1、Designation: B 66/B 66M 06Standard 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 last
2、 revision. A number in parentheses indicates the year of last reapproval.A superscript 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 establishes requirem
3、ents for bronzecastings for steam locomotive wearing parts. The followingCopper Alloy UNS Nos. are specified: C93200, C93400,C93600, C93700, C93800, C94300, C94400, and C94500.2NOTE 1Historically, the alloys in this specification have been used inthe applications listed in the Appendix. Actual pract
4、ice 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 systemshall be used independently of the other. Combining valuesfrom the
5、 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 establish appro-priate safety and health practices and determine the applica-bi
6、lity 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 Specification for General Requirements for CopperAlloy CastingsB 846 Term
7、inology 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 (UNS)2.2 AAR Standards:M-503 Bronze Bearings for Locomotives43. Terminology3.1 For definitions of terms related to coppe
8、r 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 and Specification B 824, the requirements of thisspecification shall take precedence.4.1.1 Terminology (
9、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),4.1.6 Number of Tests and Retests (Section 11),4.1.7 Specimen Preparation (Section 12),4.1.8 Test Methods
10、(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 (Section 18), and4.1.14 Packaging and Package Marking (Section 20).5. Ordering Information5.1 Orders for ca
11、stings 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),5.1.2 Number of castings or total weight, for each size andform,1This specification is under the jurisdiction ofASTM Committee B05 on Copp
12、erand 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).2The UNS system for copper and copper al
13、loys (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, visit the ASTM website, www.astm.org,
14、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, Washington, DC 20001.1*A Summary of Changes
15、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.5.1.3 Copper Alloy UNS Number (Table 1),5.1.4 Pattern or drawing number and condition (as cast,machined, and so forth).5.2 The following are o
16、ptional 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 Pressure test or soundness requirements (SpecificationB 824),5.2.3 Certification (Specification B 824),5.2.4
17、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 manufacture shall be a casting ofCopper Alloy UNS Nos. C93200, C93600, C93800, C94300,C94400, C94500, or C95
18、400 of such purity and soundness asto be suitable for processing into the products prescribedherein.6.1.2 In the event heat identification or traceability isrequired, the purchaser shall specify the details desired.6.2 ManufactureThe product shall be manufactured bysuch casting methods to produce a
19、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 Numbers specified in the purchase order.7.2 These specification limits do not preclude the presenceof other elements. Limits m
20、ay 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 taken as the differencebetween the sum of all elements analyzed and 100 %. When allnamed elements in Table 1 are analyzed,
21、 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 when specified in the purchase order.8. Casting Repair8.1 The castings shall not be repaired, plugged, welded, orburned-in
22、.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).10.1.1 Test methods to be followed for the determination ofelements resulting from contractual or purchase order agree-
23、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 pattern number, and such other marks as areshown on the drawings cast on them. When serial numbers arespecified, each 100 cast
24、ings, 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, at each manufacturers plant.12. Keywords12.1 bronze castings; copper-alloy castings; locomotivewearing partsTABLE 1 Chem
25、ical 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 . . . . 0.20 0.35 0.15 0.08 0.005 0.005C93400
26、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 . . . 0.15 0.8 0.05 0.08 0.005 0.005C94300 6
27、7.072.0 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 10.011.5 0.50 . . . . . .AFor continuous cast
28、ings, 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 99.0C93400 99.0C93600 99.3C93700 99.0C93
29、800 99.0C94300 99.0C94400 99.0C94500 99.0C95400 99.5B 66/B 66M 062APPENDIX(Nonmandatory Information)X1. APPLICATIONS FOR ALLOYS IN THIS STANDARDX1.1 The alloys in this specification have historically beenused in the applications listed below. Actual practice may varyaccording to locomotive type and
30、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 gibs.X1.3 Copper Alloy UNS No. C93600For side rod bush-ings.X1.4 Copper Alloy UNS No. C93700For shoes andwedges.X1.5 Copper
31、 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 truck, driving boxes and trailer brasses.X1.6 Copper Alloy UNS No. C94300 (Formerly SoftBronze)Generally cast in metal molds
32、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 where a hard wearing surface is required.X1.8 Copper Alloy UNS No. C94500 (Formerly MediumBronze)May be cast in sand or
33、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, wedgesand hub liners.SUMMARY OF CHANGESCommittee B05 has identified the location of selected changes to this standard since the
34、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 some cases, reworded toconform to the B05 Outline of Form and the ASTM Form andStyle.(2) Added the safety caveat.(3) Chang
35、ed 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, Referenced Docu-ments, and Section 9, Sampling.(5)Added Section 6, Materials and Manufacture, in accordancewith the requir
36、ements 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. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof in
37、fringement 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 withdrawn. Your comments are invited either for revision of this stan
38、dard 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 your comments have not received a fair hearing you shouldmake your v
39、iews 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 063
