Standard Specification for Copper-Nickel Alloy Castings

ABSTRACT
This specification establishes the requirements for threadless, seamless, and deoxidized copper pipes in straight lengths, in all nominal or standard pipe sizes, for piping systems that are assembled with brazed-joint pipe fittings. The pipe shall be produced from coppers with either UNS No. C10300 or C12200. The materials for manufacture shall be cast billets, bars, or tubes of such purity and soundness as to be suitable for processing by hot extrusion or piercing, and subsequent cold working to produce a uniform wrought structure in the finished product. Products shall be produced in the H58 (drawn general purpose) temper. Products shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (outer and inner diameters, wall thickness, cross-sectional area, theoretical weight, mass, length, and roundness or squareness), mechanical (tensile strength and Rockwell hardness), and chemical composition requirements. Products shall also meet performance requirements under microscopical examination, electromagnetic (eddy-current) test, hydrostatic test, and pneumatic test.
SCOPE
1.1 This specification establishes the requirements for copper-nickel alloy castings with nominal compositions shown in Table 1. These are as follows:2    
Copper Alloy UNS No.2  
Previous Designation  
C96200  
Alloy A  
C96400  
Alloy B  
1.2 Castings of these alloys are used primarily for corrosion-resistance applications such as in construction and for pressure vessels, particularly in marine pumps, valves, and fittings.  
1.3 These alloys are considered weldable, but they may be ordered with a weld test to ensure weldability. When extensive welding is to be performed on the casting, weldability tests should be specified in the ordering information (5.2.6) to ensure proper welding characteristics.  
1.4 Units—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.  
1.5 The following hazard statement applies only to Section 8, Weldability Test, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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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:B369 −09 (Reapproved 2016)
Standard Specification for
Copper-Nickel Alloy Castings
This standard is issued under the fixed designation B369; 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* 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification establishes the requirements for
B208 Practice for Preparing Tension Test Specimens for
copper-nickel alloy castings with nominal compositions shown
Copper Alloy Sand, Permanent Mold, Centrifugal, and
in Table 1. These are as follows:
2 Continuous Castings
Copper Alloy UNS No. Previous Designation
B824 Specification for General Requirements for Copper
C96200 Alloy A
Alloy Castings
C96400 Alloy B
B846 Terminology for Copper and Copper Alloys
1.2 Castings of these alloys are used primarily for
E527 Practice for Numbering Metals and Alloys in the
corrosion-resistance applications such as in construction and
Unified Numbering System (UNS)
for pressure vessels, particularly in marine pumps, valves, and
2.2 ASME Code:
fittings.
ASME Boiler and Pressure Vessel Code
1.3 These alloys are considered weldable, but they may be 2.3 AWS Standard:
AWS A5.6 Specification for Copper and Copper-Alloy Arc-
ordered with a weld test to ensure weldability. When extensive
welding is to be performed on the casting, weldability tests Welding Electrodes
should be specified in the ordering information (5.2.6)to
3. General Requirements
ensure proper welding characteristics.
3.1 The following sections of Specification B824 form a
1.4 Units—The values stated in inch-pound units are to be
part of this specification. In the event of a conflict between this
regarded as standard. The values given in parentheses are
specification and Specification B824, the requirements of this
mathematical conversions to SI units that are provided for
specification shall take precedence.
information only and are not considered standard.
3.1.1 Terminology (Section 3),
1.5 The following hazard statement applies only to Section
3.1.2 Other Requirements (Section 7),
8,WeldabilityTest,ofthisspecification.Thisstandarddoesnot
3.1.3 Dimensions, Mass, and Permissible Variations (Sec-
purport to address all of the safety concerns, if any, associated
tion 8),
with its use. It is the responsibility of the user of this standard
3.1.4 Workmanship, Finish, and Appearance (Section 9),
to establish appropriate safety and health practices and
3.1.5 Sampling (Section 10),
determine the applicability of regulatory limitations prior to
3.1.6 Number of Tests and Retests (Section 11),
use.
