ASTM B 5 : 2022
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Standard Specification for High Conductivity Tough-Pitch Copper Refinery Shapes
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English
10-17-2022
1.1This specification establishes the requirements for high conductivity, tough-pitch, copper wire bars, cakes, slabs, billets, ingots, and ingot bars.
1.2Copper under this specification corresponds to the designations “ETP” (UNS C11000) and “FRHC” (UNS C11020) as shown in Classification B224. These coppers may also be used to produce coppers corresponding to the following:
| Copper UNS No. | Classification B224 Designation |
| C11300, C11400, C11500, and C11600 | STP |
| C12000 | DLP |
| C12200 | DHP |
| C12300 | DHPS |
| C14520 | DPTE |
1.3Although this specification includes certain UNS designations as described in Practice E527, these designations are for cross reference only and are not specification requirements. Therefore, in case of conflict, this ASTM specification shall govern.
1.4Units—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.
1.4.1Exception—Electrical resistivity is expressed in SI units.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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