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ASTM F1684-99(2005)e1

Historical Reaffirmation

Standard Specification for Iron-Nickel and Iron-Nickel-Cobalt Alloys for Low Thermal Expansion Applications (Withdrawn 2024)

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1.1 This specification covers two iron-nickel alloys and one iron-nickel-cobalt alloy, for low thermal expansion applications. The two iron-nickel alloys, both containing nominally 36 % nickel and 64 % iron, with the conventional alloy designated by UNS No. K93603, and the free-machining alloy designated as UNS No. K93050. The iron-nickel-cobalt alloy, containing nominally 32 % nickel, 5 % cobalt and 63 % iron, is designated by UNS No. K93500. This specification defines the following product forms for UNS No. K93603 and UNS No. K93500: wire, rod, bar, strip, sheet, and tubing. The free-machining alloy, UNS No. K93050, is defined for bar products only. Unless otherwise indicated, all articles apply to all three alloys.

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

1.3 This pertains only to the test method section, Section 13 . 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.


SDO ASTM: ASTM International
Document Number F1684
Publication Date Jan. 1, 2005
Language en - English
Page Count 7
Revision Level 99(2005)e1
Supercedes
Committee F01.03
Publish Date Document Id Type View
March 1, 2021 F1684-06R21 Revision
June 1, 2006 F1684-06 Revision
Jan. 10, 1999 F1684-99 Revision
May 1, 2016 F1684-06R16 Reaffirmation
June 1, 2011 F1684-06R11 Reaffirmation
Jan. 1, 2005 F1684-99R05E01 Reaffirmation