ASTM B271-96(2003)

Standard Specification for Copper-Base Alloy Centrifugal Castings

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: 09-Apr-2003
• 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 - Standard Specification for Copper-Base Alloy Centrifugal Castings
• Effective Date: 10-Apr-2003
• Replaced By: ASTM B271-06 - Standard Specification for Copper-Base Alloy Centrifugal Castings
• Effective Date: 01-Oct-2006
• Referred By: ASTM F998-12(2022) - Standard Specification for Centrifugal Pump, Shipboard Use
• Effective Date: 10-Apr-2003
• Referred By: ASTM F2798-09(2023) - Standard Specification for Sealless Lube Oil Pump with Oil Through Motor for Marine Applications
• Effective Date: 10-Apr-2003
• Referred By: ASTM F1718-01(2019) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 10-Apr-2003
• Referred By: ASTM F1511-18(2023) - Standard Specification for Mechanical Seals for Shipboard Pump Applications
• Effective Date: 10-Apr-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 271 – 96 (Reapproved 2003)
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* 4.2 The following are optional and should be specified in
the purchase order when required:
1.1 This specification establishes requirements for centrifu-
4.2.1 Chemical analysis of residual elements (Section 6.3),
gal castings of copper-base alloys having the nominal compo-
4.2.2 Pressure test or soundness requirements (Specification
sitions shown in Table 1.
B 824),
1.2 The values stated in inch-pound units are the standard.
4.2.3 Approval of weld repair (Section 8),
SI values in parentheses are given for information only.
4.2.4 Certification (Specification B 824),
2. Referenced Documents 4.2.5 Foundry test report (Specification B 824),
4.2.6 Witness inspection (Specification B 824),
2.1 The following documents in the current issue of the
4.2.7 Product marking (Specification B 824), and
BookofStandardsformapartofthisspecificationtotheextent
4.2.8 Castings for seawater service (Section 5.2).
referenced herein:
2.2 ASTM Standards:
5. Materials and Manufacture
B 208 Practice for Preparing Tension Test Specimens for
5.1 Castings in Copper Alloy UNS Nos. C95300, C95400,
Copper-Base Alloys for Sand, Permanent Mold, Centrifu-
2
C95410, and C95500 may be supplied in the heat treated
gal, and Continuous Castings
condition to obtain the higher mechanical properties shown in
B 824 Specification for General Requirements for Copper
2
Table 2. Suggested heat treatments for these alloys and Copper
Alloy Castings
2
Alloy UNS No. C95520 are given in Table 3. Actual practice
B 846 Terminology for Copper and Copper Alloys
may vary by manufacturer.
3. Terminology
5.2 For better corrosion resistance in seawater applications,
castings in Copper Alloy UNS No. C95800 shall be given a
3.1 Definitions of terms relating to copper alloys can be
temper anneal heat treatment at 1250 6 50°F (675 6 10°C) for
found in Terminology B 846.
6 h minimum. Cooling shall be by the fastest means possible
4. Ordering Information
that will not cause distortion or cracking which renders the
castings unusable for the intended application.
4.1 Orders for centrifugal castings under this specification
5.3 Castings in Copper Alloy UNS No. C95900 are nor-
should include the following information:
mally supplied annealed between 1100°F (595°C) and 1300°F
4.1.1 Specification title, number, and year of issue,
(705°C) for 4 h followed by air cooling.
4.1.2 Quantity (length or number) of castings,
5.4 Castings in Copper Alloy UNS No. C95520 are used in
4.1.3 Copper Alloy UNS Number (Table 1) and temper
the heat treated condition only.
(as-cast, heat-treated, and so forth),
4.1.4 Dimensions or drawing number and condition (as-
6. Chemical Composition
cast, machined, and so forth),
6.1 The centrifugal castings shall conform to the chemical
4.1.5 ASME Boiler and Pressure Vessel Code requirements
requirement shown in Table 4 for the Copper Alloy UNS
(Section 9),
Numbers specified in the purchase order.
4.1.6 When castings are purchased for agencies of the U.S.
6.2 These specification limits do not preclude the presence
Government,theSupplementaryRequirementsinSpecification
of other elements. Limits may be established and analysis
B 824 may be specified.
required for unnamed elements agreed upon between the
manufacturer or supplier and the purchaser. Copper or zinc
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
may be given as remainder and may be taken as the difference
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
between the sum of all elements analyzed and 100 %.When all
Castings and Ingots for Remelting.
named elements in Table 2 are analyzed, their sum shall be as
Current edition approved Apr. 10, 2003. Published June 2003. Originally
approved in 1954. Last previous edition approved in 1996 as B 271 – 96.
specified in Table 5.
2
Annual Book of ASTM Standards, Vol 02.01.
*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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B 271 – 96 (2003)
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 .
...