ASTM B66-15(2021)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B66 −15 (Reapproved 2021)
Standard Specification for
Bronze Castings for Steam Locomotive Wearing Parts
This standard is issued under the fixed designation B66; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber 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* E255 Practice for Sampling Copper and Copper Alloys for
the Determination of Chemical Composition
1.1 This specification establishes requirements for bronze
E527 Practice for Numbering Metals and Alloys in the
castings for steam locomotive wearing parts. The following
Unified Numbering System (UNS)
Copper Alloy UNS Nos. are specified: C93200, C93400,
2.2 AAR Standards:
C93600, C93700, C93800, C94300, C94400, C94500, and
M-503 Bronze Bearings for Locomotives
C95400.
NOTE 1—Historically, the alloys in this specification have been used in
3. Terminology
the applications listed in the Appendix. Actual practice may vary accord-
ing to locomotive type and service.
3.1 For definitions of terms related to copper alloys, refer to
1.2 This standard does not purport to address all of the
Terminology B846.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 4. General Requirements
priate safety, health, and environmental practices and deter-
4.1 The following sections of Specification B824 form a
mine the applicability of regulatory limitations prior to use.
part of this specification. In the event of a conflict between this
1.3 This international standard was developed in accor-
specification and Specification B824, the requirements of this
dance with internationally recognized principles on standard-
specification shall take precedence.
ization established in the Decision on Principles for the
4.1.1 Terminology (Section 3),
Development of International Standards, Guides and Recom-
4.1.2 Other Requirements (Section 7),
mendations issued by the World Trade Organization Technical
4.1.3 Dimensions, Mass, and Permissible Variations (Sec-
Barriers to Trade (TBT) Committee.
tion 8),
4.1.4 Workmanship, Finish, and Appearance (Section 9),
2. Referenced Documents
4.1.5 Sampling (Section 10),
4.1.6 Number of Tests and Retests (Section 11),
2.1 ASTM Standards:
The following documents in the current issue of the Book of 4.1.7 Specimen Preparation (Section 12),
4.1.8 Test Methods (Section 13),
Standards form a part of this specification to the extent
4.1.9 Significance of Numerical Limits (Section 14),
referenced herein:
4.1.10 Inspection (Section 15),
B824 Specification for General Requirements for Copper
4.1.11 Rejection and Rehearing (Section 16),
Alloy Castings
4.1.12 Certification (Section 17),
B846 Terminology for Copper and Copper Alloys
4.1.13 Test Report (Section 18), and
4.1.14 Packaging and Package Marking (Section 20).
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
5. Ordering Information
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Castings and Ingots for Remelting.
5.1 Orders for castings under this specification should
Current edition approved Oct. 1, 2021. Published October 2021. Originally
include the following information in orders for product:
approved in 1936. Last previous edition approved in 2015 as B66 – 15. DOI:
5.1.1 ASTM designation and year of issue (for example,
10.1520/B0066-15R21.
The UNS system for copper and copper alloys (see Practice E527) is a simple B66–06),
expansion of the former standard designation system accomplished by the addition
5.1.2 Number of castings or total weight, for each size and
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate
form,
composition variations of the base alloy.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on Available from Association of American Railroads (AAR), 425 Third St., SW,
the ASTM website. Washington, DC 20024, http://www.aar.org.
*A Summary of Changes section appears at the end of this standard
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B66−15 (2021)
5.1.3 Copper Alloy UNS Number (Table 1), may be given as remainder and may be taken as the difference
5.1.4 Pattern or drawing number and condition (as cast, between the sum of all elements analyzed and 100 %.When all
machined, and so forth). named elements in Table 1 are analyzed, their sum shall be as
specified in Table 2.
5.2 The following are optional and should be specified in
the purchase order when required:
8. Casting Repair
5.2.1 Pressure test or soundness requirements (Specification
8.1 The castings shall not be repaired, plugged, welded, or
B824),
burned-in.
5.2.2 Certification (Specification B824),
5.2.3 Foundry test report (Specification B824),
9. Sampling
5.2.4 Witness inspection (Specification B824), and
9.1 Sampling shall be in accordance with the requirements
5.2.5 Product marking (Section 10).
of Practice E255.
6. Materials and Manufacture
10. Test Methods
6.1 Materials:
10.1 AnalyticalchemicalmethodsaregiveninSpecification
6.1.1 The material of manufacture shall be a casting of
B824 (Section 12).
Copper Alloy UNS Nos. C93200, C93400, C93600, C9370
...