ASTM B455-2005 Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes《铜锌铅合金(加铅黄铜)挤压型材的标准规范》.pdf

1、Designation: B 455 05Standard Specification forCopper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes1This standard is issued under the fixed designation B 455; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi

2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification establishes the requirements for ex-truded leaded-brass angles, channels, and other architecturalshapes of s

3、olid cross section produced in Copper Alloy UNSNos. C38000 and C38500.1.1.1 Pipe, tube, or other hollow section products are notincluded in this specification.1.2 UnitsThe values stated in inch-pound units are thestandard. The values given in parentheses are mathematicalconversions to SI units, whic

4、h are provided for informationonly and are not considered standard.2. Referenced Documents2.1 ASTM Standards:2B 249/249M Specification for General Requirements forWrought Copper and Copper Alloy Rod, Bar, Shapes, andForgingsB 601 Classification for Temper Designations for Copperand Copper AlloysWrou

5、ght and CastB 846 Terminology for Copper and Copper AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE54 Test Methods for Chemical Analysis of SpecialBrasses and Bronzes3E 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 478 Test Methods

6、for Chemical Analysis for CopperAlloys3. General Requirements3.1 The following sections of Specification B 249/249Mconstitute a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Workmanship, Finish, and Appearance,3.1.4 Sampling,3.1.5 Number of Tests and Retests,3.1.

7、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 Mill Test Report, and3.1.13 Packaging and Package Marking.3.2 In addition, when a section with a title identical to thatreferenced in 3.1 appea

8、rs in this specification, it containsadditional information which supplements that appearing inSpecification B 249/249M. In case of conflict this specificationshall prevail.4. Terminology4.1 For definitions of terms related to copper and copperalloys, refer to Terminology B 846.5. Ordering Informati

9、on5.1 When placing orders for products under this specifica-tion include the following information:5.1.1 ASTM designation and year of issue (for example,B 455 01),5.1.2 Copper alloy UNS No. designation (for example,C38000),5.1.3 Temper (Section 7),5.1.4 Form, dimensions, and tolerances (Section 9),

10、and5.1.5 Quantity; total weight or number of pieces for eachform, temper, size, and copper alloy.5.2 The following options are available in this specificationand shall be included in the contract or purchase order whenrequired:5.2.1 Intended end use or application,5.2.2 Heat identification or tracea

11、bility details (Specifica-tion B 249/249M),5.2.3 Certification (Specification B 249/249M), and5.2.4 Mill test report (Specification B 249/249M).1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod

12、,Bar, Wire, Shapes, and Forgings.Current edition approved Mar. 1, 2005. Published March 2005. Originallyapproved in 1967. Last previous edition approved in 2001 as B 455 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For A

13、nnual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.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 Sta

14、tes.6. Chemical Composition6.1 The material shall conform to the chemical composi-tional requirements in Table 1 for the copper alloy UNS No.designation in the ordering information.6.1.1 These composition limits do not preclude the presenceof other elements. When required, limits shall be establishe

15、dand analysis required for unnamed elements by agreementbetween the manufacturer and the purchaser.6.2 For copper alloys in which zinc is specified as theremainder, either copper or zinc is permitted to be taken as thedifference between the sum of results for all elements analyzedand 100 %. When cop

16、per is so determined, that differencevalue shall conform to the requirements given in Table 1.6.3 When all elements specified in Table 1 are determinedfor the copper alloy UNS No. designated in the orderinginformation, the sum of the results shall be 99.5 % minimum.7. Temper7.1 The temper of the pro

17、duct furnished to this specifica-tion, as defined in Classification B 601, shall be M30 (as hotextruded).8. Mechanical Property Requirements8.1 Tensile Strength Requirements:8.1.1 The product furnished shall conform to the require-ments of Table 2 when tested in accordance with Test MethodsE8.8.1.2

18、The tension test results shall be the basis for purchaseracceptance or rejection based upon mechanical properties.8.1.2.1 When product is intended for strictly decorativepurposes and so stated in the purchase order or contract, it ispermitted under this specification for the mechanical propertyrequi

