ASTM B61-93

Designation: B 61 – 93
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
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Steam or Valve Bronze Castings
This standard is issued under the fixed designation B 61; 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 * 3.1.2 Copper Alloy UNS No. (Table 1),
2
3.1.3 Specification title, number, and year of issue,
1.1 This specification establishes requirements for a high-
3.1.4 Pattern or drawing number and condition (as-cast,
grade steam-metal or valve-bronze alloy (Copper Alloy UNS
3
machined, etc.),
No. C92200 ) used for component castings of valves, flanges,
3.1.5 Chemical analysis of residual elements if specified in
and fittings.
the purchase order (Specification B 824),
1.2 The castings covered are used in products that may be
3.1.6 Pressure test requirements, if specified in the purchase
manufactured in advance and supplied from stock by the
order (Specification B 824),
manufacturer or other dealer.
3.1.7 Soundness requirements, if specified in the purchase
1.3 The values stated in inch-pound units are to be regarded
order (Specification B 824),
as the standard. Metric values given in parenthesis are for
3.1.8 Certification, if specified in the purchase order (Speci-
information only.
fication B 824),
2. Referenced Documents
3.1.9 Foundry test report, if specified in the purchase order
(Specification B 824),
2.1 The following documents of the issue in effect on date
3.1.10 Witness inspection, if specified in the purchase order
of material purchase form a part of this specification to the
(Specification B 824),
extent referenced herein:
3.1.11 ASME boiler and pressure vessel application (Sec-
2.2 ASTM Standards:
tion 9), and
B 208 Practice for Preparing Tension Test Specimens for
3.1.12 Product marking, if specified in the purchase order
Copper-Base Alloys for Sand, Permanent Mold, Centrifu-
4
(Specification B 824 and Section 10).
gal, and Continuous Castings
3.2 When material is purchased for agencies of the U.S.
B 824 Specification for General Requirements for Copper
4
Government, the Supplementary Requirements in Specification
Alloy Castings
5
B 824 may be specified.
E 527 Practice for Numbering Metals and Alloys (UNS)
2.3 MSS Standards:
4. Chemical Composition
SP-25 Standard Marking System for Valves, Fittings,
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4.1 The alloy shall conform to the chemical requirements
Flanges and Unions
for major elements specified in Table 1.
3. Ordering Information
4.2 These specification limits do not preclude the presence
of other elements. Limits may be established for unnamed
3.1 Orders for castings under this specification shall include
elements by agreement between manufacturer or supplier and
the following:
purchaser. Copper or zinc may be given as remainder and may
3.1.1 Quantity of castings required,
be taken as the difference between the sum of all elements
analyzed and 100 %. When all named elements in Table 1 are
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This practice is under the jurisdiction of ASTM Committee B-5 on Copper and
analyzed, their sum shall be as follows:
Copper Alloys and is the direct responsibility of Subcommittee B05.05 on Castings
and Ingots for Remelting. Copper plus named elements, 99.3 % minimum. (1)
Current edition approved Feb. 15, 1993. Published April 1993. Originally
4.3 It is recognized that residual elements may be present in
published as B 61 – 27 T. Last previous edition B 61 – 90.
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cast copper base alloys. Analysis shall be made for residual
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SB-61 of that Code.
elements only when specified in the purchase order (Specifi-
3
The UNS system for copper and copper alloys (see Practice E 527) is a simple
cation B 824).
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
5. Mechanical Properties
composition variations of the base alloy.
4
Annual Book of ASTM Standards, Vol 02.01.
5.1 Mechanical properties shall be determined from sepa-
5
Annual Book of ASTM Standards, Vol 01.01.
6 rately cast test bars and shall meet the requirements shown in
Available from Manufacturers Standardization Society of the Valve and Fittings
Table 2.
Industry, 127 Park Street NE, Vienna, VA 22180.
*A Summary of Changes section appears at the end of this standard.
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B61
TABLE 1 Chemical Requirements, Copper Alloy UNS No. C92200
7. General Requirements
Composition, % max (Except as
Major Elements
7.1 Material furnished under this specification shall con-
indicated)
...