ASTM B66-95(2003)
(Specification)Standard Specification for Bronze Castings for Steam Locomotive Wearing Parts
Standard Specification for Bronze Castings for Steam Locomotive Wearing Parts
SCOPE
1.1 This specification establishes requirements for bronze castings for steam locomotive wearing parts. 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 The values stated in inch-pound units are the standard.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: B 66 – 95 (Reapproved 2003)
Standard Specification for
Bronze Castings for Steam Locomotive Wearing Parts
ThisstandardisissuedunderthefixeddesignationB 66;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (ϵ) 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* 4.1.2 Quantity of castings,
4.1.3 Copper Alloy UNS Number (Table 1),
1.1 This specification establishes requirements for bronze
4.1.4 Pattern or drawing number and condition (as cast,
castings for steam locomotive wearing parts. Historically, the
machined, and so forth).
alloys in this specification have been used in the applications
4.2 The following are optional and should be specified in
listed in the Appendix. Actual practice may vary according to
the purchase order when required:
locomotive type and service.
4.2.1 Chemical analysis of residual elements, if specified in
1.2 The values stated in inch-pound units are the standard.
the purchase order (Section 5.3),
2. Referenced Documents
4.2.2 Pressure test or soundness requirements (Specification
B 824B 824),
2.1 ASTM Standards:The following documents in the cur-
4.2.3 Certification (Specification B 824B 824),
rent issue of the Book of Standards form a part of this
4.2.4 Foundry test report (Specification B 824B 824),
specification to the extent referenced herein:
4.2.5 Witness inspection (Specification B 824B 824), and
B 824 Specification for General Requirements for Copper
4.2.6 Product marking (Section 7).
Alloy Castings
B 846 Terminology for Copper and Copper Alloys
5. Chemical Composition
E 527 Practice for Numbering Metals and Alloys (UNS)
5.1 Thecastingsshallconformtothecompositionalrequire-
2.2 AAR Standards:
ments for named elements shown in Table 1 for the Copper
M-503 Bronze Bearings for Locomotives
Alloy UNS Numbers specified in the purchase order.
3. Terminology
5.2 These specification limits do not preclude the presence
of other elements. Limits may be established and analysis
3.1 Definitions of terms relating to copper alloys can be
required for unnamed elements agreed upon between the
found in Terminology B 846B 846.
manufacturer or supplier and the purchaser. Copper or zinc
4. Ordering Information
may be given as remainder and may be taken as the difference
between the sum of all elements analyzed and 100 %.When all
4.1 Orders for castings under this specification should
named elements in Table 1 are analyzed, their sum shall be as
include the following information:
specified in Table 2.
4.1.1 Specification title, number, and year of issue,
5.3 It is recognized that residual elements may be present in
cast copper base alloys. Analysis shall be made for residual
This practice is under the jurisdiction ofASTM Committee B05 on Copper and
elements only when specified in the purchase order.
CopperAlloys and is the direct responsibility of Subcommittee B05.05 on Castings
and Ingots for Remelting.
6. Casting Repair
Current edition approved Apr. 10, 2003. Published June 2003. Originally
approved in 1936. Last previous edition approved in 1995 as B 66 – 95.
6.1 The castings shall not be repaired, plugged, welded, or
The UNS system for copper and copper alloys (see Practice E 527E 527)isa
burned-in.
simple expansion of the former standard designation system accomplished by the
addition of a prefix “C” and a suffix “00”. The suffix can be used to accommodate
7. Test Methods
composition variations of the base alloy.
Annual Book of ASTM Standards, Vol 02.01.
7.1 Analytical chemical methods are given in Specification
Annual Book of ASTM Standards, Vol 01.01.
B 824B 824 (Section 12).
Available fromAssociation ofAmerican Railroads, Mechanical Division, 50 F
Street NW, Washington, DC 20001.
*ASummary 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.
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
B 66 – 95 (2003)
TABLE 1 Chemical Requirements
NOTE 1—Composition % max except as indicated
Major Elements Residual Elements
Copper Nickel Manga- Phos-
Copper Tin Lead Zinc Iron Aluminum Iron Antimony Sulphur Aluminum Silicon
Alloy No. (incl Co) nese phorus
C93200 81.0–85.0 6.3–7.5 6.8–8.0 1.0–4.0 . . . . 0.20 0.35 0.15 0.08 0.005 0.005
C93400 82.0–85.0 7.0–9.0 7.0–9.0 0.8 . . . . 0.20 0.50 0.50 0.08 0.005 0.005
C93600 79.0–83.0 6.0–8.0 11.0–13.0 1.0 . . . . 0.20 0.55 0.15 0.08 0.005 0.005
C93700 78.0–82.0 9.0–11.0 8.0–11.0 0.8 . . . . 0.15 0.50 0.15 0.08 0.005 0.005
C93800 75.0–79.0 6.3–7.5 13.0–16.0 0.8 1.0 . . . 0.15 0.8 0.05 0.08 0.005 0.005
C94300 67.0–72.0 4.5–6.0 23.0–27.0 0.8 1.0 . . . 0.15 0.8 0.05 0.08 0.005 0.005
C94400 remainder 7.0–9.0 9.0–12.0 0.80 1.0 . . . 0.15
...
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