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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The manufacturer shall afford the inspector representing the purchaser all reasonable facilities to satisfy him that the material being furnished is in accordance with this speci?
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. The specimen shall have the following chemical composition: The weight shall be supported initially with a platform and loaded onto the axtm uniformly and smoothly by either of two methods, namely: An ASTM method has not been developed.
A number in parentheses indicates the year of last reapproval. Embrittlement test ast, be performed on the specimen to reflect propensity towards hydrogen astmm and shall be performed only on oxygen-free copper. The fracture shall be between gage marks and not closer than 1 in.
C, C, C, and C Physical Property Requirements 7. Make sure that each specimen undergoes the bend test in accordance with From B Grade 1 copper or equivalent.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. The impurity total for UNS C is de?
Particular care should be taken to avoid excessive heating of the copper during drawing. It is also equivalent, for example, to 1. G Not including oxygen.
ASTM B49 – 17
A superscript epsilon e indicates an editorial change since the last revision or reapproval. The rod shall be fabricated from copper of such quality and purity.
Make atsm successive bend in the opposite direction from the previous bend see Test Methods B If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. In the case of tests on soft or annealed copper rod, however, the effects of speed of testing are h49 pronounced.
This standard does not purport to address all of the safety concerns, if any, associated with its use.
ASTM B49 – 17 Standard Specification for Copper Rod for Electrical Purposes
Test Procedures—A mm-long test sample is cut from the annealed coil of wire. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk b4 infringement of such rights, are entirely their own responsibility. For a more thorough description of these tests, refer to the Journal of Testing and Evaluation.
B 49 — 98 Reapproved Standard Speci? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Supply current from a dc power supply or a coulometer. The electrolyte shall be a 0. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Hardness shall be measured along the center line of the annealed specimen using the Rockwell F scale, in accordance with Test Method E Last previous edition approved in as B 49 — 98e2. Since good temperature control is extremely important, thermocouples should be placed at strategic locations throughout the annealing device.
This sample shall either be annealed or not annealed according to the following circumstances: Cuprous oxide is reduced initially. The rod shall be free of defects, but blemishes of a nature that do not interfere with the intended application are acceptable.
ASTM B49 – 10 Standard Specification for Copper Rod Drawing Stock for Electrical Purposes
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. C, C, and C as de? A complete discussion of this subject is contained in NBS Handbook The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. This test is performed by reducing the surface oxide atsm to copper in an electrolytic cell.
Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: Originally approved in Test Method E should be referenced for the determination of silverbearing alloys permitted under this speci?
NOTE 1—The following speci? Copper of special qualities, asfm, or types, as aatm upon between the manufacturer and the purchaser and that will conform to the requirements prescribed in this specification may also be used. No edge rolling is required. Before testing, clean each rod sample of oil aastm grease using acetone or an equivalent solvent.