ASTM B271/B271M-14a
(Specification)Standard Specification for Copper-Base Alloy Centrifugal Castings
Standard Specification for Copper-Base Alloy Centrifugal Castings
ABSTRACT
This specification establishes the requirements for copper-based brass or bronze centrifugal castings. Mechanical properties are determined from test bar castings and should meet the requirements listed herein. Brinell hardness readings should be taken on the grip end of tension test bars. All castings should not be repaired by welding without customer approval. UNS C95520 copper alloy castings are used in the heat treated condition only.
SCOPE
1.1 This specification establishes requirements for centrifugal castings of copper-base alloys having the nominal compositions shown in Table 1. (A) Phosphorus 0.13
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.
General Information
Relations
Buy Standard
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:B271/B271M −14a
StandardSpecification for
1
Copper-Base Alloy Centrifugal Castings
This standard is issued under the fixed designation B271/B271M; 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* 4. Ordering Information
1.1 This specification establishes requirements for centrifu- 4.1 Orders for centrifugal castings under this specification
gal castings of copper-base alloys having the nominal compo- should include the following information:
sitions shown in Table 1. 4.1.1 Specification title, number, and year of issue,
4.1.2 Quantity (length or number) of castings,
1.2 The values stated in either SI units or inch-pound units
4.1.3 Copper Alloy UNS Number (Table 1) and temper
are to be regarded separately as standard. The values stated in
(as-cast, heat-treated, and so forth),
each system may not be exact equivalents; therefore, each
4.1.4 Dimensions or drawing number and condition (as-
system shall be used independently of the other. Combining
cast, machined, and so forth),
values from the two systems may result in non-conformance
4.1.5 ASME Boiler and Pressure Vessel Code requirements
with the standard.
(Section 9),
4.1.6 When castings are purchased for agencies of the U.S.
2. Referenced Documents
Government,theSupplementaryRequirementsinSpecification
2.1 The following documents in the current issue of the
B824 may be specified.
BookofStandardsformapartofthisspecificationtotheextent
4.2 The following are optional and should be specified in
referenced herein:
the purchase order when required:
2
2.2 ASTM Standards:
4.2.1 Chemical analysis of residual elements (Section 6.3),
B208 Practice for Preparing Tension Test Specimens for
4.2.2 Pressure test or soundness requirements (Specification
Copper Alloy Sand, Permanent Mold, Centrifugal, and
B824),
Continuous Castings
4.2.3 Approval of weld repair (Section 8),
B824 Specification for General Requirements for Copper
4.2.4 Certification (Specification B824),
Alloy Castings
4.2.5 Foundry test report (Specification B824),
B846 Terminology for Copper and Copper Alloys
4.2.6 Witness inspection (Specification B824),
E10 Test Method for Brinell Hardness of Metallic Materials
4.2.7 Product marking (Specification B824), and
3
2.3 ASME Code:
4.2.8 Castings for seawater service (Section X1.2).
Boiler and Pressure Vessel Code
5. Materials and Manufacture
3. Terminology
5.1 Castings in Copper Alloy UNS No. C95520 are used in
3.1 Definitions of terms relating to copper alloys can be the heat treated condition only.
found in Terminology B846.
6. Chemical Composition
6.1 The centrifugal castings shall conform to the chemical
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
requirement shown in Table 2 for the Copper Alloy UNS
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Numbers specified in the purchase order.
Castings and Ingots for Remelting.
Current edition approved Sept. 1, 2014. Published September 2014. Originally
6.2 These specification limits do not preclude the presence
approved in 1954. Last previous edition approved in 2014 as B271/B271M – 14.
of other elements. Limits may be established and analysis
DOI: 10.1520/B0271_B0271M-14A.
required for unnamed elements agreed upon between the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
manufacturer or supplier and the purchaser. Copper or zinc
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
may be given as remainder and may be taken as the difference
the ASTM website.
between the sum of all elements analyzed and 100 %.When all
3
Available from American Society of Mechanical Engineers (ASME), ASME
named elements in Table 2 are analyzed, their sum shall be as
International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org. specified in Table 3.
