1、Designation: B 66/B 66M 061Standard Specification forBronze Castings for Steam Locomotive Wearing Parts1This standard is issued under the fixed designation B 66/B 66M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1NOTEParagraphs 1.1 and 6.1.1 editorially updated in
3、 January 2009.1. Scope*1.1 This specification establishes requirements for bronzecastings for steam locomotive wearing parts. The followingCopper Alloy UNS Nos. are specified: C93200, C93400,C93600, C93700, C93800, C94300, C94400, C94500, andC95400.2NOTE 1Historically, the alloys in this specificati
4、on have been used inthe applications listed in the Appendix. Actual practice may vary accord-ing to locomotive type and service.1.2 UnitsThe values stated in inch-pound or SI units areto be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each
5、 systemshall be used independently of the other. Combining valuesfrom the two systems may result in nonconformance with thestandard.1.3 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 establ
6、ish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3The following documents in the current issue of the Book ofStandards form a part of this specification to the extentreferenced herein:B 824
7、Specification for General Requirements for CopperAlloy CastingsB 846 Terminology for Copper and Copper AlloysE 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.2 AAR Sta
8、ndards:M-503 Bronze Bearings for Locomotives43. Terminology3.1 For definitions of terms related to copper alloys, refer toTerminology B 846.4. General Requirements4.1 The following sections of Specification B 824 form apart of this specification. In the event of a conflict between thisspecification
9、and Specification B 824, the requirements of thisspecification shall take precedence.4.1.1 Terminology (Section 3),4.1.2 Other Requirements (Section 7),4.1.3 Dimensions, Mass, and Permissible Variations (Sec-tion 8),4.1.4 Workmanship, Finish, and Appearance (Section 9),4.1.5 Sampling (Section 10),4.
10、1.6 Number of Tests and Retests (Section 11),4.1.7 Specimen Preparation (Section 12),4.1.8 Test Methods (Section 13),4.1.9 Significance of Numerical Limits (Section 14),4.1.10 Inspection (Section 15),4.1.11 Rejection and Rehearing (Section 16),4.1.12 Certification (Section 17),4.1.13 Test Report (Se
11、ction 18), and4.1.14 Packaging and Package Marking (Section 20).5. Ordering Information5.1 Orders for castings under this specification shouldinclude the following information in orders for product:5.1.1 ASTM designation and year of issue (for example,B 66/B 66M06),1This specification is under the j
12、urisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.05 onCastings and Ingots for Remelting.Current edition approved Oct. 1, 2006. Published October 2006. Originallyapproved in 1936. Last previous edition approved in 2003 as B 66 95 (2003).
13、2The UNS system for copper and copper alloys (see Practice E 527) is a simpleexpansion of the former standard designation system accomplished by the additionof a prefix “C” and a suffix “00”. The suffix can be used to accommodatecomposition variations of the base alloy.3For referenced ASTM standards
14、, 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.4Available from Association of American Railroads, Mechanical Division, 50 FStreet NW, Wash
15、ington, DC 20001.1*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.5.1.2 Number of castings or total weight, for each size andform,5.1.3 Copper Alloy UNS Number (Table 1
16、),5.1.4 Pattern or drawing number and condition (as cast,machined, and so forth).5.2 The following are optional and should be specified inthe purchase order when required:5.2.1 Chemical analysis of residual elements, if specified inthe purchase order (Section 7.3 and specification B 824),5.2.2 Press
17、ure test or soundness requirements (SpecificationB 824),5.2.3 Certification (Specification B 824),5.2.4 Foundry test report (Specification B 824),5.2.5 Witness inspection (Specification B 824), and5.2.6 Product marking (Section 10).6. Materials and Manufacture6.1 Materials:6.1.1 The material of manu
18、facture shall be a casting ofCopper Alloy UNS Nos. C93200, C93400, C93600, C93700,C93800, C94300, C94400, C94500, or C95400 of such purityand soundness as to be suitable for processing into the productsprescribed herein.6.1.2 In the event heat identification or traceability isrequired, the purchaser
19、 shall specify the details desired.6.2 ManufactureThe product shall be manufactured bysuch casting methods to produce a uniform finished product.7. Chemical Composition7.1 The castings shall conform to the compositional require-ments for named elements shown in Table 1 for the CopperAlloy UNS Number
20、s specified in the purchase order.7.2 These specification limits do not preclude the presenceof other elements. Limits may be established and analysisrequired for unnamed elements agreed upon between themanufacturer or supplier and the purchaser. Copper or zincmay be given as remainder and may be ta
21、ken as the differencebetween the sum of all elements analyzed and 100 %. When allnamed elements in Table 1 are analyzed, their sum shall be asspecified in Table 2.7.3 It is recognized that residual elements may be present incast copper base alloys. Analysis shall be made for residualelements only wh
22、en specified in the purchase order.8. Casting Repair8.1 The castings shall not be repaired, plugged, welded, orburned-in.9. Sampling9.1 Sampling shall be in accordance with the requirementsof Practice E 255.10. Test Methods10.1 Analytical chemical methods are given in SpecificationB 824 (Section 12)
23、.10.1.1 Test methods to be followed for the determination ofelements resulting from contractual or purchase order agree-ment shall be as agreed upon between the manufacturer orsupplier and the purchaser.11. Product Marking11.1 All castings shall have the manufacturers initial ortrademark, the patter
24、n number, and such other marks as areshown on the drawings cast on them. When serial numbers arespecified, each 100 castings, or fraction thereof, shall bear thesame serial number, commencing with the numeral one (1) atthe beginning of the year and continuing consecutively untilthe end of the year,
25、at each manufacturers plant.TABLE 1 Chemical RequirementsNOTE 1Composition % max except as indicatedMajor Elements Residual ElementsCopperAlloy UNSNo.Copper Tin Lead ZincNickel(incl Co)Iron AluminumManga-neseIron AntimonyPhos-phorusASulphur Aluminum SiliconC93200 81.085.0B6.37.5 6.88.0 1.04.0 . . .
