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ASTM B369-09

Current Revision

Standard Specification for Copper-Nickel Alloy Castings

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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
C96200Alloy A
C96400Alloy 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 UnitsThe 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.

TABLE 1 Nominal Compositions

Copper Alloy UNS No.Composition, %
CopperNickel IronSiliconManganeseNiobium
C96200
C96400
87.5
67.0
10.0
30.0
1.5
0.7
0.1
0.5
0.9
0.8
...
1.0

SDO ASTM: ASTM International
Document Number B369
Publication Date April 1, 2009
Language en - English
Page Count 5
Revision Level 09
Supercedes
Committee B05.05
Publish Date Document Id Type View
April 1, 2009 B0369-09 Revision
Oct. 1, 2006 B0369-06 Revision
Sept. 10, 1996 B0369-96 Revision
April 1, 2016 B0369-09R16 Reaffirmation
April 10, 2003 B0369-96R03 Reaffirmation