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ASTM F289-96(2019)

Действует
Standard Specification for Molybdenum Wire and Rod for Electronic Applications — 4 стр.
Реферат

This specification deals with molybdenum wire and rod for electronic applications. The following grades of molybdenum wire and rod are covered in this specification: Grade 1commercially pure molybdenum wire suitable for leads, hooks, supports, heaters, and metal-to-glass seals; Grade 2commercially pure molybdenum wire suitable for mandrel either black or cleaned; and Grade 3commercially pure molybdenum rod suitable for leads, hooks, supports, and metal-to-glass seals. Materials shall be tested and the individual grades shall conform to specified values of chemical composition, minimum tensile strength, elongation, ductility, surface finish, dimensional tolerances, and straightness.

Область применения

1.1 This specification covers two grades of molybdenum wire less than 0.050 in. (1.27 mm) in diameter and one grade of molybdenum rod 1.00 in. (25.4 mm) or less in diameter as follows:

1.1.1 Grade 1—Commercially pure molybdenum wire suitable for leads, hooks, supports, heaters, and metal-to-glass seals.

1.1.2 Grade 2—Commercially pure molybdenum wire suitable for mandrel either black or cleaned.

1.1.3 Grade 3—Commercially pure molybdenum rod suitable for leads, hooks, supports, and metal-to-glass seals.

1.2 The term wire applies to all spooled or coiled material and 0.050 in. (1.3 mm) or less in diameter and to short cut lengths 0.020 in. (0.51 mm) or less in diameter.

1.3 The term rod applies to all material over 0.020 in. (0.51 mm) in diameter, supplied in straight lengths.

1.4 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.

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ICS
29.060.10 Wires. Including electric rods, busbars, etc. / Провода. Включая стержни, шины и т.д.
Сборник ASTM
02.04 Nonferrous Metals – Nickel, Titanium, Lead, Tin, Zinc, Zirconium, Precious, Reactive, Refractory Metals and Alloys: Materials for Thermostats, Electrical Heating and Resistance Contact, and Connectors / Цветные металлы - Никель, Кобальт, Свинец, Олово, Цинк, Кадмий, Драгоценные металлы, химически активные металлы, Тугоплавкие металлы и сплавы, Материалы для Термостатов, Электронагревательных приборов, Контактов, Соединительные устройств
Тематика
Electronics