ASTM B1-13(R2018) pdf free download

ASTM B1-13(R2018) pdf free download.Standard Speci fication for Hard-Drawn Copper Wire
1. Scope
1.1 This specification covers hard-drawn round copper wire for electrical purposes. 1.2 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. 1.2.1 Exception—For density, resistivity and temperature, the values stated in SI units are to be regarded as standard. 1.3 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
6. Test Methods
6.1 Tensile Strength and Elongation: 6.1.1 Obtain the tensile strength, expressed in pounds per square inch, by dividing the maximum load carried by the specimen during the tension test, by the original cross-sectional area of the specimen. Tensile strength and elongation may be determined simultaneously on the same specimen. 6.1.2 Determine the elongation of the wire as the permanent increase in length due to the breaking of the wire in tension, measured between gage marks placed originally 10 in. (250 mm) apart upon the test specimen (see Explanatory Note 5). 6.1.3 If any part of the fracture takes place outside the gage marks or in the jaws of the testing machine, or if an examina- tion of the specimen indicates a flaw, the value obtained may not be representative of the material. In such cases the test may be discarded and a new test made. 6.2 Resistivity—Determine the electrical resistivity of the material in accordance with Test Method B193 (see Explana- tory Note 6). The purchaser may accept certification that the wire was drawn from rod stock meeting the International Standard for Annealed Copper instead of resistivity tests on the finished wire. 6.3 Dimensional Measurements — Dimensional measure- ments shall be made with equipment capable of measuring to a graduation of 0.0001 in. (or 0.001 mm). Take measurements on at least three places on each unit selected for this test. If accessible, take one measurement on each end and one near the middle. The average of the three measurements shall determine compliance with the requirements. 6.4 Surface Finish—Make a surface-finish inspection with the unaided eye (normal spectacles accepted).
7. Inspection
7.1 General (see Explanatory Note 7)—Unless otherwise specified in the contract or purchaser order, the manufacturer shall be responsible for the performance of all inspection and test requirements specified. 7.1.1 All inspections and tests shall be made at the place of manufacture unless otherwise specifically agreed to between the manufacturer and the purchaser at the time of the purchase. 7.1.2 The manufacturer shall afford the inspector represent- ing the purchaser all reasonable manufacturer’s facilities to satisfy him that the material is being furnished in accordance with this specification.7.1.3 Unless otherwise agreed upon between the purchaser and the manufacturer, conformance of the wire to the various requirements listed in Section 5 shall be determined on samples taken from each lot of wire presented for acceptance. 7.1.4 The manufacturer shall, if requested prior to inspection, certify that all wire in the lot was made under such conditions that the product as a whole conforms to the requirements of this specification as determined by regularly made and recorded tests. Number of Units in Lot 1 to 30, incl 31 to 50, incl 51 to 1 00, incl 1 01 to 200, incl 201 to 300, incl 301 to 500, incl 501 to 800, incl Over 800 Number of Units in Sample, n all 30 37 40 70 1 00 1 30 1 55 Allowable Number of Defective Units, c 0 0 0 0 1 2 3 4 7.2 Definitions Applicable to Inspection: 7.2.1 lot—any amount of wire of one type and size pre- sented for acceptance at one time, such amount, however, not to exceed 100 000 lb (45 000 kg) (see Explanatory Note 8). 7.2.2 unit(s)—coil(s), reel(s), or other put-up method which makes up the lot from a production unit of one size of wire. 7.2.3 sample—a quantity of production units (coils, reels, etc.) selected at random from the lot for the purpose of determining conformance of the lot to the requirements of this specification. 7.2.4 specimen—a length of wire removed for test purposes from any individual production unit of the sample. 7.3 sample size—the number of production units in a sample (see Explanatory Note 7) shall be as follows: 7.3.1 For tension, elongation, and resistivity determinations, the sample shall consist of four production units. From each unit, one test specimen of sufficient length shall be removed for the performance of the required tests. 7.3.2 For dimensional measurements, the sample shall con- sist of a quantity of production units shown in Table 2 under the heading “First Sample.”