19、rements to be waived by the purchaser.8.2 Rockwell Hardness:8.2.1 A Rockwell hardness test offers a quick and conve-nient method of checking general conformity to temper andtensile requirements.NOTE 1For assistance in testing, the minimum Rockwell B hardnessof M30 (as hot-extruded) temper shapes to

20、this specification is approxi-mately 42.9. Dimensions, Mass, and Permissible Variations9.1 The dimensions, contours, and tolerances shall be pro-vided by the purchaser, by means of a drawing or othermedium, and shall be a part of the contract or purchase order.9.2 Straightness tolerances shall be su

21、bject to agreementbetween the manufacturer and the purchaser and such agree-ment shall be part of the purchase order.10. Sampling10.1 Lot size, portion size, and selection of sample piecesshall be as follows:10.1.1 Lot SizeAn inspection lot shall be 5000 lb (2275kg) or fraction thereof, of the same

22、mill form, alloy, andnominal dimensions, subject to inspection at one time.10.1.2 Portion SizeThe portion shall be two individualpieces of the lot selected as to be representative of the lot.10.2 Chemical Analysis:10.2.1 The sample for chemical analysis shall be taken inaccordance with Practice E 25

23、5 for the product in its final formfrom the pieces selected in 10.1.2 and combined into onecomposite sample. The minimum weight of the compositesample shall be 150 g.10.2.2 Instead of sampling in accordance with PracticeE 255, the manufacturer shall have the option of determiningconformance to chemi

24、cal composition by analyzing samplestaken at the time the castings are poured.10.2.2.1 When samples are taken at the time of casting, atleast one sample shall be taken from each group of castingspoured from the same source of molten metal.10.3 Samples for All Other TestsSamples taken for allother te

25、sts shall be taken from the sample portions selected in10.1.2 and be of a convenient size to accommodate the test andcomply with the requirements of the appropriate test method.11. Test Methods11.1 Product composition shall be determined, in case ofdispute, as follows:Element ASTM Test MethodAluminu

26、m E 5480 (Reapproved1996)Copper E 478Iron E 478Lead E 478 (AA)Tin E 478 (photometric)Zinc E 478 (titrimetric)11.1.1 Test method(s) to be followed for the determinationof element(s) resulting from contractual or purchase orderagreement shall be as agreed upon between the supplier and thepurchaser.12.

27、 Keywords12.1 architectural extruded shapes; extruded shapes; leadedbrass extruded shapes; UNS No.C38000; UNS No. C38500TABLE 1 Chemical RequirementsElementComposition, %Copper AlloyUNS No.C38000Copper AlloyUNS No.C38500Copper 55.060.0 55.059.0Lead 1.52.5 2.53.5Zinc remainder remainderIron, max 0.35

28、 0.35Tin, max 0.30 .Aluminum, max 0.50 .TABLE 2 Mechanical RequirementsCopper AlloyUNS Nos.C38000 andC38500Tensile strength, min, ksiA(MPa)B48 (330)Yield strength at 0.5 % extension under load, min,ksi (MPa)B16 (110)ElongationBin 2 in. (50.8 mm), min, % 15Aksi = 1000 psi.BSee Appendix X1.B455052APPE

29、NDIX(Nonmandatory Information)X1. METRIC EQUIVALENTSX1.1 The SI unit for strength properties now shown is inaccordance with the International System of Units (SI). Thederived SI unit for force is the newton (N), which is defined asthat force which when applied to a body having a mass of onekilogram

30、gives it an acceleration of one metre per secondsquare (N = kgm/s2). The derived SI unit for pressure or stressis the newton per square metre (N/m2), which has been namedthe pascal (Pa) by the General Conference on Weights andMeasures. Since 1 ksi = 6 894 757 Pa, the metric equivalentsare expressed

31、as megapascal (MPa), which is the same asMN/m2and N/mm2.SUMMARY OF CHANGESCommittee B05 has identified the location of selected changes to this standard since the last issue, B 455-01,that may impact the use of this standard. (Approved Mar. 1, 2005.)(1) Identification of E 54 as historical document.

32、(2) Correction of Typographical error on Temper Designationin 7.1.(3) Minor editing of Keywords.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determin

33、ation of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or wit

34、hdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that yo

35、ur comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).B455053