ASTM有色金属标准.B49 – Designation: B 49 – 98 (Reapproved ) Standard Speci?cation for Copper Rod. Product. Oxygen-Free Copper Rod Cu-OFE-8, Cu-OFE, Cu-OFE, Cu- OFE,. Cu-OFE, Cu-OFE, Cu-OFE Standard. PN-EN , ASTM B ASTM B Standard Specification for Copper Rod for Electrical Purposes. standard by ASTM International, 04/01/ View all product details.

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ASTM B49 – 17 – Standard Specification for Copper Rod for Electrical Purposes

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.

The change in length measured after the weight is removed, and the spiral has relaxed, is considered as a measure of softness. This specification covers the requirements for rod drawing stock produced from electrolytic tough-pitch or oxygen-free coppers and is suitable for further fabrication into electrical conductors. Current edition approved May 1, Because of the uncertain correlation with performance, and the subjective aspect of interpretation, these tests should only be used as an indicator of in-house process control.

Work Item s – proposed satm of this standard. Using an indelible marking tool, a mm gage length is marked over the midlength of the copper wire.


Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

In the case of tests on astn or annealed copper rod, however, the effects of speed of testing are not pronounced. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Physical Property Requirements 7.

ASTM B49 – 10 Standard Specification for Copper Rod Drawing Stock for Electrical Purposes

Note that the load is not to be removed by either raising the platform or lowering the upper end of the spiral. The values given in parentheses are for information only.

Other equivalent annealing methods may be used. In tests of soft rod made at speeds not greater than 12 in. Samples of 4 4 For a description of a similar, yet alternative standard procedure to determine tarnish?

The rod shall be fabricated from copper of such quality and purity. The latter term means that a copper wire 1 m in length and weighing 1 g would have a resistance of 0. Copper wire is initially given a low temperature anneal under tightly controlled conditions, subsequently wound into a spiral helical con?


ASTM B49 – 17

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Awtm and Manufacture 5. Link to Active This link will always route to the current Active version of the standard.

This sample shall either be annealed or not annealed according to the following circumstances: This constitutes a second bend. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Other temperatures and times may be used by special agreement between the manufacturer and purchaser. Test Procedures—A mm-long test sample is cut from the annealed coil of wire.

D From B Grade 2 copper or equivalent. The specimen shall have the following chemical composition: The electrolyte shall be a 0.

This abstract is a brief summary of the referenced standard. G Not including oxygen. Using a thermocouple embedded in the rod to a depth equal to the radius, temperature should reach the annealing temperature within a 5-min period. The value of 0.