ASTM B22-95

Standard Specification for Bronze Castings for Bridges and Turntables

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 where motion is slow and intermittent. 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 inch-pound units are the standard. SI values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 31-Dec-1994
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.05 - Castings and Ingots for Remelting

Relations

• Replaced By: ASTM B22-02 - Standard Specification for Bronze Castings for Bridges and Turntables
• Effective Date: 10-Oct-2002

Standards Content (Sample)

Designation: B 22 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
1
Bronze Castings for Bridges and Turntables
This standard is issued under the fixed designation B 22; 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 (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 * 3. Terminology
1.1 This specification establishes requirements for bronze 3.1 Definitions of terms relating to copper alloys can be
castings for turntables, movable bridges and bridge parts, and found in Terminology B 846.
bronze castings suitable for use in bridges and other structures
4. Ordering Information
for fixed and expansion bearings in which motion is slow and
4.1 Orders for castings under this specification should
intermittent. Historically, the alloys in this specification have
include the following information:
been used in the applications listed in Appendix X1. Actual
2
practice may vary. 4.1.1 Specification title, number, and year of issue,
4.1.2 Quantity of castings,
1.2 The values stated in inch-pound units are the standard.
SI values given in parentheses are for information only. 4.1.3 Copper Alloy UNS Number (Table 1),
4.1.4 Pattern or drawing number and condition (as-cast,
2. Referenced Documents
machined, and so forth), and
2.1 The following documents in the current issue of the 4.1.5 When material is purchased for agencies of the U.S.
Book of Standards form a part of this specification to the extent Government, the Supplementary Requirements in Specification
referenced herein: B 824 may be specified.
2.2 ASTM Standards: 4.2 The following are optional and should be specified in
B 208 Practice for Preparing Tension Test Specimens for the purchase order when required:
Copper-Base Alloys for Sand, Permanent Mold, Centrifu- 4.2.1 Chemical analysis of residual elements (Section 5.3),
3
gal, and Continuous Castings 4.2.2 Soundness requirements (Specification B 824),
B 824 Specification for General Requirements for Copper 4.2.3 Certification (Specification B 824),
3
Alloy Castings 4.2.4 Foundry test report (Specification B 824),
3
B 846 Terminology for Copper and Copper Alloys 4.2.5 Witness inspection (Specification B 824), and
E 10 Test Method for Brinell Hardness of Metallic Materi- 4.2.6 Product marking (Specification B 824).
4
als
5
5. Chemical Composition
E 527 Practice for Numbering Metals and Alloys (UNS)
5.1 The castings shall conform to the compositional require-
ments for named elements as shown in Table 1 for the Copper
Alloy UNS Numbers specified in the purchase order.
1
5.2 These specification limits do not preclude the presence
This practice is under the jurisdiction of ASTM Committee B-5 on Copper and
Copper Alloys and is the direct responsibility of Subcommittee B05.05 on Castings
of other elements. Limits may be established and analysis
and Ingots for Remelting.
required for unnamed elements agreed upon between the
Current edition approved Nov. 10, 1995. Published January 1996. Originally
manufacturer or supplier and the purchaser.
published as B 22 – 36 T. Last previous edition B 22 – 93a.
This specification was prepared in cooperation with representatives of the 5.3 Copper or zinc may be taken as the difference between
American Association of State Highway Officials and the American Railway
the sum of all elements determined and 100 % for Copper
Engineering Association.
Alloy UNS No. C86300.
2
The UNS system for copper and copper alloys (see Practice E 527) is a simple
5.4 Copper may be taken as the difference between the sum
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
of all elements determined and 100 % for Copper Alloy UNS
composition variations of the base alloy.
Nos. C90500, C91100, C91300, and C93700.
3
Annual Book of ASTM Standards, Vol 02.01.
4 5.5 When all named elements listed in Table 1 are deter-
Annual Book of ASTM Standards, Vol 03.01.
5
Annual Book of ASTM Standards, Vol 01.01. mined their sum shall be as given below:
*A Summary of Changes section appears at the end of this standard.
1

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B22
TABLE 1 Chemical Requirements
Composition, % max Except as Indicated
Copper
Major Elements Residual Elements
Alloy
UNS Nickel Nickel Phos- Alu-
Alumi- Man- Anti- Sili-
No.
Copper Tin Lead Zinc Iron Including Iron Incl. Sulfur pho- mi-
num ganese mony con
Cobalt Cobalt rus num
C86300 60.0–66.0 0.20 0.20 22.0–28.0 2.0–4.0 . 5.0–7.5 2.5–5.0 . . 1.0 . . . .
A B
C90500 86.0–89.0 9.0–11.0 0.30 1.0–3.0 . 1.0 . . 0.20 0.20 .
...