ASTM F1466-20

Standard Specification for Iron-Nickel-Cobalt Alloys for Metal-to-Ceramic Sealing Applications

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.

General Information

• Status: Published
• Publication Date: 31-Aug-2020
• ICS: 21.140 - Seals, glands
• ICS: 77.080.10 - Irons
• Technical Committee: F01 - Electronics
• Drafting Committee: F01.03 - Metallic Materials, Wire Bonding, and Flip Chip

Standards Content (Sample)

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.
Designation:F1466 −20
Standard Specification for
Iron-Nickel-Cobalt Alloys for Metal-to-Ceramic Sealing
1
Applications
This standard is issued under the fixed designation F1466; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E3Guide for Preparation of Metallographic Specimens
E8Test Methods for Tension Testing of Metallic Materials
1.1 This specification covers two iron-nickel-cobalt alloys,
[Metric] E0008_E0008M
the former, (UNS No. K94630), containing nominally 29%
E18Test Methods for Rockwell Hardness of Metallic Ma-
nickel, 17% cobalt, and 53% iron, the latter, (UNS No.
terials
K94620), nominally 27% nickel, 25% cobalt and 48% iron,
E29Practice for Using Significant Digits in Test Data to
in the forms of wire, rod, bar, strip, sheet, and tubing, intended
Determine Conformance with Specifications
primarily for brazed metal-to-ceramic seals with alumina
E45Test Methods for Determining the Inclusion Content of
ceramics,forvacuumelectronicapplications.Unlessotherwise
Steel
indicated, all articles apply to both alloys.
E92Test Methods for Vickers Hardness and Knoop Hard-
1.2 The values stated in SI units are to be regarded as
ness of Metallic Materials
standard. The values given in parentheses after SI units are
E112Test Methods for Determining Average Grain Size
provided for information only and are not considered standard.
E140Hardness Conversion Tables for Metals Relationship
1.3 The following hazard caveat pertains only to the test Among Brinell Hardness, Vickers Hardness, Rockwell
method portion, Sections 14 and 16 of this specification. This
Hardness, Superficial Hardness, Knoop Hardness, Sclero-
standarddoesnotpurporttoaddressallofthesafetyconcerns, scope Hardness, and Leeb Hardness
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
E228Test Method for Linear Thermal Expansion of Solid
of this standard to establish appropriate safety, health, and Materials With a Push-Rod Dilatometer
environmental practices and determine the applicability of
E354 Test Methods for Chemical Analysis of High-
regulatory limitations prior to use. Temperature,Electrical,Magnetic,andOtherSimilarIron,
1.4 This international standard was developed in accor-
Nickel, and Cobalt Alloys
dance with internationally recognized principles on standard-
E1019Test Methods for Determination of Carbon, Sulfur,
ization established in the Decision on Principles for the Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
Development of International Standards, Guides and Recom-
Alloys by Various Combustion and Inert Gas Fusion
mendations issued by the World Trade Organization Technical Techniques
Barriers to Trade (TBT) Committee.
E1601Practice for Conducting an Interlaboratory Study to
Evaluate the Performance of an Analytical Method
2. Referenced Documents
3. Ordering Information
2
2.1 ASTM Standards:
3.1 Ordersformaterialunderthisspecificationshallinclude
D1971Practices for Digestion of Water Samples for Deter-
the following information:
minationofMetalsbyFlameAtomicAbsorption,Graphite
3.1.1 Alloy, as indicated with UNS number,
Furnace Atomic Absorption, Plasma Emission
3.1.2 Size,
Spectroscopy, or Plasma Mass Spectrometry
3.1.3 Temper designation (Section 6),
3.1.4 Surface finish (Section 10),
1
This specification is under the jurisdiction of ASTM Committee F01 on
3.1.5 Marking and packaging (Section 19), and
Electronics and is the direct responsibility of Subcommittee F01.03 on Metallic
3.1.6 Certification, if required. Please note that certification
Materials, Wire Bonding, and Flip Chip.
should include traceability of the heat to the original manufac-
Current edition approved Sept. 1, 2020. Published September 2020. Originally
approved in 1993. Last previous edition approved in 2015 as F1466–99 (2015). turer.
DOI: 10.1520/F1466-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 4. Chemical Requirements
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1 Each alloy shall conform to the requirements as to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. chemical composition prescribed in Table 1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1466−20
TABLE 1 Chemical Requirements TABLE 3 Tensile Strength Requirements for Wire and Rod
Tensi
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1466 − 99 (Reapproved 2015) F1466 − 20
Standard Specification for
Iron-Nickel-Cobalt Alloys for Metal-to-Ceramic Sealing
1
Applications
This standard is issued under the fixed designation F1466; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. 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 inch-poundSI units are to be regarded as standard. The values given in parentheses are mathematical
conversions to after SI units that 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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1971 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
E3 Guide for Preparation of Metallographic Specimens
E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E18 Test Methods for Rockwell Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E45 Test Methods for Determining the Inclusion Content of Steel
E92 Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials
E112 Test Methods for Determining Average Grain Size
E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness,
Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness
E228 Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer
1
This specification is under the jurisdiction of ASTM Committee F01 on Electronics and is the direct responsibility of Subcommittee F01.03 on Metallic Materials, Wire
Bonding, and Flip Chip.
Current edition approved July 1, 2015Sept. 1, 2020. Published October 2015September 2020. Originally approved in 1993. Last previous edition approved in 20102015
as F1466F1466 – 99 (2015).– 99(2010). DOI: 10.1520/F1466-99R15.10.1520/F1466-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F1466 − 20
E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and
Cobalt Alloys
E1019 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
E1060E1601 Practice for Interlaboratory Testing of Spectrochemical Methods of AnalysisConducting an Interlaboratory Study
to Evaluate the Performance of an Analytical Method (Withdrawn 1997)
3. Ordering Information
3.1 Orders for material under this specification shall include the following information:
3.1.1 Alloy, as indicated with UNS number,
3.1.2 Size,
3.1.3 Temper designation (Section 6),
3.1.4 Surfa
...