. Limits may be established and analysisrequired fo
18、r unnamed elements by agreement between themanufacturer, or supplier, and the purchaser.7. Physical Property Requirements7.1 Electrical Resistivity Requirement:7.1.1 The product furnished shall conform to the electricalmass resistivity requirement prescribed in Table 2, when testedin accordance with
19、 Test Method B193.7.1.2 The maximum mass resistivity for Copper UNS Nos.C10800 and C12000, in the annealed condition, shall be0.17081 ohm g/m2(conductivity 90 %, minimum, Interna-tional Annealed Copper Standard (IACS) at 68F (20C).8. Performance Requirements8.1 Reverse Bend Test (Hydrogen Embrittlem
20、ent Suscepti-bility):8.1.1 When specified in the contract or purchase order,specimens of product produced of coppers UNS Nos. C10300,C10800, and C12000 shall be capable of withstanding aminimum of four bends without fracturing when tested inaccordance with Test Method D of the current revision of Te
21、stMethods B577.9. Microscopical Examination9.1 Coppers UNS Nos. C10300, C10800, and C12000 shallbe essentially free of cuprous oxide as determined by exami-nation in accordance with Test Method A of the currentrevision of Test Methods B577.10. Dimensions, Mass, and Permissible Variations10.1 Wire Ba
22、rs:10.1.1 The manufacturer or supplier should be consulted fordimensions and shapes available.10.2 Billets:10.2.1 A variation of 65 % in weight and/or 6116 in. (62mm) in diameter from the manufacturers published list or thepurchasers specified size shall be considered good delivery forbillets up to
23、6 in. (152 mm) in diameter.10.2.2 A variation of 18 in. (3 mm) to +116 in. (+2 mm)in diameter and 62 % in length shall be permitted for billets 6in. (152 mm) and over in diameter.10.2.3 Deviation from straightness shall not exceed14 in. (6mm) in 4 ft (1219 mm) as measured at the center of the billet
24、.10.2.4 Special diameter tolerances are subject to agreementbetween the manufacturer or supplier and the purchaser.10.3 Cakes:10.3.1 A variation up to 5 % in weight or14 in. (6 mm) inany dimension shall be permitted for dimensions up to 8 in.(203 mm). A variation of 3 % in size shall be permitted fo
25、rdimensions greater than 8 in. (203 mm).11. Workmanship, Finish and Appearance11.1 The product shall be free from defects; but blemishesof a nature that do not interfere with the intended applicationare acceptable. The product shall be well cleaned and free fromdirt.12. Sampling12.1 The lot size, po
26、rtion size, and selection of samplepieces shall be as follows:12.1.1 Lot SizeAn inspection lot shall consist of all piecesin a shipment produced during a single production period.12.1.2 Portion Size One piece shall be randomly selectedfrom each 25 000 lb (11 340 kg) or fraction thereof.12.2 Chemical
27、 Composition:12.2.1 The sample for chemical analysis shall be taken inaccordance with Practice E255 from the piece(s) selected in12.1.2. The minimum weight of the composite sample shall be13 lb (150 g).4Refer to Table X1.1 of Classification B224 for former copper designations.TABLE 1 Chemical Requir
28、ementsCopper UNS No. TypeComposition, %Copper (IncludingSilver), minPhosphorus Arsenicmin max min maxC10300 OFXLP 99.95A0.001 0.005 . . . . . .C10800 OFLP 99.95A0.005 0.012 . . . . . .C12000 DLP 99.90 0.004 0.012 . . . . . .C12200 DHP 99.9 0.015 0.040 . . . . . .C14200 DPA 99.4B0.015 0.040 0.15 0.50
29、AIncludes phosphorus.BCopper (including phosphorus and arsenic) = 99.9 % min.TABLE 2 Electrical Resistivity Requirements for UNS nos.C10300. C 10800, and C12000Alloy Electrical Resistivity max. V.g/m2Conductivity % IACSAC10300 0.15614 98.16C10800 0.17081 90C12000 0.17081 90AInternational Annealed Co
30、pper Standard.B379 11212.2.2 Instead of sampling in accordance with PracticeE255, the manufacturer shall have the option of determiningcomposition from samples taken at the time the castings arepoured or from samples taken from semifinished product.When the manufacturer determines chemical compositi
31、onduring the course of manufacture, sampling of the finishedproduct by the manufacturer is not required. The number ofsamples to be taken for the determination of chemical compo-sition shall be as follows:12.2.2.1 When castings are poured, at least two samplesshall be taken, one at the beginning of
32、the pour and one at theend of the pour, for each group of castings poured from thesame source of molten metal.12.2.2.2 When taken from semi-finished product, at leasttwo samples shall be taken, each from a different piece, torepresent each 20 000 lb (9072 kg), or fraction thereof, exceptthat not mor
33、e than one sample shall be required per productpiece.12.3 Samples for All Other Tests:12.3.1 Specimens for all other tests shall be taken from thesample portion selected in 12.1.2 and be of a convenient size toaccommodate the tests.13. Number of Tests and Retests13.1 Tests:13.1.1 Chemical AnalysisCh
34、emical composition shall bedetermined as the per element mean of results from at least tworeplicate analyses of the sample(s).13.1.2 Other Tests:13.1.2.1 Electrical ResistivityThe individual test resultsfrom at least two specimens shall be reported.13.1.2.2 Hydrogen Embrittlement Test and Microscopi
35、calExaminationAt least two specimens shall be tested and eachshall meet the requirements of the test.13.2 Retests:13.2.1 When requested by the manufacturer or supplier, aretest shall be permitted when test results obtained by thepurchaser fail to conform with the requirement(s) of thisspecification.
