ASTM F594-22

Standard Specification for Stainless Steel Nuts

ABSTRACT
This specification covers the requirements for stainless steel nuts in specified size, inclusive, in nominal diameter in a number of alloys in common use and intended for service applications requiring general corrosion resistance. Seven groups of stainless steel alloys are covered, including ten austenitic, two ferritic, four martensitic, and one precipitation hardening: Group 1; Group 2; Group 3; Group 4; Group 5; Group 6; and Group 7. The finished fasteners shall meet the applicable mechanical properties. Chemical tests; mechanical tests; and corrosion resistance shall be performed to conform with the specified requirements.
SIGNIFICANCE AND USE
15.1 For the purposes of determining compliance with the specified limits for properties listed in this specification, an observed value or calculated value shall be rounded in accordance with Practice E29.
SCOPE
1.1 This specification covers the requirements for stainless steel nuts 0.25 to 1.50 in., inclusive, in nominal diameter in a number of alloys in common use and intended for service applications requiring general corrosion resistance.  
1.2 Seven groups of stainless steel alloys are covered, including ten austenitic, two ferritic, four martensitic, and one precipitation hardening.    
Group  
AlloysA  
ConditionB    
1  
304, 305, 304L
384, 18–9LW, 302HQC  
(CW)  
cold workedD    
2  
316, 316L  
(CW)  
cold workedD  
3  
321, 347  
(CW)  
cold workedD  
4  
430E  
(CW)  
cold workedD  
5  
410F  
(H)  
hardened and tempered    
6  
431  
(H)  
hardened and tempered  
7  
630  
(AH)  
aged hardened  
1.3 Supplementary requirements of an optional nature are provided, applicable only when agreed upon by the manufacturer and the purchaser at the time of the inquiry and order.  
1.4 Suitable bolts, hex cap screws, and studs for use with nuts included in this specification are covered by Specification F593. Unless otherwise specified, all bolts, hex cap screws, and studs used with these nuts shall conform to the requirements of Specification F593 and shall be of the same alloy group.  
1.5 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.  
1.6 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.  
1.7 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-Oct-2022
• ICS: 21.060.20 - Nuts
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.04 - Nonferrous Fasteners

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:F594 −22
Standard Specification for
1
Stainless Steel Nuts
ThisstandardisissuedunderthefixeddesignationF594;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This specification covers the requirements for stainless
responsibility of the user of this standard to establish appro-
steel nuts 0.25 to 1.50 in., inclusive, in nominal diameter in a
priate safety, health, and environmental practices and deter-
number of alloys in common use and intended for service
mine the applicability of regulatory limitations prior to use.
applications requiring general corrosion resistance.
1.7 This international standard was developed in accor-
1.2 Seven groups of stainless steel alloys are covered,
dance with internationally recognized principles on standard-
including ten austenitic, two ferritic, four martensitic, and one
ization established in the Decision on Principles for the
precipitation hardening.
Development of International Standards, Guides and Recom-
A B
Group Alloys Condition
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
D
1 304, 305, 304L (CW) cold worked
C
384, 18–9LW, 302HQ
D
2. Referenced Documents
2 316, 316L (CW) cold worked
D
3 321, 347 (CW) cold worked
2
E D 2.1 ASTM Standards:
4 430 (CW) cold worked
F
5 410 (H) hardened and tempered A262Practices for Detecting Susceptibility to Intergranular
6 431 (H) hardened and tempered
Attack in Austenitic Stainless Steels
7 630 (AH) aged hardened
A342/A342MTest Methods for Permeability of Weakly
A Magnetic Materials
Unless otherwise specified on the inquiry and order, the choice of an alloy from
within a group shall be at the discretion of the fastener manufacturer (see 6.1).
A380Practice for Cleaning, Descaling, and Passivation of
B
See 4.2 for options.
Stainless Steel Parts, Equipment, and Systems
C
When approved by the purchaser, alloys 303, 303Se, or XM1 may be furnished.
D
A493Specification for Stainless Steel Wire and Wire Rods
Sizes 0.75 in. and larger may be hot worked and solution annealed.
E
When approved by the purchaser, alloy 430F may be furnished.
for Cold Heading and Cold Forging
F
When approved by the purchaser, alloy 416 or 416Se may be furnished.
A555/A555MSpecification for General Requirements for
1.3 Supplementary requirements of an optional nature are
Stainless Steel Wire and Wire Rods
provided, applicable only when agreed upon by the manufac-
A564/A564M Specification for Hot-Rolled and Cold-
turer and the purchaser at the time of the inquiry and order.
Finished Age-Hardening Stainless Steel Bars and Shapes
A582/A582MSpecification for Free-Machining Stainless
1.4 Suitable bolts, hex cap screws, and studs for use with
Steel Bars
nuts included in this specification are covered by Specification
A751Test Methods and Practices for Chemical Analysis of
F593.Unlessotherwisespecified,allbolts,hexcapscrews,and
Steel Products
studsusedwiththesenutsshallconformtotherequirementsof
D3951Practice for Commercial Packaging
Specification F593 and shall be of the same alloy group.
E29Practice for Using Significant Digits in Test Data to
1.5 The values stated in inch-pound units are to be regarded
Determine Conformance with Specifications
as standard. The values given in parentheses are mathematical
F593 Specification for Stainless Steel Bolts, Hex Cap
conversions to SI units that are provided for information only
Screws, and Studs
and are not considered standard.
F606/F606MTest Methods for Determining the Mechanical
Properties of Externally and Internally Threaded
Fasteners, Washers, Direct Tension Indicators, and Rivets
1
This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous
2
Fasteners. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2022. Published January 2023. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approvedin1978.Lastpreviouseditionapprovedin2020asF594–09(2020).DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F0594-22. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International
...