3.1.7 Specimen Preparation (Section 12),
3.1.8 Test Methods (Section 13),
3.1.9 Significance of Numerical Limits (Section 14),
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Castings and Ingots for Remelting. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved April 1, 2016. Published May 2016. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1961. Last previous edition approved in 2009 as B369 – 09. DOI: the ASTM website.
10.1520/B0369-09R16. Available from American Society of Mechanical Engineers (ASME), ASME
The UNS system for copper and copper alloys (see Practice E527) is a simple International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
expansion of the former standard designation system accomplished by the addition www.asme.org.
of a prefix “C” and a suffix “00”. The suffix can be used to accommodate Available from American Welding Society (AWS), 8669 NW 36 St., #130,
composition variations of the base alloy.
Miami, FL 33166-6672, http://www.aws.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
B369−09 (2016)
TABLE 1 Nominal Compositions
Composition, %
Copper Alloy UNS No.
Copper Nickel Iron Silicon Manganese Niobium
C96200 87.5 10.0 1.5 0.1 0.9 .
C96400 67.0 30.0 0.7 0.5 0.8 1.0
3.1.10 Inspection (Section 15), 6. Chemical Composition
3.1.11 Rejection and Rehearing (Section 16),
6.1 Thecastingsshallconformtothechemicalrequirements
3.1.12 Certification (Section 17),
shown in Table 2 for the copper alloy UNS numbers specified
3.1.13 Test Report (Section 18),
in the purchase order.
3.1.14 Product Marking (Section 19), and
6.2 These specification limits do not preclude the presence
3.1.15 Packaging and Package Marking (Section 20).
of other elements. Limits may be established and analysis
required for unnamed elements agreed upon between the
4. Terminology
manufacturer or supplier and the purchaser. Copper may be
4.1 Fordefinitionsoftermsrelatingtocopperalloys,referto
given as remainder and may be taken as the difference between
Terminology B846.
the sum of all elements analyzed and 100 %. When all the
elements in the table are analyzed, their sum shall be 99.5 %
5. Ordering Information
minimum.
5.1 Orders for castings under this specification should
include the following information: 7. Mechanical Properties
5.1.1 Specification title, number, and year of issue;
7.1 Mechanical properties shall be determined from sepa-
5.1.2 Quantity of castings;
rately cast test bar castings, and shall meet the requirements
5.1.3 Copper Alloy UNS Number (Table 2);
shown in Table 3.
5.1.4 Pattern or drawing number and condition (as-cast,
machined, and so forth);
8. Weldability Test
5.1.5 ASME Boiler and PressureVessel Code Requirements
8.1 When specified in the purchase order at least one test
(Section 12); and
castasshowninFig.1shallbepreparedforeachlotofwelding
5.1.6 When material is purchased for agencies of the U.S.
grade castings (5.2.6).
Government, the Supplementary Requirements of this specifi-
8.2 The block shall be molded, gated, and risered in such a
cation may be specified.
manner to produce a sound casting without defects that might
5.2 The following are optional and should be specified in
interfere with welding or the interpretation of the results of the
the purchase order when required:
test.
5.2.1 Pressure test or soundness requirements (Specification
8.3 The groove in the test block shall be completely filled
B824);
with weld deposit metal, using the manual metallic-arc process
5.2.2 Witness inspection (Specification B824);
1 5
with ⁄8-in. (12.7-mm) or ⁄32-in. (3.97-mm) diameter copper-
5.2.3 Certification (Specification B824);
nickel (70-30) coated electrodes conforming to classification
5.2.4 Foundry test report (Specification B824);
AWS ECuNi of AWS Specification A5.6. The interpass tem-
5.2.5 Product marking (Specification B824);
perature need not be controlled, unless it is to be controlled in
5.2.6 Weldability test (1.3, Section 8, and Table 2); and
fabrication.
