1、Designation: B 272 07Standard Specification forCopper Flat Products with Finished (Rolled or Drawn)Edges (Flat Wire and Strip)1This standard is issued under the fixed designation B 272; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisio
2、n, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification e
3、stablishes the requirements for cop-per products, flat wire and strip, with rolled or drawn finishededges produced for general application.1.1.1 The product is produced in UNS Copper Nos.C10100, C10200, C10300, C10500, C10700, C10800, C11000,C11040, C12200, and C14200 unless otherwise established by
4、agreement between manufacturer and purchaser.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.NOTE 1When a copper other than that l
5、isted in 1.1.1 is designated bythe purchaser, the resulting product shall conform to the physical,mechanical, performance, dimensional, and tolerance requirements peragreement between the manufacturer and purchaser.2. Referenced Documents2.1 ASTM Standards:2B5 Specification for High Conductivity Tou
6、gh-Pitch Cop-per Refinery ShapesB 170 Specification for Oxygen-Free Electrolytic CopperRefinery ShapesB 193 Test Method for Resistivity of Electrical ConductorMaterialsB 248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate, Sheet, Strip, and RolledBarB 250/B 250M Speci
7、fication for General Requirements forWrought Copper Alloy WireB 379 Specification for Phosphorized CoppersRefineryShapesB 577 Test Methods for Detection of Cuprous Oxide (Hy-drogen Embrittlement Susceptibility) in CopperB 846 Terminology for Copper and Copper AlloysE8 Test Methods for Tension Testin
8、g of Metallic MaterialsE18 Test Methods for Rockwell Hardness of MetallicMaterialsE53 Test Method for Determination of Copper in Unal-loyed Copper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E 290 Test Methods for Bend Testing of Material forDu
9、ctilityE 478 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The following sections of Specification B 248 constitutea part of this specification for strip products and of Specifica-tion B 250 for flat wire products:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3
10、 Workmanship, Finish, and Appearance,3.1.4 Sampling,3.1.5 Number of Tests and Retests,3.1.6 Specimen Preparation,3.1.7 Test Methods,3.1.8 Significance of Numerical Limits,3.1.9 Inspection,3.1.10 Rejection and Rehearing,3.1.11 Certification,3.1.12 Test Reports,3.1.13 Packaging and Package Marking, an
11、d3.1.14 Supplementary Requirements.3.2 In addition, when a section with a title identical to thatreferenced in 3.1 appears in this specification, it containsadditional requirements that supplement those appearing inSpecifications B 248 or B 250/B 250M, or both.4. Terminology4.1 For definitions of te
12、rms related to copper and copperalloys, refer to Terminology B 846.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,Bar, Wire, Shapes and Forgings.Current edition approved May 15, 2007. Publis
13、hed May 2007. Originallyapproved in 1952. Last previous edition approved in 2002 as B 272 02.2For 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
14、Summary page onthe ASTM website.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. Ordering Information5.1 When placing orders for product to this specification,includ
15、e the following information:5.1.1 ASTM designation and year of issue,5.1.2 Copper UNS No. designation (Section 1),5.1.3 TemperO61 (annealed), H00 (eight hard), H01(quarter hard), H02 (half hard), H03 (three-quarter hard), H04(hard), H06 (extra hard), H08 (spring) (Section 8),5.1.4 DimensionsWidth an
16、d thickness (Section 13),5.1.5 QuantityTotal weight, footage, or number of pieces,5.1.6 How FurnishedLengths, coils, spools, and so forth,(see sections 13.4.1 and 13.4.3 for clarification) and5.1.7 When purchased for agencies of the U.S. government(Section 12).5.1.8 Edge contours required, see 13.6.
17、5.2 The following options are available under this specifi-cation and should be included in the contract or purchase orderwhen required:5.2.1 Electrical resistivity (Section 9),5.2.2 Hydrogen embrittlement susceptibility test (Section11),5.2.3 Bend test (Section 11),5.2.4 Certification (Specificatio
18、n B 248 or SpecificationB 250/B 250M, or both),5.2.5 Mill test reports (Specification B 248 or SpecificationB 250/B 250M, or both).6. Material and Manufacture6.1 Material:6.1.1 The material of manufacture shall be a copper billet,cake, wire bar, or rod produced to Specifications B 5, B 170, orB 379.
