ASTM B740-2009(2015) Standard Specification for Copper-Nickel-Tin Spinodal Alloy Strip《铜-镍-锡旋节合金带材的标准规格》.pdf
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1、Designation: B740 09 (Reapproved 2015)Standard Specification forCopper-Nickel-Tin Spinodal Alloy Strip1This standard is issued under the fixed designation B740; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number 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 requiremen
3、ts for copper-nickel-tin alloy strip in the following alloys:Copper Alloy UNS No.Nominal Composition Weight %Copper Nickel TinC72700 85 9 6C72900 77 15 8C72650 87.5 7.5 51.2 UnitsThe values stated in inch-pound units and thevalues stated in SI units in Table 5 are to be regarded asstandard, except f
4、or grain size which is stated in metric unitsonly. The values given in parentheses are mathematical con-versions to SI units and are provided for information only andare not considered standard.1.3 The following safety hazard caveat pertains only to thetest method(s) described in this specification.
5、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 safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced
6、 Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate, Sheet, Strip, and RolledBarB598 Practice
7、 for Determining Offset Yield Strength inTension for Copper AlloysB601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB820 Test Method for Bend Test for Determining the Form-ability of Copper and Copper Alloy StripB846 Terminology for Copper and Copper AlloysE3 Gui
8、de for Preparation of Metallographic SpecimensE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc Alloys (Withdrawn 2010)3E290 Test Methods for Bend Testing of Material for Ductil-ityE478 Test Methods for Chemica
9、l Analysis of Copper Alloys3. General Requirements3.1 The following sections of Specification B248 constitutea part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Dimensions and Permissible Variations,3.1.4 Workmanship, Finish, and Appearance,3.1.5 Sampling,3.1.6 Signi
10、ficance of Numerical Limits,3.1.7 Inspection,3.1.8 Rejection and Rehearing,3.1.9 Certification,3.1.10 Test Reports, and3.1.11 Packaging and Package Marking.3.2 In addition, when a section with a title identical to thatreferenced in 3.1 above appears in this specification, it containsadditional requi
11、rements that supplement those appearing inSpecification B248.4. Terminology4.1 For definitions of terms related to copper and copperalloys, refer to Terminology B846.5. Ordering Information5.1 Include the following information when placing ordersfor product under this specification, as applicable:1T
12、his specification is under the ASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.01 on Plate, Sheet, andStrip.Current edition approved May 1, 2015. Published June 2015. Originallyapproved in 1984. Last previous edition approved in 2009 as B740 09. DOI
13、:10.1520/B0740-09R15.2For 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 approved version of this histo
14、rical standard is referenced onwww.astm.org.*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 States15.1.1 ASTM designation and year of issue,5.1.2 Quantity,5.1.3 Copper Alloy UN
15、S No. (see 1.1),5.1.4 Form of material: strip,5.1.5 Temper (see 8.1),5.1.6 Dimensions: thickness and width, and length ifapplicable,5.1.7 How furnished: rolls or coils, stock lengths with orwithout ends, specific lengths with or without ends,5.1.8 Type of edge other than slit, for example, roundedco
16、rners, rounded edges, or full-rounded edges.5.1.9 When material is purchased for agencies of the U.S.Government, this shall be specified in the contract or purchaseorder, and the material shall conform to the SupplementaryRequirements Section as defined in the current edition ofSpecification B248.5.
17、2 The following options are available and should bespecified at the time of placing of the order when required:5.2.1 Certification, if required.5.2.2 Mill test report, if required.6. Chemical Composition6.1 The material shall conform to the chemical compositionrequirements specified in Table 1 for t
18、he copper alloy UNS No.designation specified in the ordering information.6.2 These composition limits do not preclude the presenceof other elements. By agreement between manufacturer orsupplier and purchaser, limits may be established and analysisrequired for unnamed elements.6.3 Copper may be given
19、 as remainder and taken as thedifference between the sum of all the elements analyzed and100%. When all the elements in the table including copper areanalyzed, their sum shall be 99.7 % min.7. Materials and Manufacture7.1 ManufactureSpinodal Heat Treatment.7.1.1 Solution-heat-treatment or solution-h
20、eat-treated andcold-worked material is normally spinodal hardened by thepurchaser after forming or machining.7.1.2 Mill-hardened products have been spinodal heattreated by the manufacturer. Further thermal treatment is notnormally required.8. Temper8.1 The standard tempers for products described in
21、thisspecification are given in Tables 2-4.8.1.1 TB00 (Solution Heat Treated).8.1.2 TD01 to TD 12 (Solution Heat Treated with varyingdegrees of cold working).8.1.3 TX00 (Spinodal Hardened).8.1.4 TS01 to TS12 (Hard and Spinodal Hardened).8.1.5 TM00 to TS08 (mill hardened).8.2 Other tempers are availab
22、le and shall be subject toagreement between supplier or manufacturer and purchaser.9. Grain Size for Annealed Tempers9.1 Product over 0.010 in. (0.25 mm) in thickness shall havean average grain-size not exceeding the limits prescribed inTable 5. The determinations are made on the separate samplesand
23、 in a plane perpendicular to the surface.10. Mechanical Property Requirements10.1 Tensile Strength Requirements:10.1.1 The solution heat-treated or solution heat-treated andcold-worked material shall conform to the tensile propertyrequirements specified in Table 2, when tested in accordancewith Test
24、 Methods E8/E8M.10.1.2 The spinodal heat-treated material shall conform tothe tensile property requirements specified in Table 3.10.1.2.1 Special combinations of properties such as in-creased ductility, electrical conductivity, dimensional accuracy,endurance life, improved stress relaxation resistan
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