1、Designation: B49 10B49 15Standard Specification forCopper Rod Drawing Stock for Electrical Purposes1This standard is issued under the fixed designation B49; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision.
2、Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon () 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 covers the requirements for ro
3、d drawing stock in diameters from 14 to 138 in. (6.4 to 35 mm) producedfrom high conductivity coppers listed in Table 1, namely, electrolytic tough-pitch or oxygen-free coppers and are suitable forfurther fabrication into electrical conductors.1.2 The values stated in inch-pound units are to be rega
4、rded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.3 The following safety hazards caveat pertains only to Section13. This standard does not purport to address all of the safetyconcerns, if
5、 any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents in the current issue of the Book of Stand
6、ards form a part of this specification to the extentreferenced herein and define materials suitable for use in rod manufacture:2.2 ASTM Standards:2B5 Specification for High Conductivity Tough-Pitch Copper Refinery ShapesB115 Specification for Electrolytic Copper CathodeB170 Specification for Oxygen-
7、Free Electrolytic CopperRefinery ShapesB193 Test Method for Resistivity of Electrical Conductor MaterialsB224 Classification of CoppersB577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in CopperB846 Terminology for Copper and Copper AlloysE8E8/E8M Test Methods
8、for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE53 Test Method for Determination of Copper in Unalloyed Copper by GravimetryE478 Test Methods for C
9、hemical Analysis of Copper AlloysE1606 Practice for Electromagnetic (Eddy-Current) Examination of Copper Redraw Rod for Electrical PurposesE2575 Test Method for Determination of Oxygen in Copper and Copper Alloys2.3 Other Document:3NBS Handbook 100 Copper Wire Tables3. Terminology3.1 For definitions
10、 of general terms relating to copper and copper alloys refer to Terminology B846.1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.07 on RefinedCopper.Current edition approved Oct. 1, 2010May 1, 2015.
11、 Published November 2010May 2015. Originally approved in 1923. Last previous edition approved in 20092010 asB49 09.B49 10. DOI: 10.1520/B0049-10.10.1520/B0049-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book o
12、f ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from National Technical Information Service (NTIS), 5285 Port Royal Rd., Springfield, VA 22161,5301 Shawnee Rd., Alexandria, VA 22312,http:/www.ntis.gov.This document is not an ASTM stand
13、ard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases
14、 only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Ordering Infor
15、mation4.1 Orders for rod under this specification shall include the following information:4.1.1 ASTM designation and year of issue,4.1.2 Quantity of each size,4.1.3 UNS designation and requirements of copper (Sections 5 10),4.1.4 Finish (Sections 9 and 10),4.1.5 Package with or without joints (see 5
16、.3),4.1.6 Rod diameter (see 9.2),4.1.7 Inspection (Section 15),4.1.8 Package size (see 19.1), and4.1.9 Special package marking as agreed upon between the manufacturer and the purchaser (Section 19).4.2 The following requirements are optional and should be specified in the contract or purchase order
17、when required.4.2.1 Certification (Section 17) and4.2.2 Test Report (Section 18).5. Material and Manufacture5.1 The rod shall be fabricated from copper of such quality and purity that the finished product shall have the properties andcharacteristics prescribed in this specification.NOTE 1The followi
18、ng specifications define materials suitable for use: Specification B5, or Specification B115, or Specification B170.5.2 Copper of special qualities, forms, or types, as agreed upon between the manufacturer and the purchaser and that willconform to the requirements prescribed in this specification ma
19、y also be used.5.3 The rod coils shall be furnished in continuous lengths with or without joints, as ordered.6. Chemical Composition6.1 Each rod type shall conform to the chemical composition requirements prescribed in Table 1 for the type of copper ordered(Section 5).TABLE 1 Chemical CompositionAUN
20、S NumberCopper TypeC11040ETPC10100OFEBC10200OFCC11000ETPCopper, min 99.90 %D 99.99 %D 99.95 %Eincl silver99.90 %Eincl silverppm ppm ppm ppmTellurium, max 2 2 . . . . . .Selenium, max 2 3 . . . . . .Bismuth, max 1.0 1.0 . . . . . .Group total, max 3 . . . . . . . . .Antimony, max 4 4 . . . . . .Arsen
21、ic, max 5 5 . . . . . .Tin, max 5 2 . . . . . .Lead, max 5 5 . . . . . .Iron, max 10 10 . . . . . .Nickel, max 10 10 . . . . . .Sulfur, max 15 15 . . . . . .Silver, max 25 25 . . . . . .Oxygen 100650 5 max 10 max . . .Maximumallowabletotal65F . . . . . . . . .Cadmium, max . . . 1 . . . . . .Phosphor