19、6.1.2 Copper other than that listed in 1.1.1 is permitted onlyupon agreement between the manufacturer and the purchaser(see Note 1).6.2 Manufacture:6.2.1 The product shall be manufactured by such hot-working, cold-working, and annealing processes as to producea uniform wrought structure in the finis
20、hed product.6.3 EdgesThe edges shall be finished by rolling or draw-ing per 13.6.7. Chemical Composition7.1 The material shall conform to the chemical composi-tional requirements in Table 1 for the copper UNS No.designation specified in the ordering information.7.1.1 These compositional limits do no
21、t preclude the pres-ence of other elements. When required, limits shall be estab-lished and analysis required for unnamed elements by agree-ment between the manufacturer and the purchaser.8. Temper8.1 The standard tempers for products described in thisspecification are given in Table 2.8.1.1 Anneale
22、d temper O61.8.1.2 Cold-worked tempers H00, H01, H02, H03, H04,H06, and H08.9. Physical Property Requirement9.1 Electrical Resistivity Requirement:9.1.1 When specified in contract or purchase order (seesection 5) Copper UNS No. C10100, C10200, C10300,C11000, C11040, C10500, and C10700 shall conform
23、to theelectrical mass resisitivity requirements in Table 2, when testedin accordance with Test Method B 193. When ElectricalResistivity testing is specified for other copper alloys theacceptance requirements shall be established by agreementbetween the manufacturer and the purchaser.NOTE 2The Intern
24、ational Annealed Copper Standard electrical con-ductivity equivalents are as follows:Electrical Resistivity,Vg/m2Conductivity,%0.151 76 101.000.153 28 100.000.156 14 98.160.157 75 97.160.159 40 96.1610. Mechanical Property Requirements10.1 Tensile Requirements:10.1.1 Product 0.035 in. (0.90 mm) and
25、under in thicknessshall conform to the tensile strength and elongation require-ments prescribed in Table 2, when tested in accordance withTest Methods E8.TABLE 1 Chemical RequirementsComposition, %Copper UNS No.Element C10100AC10200BC10300 C10500 C10700 C10800 C11000 C11040CC12200 C14200Copper (incl
26、 silver), min 99.99D99.95 99.95E99.95 99.95 99.95E99.90 99.90 99.9 99.4Phosphorus . . . . . . 0.0010.005 . . . . . . 0.0050.012 . . . . . . 0.0150.040 0.0150.040Arsenic . . . . . . . . . . . . . . . . . . . . .C. . . 0.150.50Silver,min . . . 0.034 0.085 . .C. .Oxygen, max 0.0005 0.0010 . . . 0.0010
27、0.0010 . . . . . .C. .ARefer to Table 1, Chemical Requirements, Grade 1 of Specification B 170 for impurity limits for Copper UNS No. C10100.BRefer to Table 1, Chemical Requirements, Grade 2 of Specification B 170 for impurity limits for Copper UNS No. C10200.CThe following additional maximum limits
28、 shall apply: Se, 2 ppm (0.0002 %); Bi, 1.0 ppm (0.00010 %); Te, 2 ppm (0.0002 %); Group Total, Te + Se + Bi,3 ppm (0.0003 %). Sn, 5 ppm (0.0005 %); Pb, 5 ppm (0.0005 %); Fe, 10 ppm (0.0010 %); Ni, 10 ppm (0.0010 %); S, 15 ppm (0.0015 %); Ag, 25 ppm (0.0025 %);Sb, 4 ppm (0.0004 %); As, 5 ppm (0.0005
29、 %); Oxygen 100-650 ppm (0.010-0.065 %). The total maximum allowable of 65 ppm (0.065 %) does not include oxygen.DThe copper value is determined by the difference between the impurity total and 100 %. The copper value is exclusive of Ag.EIncludes P.B27207210.1.1.1 Tensile strength test results shall
30、 be the basis foracceptance or rejection for mechanical properties for product0.035 in. (0.90 mm) and under in thickness.10.1.2 Product over 0.035 in. (0.90 mm) in thickness shallconform to the requirements prescribed in Table 2 when testedin accordance with Test Methods E8.10.2 Rockwell Hardness:10
31、.2.1 Product over 0.035 in. (0.90 mm) in thickness shallconform to the hardness requirements prescribed in Table 2when tested in accordance with Test Methods E18.10.2.1.1 Rockwell hardness test results shall be the basis foracceptance or rejection for mechanical properties for productover 0.035 in.