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: F594 − 09 (Reapproved 2020) F594 − 22
Standard Specification for
1
Stainless Steel Nuts
This standard is issued under the fixed designation F594; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers the requirements for stainless steel nuts 0.25 to 1.50 in., inclusive, in nominal diameter in a number
of alloys in common use and intended for service applications requiring general corrosion resistance.
1.2 Seven groups of stainless steel alloys are covered, including ten austenitic, two ferritic, four martensitic, and one precipitation
hardening.
A B
Group Alloys Condition
D
1 304, 305, 304L (CW) cold worked
C
384, 18–9LW, 302HQ
D
2 316, 316L (CW) cold worked
D
3 321, 347 (CW) cold worked
E D
4 430 (CW) cold worked
F
5 410 (H) hardened and tempered
6 431 (H) hardened and tempered
7 630 (AH) aged hardened
A
Unless otherwise specified on the inquiry and order, the choice of an alloy from within a group shall be at the discretion of the fastener manufacturer (see 6.1).
B
See 4.2 for options.
C
When approved by the purchaser, alloys 303, 303Se, or XM1 may be furnished.
D
Sizes 0.75 in. and larger may be hot worked and solution annealed.
E
When approved by the purchaser, alloy 430F may be furnished.
F
When approved by the purchaser, alloy 416 or 416Se may be furnished.
1.3 Supplementary requirements of an optional nature are provided, applicable only when agreed upon by the manufacturer and
the purchaser at the time of the inquiry and order.
1.4 Suitable bolts, hex cap screws, and studs for use with nuts included in this specification are covered by Specification F593.
Unless otherwise specified, all bolts, hex cap screws, and studs used with these nuts shall conform to the requirements of
Specification F593 and shall be of the same alloy group.
1.5 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
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous Fasteners.
Current edition approved April 1, 2020Nov. 1, 2022. Published April 2020January 2023. Originally approved in 1978. Last previous edition approved in 20152020 as
F594 – 09(2015).(2020). DOI: 10.1520/F0594-09R20.10.1520/F0594-22.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F594 − 22
1.6 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.
1.7 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:
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A342/A342M Test Methods for Permeability of Weakly Magnetic Materials
A380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
A493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A555/A555M Specification for General Requirements for Stainless Steel Wire and Wire Rods
A564/A564M Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
A582/A582M Specification for Free-Machining Stainless Steel Bars
A751 Test Methods and Practices for Chemical Analysis of Steel Products
D3951 Practice for Commercial Packaging
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
F593 Specification for Stainless Steel Bolts, H
...