ASTM B61-08(2013)
(Specification)Standard Specification for Steam or Valve Bronze Castings
Standard Specification for Steam or Valve Bronze Castings
ABSTRACT
This specification establishes requirements for a high-grade steam-metal or valve-bronze alloy (Copper Alloy UNS C92200) used for component castings of valves, flanges, and fittings. Tensile strength, yield strength, and elongation shall be determined from separately cast test bars and shall meet the specified requirements. Castings shall not be plugged, welded, burned-in, or impregnated.
SCOPE
1.1 This specification2 establishes requirements for a high-grade steam-metal or valve-bronze alloy (Copper Alloy UNS No. C922003) used for component castings of valves, flanges, and fittings.
1.2 The castings covered are used in products that may be manufactured in advance and supplied from stock by the manufacturer or other dealer.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B61 −08(Reapproved 2013)
Standard Specification for
Steam or Valve Bronze Castings
This standard is issued under the fixed designation B61; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) 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 2.2 MSS Standards:
2 SP-25 Standard Marking System for Valves, Fittings,
1.1 This specification establishes requirements for a high-
Flanges and Unions
grade steam-metal or valve-bronze alloy (Copper Alloy UNS
No. C92200 ) used for component castings of valves, flanges,
3. General Requirements
and fittings.
3.1 The following sections of Specification B824 form a
1.2 The castings covered are used in products that may be
part of this specification. In the event of a conflict between this
manufactured in advance and supplied from stock by the
specification and Specification B824, the requirements of this
manufacturer or other dealer.
specification shall take precedence.
3.1.1 Terminology (Section 3),
1.3 The values stated in inch-pound units are to be regarded
3.1.2 Other Requirements (Section 7),
as standard. The values given in parentheses are mathematical
3.1.3 Dimensions, Mass, and Permissible Variations (Sec-
conversions to SI units that are provided for information only
tion 8),
and are not considered standard.
3.1.4 Workmanship, Finish, and Appearance (Section 9),
2. Referenced Documents
3.1.5 Sampling (Section 10),
3.1.6 Number of Tests and Retests (Section 11),
2.1 ASTM Standards:
3.1.7 Specimen Preparation (Section 12),
B208 Practice for Preparing Tension Test Specimens for
3.1.8 Test Methods (Section 13),
Copper Alloy Sand, Permanent Mold, Centrifugal, and
3.1.9 Significance of Numerical Limits (Section 14),
Continuous Castings
3.1.10 Inspection (Section 15),
B824 Specification for General Requirements for Copper
3.1.11 Rejection and Rehearing (Section 16),
Alloy Castings
3.1.12 Certification (Section 17),
B846 Terminology for Copper and Copper Alloys
3.1.13 Test Report (Section 18),
E527 Practice for Numbering Metals and Alloys in the
3.1.14 Product Marking (Section 19), and
Unified Numbering System (UNS)
3.1.15 Packaging and Package Marking (Section 20).
4. Terminology
This practice is under the jurisdiction ofASTM Committee B05 on Copper and
CopperAlloys and is the direct responsibility of Subcommittee B05.05 on Castings
4.1 For definitions of terms relating to copper and copper
and Ingots for Remelting.
alloys, refer to Terminology B846.
Current edition approved Oct. 1, 2013. Published November 2013. Originally
approved in 1927. Last previous edition approved in 2008 as B61 – 08. DOI:
5. Ordering Information
10.1520/B0061-08R13.
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
5.1 Include the following information when placing orders
cation SB-61 of that Code.
3 for castings under this specification:
The UNS system for copper and copper alloys (see Practice E527) is a simple
5.1.1 Quantity of castings required,
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
5.1.2 Copper Alloy UNS No. (Table 1),
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 AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
Standards volume information, refer to the standard’s Document Summary page on Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
the ASTM website. hq.com.
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B61−08 (2013)
TABLE 1 Chemical Requirements, Copper Alloy UNS No. C92200
analyzed and 100 %. When all named elements in Table 1 are
Composition, % max (Except as analyzed, their sum shall be as follows:
Major Elements
indicated)
Copper plus named elements, 99.3% minimum. (1)
Copper 86.0–90.0
Tin 5.5–6.5
6.3 It is recognized that residual elements may be present in
Lead 1.0–2.0
cast copper base alloys. Analysis shall be made for residual
Zinc 3.0–5.0
A
elements only when specified in the purchase order (Specifi-
Nickel incl Cobalt 1.0
Composition, % max (Except as
cation B824).
Residual Elements indicated)
Iron 0.25
7. Mechanical Property Requirements
Antimony 0.25
Sulfur 0.05
7.1 Mechanical properties shall be determined from sepa-
Phosphorus 0.05
rately cast
...
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