32、(0.90 mm) in thickness.11. Performance Requirements11.1 Hydrogen Embrittlement Susceptibility:11.1.1 Samples of finished flat wire and strip of CopperUNS Nos. C10100, C10200, C10300, C10500, C10700,C10800, C12200, and C14200 shall be capable of passing theembrittlement test of Procedure B of Test Me
33、thods B 577. Theactual performance of this test is not mandatory under theterms of this specification unless definitely specified in theordering information (see 5).11.1.2 In case of dispute, Test Method C of Test MethodsB 577 shall be used.11.2 Bend Test Requirement:11.2.1 When specified in contrac
34、t or purchase order andtested in accordance with Test Method E 290, the specimenshall withstand being bent cold (room temperature) on a radiusequal to the minimum cross sectional dimension to the angleprescribed in Table 2. The bend shall be radial to this minimumdimension and after bending, no frac
35、ture shall be visible to theunaided eye on the outside bent surface.12. Purchases for U.S. Government12.1 When specified in the contract or purchase order,product purchased for an agency of the U.S. government shallconform to the special government requirements specified inthe Supplementary Requirem
36、ents section of SpecificationB 248 or B 250/B 250M, as appropriate.13. Dimensions and Permissible Variations13.1 GeneralFor the purpose of determining conform-ance with the dimensional requirements prescribed in thisspecification, any measured value outside the specified limitingvalues for any dimen
37、sion may be cause for rejection.NOTE 3Blank spaces in the tolerance tables indicate either that thematerial is not generally available or that no tolerances have beenestablished.13.2 ThicknessThe standard method of specifying thick-ness shall be in decimal fractions of an inch. The tolerancesshall b
38、e as shown in Table 3.13.3 WidthThe standard method of specifying width shallbe in decimal fractions of an inch. The tolerances shall be asshown in Table 4.13.4 LengthsHard temper flat wire and strip, unless oth-erwise specified, (see 5.1.6) shall be furnished in straightlengths.13.4.1 Straight leng
39、ths shall be furnished in stock lengthswith ends included, in accordance with the schedule shown inTable 5, unless the order specifies stock lengths only, specificlengths, or specific lengths with ends.13.4.2 The length tolerance for full length pieces shall be asshown in Table 6.13.4.3 Soft temper
40、flat wire and strip, unless otherwisespecified (see 5.1.6), shall be furnished, at the manufacturersoption, in rolls, bucks, or reels.TABLE 2 Mechanical (All Alloys) and Electrical Requirements (Conductor Alloys Only)Temper Thickness, in. (mm)Rockwell Tensile Elongation Bend Electrical Resistivity,
41、max,F Scale ksi (MPa) Min in 2in %Angle,degreeVg/m2at 20C (68F)Standard Name Min Max C10100 C10300 C10200, C11000,C11040, C10500,C10700O61 annealed up to 0.010 (0.254), inclover 0.010 (0.0254) to 0.035 (0.900), inclover 0.035 (0.900) to 0.050 (1.25), inclover 0.050 (1.25) to 0.188 (4.80), incl.65 ma
42、x65 max.40 (275)38 (260)37 (255)202525251801801801800.151 760.151 760.151 760.151 760.156 140.156 140.156 140.156 140.153 280.153 280.153 280.153 28H0018-hard up to 0.035 (0.900), inclover 0.035 (0.900) to 0.188 (4.80), incl.548232 (220)32 (220)40 (275)40 (275)18201201200.156 140.156 140.159 400.159
43、 400.157 750.157 75H0114-hard up to 0.035 (0.900), inclover 0.035 (0.900) to 0.188 (4.80), incl.608634 (235)34 (235)42 (290)42 (290)15151201200.156 140.156 140.159 400.159 400.157 750.157 75H0212-hard up to 0.035 (0.900), inclover 0.035 (3.20) to 0.188 (4.80), incl.779137 (255)37 (255)46 (315)46 (31
44、5)10101201200.156 140.156 140.159 400.159 400.157 750.157 75H0334-hard up to 0.035 (0.900), inclover 0.035 (3.20) to 0.188 (4.80), incl.829441 (280)41 (280)50 (345)50 (345)661201200.156 140.156 140.159 400.159 400.157 750.157 75H04 hard up to 0.035 (0.900), inclover 0.035 (0.900) to 0.125 (3.20), in
45、clover 0.125 (3.20) to 0.188 (4.80), incl.8597809543 (295)43 (295)43 (295)58 (400).4441201201200.156 140.156 140.156 140.159 400.159 400.159 400.157 750.157 750.157 75H06 extra hard up to 0.035 (0.900), inclover 0.035 (3.20) to 0.188 (4.80), incl.889747 (325)47 (325)56 (385)56 (385).0.156 140.156 14
46、0.159 400.159 400.157 750.157 75H08 spring up to 0.035 (0.900), inclover 0.035 (3.20) to 0.188 (4.80), incl.919850 (345)50 (345)58 (400)58 (400).0.156 140.156 140.159 400.159 400.157 750.157 75B27207313.5 StraightnessThe deviation from straightness shallnot exceed the limits shown in Table 7.13.5.1
47、To determine compliance with this tolerance thelength shall, in case of disagreement, be checked by thefollowing method:13.5.1.1 Place the lengths on a level table so that the arc ofdeparture from straightness is horizontal. Measure the depth ofarc to the nearest132 in. (0.79 mm) using a metal scale
48、 and astraightedge.13.6 Edge Contours:13.6.1 Square CornersUnless otherwise specified, thematerial shall be finished with commercially square cornerswith the maximum permissible radius as shown in Table 8.13.6.2 Rounded CornersWhen specified, the materialmay be furnished with corners rounded as show
49、n in Fig. 1 to aquarter circle of a radius as shown in Table 9. The tolerance onthe radius shall be 625 %.13.6.3 Rounded EdgeWhen specified, the material maybe finished with edges rounded as shown in Fig. 2, with aradius of curvature as shown in Table 10.13.6.4 Full Rounded EdgeWhen specified, the materialshall be finished with substantially uniform round edges, theradius of curvature being approximately12 the thickness of theproduct as shown in Fig. 3, but in no case to exceed12 thethickness of the product by more than 25 %.14