5.2.7 Approval of weld procedure and records of repairs
(Section 9). 3
8.4 One ⁄8-in. (9.52-mm) minimum thick bend coupon (see
Fig. 2), shall be removed longitudinally from the center of the
welded block by machining, sawing, abrasive cutting, or other
TABLE 2 Chemical Requirements
suitable means. Cut surfaces and edges should be sanded
Copper Alloy UNS No. Copper Alloy UNS No.
smooth if necessary.The side bend specimen then shall be bent
C96200 C96400
180° in a guided bend jig around a mandrel 1 ⁄2 in. (38.1 mm)
Min, % Max, % Min, % Max, %
in diameter with the weld located at the center of the bend.
Copper balance balance
Lead . 0.01 . 0.01
Iron 1.0 1.8 0.25 1.5
TABLE 3 Mechanical Requirements
Nickel, incl cobalt 9.0 11.0 28.0 32.0
Copper Alloy Copper Alloy
Manganese . 1.5 . 1.5
UNS No. C96200 UNS No. C96400
Silicon . 0.50 . 0.50
A A
Niobium . 1.0 0.50 1.5 Tensile strength, min, ksi (MPa) 45 (310) 60 (415)
B A
Phosphorus . 0.02 . 0.02 Yield strength, min, ksi (MPa) 25 (170) 32 (220)
Sulfur . 0.02 . 0.02 Elongation in 2 in. (50.8 mm), % 20 20
Carbon . 0.10 . 0.15
A
ksi = 1000 psi.
A B
Whenproductorcastingisintendedforsubsequentweldingapplications,andso Yield strength shall be determ
...


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: B369 − 09 B369 − 09 (Reapproved 2016)
Standard Specification for
Copper-Nickel Alloy Castings
This standard is issued under the fixed designation B369; 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 the requirements for copper-nickel alloy castings with nominal compositions shown in Table
1. These are as follows:
Copper Alloy UNS No. Previous Designation
C96200 Alloy A
C96400 Alloy B
1.2 Castings of these alloys are used primarily for corrosion-resistance applications such as in construction and for pressure
vessels, particularly in marine pumps, valves, and fittings.
1.3 These alloys are considered weldable, but they may be ordered with a weld test to ensure weldability. When extensive
welding is to be performed on the casting, weldability tests should be specified in the ordering information (5.2.6) to ensure proper
welding characteristics.
1.4 Units—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.
1.5 The following hazard statement applies only to Section 8, Weldability Test, of this specification. This standard does not
purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to
establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 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
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
2.2 ASME Code:
ASME Boiler and Pressure Vessel Code
2.3 AWS Standard:
AWS A5.6 Specification for Copper and Copper-Alloy Arc-Welding Electrodes
3. General Requirements
3.1 The following sections of Specification B824 form a part of this specification. In the event of a conflict between this
specification and Specification B824, the requirements of this specification shall take precedence.
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, 2009April 1, 2016. Published May 2009May 2016. Originally approved in 1961. Last previous edition approved in 20062009 as
B369 – 06.B369 – 09. DOI: 10.1520/B0369-09.10.1520/B0369-09R16.
The UNS system for copper and copper alloys (see Practice E527) is a simple 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 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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, ThreeTwo Park Ave., New York, NY 10016-5990,
http://www.asme.org.
Available from American Welding Society (AWS), 550 NW LeJeune Rd., 8669 NW 36 St., #130, Miami, FL 33126,33166-6672, http://www.aws.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
B369 − 09 (2016)
TABLE 1 Nominal Compositions
Composition, %
Copper Alloy UNS No.
Copper Nickel Iron Silicon Manganese Niobium
C96200 87.5 10.0 1.5 0.1 0.9 .
