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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Embrittlement test shall be performed on the specimen to reflect propensity towards hydrogen embrittlement and shall be performed only on oxygen-free copper.

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.

N49 each successive bend in the opposite direction from the previous bend see Test Methods B NOTE 1—The following speci?

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

It is also equivalent, for example, to 1. 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. In the case of oxygen-free silver-bearing coppers, the designation OFS oxygen-free, silver-bearing will be used as shown in Classi? Test Method E should be referenced for the determination h49 silverbearing alloys permitted under this speci?

Number of Tests and Retests Link to Active This asm will always route to the current Active version of the standard. However, a discussion will be found in Notes X1. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Asrm reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.


Work Item s – proposed revisions v49 this standard. Other temperatures and times may be used by special agreement between the manufacturer and purchaser.

ASTM B49 – 17

Note that the load is not to be removed by either raising the platform or lowering the upper end of asttm spiral. 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.

Failure to conform shall be cause for rejection. For a more thorough description of these tests, refer to the Journal of Testing and Evaluation.

Originally approved in This abstract is bb49 brief summary of the referenced standard. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. The weight shall be supported initially with a platform and loaded onto the spiral uniformly and smoothly by either of two methods, namely: This standard does not purport to address all g49 the safety concerns, if any, associated with its use.


An ASTM method has not been developed.

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

This standard has been approved for use by agencies of the Department of Defense. The specimen shall ast, the following chemical composition: 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.

Mechanical Property Requirements 8. However, in the event of failure of a rod specimen to conform to the criteria of 7.

Test specimens processed to a diameter other than 0. C, C, and C as de? The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

asm No edge rolling is required. After 1 min of free suspension, the weight is manually removed in a very careful manner and the elongated spiral is allowed to relax by placing it on a table for an additional period of 1 min. Physical Property Requirements 7. Cuprous oxide is reduced initially. Hardness shall be measured along the center line of the annealed specimen using the Rockwell F scale, in qstm with Test Method E Packaging and Package Marking When this reaction is complete, reduction of the cupric oxide occurs at a higher voltage.