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 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. |
E29-22 | Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications |
E18-22 | Standard Test Methods for Rockwell Hardness of Metallic Materials |
E1060-85(1995)E01 | Practice for Interlaboratory Testing of Spectrochemical Methods of Analysis (Withdrawn 1997) |
E3-11(2017) | Standard Guide for Preparation of Metallographic Specimens |
D1971-16(2021)e1 | Standard Practices for Digestion of Water Samples for Determination of Metals by Flame Atomic Absorption, Graphite Furnace Atomic Absorption, Plasma Emission Spectroscopy, or Plasma Mass Spectrometry (Includes all amendments and changes 12/22/2021). |
E8-04 | Standard Test Methods for Tension Testing of Metallic Materials |
E92-23 | Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials |
E112-13(2021) | Standard Test Methods for Determining Average Grain Size |
E140-12B(2019)e1 | Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness (Includes all amendments and changes 5/7/2019). |
E228-22 | Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer |
E45-18a(2023) | Standard Test Methods for Determining the Inclusion Content of Steel (Includes all amendments and changes 11/6/2023). |
E1019-18 | Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Inert Gas Fusion Techniques |
E354-21e1 | Standard Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys (Includes all amendments and changes 2/23/2022). |
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