ASTM B369-96(2003)

Standard Specification for Copper-Nickel Alloy Castings

SCOPE
1.1 This specification covers requirements for copper-nickel alloy castings whose nominal compositions are shown in Table 1. These are as follows:Copper Alloy UNS No.Previous DesignationC96200Alloy AC96400Alloy B
1.2 Castings of these alloys are used primarily for corrosion-resisting purposes in both constructional and pressure applications and 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 (4.2.6) to ensure proper welding characteristics.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.
1.5 This hazard statement applies only to Section 6, 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.

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 B369-96 - Standard Specification for Copper-Nickel Alloy Castings
• Effective Date: 10-Apr-2003
• Replaced By: ASTM B369-06 - Standard Specification for Copper-Nickel Alloy Castings
• Effective Date: 01-Oct-2006
• Referred By: ASTM F1548-01(2023) - Standard Specification for Performance of Fittings for Use with Gasketed Mechanical Couplings Used in Piping Applications
• Effective Date: 10-Apr-2003
• Referred By: ASTM B763/B763M-15(2022) - Standard Specification for Copper Alloy Sand Castings for Valve Applications
• Effective Date: 10-Apr-2003
• Referred By: ASTM B824-17 - Standard Specification for General Requirements for Copper Alloy Castings
• Effective Date: 10-Apr-2003
• Referred By: ASTM B30-23 - Standard Specification for Copper Alloys in Ingot and Other Remelt Forms
• Effective Date: 10-Apr-2003
• Referred By: ASTM F998-12(2022) - Standard Specification for Centrifugal Pump, Shipboard Use
• 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 369 – 96 (Reapproved 2003)
Standard Specification for
Copper-Nickel Alloy Castings
This standard is issued under the fixed designation B 369; 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* B 824 Specification for General Requirements for Copper
Alloy Castings
1.1 This specification covers requirements for copper-nickel
B 846 Terminology for Copper and Copper Alloys
alloy castings whose nominal compositions are shown inTable
2 E 527 Practice for Numbering Metals and Alloys (UNS)
1. These are as follows:
2.2 ASME Code:
Copper Alloy UNS No. Previous Designation
ASME Boiler and Pressure Vessel Code
C96200 Alloy A
2.3 AWS Standard:
C96400 Alloy B
AWSA5.6 Specification for Copper and Copper-AlloyArc-
Welding Electrodes
1.2 Castings of these alloys are used primarily for
corrosion-resisting purposes in both constructional and pres-
3. Terminology
sure applications and particularly in marine pumps, valves, and
3.1 Definitions of terms relating to copper alloys can be
fittings.
found in Terminology B 846.
1.3 These alloys are considered weldable, but they may be
ordered with a weld test to ensure weldability. When extensive
4. Ordering Information
welding is to be performed on the casting, weldability tests
4.1 Orders for castings under this specification should
should be specified in the ordering information (4.2.6) to
include the following information:
ensure proper welding characteristics.
4.1.1 Specification title, number, and year of issue,
1.4 The values stated in inch-pound units are to be regarded
4.1.2 Quantity of castings,
as the standard. The values given in parentheses are provided
4.1.3 Copper Alloy UNS Number (Table 2),
for information purposes only.
4.1.4 Pattern or drawing number and condition (as-cast,
1.5 This hazard statement applies only to Section 6, Weld-
machined, and so forth),
ability Test, of this specification. This standard does not
4.1.5 ASME Boiler and PressureVessel Code Requirements
purport to address all of the safety concerns, if any, associated
(Section 11),
with its use. It is the responsibility of the user of this standard
4.1.6 When material is purchased for agencies of the U.S.
to establish appropriate safety and health practices and
Government, the Supplementary Requirements of this specifi-
determine the applicability of regulatory limitations prior to
cation may be specified.
use.
4.2 The following are optional and should be specified in
2. Referenced Documents the purchase order when required:
4.2.1 Pressure test or soundness requirements (Specification
2.1 ASTM Standards:
B 824),
B 208 Practice for Preparing Tension Test Specimens for
4.2.2 Witness inspection (Specification B 824),
