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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. 2 Previous Designation C96200 Alloy A C96400 Alloy 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 (5.2.6) 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 The hazard statement applies only to Section 7, 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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)
AWS StandardAWSA5.6 Specification for Copper and Copper-Alloy Arc-Welding Electrodes Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http://www.aws.org.
UNSPSC Code 31100000(Castings and casting assemblies)