ASTM B66-15(2021)

ASTM B66-15(2021) - 1.10.2021

1. Scope

1.1?This specification establishes requirements for bronze castings for steam locomotive wearing parts. The following Copper Alloy UNS Nos. are specified: C93200, C93400, C93600, C93700, C93800, C94300, C94400, C94500, and C95400.2

Note 1:?Historically, the alloys in this specification have been used in the applications listed in the Appendix. Actual practice may vary according to locomotive type and service.

1.2?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.3?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.

2. Referenced Documents

E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
M-503	Bronze Bearings for Locomotives Available from Association of American Railroads (AAR), 425 Third St., SW, Washington, DC 20024, http://www.aar.org.
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
B824-17	Standard Specification for General Requirements for Copper Alloy Castings