ASTM B271-06

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.
1.2 The values stated in inch-pound units are the standard. SI values in parentheses are given for information only.

General Information

• Status: Historical
• Publication Date: 30-Sep-2006
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.05 - Castings and Ingots for Remelting

Relations

• Replaces: ASTM B271-96(2003) - Standard Specification for Copper-Base Alloy Centrifugal Castings
• Effective Date: 01-Oct-2006
• Replaced By: ASTM B271-08 - Standard Specification for Copper-Base Alloy Centrifugal Castings
• Effective Date: 01-Oct-2008
• Referred By: ASTM F998-12(2022) - Standard Specification for Centrifugal Pump, Shipboard Use
• Effective Date: 01-Oct-2006
• Referred By: ASTM F1511-18(2023) - Standard Specification for Mechanical Seals for Shipboard Pump Applications
• Effective Date: 01-Oct-2006
• Referred By: ASTM F2798-09(2023) - Standard Specification for Sealless Lube Oil Pump with Oil Through Motor for Marine Applications
• Effective Date: 01-Oct-2006
• Referred By: ASTM F1718-01(2019) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 01-Oct-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 271 – 06
Standard Specification for
1
Copper-Base Alloy Centrifugal Castings
This standard is issued under the fixed designation B 271; 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 Department of Defense.
1. Scope* 4.1.5 ASME Boiler and Pressure Vessel Code requirements
(Section 9),
1.1 This specification establishes requirements for centrifu-
4.1.6 When castings are purchased for agencies of the U.S.
gal castings of copper-base alloys having the nominal compo-
Government,theSupplementaryRequirementsinSpecification
sitions shown in Table 1.
B 824 may be specified.
1.2 The values stated in inch-pound units are the standard.
4.2 The following are optional and should be specified in
SI values in parentheses are given for information only.
the purchase order when required:
2. Referenced Documents 4.2.1 Chemical analysis of residual elements (Section 6.3),
4.2.2 Pressure test or soundness requirements (Specification
2.1 The following documents in the current issue of the
B 824),
BookofStandardsformapartofthisspecificationtotheextent
4.2.3 Approval of weld repair (Section 8),
referenced herein:
2
4.2.4 Certification (Specification B 824),
2.2 ASTM Standards:
4.2.5 Foundry test report (Specification B 824),
B 208 Practice for Preparing Tension Test Specimens for
4.2.6 Witness inspection (Specification B 824),
Copper Alloy Sand, Permanent Mold, Centrifugal, and
4.2.7 Product marking (Specification B 824), and
Continuous Castings
4.2.8 Castings for seawater service (Section X1.2).
B 824 Specification for General Requirements for Copper
Alloy Castings
5. Materials and Manufacture
B 846 Terminology for Copper and Copper Alloys
5.1 Castings in Copper Alloy UNS No. C95520 are used in
3. Terminology
the heat treated condition only.
3.1 Definitions of terms relating to copper alloys can be
6. Chemical Composition
found in Terminology B 846.
6.1 The centrifugal castings shall conform to the chemical
4. Ordering Information
requirement shown in Table 2 for the Copper Alloy UNS
Numbers specified in the purchase order.
4.1 Orders for centrifugal castings under this specification
6.2 These specification limits do not preclude the presence
should include the following information:
of other elements. Limits may be established and analysis
4.1.1 Specification title, number, and year of issue,
required for unnamed elements agreed upon between the
4.1.2 Quantity (length or number) of castings,
manufacturer or supplier and the purchaser. Copper or zinc
4.1.3 Copper Alloy UNS Number (Table 1) and temper
may be given as remainder and may be taken as the difference
(as-cast, heat-treated, and so forth),
between the sum of all elements analyzed and 100 %.When all
4.1.4 Dimensions or drawing number and condition (as-
named elements in Table 2 are analyzed, their sum shall be as
cast, machined, and so forth),
specified in Table 3.
6.3 It is recognized that residual elements may be present in
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
cast copper-base alloys. Analysis shall be made for residual
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
elements only when specified in the purchase order.
Castings and Ingots for Remelting.
Current edition approved Oct. 1, 2006. Published October 2006. Originally
7. Mechanical Properties
approved in 1954. Last previous edition approved in 2003 as B 271 – 96 (2003).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1 Mechanical properties shall be determined from test bar
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
castings cast in accordance with Practice B 208 and shall meet
Standards volume information, refer to the standard’s Document Summary page on
the requirements shown in Table 4.
the ASTM website.
*ASummary 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

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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
B271–06
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
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:B271–96 Designation: B 271 – 06
Standard Specification for
1
Copper-Base Alloy Centrifugal Castings
This standard is issued under the fixed designation B 271; 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*
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 inch-pound units are the standard. SI values in parentheses are given for information only.
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:
B 208 Practice for Preparing Tension Test Specimens for Copper-Base Alloys for Copper Alloy Sand, Permanent Mold,
Centrifugal, and Continuous Castings
B 824 Specification for General Requirements for Copper Alloy Castings
B 846 Terminology for Copper and Copper Alloys
3. Terminology
3.1 Definitions of terms relating to copper alloys can be found in Terminology B 846.
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, etc.),
4.1.4Dimensions or drawing number and condition (as-cast, machined, etc.), ) 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
B 824 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 B 824),
4.2.3 Approval of weld repair (Section 8),
4.2.4 Certification (Specification B 824),
4.2.5 Foundry test report (Specification B 824),
4.2.6 Witness inspection (Specification B 824),
4.2.7 Product marking (Specification B 824), and
4.2.8 Castings for seawater service (Section 5.2X1.2).
5. Materials and Manufacture
5.1Castings in Copper Alloy UNS Nos. C95300, C95400, C95410, and C95500 may be supplied in the heat treated condition
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.05 on Castings
and Ingots for Remelting.
Current edition approved Sept. 10, 1996. Published November 1996. Originally published as B271–54. Last previous edition B271–95.
Current edition approved Oct. 1, 2006. Published October 2006. Originally approved in 1954. Last previous edition approved in 2003 as B 271 – 96 (2003).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
, Vol 02.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary 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 ----------------------
B271–06
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 . . . . .
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
C8640
...