Abstract
This specification covers the requirements for UNS C95300, C95400, C95410, C95500, C95800, C87500, C87800, C87850, and C89540 copper alloy permanent mold castings for general applications. UNS C95800 copper alloy used in sea water applications should be heat treated for better corrosion resistance. In general, alloys included in this specification are weldable. Mechanical properties like the tensile strength, yield strength and elongation are determined from separately cast test bar castings and should conform to the specified requirements.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification establishes requirements for copper alloy permanent mold castings for general applications. Nominal compositions of the alloys under this specification are shown in Table 1.
1.2 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.
TABLE 1 Nominal Composition
| Classification | Copper Alloy UNS No. | Nominal Composition |
| Copper | Aluminum | Iron | Manganese | Nickel (incl Cobalt) | Silicon | Lead | Zinc | Tin |
| Aluminum bronze | C95300 C95400 C95410 | 89.0 85.0 84.0 | 10.0 11.0 10.0 | 1.0 4.0 4.0 | ... ... ... | ... ... 2.0 | ... ... ... | ... ... ... | ... ... ... | ... ... ... |
| Nickel aluminum bronze | C95500 C95800 | 81.0 81.3 | 11.0 9.0 | 4.0 4.0 | ... 1.2 | 4.0 4.5 | ... ... | ... ... | ... ... | ... ... |
| Silicon brass | C87500 C87800 | 82.0 82.0 | ... ... | ... ... | ... ... | ... ... | 4.0 4.0 | ... ... | 14.0 14.0 | ... ... |
| C87850A | 76.0 | . . . | . . . | . . . | . . . | 3.0 | . . . | 20.9 | . . . |
| Lead-free yellow brassB | C89540 | 61.0 | 0.40 | 0.30 | ... | 0.5 | ... | ... | 36.0 | 0.8 |
A Phosphorus 0.12.
B Bismuth 0.9; selenium 0.03.
2. Referenced Documents (purchase separately)
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
Keywords
copper alloy castings; copper-base alloy castings; permanent mold castings; Copper alloy castings--specifications; Permanent mold castings--copper alloys;
ICS Code
ICS Number Code 77.150.30 (Copper products)
DOI: 10.1520/B0806-08A
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