36、13.2.2 Retesting shall be as directed in this specification forthe specific property except the number of test specimens shallbe twice that normally required for the test. Test results for alltest specimens shall conform to the requirement(s) of thisspecification in retest and failure to comply shal
37、l be cause forlot rejection.14. Specimen Preparation14.1 Chemical Analysis:14.1.1 Preparation of the analytical specimen shall be theresponsibility of the reporting laboratory.14.2 Electrical Resistivity:14.2.1 The specimen shall conform to the requirements ofthe Test Specimens section of Test Metho
38、d B193 and at leasttwo specimens shall be prepared.14.2.2 Each test specimen shall originate as a single piece oran appropriate size cut from a separate portion piece, whenpossible, selected in 12.1.2.14.2.3 Alternatively, the manufacturer shall have the optionof sampling the molten metal during the
39、 casting period bypouring at least two castings of suitable size.14.2.3.1 The test specimens shall be forged or hot rolled.The external oxide shall be removed and the specimens colddrawn into a wire approximately 0.080 in. (2.03 mm) indiameter (12 gage AWG) and of a length adequate for the test.A sp
40、ecimen shall be cut from one end of each wire and be ofa length sufficient to accommodate the testing equipment,annealed at approximately 932F (500C) for 30 min in aninert atmosphere, and rapidly cooled to ambient temperaturewithout undue exposure to air.14.3 Hydrogen Embrittlement:14.3.1 The test s
41、pecimens shall originate as a single piececut from a portion piece selected in 12.1.2.14.3.2 The test specimen shall be forged or hot rolled. Theexternal oxide shall be removed and the specimen cold drawninto a wire approximately 0.080 in. (2.03 mm) in diameter (12gage AWG) and of a length adequate
42、for the test. Not less thantwo specimens shall be cut from one end of the wire and be ofa length sufficient to accommodate the testing equipment.14.3.2.1 Alternatively, test specimens may be taken fromthe unused portion of the unannealed wire prepared for theelectrical resistivity test.14.3.3 The te
43、st specimens shall be annealed in an atmo-sphere containing not less than 15 %, volume/volume, ofhydrogen for 20 to 40 min in a furnace held at 1472 to 1607F(800 to 875C) and then rapidly cooled to ambient temperaturewithout undue exposure to air.14.4 Microscopical Examination:14.4.1 Test specimen p
44、reparation shall be in accordancewith Methods E3.15. Test Methods15.1 Test methods used for quality control or productioncontrol, or both, for the determination of conformance withproduct property requirements are discretionary.15.1.1 Test methods used to obtain data for preparation ofcertification
45、and test report shall be made available to thepurchaser on request.15.2 Chemical Composition:15.2.1 Composition shall be determined, in case of dis-agreement, as follows:Element MethodCopper E53Phosphorus E62Arsenic E6215.2.2 Test method(s) to be followed for the determinationof element(s) resulting
46、 from contractual or purchaser orderagreement shall be as agreed upon between the manufacturer orsupplier and the purchaser.15.3 Other Tests:15.3.1 The product furnished shall conform to physicalproperty and other requirements when subjected to the appro-priate test method in the following table:Tes
47、t MethodsElectrical resistivity B193Microscopical examination B577, Test Method AB379 113Hydrogen embrittlement B577, Test Method D15.3.1.1 Electrical ResistivityThe limit of measurementuncertainty for Test Method B193 shall be 60.30 % as aroutine method and 60.15 % as an umpire method.16. Significa
48、nce of Numerical Limits16.1 For purposes of determining compliance with thespecified limits for requirements of the properties listed in thefollowing table, an observed value or calculated value shall berounded as indicated in accordance with the rounding methodof Practice E29.PropertyRounded Unit f
49、or Observedor Calculated ValueChemical composition nearest unit in the last right-handElectrical resistivity significant digit used inexpressing the limiting value17. Inspection17.1 The manufacturer, or supplier, shall inspect and maketests necessary to verify that the furnished product conforms tospecification requirements.17.2 Source inspection of the product by the purchaser maybe agreed upon between the manufacturer, or supplier, and thepurchaser as part of the purchase order. In such case, the natureof the facilities needed to satisfy the inspe