CopperAlloys for Sand, Permanent Mold, Centrifugal and
4.2.3 Certification (Specification B 824),
Continuous Castings
4.2.4 Foundry test report (Specification B 824),
4.2.5 Product marking (Specification B 824),
4.2.6 Weldability test (1.3 and Section 6), and
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.2.7 Approval of weld procedure and records of repairs
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
(Section 10).
Castings and Ingots for Remelting.
Current edition approved Apr. 10, 2003. Published June 2003. Originally
approved in 1961. Last previous edition approved in 1996 as B 369 – 96.
2 4
The UNS system for copper and copper alloys (see Practice E 527) is a simple Annual Book of ASTM Standards, Vol 01.01.
expansion of the former standard designation system accomplished by the addition Available from American Society of Mechanical Engineers (ASME), ASME
of a prefix “C” and a suffix “00”. The suffix can be used to accommodate International Headquarters, Three Park Ave., New York, NY 10016-5990.
composition variations of the base alloy. Available from The American Welding Society (AWS), 550 NW LeJeune Rd.,
Annual Book of ASTM Standards, Vol 02.01. Miami, FL 33126.
*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.
B 369 – 96 (2003)
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
TABLE 2 Chemical Requirements TABLE 4 Metric Conversion Values for Figs. 1 and 2
Copper Alloy UNS No. Copper Alloy UNS No. in. mm in. mm
C96200 C96400
1 3
⁄8 3.18 1 ⁄4 44.4
3 3
Min, % Max, % Min, % Max, % ⁄8 9.52 2 ⁄4 69.8
⁄4 19.0 3 76.2
Copper balance balance
1 25.4 3 ⁄2 88.9
Lead . 0.01 . 0.01
1 ⁄8 28.6 6 152
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
Niobium . 1.0 0.50 1.5
Phosphorus . 0.02 . 0.02
Sulfur . 0.02 . 0.02
Carbon . 0.10 . 0.15
5. Chemical Composition
5.1 Thecastingsshallconformtothechemicalrequirements
shown in Table 2 for the copper alloy UNS numbers specified
in the purchase order.
5.2 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
NOTE 1—For metric equivalents see Table 4.
manufacturer or supplier and the purchaser. Copper may be
FIG. 1 Cast Block for Weldability Test
given as remainder and may be taken as the difference between
the sum of all elements analyzed and 100 %. When all the
nickel (70-30) coated electrodes conforming to classification
elements in the table are analyzed, their sum shall be 99.5 %
AWS ECuNi of AWS Specification A5.6. The interpass tem-
minimum.
perature need not be controlled, unless it is to be controlled in
fabrication.
6. Mechanical Properties
7.4 One ⁄8 -in. (9.52-mm) minimum thick bend coupon (see
6.1 Mechanical properties shall be determined from sepa-
Fig. 2), shall be removed longitudinally from the center of the
rately cast test bar castings, and shall meet the requirements
welded block by machining, sawing, abrasive cutting, or other
shown in Table 3.
suitable means. Cut surfaces and edges should be sanded
smooth if necessary.The side bend specimen then shall be bent
7. Weldability Test
180° in a guided bend jig around a mandrel ⁄2 in. (38.1 mm)
7.1 When specified in the purchase order at least one test
in diameter with the weld located at the center of the bend.
castasshowninFig.1shallbepreparedforeachlotofwelding
7.5 Cracks or other open defects exceeding ⁄8 in. measured
grade castings (4.2.6).
in any direction in the fusion zone or heat-affected zone on the
7.2 The block shall be molded, gated, and risered in a
manner to produce a sound casting without defects that might
interfere with welding or the interpretation of the results of the
test.
7.3 The groove in the test block shall be completely filled
with weld deposit metal, using the manual metallic-arc process
1 5
with ⁄8 -in. (12.7-mm) or ⁄32 -in. (3.97-mm) diameter copper-
TABLE 3 Mechanical Requirements
Copper Alloy UNS No. Copper Alloy UNS No.
C96200 C96400
A
Tensile strength, min, ksi (MPa) 45 (310) 60 (415)
B A
Yield strength, min, ksi (MPa) 25 (170) 32 (220)
Elongation in 2 in. (50.8 mm), % 20 20
A
ksi = 1000 psi.
B
NOTE 1—For metric equivalents see Table 4.
Yieldstrengthshallbedeterminedasthestressproducinganelongationunder
load of 0.5 %, that is 0.01 in. (0.254 mm) in a gage length of 2 in. (50.8 mm). FIG. 2 Weldability Test Block
B 369 – 96 (2003)
convexsurfaceofthespecimenafterbendingshallbecausefor 9.1.9 Significance of Numerical Limits (Section 13),
rejection. Cracks originating at weld-bead undercuts,
...