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ASTM B49-09
Standard Specification for Copper Rod Drawing Stock for Electrical Purposes
7 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
29.050 Superconductivity and conducting materials / Проводниковые материалы
Сборник (ASTM):
02.01 Copper and Copper Alloys / Медь и сплавы из меди
Тематика:
Copper
Описание
Реферат

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. The rod shall be fabricated from copper of such quality and purity. Copper of special qualities, forms, or types, as agreed upon between the manufacturer and the purchaser and that will conform to the requirements prescribed in this specification may also be used. The specimen shall have the following chemical composition: tellurium, selenium, bismuth, antimony, arsenic, tin, lead, iron, nickel, sulfur, silver, oxygen, cadmium, phosphorus, zinc, and manganese. Embrittlement test shall be performed on the specimen to reflect propensity towards hydrogen embrittlement and shall be performed only on oxygen-free copper. The rod shall be free of defects, but blemishes of a nature that do not interfere with the intended application are acceptable.

Область применения

1.1 This specification covers the requirements for rod drawing stock in diameters from ¼ to 13/8 in. (6.4 to 35 mm) produced from electrolytic tough-pitch or oxygen-free coppers and are suitable for further fabrication into electrical conductors.

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.

1.3 The following safety hazards caveat pertains only to Section 13. This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.

Ключевые слова:
copper redraw rod; electrical conductors; oxygen-free copper; tough-pitch copper

TABLE 3 Equivalent Resistivity ValuesA

Conductivity at 68°F (20°C), % IACS100.00101.00
Ω · lb/mile2875.20 866.53
Ω · g/m2 0.153 28 0.151 76
Ω · c mil/ft 10.371 10.268
Ω · mm2/m 0.017 241 0 0.017 070
μΩ · in. 0.678 79 0.672 07
μΩ · cm 1.7241 1.7070

A The equivalent resistivity values for 100 % IACS (soft copper) were each computed from the fundamental IEC value (1/58 Ω · mm2/m) using conversion factors each accurate to at least seven significant figures.