Standard Historical Last Updated: Aug 16, 2017 Track Document
ASTM F256-05

Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium

Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium F0256-05 ASTM|F0256-05|en-US Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium Standard new BOS Vol. 10.04 Committee F01
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Scope

1.1 This specification covers two chromium-iron alloys, the former, (UNS K91800), nominally 18 % chromium, balance iron, the latter, (UNS K92801), nominally 28 % chromium, in strip, bar, wire, and rod forms intended primarily for sealing to glass in electronic applications.

Note 1

UNS K92801 should only be considered for use at service temperatures below 300C. The alloy is prone to sigma phase formation and associated brittle mechanical behavior after prolonged exposures at temperatures close to 475C.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

The following hazard caveat pertains only to the test method portion, Sections and , 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 and health practices and determine the applicability of regulatory limitations prior to use.

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Details
Book of Standards Volume: 10.04
Developed by Subcommittee: F01.03
Pages: 8
DOI: 10.1520/F0256-05
ICS Code: 2801; 21.140