*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
1
---------------------- Page: 1 ----------------------
B271/B271M−14a
TABLE 1 Nominal Compositions
Copper Alloy Commercial Alum- Mang-
Classification Copper Tin Lead Zinc Nickel Iron Silicon
UNS No. Designation inum anese
Leaded red brass C83600 85-5-5-5 85 5 5 5 . . . . .
C83800 83-4-6-7 or commercial red brass 83 4 6 7 . . . . .
Leaded semi-red brass C84400 81-3-7-9 or valve compo
...
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: B271/B271M − 14 B271/B271M − 14a
Standard Specification for
1
Copper-Base Alloy Centrifugal Castings
This standard is issued under the fixed designation B271/B271M; 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 centrifugal castings of copper-base alloys having the nominal compositions
shown in Table 1.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.
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
2.2 ASTM Standards:
B208 Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous
Castings
B824 Specification for General Requirements for Copper Alloy Castings
B846 Terminology for Copper and Copper Alloys
E10 Test Method for Brinell Hardness of Metallic Materials
3
2.3 ASME Code:
Boiler and Pressure Vessel Code
3. Terminology
3.1 Definitions of terms relating to copper alloys can be found in Terminology B846.
4. Ordering Information
4.1 Orders for centrifugal castings under this specification should include the following information:
4.1.1 Specification title, number, and year of issue,
4.1.2 Quantity (length or number) of castings,
4.1.3 Copper Alloy UNS Number (Table 1) and temper (as-cast, heat-treated, and so forth),
4.1.4 Dimensions or drawing number and condition (as-cast, machined, and so forth),
4.1.5 ASME Boiler and Pressure Vessel Code requirements (Section 9),
4.1.6 When castings are purchased for agencies of the U.S. Government, the Supplementary Requirements in Specification
B824 may be specified.
4.2 The following are optional and should be specified in the purchase order when required:
4.2.1 Chemical analysis of residual elements (Section 6.3),
4.2.2 Pressure test or soundness requirements (Specification B824),
1
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 April 1, 2014Sept. 1, 2014. Published May 2014September 2014. Originally approved in 1954. Last previous edition approved in 20112014 as
ϵ1
B271/B271M – 11B271/B271M – 14. . DOI: 10.1520/B0271_B0271M-14.10.1520/B0271_B0271M-14A.
2
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.
3
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org.
*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
1
---------------------- Page: 1 ----------------------
B271/B271M − 14a
TABLE 1 Nominal Compositions
Copper Alloy Commercial Alum- Mang-
Classification Copper Tin Lead Zinc Nickel Iron Silicon
UNS No. Designation inum anese
Leaded red brass C83600 85-5-5-5 85 5 5 5 . . . . .
C83800 83-4-6-7 or commercial red brass 83 4 6 7 . . . . .
Leaded semi-red brass C84400 81-3-7-9 or valve composition 81 3 7 9 . . . . .
1 1 1 1
C84800 76-2 ⁄2-6 ⁄2-15 or semi-red brass 76 2 ⁄2 6 ⁄2 15 . . . . .
Leaded yellow brass C85200 high copper yellow brass 72 1 3 24 . . . . .
C85400 commercial No. 1 yellow brass 67 1 3 29 . . . . .
A
Yellow brass C85470 62.5 2.5 . 34.3 . . 0.5 . .
Leaded yellow brass C85700 leaded naval brass 61 1 1 37 . . . . .
High-strength yellow brass C86200 high-strength manganese bronze 63 . . 27 . 3 4 3 .
C86300 high-strength manganese bronze 61 . . 27 . 3 6 3 .
1 1
C86400 leaded manganese bronze 58 1 1 38 .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.