ASTM F15-04(2022)

Standard Specification for Iron-Nickel-Cobalt Sealing Alloy

ABSTRACT
This specification covers an iron-nickel-cobalt alloy for use in sealing to glass in electronic applications. The alloy shall conform to the chemical composition specified and shall be manufactured in the form of wire, rod, bar, strip, sheet, and tube, with each form available in the specified temper condition. For example, tubes shall be bright annealed and supplied in the annealed temper condition. Strip and sheet shall be of temper A, B, C, D, or E or in deep-drawing temper condition, while wire and rod shall be bright annealed and supplied in temper A condition unless specified otherwise. The material shall be smooth, uniform in cross section, composition, and temper, and free of scale, corrosion, cracks, seams, scratches, slivers, and other defects. Tests for hardness, tensile strength, thermal expansion, and transformation shall be performed and shall conform to the requirements specified.
SCOPE
1.1 This specification covers an iron-nickel-cobalt alloy, UNS K94610 containing nominally 29 % nickel, 17 % cobalt, and 53 % iron, in the forms of wire, rod, bar, strip, sheet, and tubing, intended primarily for sealing to glass in electronic applications.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to 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 13 and 14 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: 30-Apr-2022
• ICS: 77.120.40 - Nickel, chromium and their alloys
• 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:F15 −04 (Reapproved 2022)
Standard Specification for
1
Iron-Nickel-Cobalt Sealing Alloy
ThisstandardisissuedunderthefixeddesignationF15;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E112Test Methods for Determining Average Grain Size
E140Hardness Conversion Tables for Metals Relationship
1.1 This specification covers an iron-nickel-cobalt alloy,
Among Brinell Hardness, Vickers Hardness, Rockwell
UNS K94610 containing nominally 29% nickel, 17% cobalt,
Hardness, Superficial Hardness, Knoop Hardness, Sclero-
and 53% iron, in the forms of wire, rod, bar, strip, sheet, and
scope Hardness, and Leeb Hardness
tubing, intended primarily for sealing to glass in electronic
E228Test Method for Linear Thermal Expansion of Solid
applications.
Materials With a Push-Rod Dilatometer
1.2 The values stated in inch-pound units are to be regarded
F14Practice for Making andTesting Reference Glass-Metal
as standard. The values given in parentheses are mathematical
Bead-Seal
conversions to SI units that are provided for information only
F140Practice for Making Reference Glass-Metal Butt Seals
and are not considered standard.
and Testing for Expansion Characteristics by Polarimetric
1.3 The following hazard caveat pertains only to the test Methods
method portion, Sections 13 and 14 of this specification. This
F144Practice for Making Reference Glass-Metal Sandwich
standard does not purport to address all of the safety concerns, Seal and Testing for Expansion Characteristics by Polari-
if any, associated with its use. It is the responsibility of the user
metric Methods
of this standard to establish appropriate safety, health, and
environmental practices and determine the applicability of
3. Ordering Information
regulatory limitations prior to use.
3.1 Ordersformaterialunderthisspecificationshallinclude
1.4 This international standard was developed in accor-
the following information:
dance with internationally recognized principles on standard-
3.1.1 Size,
ization established in the Decision on Principles for the
3.1.2 Temper (Section 6),
Development of International Standards, Guides and Recom-
3.1.3 Surface finish (Section 10),
mendations issued by the World Trade Organization Technical
3.1.4 Marking and packaging (Section 17), and
Barriers to Trade (TBT) Committee.
3.1.5 Certification if required.
2. Referenced Documents
4. Chemical Requirements
2
2.1 ASTM Standards:
4.1 The material shall conform to the requirements as to
E3Guide for Preparation of Metallographic Specimens
chemical composition prescribed in Table 1.
E8Test Methods for Tension Testing of Metallic Materials
[Metric] E0008_E0008M
5. Surface Lubricants
E18Test Methods for Rockwell Hardness of Metallic Ma-
terials
5.1 All lubricants used during cold-working operations,
E92Test Methods for Vickers Hardness and Knoop Hard-
such as drawing, rolling, or spinning, shall be capable of being
ness of Metallic Materials
removed readily by any of the common organic degreasing
solvents.
1
This specification is under the jurisdiction of ASTM Committee F01 on
6. Temper
Electronics and is the direct responsibility of Subcommittee F01.03 on Metallic
Materials, Wire Bonding, and Flip Chip.
6.1 The desired temper of the material shall be specified in
Current edition approved May 1, 2022. Published May 2022. Originally
the purchase order.
approvedin1961asF15–61T.Lastpreviouseditionapprovedin2017 as F15–04
(2017). DOI: 10.1520/F0015-04R22.
6.2 Tube—Unless otherwise agreed upon by the supplier or
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
manufacturer and the purchaser, these forms shall be given a
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
final bright anneal by the manufacturer and supplied in the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. annealed temper.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F15−04 (2022)
150×
FIG. 1 Normal Annealed Specimen Showing No Transformation
150×
FIG. 2 Partially Transformed Specimen
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F15−04 (2022)
TABLE 1 Chemical Requirements TABLE 3 Tensile Strength Requirements for Wire and Rod
Element Composition, % Temper Designation Tensile Strength, ksi (MPa)
A
Iron, nominal 53 A 85 (585) max
A
Nickel, nominal 29 B
...