ASTM B22/B22M-17

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B22/B22M − 15 B22/B22M − 17
Standard Specification for
Bronze Castings for Bridges and Turntables
This standard is issued under the fixed designation B22/B22M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last 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 U.S. Department of Defense.
1. Scope*
1.1 This specification establishes requirements for bronze castings for turntables, movable bridges and bridge parts, and bronze
castings suitable for use in bridges and other structures for fixed and expansion bearings in which motion is slow and intermittent.
The following Copper Alloys are specified: UNS No. C86300, C90500, C91100, C91300, and C93700.
NOTE 1—Historically, the alloys in this specification have been used in the applications listed in Appendix X1. Actual practice may vary.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, SI units
are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification:
1.3.1 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 and health practices and determine the applicability of regulatory
limitations prior to use.
1.4 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
2.1 The following documents in the current issue of the Book of Standards form a part of this specification to the extent
referenced herein:
2.2 ASTM Standards:
B824 Specification for General Requirements for Copper Alloy Castings
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E9 Test Methods of Compression Testing of Metallic Materials at Room Temperature
E10 Test Method for Brinell Hardness of Metallic Materials
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. General Requirements
3.1 The following sections of Specification B824 form a part of this specification. In the event of a conflict between this
specification and Specification B824, the requirements of this specification shall take precedence.
3.1.1 Terminology,
3.1.2 Other Requirements,
3.1.3 Dimensions, Mass, and Permissible Variations,
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on Castings
and Ingots for Remelting.
Current edition approved May 1, 2015April 1, 2017. Published June 2015May 2017. Originally approved in 1936. Last previous edition approved in 20142015 as
B0022/B22M – 14.B0022/B22M- 15. DOI: 10.1520/B0022_B0022M-15.10.1520/B0022_B0022M-17.
This specification was prepared in cooperation with representatives of the American Association of State Highway Officials and the American Railway Engineering
Association.
The UNS system for copper and copper alloys (see Practice E527) is a 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 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 the ASTM website.
*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
B22/B22M − 17
3.1.4 Workmanship, Finish, and Appearance,
3.1.5 Sampling,
3.1.6 Number of Tests and Retests,
3.1.7 Specimen Preparation,
3.1.8 Test Methods,
3.1.9 Significance of Numerical Limits,
3.1.10 Inspection,
3.1.11 Rejection and Rehearing,
3.1.12 Certification,
3.1.13 Test Report,
3.1.14 Product Marking,
3.1.15 Packaging and Package Marking,
3.1.16 Keywords, and
TABLE 1 Chemical Requirements
Composition, % max, except as indicated
Copper
Nickel
Alloy
Copper Tin Lead Zinc Iron Including Aluminum Manganese Antimony Sulfur Phosphorus Silicon
UNS No.
Cobalt
A
C86300 60.0–66.0 0.20 0.20 22.0–28.0 2.0–4.0 1.0 5.0–7.5 2.5–5.0 . . . .
A B
C90500 86.0–89.0 9.0–11.0 0.30 1.0–3.0 0.20 1.0 0.005 . 0.20 0.05 0.05 0.005
A B
C91100 82.0–85.0 15.0–17.0 0.25 0.25 0.25 0.50 0.005 . 0.20 0.05 1.0 0.005
A B
C91300 79.0–82.0 18.0–20.0 0.25 0.25 0.25 0.50 0.005 . 0.20 0.05 1.0 0.005
C A B
C93700 78.0–82.0 9.0–11.0 8.0–11.0 0.8 0.7 0.50 0.005 . 0.50 0.08 0.10 0.005
A
In determining copper minimum, copper may be calculated as copper plus nickel.
B
For continuous castings, phosphorus shall be 1.5 % max.
C
Iron shall be 0.35 % max. when used for steel-backed.
3.1.17 Supplementary Requirements.
4. Terminology
4.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
5. Ordering Information
5.1 Include the following specified choices when placing orders for products covered under this specification, as applicable:
5.1.1 ASTM designation and year of issue (for example, B22/B22M-14),
5.1.2 Number of castings or total weight, for each size and form,
5.1.3 Copper Alloy UNS No. designation (see Table 1),
5.1.4 Temper,
5.1.5 Pattern or drawing number and condition (as-cast, machined, and so forth).
5.1.6 When material is purchased for agencies of the U.S. government, the Supplementary Requirements in Specification B824
may be specified.
5.2 The following options are available but may not be included unless specified at the time of placing of the order when
required:
5.2.1 Soundness requirements (Specification B824),
5.2.2 Certification (Specification B824),
5.2.3 Test Report (Specification B824),
5.2.4 Inspection (Specification B824),
5.2.5 Product marking (Specification B824), and
5.2.6 Heat identification or traceability details.
6. Materials and Manufacture
6.1 Material(s):
6.1.1 The material of manufacture shall be a casting of Copper Alloy UNS No.(s) C86300, C90500, C91100, C91300, or
C93700 of such purity and soundness as to be suitable for processing in to the products prescribed herein.
6.1.2 When specified in the contract or purchase order, that heat identification or traceability is required, the purchaser shall
specify the details desired.
6.2 Manufacture:
B22/B22M − 17
6.2.1 The product shall be manufactured by such casting methods to produce a uniform finished product.
7. Chemical Composition
7.1 The material shall conform to the chemical composition requirements in Table 1 for the copper alloy UNS No. designation
specified in the ordering information.
TABLE 2 Sum of All Named Elements Analyzed
Copper Alloy UNS No.
Elements, % min
Copper Plus Named
C86300 99.0
C90500 99.7
C91100 99.4
C91300 99.4
C93700 99.0
7.2 These composition limits do not preclude the presence of other elements. By agreement between the manufacturer and
purchaser, limits may be established and analysis required for unnamed elements.
7.3 For UNS No. C86300 copper or zinc may be taken as the difference between the sum of the results of all other elements
determined and 100 %.
7.4 For UNS No. C90500, C91100, C91300, and C93700 copper may be taken as the difference between the sum of the results
of all elements determined and 100 %.
7.5 When all named elements in Table 1 are determined, the sum of the results shall be as shown in Table 2.
8. Temper
8.1 The standard tempers for products described in this specification are given in Table 3A, Table 3B, and Table 3C.
8.1.1 As Sand Cast M01.
8.1.2 As Centrifugal Cast M02.
8.1.3 As Continuous Cast M07.
TABLE 3 A Mechanical Requirements (As Sand Cast)
Yield Strength, at 0.5 % Extension Compression Deformation
Tensile Strength, min.
Copper Alloy Elongation in Brinell Hardness,
Under Load, min Limit, min
Temper
UNS No. 2 in. [50 mm], % min
A B A B A B
ksi [MPa] ksi [MPa] ksi [MPa]
M01 C86300 110 [760] 60 [415] 12 223 (3000 kg) 55 [380]
M01 C90500 40 [275] 18 [125] 20 . . .
M01 C91100 . . . . . 135 18 [125]
M01 C91300 . . . . . 170 24 [165]
M01 C93700 30 [205] 12 [85] 15 . . .
TABLE 3 B Mechanical Requirements (As Centrifugal Cast)
Yield Strength, at 0.5 % Extension Compression Deforma
...