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ASTM F256-05(2015) PDF Download

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Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium
standard by ASTM International, 07/01/2015

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Description

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 300°C. The alloy is prone to sigma phase formation at temperatures close to 620°C, and exhibits brittle mechanical behavior after prolonged exposures at temperatures close to 475°C.

Product Details

Published:
07/01/2015
Number of Pages:
7
File Size:
1 file , 94 KB