22、us, max . . . 3 . . . . . .Zinc, max . . . 1 . . . . . .Manganese, max . . . 0.5 . . . . . .A See 13.1.2.B From B170 Grade 1 copper or equivalent.C From B170 Grade 2 copper or equivalent.D By difference. See 13.1.2 and 13.1.3.E See 13.1.1.F Not including oxygen.B49 1526.2 By agreement between the ma
23、nufacturer and the purchaser, the addition of silver up to an average of 30 troy oz per shortton of copper (0.10 %) will be considered within the specification, copper including silver in the chemical analysis, with noindividual silver analysis to exceed 35 troy oz per short ton (0.12 %). In the cas
24、e of oxygen-free silver-bearing coppers, thedesignation OFS (oxygen-free, silver-bearing) will be used as shown in Classification B224 and will include the UNS Nos.C10400, C10500, and C10700 as defined by the agreed silver content.6.3 Silver-bearing tough-pitch copper corresponds to the designation
25、STP(silver-bearing tough-pitch) as shown in ClassificationB224 and to coppers having UNS Nos. C11300, C11400, C11500, and C11600.6.4 Oxygen ContentOxygen-free copper as described herein is defined as a copper containing not in excess of 0.0010 % (10ppm) oxygen and produced without the use of metalli
26、c or other deoxidizers.7. Physical Property Requirements7.1 Electrical ResistivityResistivity of the copper in the annealed condition (See Note X1.1) shall not exceed the followingvalues at 20C:Type of Copper Resistivity, max, at 20CAnnealed, g/m2UNS C10100 only 0.15176 (101.00 % IACS min)All others
27、 0.15328 (100.00 % IACS min)Type of Copper Resistivity, max, at 20CAnnealed, g/m2UNS C10100 only 0.15176 (101.00 % IACS min)All others 0.15328 (100.00 % IACS min)8. Mechanical Property Requirements8.1 Tensile TestsRod finished by hot working or annealing shall have a minimum elongation of 30 % in 10
28、 in. (250 mm).(Note X1.2 and Test Methods E8E8/E8M.)8.2 Torsion (Twist) TestsTorsion tests are not a requirement of this specification. However, a discussion will be found in NoteX1.3.8.3 Embrittlement (Bend) Test:8.3.1 A test to reflect propensity towards hydrogen embrittlement shall be performed o
29、nly on oxygen-free copper.8.3.2 The specimen shall be tested in accordance with 13.6 and Specification B170.8.3.3 The specimen, prepared and tested from the OFE (oxygen-free electronic) copper (UNS C10100) listed in Table 1, shallwithstand without breaking into two pieces, a minimum of ten (10) reve
30、rse bends.8.3.4 The specimen, prepared and tested from the OF (oxygen-free) copper (UNS C10200) listed in Table 1, shall withstand,without breaking into two pieces, a minimum of eight (8) reverse bends.8.4 AnnealabilityAnnealability is not a requirement of this specification. However, a discussion w
31、ill be found in NotesX1.4-X1.6.9. Other Requirements9.1 Surface OxideThe surface oxide film thickness shall be determined in accordance with 13.5.9.1.1 Total thickness of the copper oxide film on cleaned copper rod or annealed shaved rod or cold-finished rod shall not exceed750 (7.5 108 m).9.1.2 The
32、 residual oxide film thickness on as-shaved rod does not need to be specified.9.1.3 A surface oxide requirement is not necessary for rod ordered uncleaned.9.2 DiameterThe diameter of the rod at any point shall not vary from that specified by more than the amounts prescribed inTable 2. .9.3 Electroma
33、gnetic (Eddy-current) ExaminationElectromagneticElectro-magnetic examination of copper redraw rod is nota requirement of this specification. If it is performed for detecting surface discontinuities, however, a discussion will be found inNote X1.7.10. Workmanship, Finish, and Appearance10.1 The rod s
34、hall be free of defects, but blemishes of a nature that do not interfere with the intended application are acceptable.B49 15311. Sampling11.1 Routine SamplingFor the routine analysis of copper rod coils, the methods of sampling shall be at the discretion of thetester.11.2 This procedure shall be use
35、d in case of rod dispute between the manufacturer and the purchaser.11.2.1 A lot shall be considered as a single coil of finished rod. A minimum of two samples of sufficient length shall be takenfrom the suspected non-conforming rod coil for re-testing. Samples may be taken from either end of the ro
36、d coil at the discretionof the tester. Specific numbers and locations shall be determined between the producer and user. If the test pieces from both testsamples pass the appropriate test(s), then the coil shall be deemed to conform to the particular requirement(s) of the standard. Ifa test piece fa
37、ils a test, the rod coil represented in the shipping lot shall be deemed not to conform to this standard.11.2.2 A shipping lot shall be the quantity of rod in coil form that is present in a single container, such as a truck or railroadcar.11.3 When a cast refinery shape has been chemically analyzed
38、and converted into rod without remelting, further chemicalanalysis shall not be required.12. Number of Tests and Retests12.1 Tests:12.1.1 Chemical AnalysisChemical composition shall be determined in accordance with the element mean of the results fromat least two replicate analyses of the sample(s).
