ASTM B5-22

Detail information

Designation: ASTM B5-22

Publication date: 01/10/2022

Pages: 5

Country: American technical standard

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Anotation

This specification establishes the requirements for high conductivity, tough-pitch, copper wire bars, cakes, slabs, billets, ingots, and ingot bars. Copper wires under this specification include UNS C113000, C11400, C11500 and C11600, C12000, C12200, C12300, and C14500. The maximum values of mass resistivity for wire bars, cakes, slabs, and billets, for electrical use and for other uses, shall conform to the specified requirements. Samples for the electrical resistivity test of electrolytic copper, electrorefined copper, electrowon copper, and fire-refined copper shall be fabricated into a rod. The external oxide shall be removed, the rod cold drawn into a wire of a specific diameter, and cut into sampling lengths. The resulting specimen shall be annealed and quickly cooled in an inert atmosphere. The mean resistivity shall be determined as the mean of the observations from the test on the wires.


Keywords:
billets, cakes, electrolytic copper, electro-refined copper, electrowin copper, fire-refined copper, high-conductivity copper, ingot bars, ingots, refinery shapes, slabs, tough-pitch copper, wire bars,, ICS Number Code 77.150.30 (Copper products)