ASTM F1684-06(2011)

Standard Specification for Iron-Nickel and Iron-Nickel-Cobalt Alloys for Low Thermal Expansion Applications

ABSTRACT
This specification covers the requirements and corresponding test methods for two iron-nickel alloys and one iron-nickel-cobalt alloy, for low thermal expansion applications. The two iron-nickel alloys, which both contain nominally 36 % nickel and 64 % iron, are the conventional alloy designated as UNS No. K93603 and the free-machining alloy designated as UNS No. K93050. On the other hand, the iron-nickel-cobalt alloy contains nominally 32 % nickel, 5 % cobalt and 63 % iron, and is designated as UNS No. K93500. UNS No. K93603 and UNS No. K93500 shall be in the forms of wire, rod, bar, strip, sheet plate, and tubing, while UNS No. K93050 shall be for bar products only. When test, the alloys shall comply to specified requirements for chemical composition, surface finish, temper, grain size, hardness, tensile strength, thermal expansion, transformation, and dimensions.
SCOPE
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 plate, 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 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 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.

General Information

• Status: Historical
• Publication Date: 31-May-2011
• ICS: 77.100 - Ferroalloys
• ICS: 77.120.40 - Nickel, chromium and their alloys
• Technical Committee: F01 - Electronics
• Drafting Committee: F01.03 - Metallic Materials, Wire Bonding, and Flip Chip

Relations

• Replaces: ASTM F1684-06 - Standard Specification for Iron-Nickel and Iron-Nickel-Cobalt Alloys for Low Thermal Expansion Applications
• Effective Date: 01-Jun-2011
• Referred By: ASTM D8303-20 - Standard Test Method for Determining Thermal Cracking Properties of Asphalt Mixtures Through Measurement of Thermally Induced Stress and Strain
• Effective Date: 01-Jun-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F1684 −06(Reapproved 2011)
Standard Specification for
Iron-Nickel and Iron-Nickel-Cobalt Alloys for Low Thermal
1
Expansion Applications
This standard is issued under the fixed designation F1684; 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 E10Test Method for Brinell Hardness of Metallic Materials
E18Test Methods for Rockwell Hardness of Metallic Ma-
1.1 This specification covers two iron-nickel alloys and one
terials
iron-nickel-cobalt alloy, for low thermal expansion applica-
E29Practice for Using Significant Digits in Test Data to
tions. The two iron-nickel alloys, both containing nominally
Determine Conformance with Specifications
36% nickel and 64% iron, with the conventional alloy
E45Test Methods for Determining the Inclusion Content of
designated by UNS No. K93603, and the free-machining alloy
Steel
designated as UNS No. K93050. The iron-nickel-cobalt alloy,
E92TestMethodforVickersHardnessofMetallicMaterials
containingnominally32%nickel,5%cobaltand63%iron,is
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(Withdrawn 2010)
designated by UNS No. K93500.This specification defines the
E112Test Methods for Determining Average Grain Size
following product forms for UNS No. K93603 and UNS No.
E140Hardness Conversion Tables for Metals Relationship
K93500: wire, rod, bar, strip, sheet plate, and tubing. The
Among Brinell Hardness, Vickers Hardness, Rockwell
free-machining alloy, UNS No. K93050, is defined for bar
Hardness, Superficial Hardness, Knoop Hardness, and
products only. Unless otherwise indicated, all articles apply to
Scleroscope Hardness
all three alloys.
E228Test Method for Linear Thermal Expansion of Solid
1.2 The values stated in inch-pound units are to be regarded
Materials With a Push-Rod Dilatometer
as standard. The values given in parentheses are mathematical
E354 Test Methods for Chemical Analysis of High-
conversions to SI units that are provided for information only
Temperature,Electrical,Magnetic,andOtherSimilarIron,
and are not considered standard.
Nickel, and Cobalt Alloys
1.3 Thispertainsonlytothetestmethodsection,Section13. E1019Test Methods for Determination of Carbon, Sulfur,
This standard does not purport to address all of the safety
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
concerns, if any, associated with its use. It is the responsibility
Alloys by Various Combustion and Fusion Techniques
of the user of this standard to establish appropriate safety and E1601Practice for Conducting an Interlaboratory Study to
health practices and determine the applicability of regulatory
Evaluate the Performance of an Analytical Method
limitations prior to use.
3. Ordering Information
2. Referenced Documents
3.1 Ordersformaterialunderthisspecificationshallinclude
2
the following information:
2.1 ASTM Standards:
3.1.1 Alloy, as indicated with UNS number,
D1971Practices for Digestion of Water Samples for Deter-
3.1.2 Size,
minationofMetalsbyFlameAtomicAbsorption,Graphite
3.1.3 Temper designation (Section 6),
Furnace Atomic Absorption, Plasma Emission
3.1.4 Surface finish (Section 10),
Spectroscopy, or Plasma Mass Spectrometry
3.1.5 Marking and packaging (Section 18), and
E8Test Methods for Tension Testing of Metallic Materials
3.1.6 Certification, if required.
NOTE 1—Certification should include traceability of the heat to the
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This specification is under the jurisdiction of ASTM Committee F01 on
original manufacturer.
Electronicsand is the direct responsibility of Subcommittee F01.03 on Metallic
Materials.
4. Chemical Requirements
Current edition approved June 1, 2011. Published June 2011. Originally
approved in 1996. Last previous edition approved in 2006 as F1684–06. DOI: 4.1 Each alloy shall conform to the requirements as to
10.1520/F1684-06R11.
chemical composition prescribed in Table 1.
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
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
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F1684−06 (2011)
TABLE 1 Chemical Requirements TABLE 3 Tensile Strength Requirements for Wire and Rod
NOTE 1—Round observed or calculated values to the nearest unit in the NOTE 1—The tensile strength limits for Temper D apply only to
1
last right-hand place of figures used in expressing the limiting value, in material ⁄2 in.
...