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This specification covers round wires made from UNS N02211, UNS N10001, or N03300 nickel alloy or molybdenum, with diameters within a specified range, for winding electron tube grid laterals. The wires are classified into five classes based on tensile properties. All wires should conform to the required values of tensile strength, yield strength, working range, and elongation properties. The surface of each bare wire should be bright and free from cracks, slivers, fissures, lubricants, or other detrimental defects, while all platings should be free from bubbles, flakes, blisters, porosity, and plating salts. Wires should be spooled in one continuous length and in such a manner that it can be unwound under reasonable tension without binding or becoming distorted.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. 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.
1.1 This specification covers round wire up to 0.006 in. (0.15 mm) in diameter for use as electron tube grid lateral winding wire.
1.2 Five classes of wire are covered based on their tensile properties (see and ).
1.3 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.
1.4 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.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E39 Methods for Chemical Analysis of Nickel
E107 Test Methods for Chemical Analysis of Electronic Nickel
E129 Test Method for Spectrographic Analysis of Thermionic Nickel Alloys by the Powder Techniques (Withdrawn 1999)3
F16 Test Methods for Measuring Diameter or Thickness of Wire and Ribbon for Electronic Devices and Lamps
F205 Test Method for Measuring Diameter of Fine Wire by Weighing
F288 Specification for Tungsten Wire for Electron Devices and Lamps
F289 Specification for Molybdenum Wire and Rod for Electronic Applications
ICS Number Code 29.060.10 (Wires)
UNSPSC Code 26121500(Electrical wire); 32141000(Electron Tubes)
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ASTM F290-94(2020), Standard Specification for Round Wire for Winding Electron Tube Grid Laterals, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top