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Last Updated: Jul 11, 2024
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ASTM F1466-20
Standard Specification for Iron-Nickel-Cobalt Alloys for Metal-to-Ceramic Sealing Applications (Withdrawn 2024)
Standard Specification for Iron-Nickel-Cobalt Alloys for Metal-to-Ceramic Sealing Applications (Withdrawn 2024)
F1466-20
ASTM|F1466-20|en-US
Standard Specification for Iron-Nickel-Cobalt Alloys for Metal-to-Ceramic Sealing Applications (Withdrawn 2024)
Standard
F1466 Standard Specification for Iron-Nickel-Cobalt Alloys for Metal-to-Ceramic Sealing Applications (Withdrawn 2024)>
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BOS Vol. 10.04 Committee F01
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ASTM International
Abstract
This specification covers the property requirements and corresponding test methods for two iron-nickel-cobalt alloys in the forms of wire, rod, bar, strip, sheet, and tubing, intended primarily for brazed metal-to-ceramic seals with alumina ceramics, for vacuum electronic applications. The two alloys covered here are UNS K94630 that contains nominally 29 % nickel, 17 % cobalt, and 53 % iron, and UNS K94620 that contains nominally 27 % nickel, 25 % cobalt and 48 % iron. When tested, the alloys shall comply to specified requirements for chemical composition, surface finish, temper, grain size, tensile strength, hardness, inclusion content, thermal expansion, transformation, and dimensions.
Scope
1.1 This specification covers two iron-nickel-cobalt alloys, the former, (UNS No. K94630), containing nominally 29 % nickel, 17 % cobalt, and 53 % iron, the latter, (UNS No. K94620), nominally 27 % nickel, 25 % cobalt and 48 % iron, in the forms of wire, rod, bar, strip, sheet, and tubing, intended primarily for brazed metal-to-ceramic seals with alumina ceramics, for vacuum electronic applications. Unless otherwise indicated, all articles apply to both alloys.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.3 The following hazard caveat pertains only to the test method portion, Sections 14 and 16 of this specification. 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.
1.4 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.