26、. 0.20 0.35 0.15 0.08 0.005 0.005C93400 82.085.0B7.09.0 7.09.0 0.8 . . . . 0.20 0.50 0.50 0.08 0.005 0.005C93600 79.083.0 6.08.0 11.013.0 1.0 . . . . 0.20 0.55 0.15 0.08 0.005 0.005C93700 78.082.0 9.011.0 8.011.0 0.8 . . . . 0.15 0.50 0.15 0.08 0.005 0.005C93800 75.079.0 6.37.5 13.016.0 0.8 1.0 . .
27、. 0.15 0.8 0.05 0.08 0.005 0.005C94300 67.072.0 4.56.0 23.027.0 0.8 1.0 . . . 0.15 0.8 0.05 0.08C0.005 0.005C94400 remainder 7.09.0 9.012.0 0.80 1.0 . . . 0.15 0.8 0.05 0.08 0.005 0.005C94500 remainder 6.08.0 16.022.0 1.2 1.0 . . . 0.15 0.8 0.05 0.08 0.005 0.005C95400 83.0 min . . . 1.5 3.05.0 10.01
28、1.5 0.50 . . . . . .AFor continuous castings, phosphorus shall be 1.5 % max.BIn determining copper minimum, copper may be calculated as copper plus nickel.CFor continuous castings, sulfur shall be 0.25 %.TABLE 2 Sum of Named Elements AnalyzedCopper Alloy UNS No.Copper Plus NamedElements,% minC93200
29、99.0C93400 99.0C93600 99.3C93700 99.0C93800 99.0C94300 99.0C94400 99.0C94500 99.0C95400 99.5B 66/B 66M 061212. Keywords12.1 bronze castings; copper-alloy castings; locomotivewearing partsAPPENDIX(Nonmandatory Information)X1. APPLICATIONS FOR ALLOYS IN THIS STANDARDX1.1 The alloys in this specificati
30、on have historically beenused in the applications listed below. Actual practice may varyaccording to locomotive type and service. This information isprovided for “information only” and should not be consideredas recommendations.X1.2 Copper Alloy UNS No. C93400For side rod bush-ings and cross-head gi
31、bs.X1.3 Copper Alloy UNS No. C93600For side rod bush-ings.X1.4 Copper Alloy UNS No. C93700For shoes andwedges.X1.5 Copper Alloy UNS No. C93800 (Formerly HardBronze)General purpose wearing metal, may be cast in eithersand or metal molds, for rod bushings, shoes and wedges,cross-head gibs, engine truc
32、k, driving boxes and trailer brasses.X1.6 Copper Alloy UNS No. C94300 (Formerly SoftBronze)Generally cast in metal molds for driving boxes andspecial purposes where a soft metal is desired.X1.7 Copper Alloy UNS No. C94400 (Formerly PhosphorBronze)Shoes and wedges, floating rod bushings, or otheruses
33、 where a hard wearing surface is required.X1.8 Copper Alloy UNS No. C94500 (Formerly MediumBronze)May be cast in sand or metal molds for driving-boxengine and trailer truck brasses, hub liners, and bearingsrequiring lining metal for facing or lining.X1.9 Copper Alloy UNS No. C95400For shoes, wedgesa
34、nd hub liners.SUMMARY OF CHANGESCommittee B05 has identified the location of selected changes to this standard since the last issue(B 66 95 (2003) that may impact the use of this standard. (Approved Oct. 1, 2006)(1) Completed a comprehensive five-year review. Some sec-tions were renumbered and, in s
35、ome cases, reworded toconform to the B05 Outline of Form and the ASTM Form andStyle.(2) Added the safety caveat.(3) Changed Table 1, Chemical Requirements, to reflect thecurrent CDA Standard Designations. Some required chemicalcompositions have been changed.(4) Added Practice E 255 to Section 2.1, R
36、eferenced Docu-ments, and Section 9, Sampling.(5)Added Section 6, Materials and Manufacture, in accordancewith the requirements of the Outline of Form.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Use
37、rs of this standard are expressly advised that determination 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
38、 five years andif not revised, either reapproved or withdrawn. 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 technic
39、al committee, which you may attend. If you feel that your 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).B 66/B 66M 0613
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