39、12.1.2 Other Tests:12.1.2.1 Electrical Resistivity, Tensile Elongation, Diameter, and Surface OxideResults shall be reported as the averageobtained from at least two test specimens, each taken from a separate test piece where possible.12.1.2.2 Hydrogen Embrittlement Test and Microscopical Examinatio
40、nAll specimens tested must meet the requirements ofthe specification.12.2 Retests:12.2.1 When requested by the manufacturer or supplier, a retest shall be permitted when results of tests obtained by thepurchaser fail to conform to the requirements of the product specification.12.2.2 The retest shall
41、 be as directed in the product specification for the initial test except the number of test specimens shallbe twice that normally required for the specified test.12.2.3 All test specimens shall conform to the product specification requirement(s) in retest. Failure to conform shall be causefor reject
42、ion.13. Test Methods13.1 Chemical Analysis:13.1.1 In case of dispute, copper content of the coppers other than UNS C10100 and UNS C11040 in Table 1 shall bedetermined in accordance with Test Method E53.13.1.2 Analytical method for determining impurity levels of coppers listed in Table 1 shall be in
43、accordance with SpecificationB115.TABLE 2 Permissible Variations in DiameterNominal Diameter, in. (mm)Permissible Variation,in.(mm)14 (6.4) +0.020 (+0.51)0.010 (0.25)Over 14 (6.4) to 34 in. (19 mm) incl. 0.015 (0.38)Over 34 (19) to 1.0 in. (25 mm) incl. 0.020 (0.51)Over 1.0 (25) to 138 in. (35 mm) i
44、ncl. 0.030 (0.76)TABLE 3 Equivalent Resistivity ValuesAConductivity at 68F (20C), % IACS 100.00 101.00 lb/mile2 875.20 866.53 g/m2 0.153 28 0.151 76 c mil/ft 10.371 10.268 mm2/m 0.017 241 0 0.017 070 in. 0.678 79 0.672 07 cm 1.7241 1.7070A The equivalent resistivity values for 100 % IACS (soft coppe
45、r) were eachcomputed from the fundamental IEC value (1/58 mm2/m) using conversionfactors each accurate to at least seven significant figures.B49 15413.1.3 Copper content of UNS C10100 and UNS C11040 types shall be calculated by subtracting from 100 % the total impurityconcentration determined. The i
46、mpurity total for UNS C10100 is defined as the sum of sulfur, silver, lead, tin, bismuth, arsenic,antimony, iron, nickel, zinc, phosphorus, selenium, tellurium, manganese, cadmium, and oxygen present in the sample. Theimpurity total for UNS C11040 is defined as the sum of sulfur, silver, lead, tin,
47、bismuth, arsenic, antimony, iron, nickel, selenium,tellurium, and oxygen present in the sample.13.1.4 The test methods annex of Specification B170 should be referenced for the oxygen-free coppers. Test MethodMethodsE478 should be referenced for the determination of silver-bearing alloys permitted un
48、der this specification.13.1.5 Oxygen content shall be determined on cleaned copper samples using a suitable laboratory apparatus or a commercialinstrument designed specifically for this purpose. Test Method E2575 shall be referenced to determine oxygen content in copperand copper alloys only for the
49、 range 5 to 400 ppm since standards have not been developed above this range.13.2 Tensile ElongationElongation shall be determined as the permanent increase in length, caused by breaking of the rod intension, measured between gage marks placed originally 10 in. (250 mm) apart upon the test specimen (Note X1.2). The fractureshall be between gage marks and not closer than 1 in. (25 mm) to either gage mark.13.3 Electrical Resistivity:13.3.1 At the option of the manufacturer, electrical resistivity shall