C96400 67.0 30.0 0.7 0.5 0.8 1.0
3.1.1 Terminology (Section 3),
3.1.2 Other Requirements (Section 7),
3.1.3 Dimensions, Mass, and Permissible Variations (Section 8),
3.1.4 Workmanship, Finish, and Appearance (Section 9),
3.1.5 Sampling (Section 10),
3.1.6 Number of Tests and Retests (Section 11),
3.1.7 Specimen Preparation (Section 12),
3.1.8 Test Methods (Section 13),
3.1.9 Significance of Numerical Limits (Section 14),
3.1.10 Inspection (Section 15),
3.1.11 Rejection and Rehearing (Section 16),
3.1.12 Certification (Section 17),
3.1.13 Test Report (Section 18),
3.1.14 Product Marking (Section 19), and
3.1.15 Packaging and Package Marking (Section 20).
4. Terminology
4.1 For definitions of terms relating to copper alloys, refer to Terminology B846.
5. Ordering Information
5.1 Orders for castings under this specification should include the following information:
5.1.1 Specification title, number, and year of issue, issue;
5.1.2 Quantity of castings,castings;
5.1.3 Copper Alloy UNS Number (Table 2), );
5.1.4 Pattern or drawing number and condition (as-cast, machined, and so forth),forth);
5.1.5 ASME Boiler and Pressure Vessel Code Requirements (Section 12),); and
5.1.6 When material is purchased for agencies of the U.S. Government, the Supplementary Requirements of this specification
may be specified.
5.2 The following are optional and should be specified in the purchase order when required:
5.2.1 Pressure test or soundness requirements (Specification B824),);
5.2.2 Witness inspection (Specification B824),);
5.2.3 Certification (Specification B824),);
5.2.4 Foundry test report (Specification B824),);
5.2.5 Product marking (Specification B824),);
5.2.6 Weldability test (1.3, Section 8, and Table 2),); and
5.2.7 Approval of weld procedure and records of repairs (Section 9).
TABLE 2 Chemical Requirements
Copper Alloy UNS No. Copper Alloy UNS No.
C96200 C96400
Min, % Max, % Min, % Max, %
Copper balance balance
Lead . 0.01 . 0.01
Iron 1.0 1.8 0.25 1.5
Nickel, incl cobalt 9.0 11.0 28.0 32.0
Manganese . 1.5 . 1.5
Silicon . 0.50 . 0.50
A
Niobium . 1.0 0.50 1.5
Phosphorus . 0.02 . 0.02
Sulfur . 0.02 . 0.02
Carbon . 0.10 . 0.15
A
When product or casting is intended for subsequent welding applications, and so
specified by the purchaser, the niobium content shall be 0.40 % max.
B369 − 09 (2016)
6. Chemical Composition
6.1 The castings shall conform to the chemical requirements shown in Table 2 for the copper alloy UNS numbers specified in
the purchase order.
6.2 These specification limits do not preclude the presence of other elements. Limits may be established and analysis required
for unnamed elements agreed upon between the manufacturer or supplier and the purchaser. Copper may be given as remainder
and may be taken as the difference between the sum of all elements analyzed and 100 %. When all the elements in the table are
analyzed, their sum shall be 99.5 % minimum.
7. Mechanical Properties
7.1 Mechanical properties shall be determined from separately cast test bar castings, and shall meet the requirements shown in
Table 3.
8. Weldability Test
8.1 When specified in the purchase order at least one test cast as shown in Fig. 1 shall be prepared for each lot of welding grade
castings (5.2.6).
8.2 The block shall be molded, gated, and risered in such a manner to produce a sound casting without defects that might
interfere with welding or the interpretation of the results of the test.
8.3 The groove in the test block shall be completely filled with weld deposit metal, using the manual metallic-arc process with
1 5
⁄8-in. (12.7-mm) or ⁄32-in. (3.97-mm) diameter copper-nickel (70-30) coated electrodes conforming to classification AWS ECuNi
of AWS Specification A5.6. The interpass temperature need not be controlled, unless it is to be controlled in fabrication.
8.4 One ⁄8-in. (9.52-mm) minimum thick bend coupon (see Fig. 2), shall be removed longitudinally from the center of the
welded block by machining, sawing, abrasive cutting, or other suitable means. Cut surfaces and edges should be sanded smooth
if necessary. The side bend specimen then shall be bent 180° in a guided bend jig around a mandrel 1 ⁄2 in. (38.1 mm) in diameter
with the weld located at the center of the bend.
8.5 Cracks or other open defects exceeding ⁄8 in. (3.2 mm) measured
...

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