Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners

ABSTRACT
This specification covers the chemical and mechanical requirements of quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners. All fasteners shall be made from alloy steel conforming to the chemical composition requirements. Two levels of bolting strength are covered, designated Grades BC and BD. Selection will depend upon design and the stresses and service for which the product is to be used. Hardness, tensile strength, yield strength, elongation, and area reduction shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification2 covers the chemical and mechanical requirements of quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners 4 in. and under in diameter for application at normal atmospheric temperatures, where high strength is required and for limited application at elevated temperature (Note 1). Any alloy steel capable of meeting the mechanical and chemical properties set forth in this specification may be used.  
Note 1: For bolts, studs, or other externally threaded fasteners, to be used at elevated temperatures, refer to Specification A193/A193M.  
1.2 Two strength levels are covered, designated Grades BC and BD. Selection will depend upon design and the stresses and service for which the product is to be used.  
Note 2: Quenched and tempered alloy steel bolts for structural steel joints up through 11/2 in. in diameter are covered in Specification F3125/F3125M. For fastener diameter sizes above 1 1/2 in., Grade BC may be considered for structural steel bolting where tensile strength above 120 ksi is necessary and Grade BD may be considered for structural steel bolting where tensile strength above 150 ksi is necessary. In this event, additional requirements of Specification F3125/F3125M, such as head size, lubricant, and magnetic particle inspection, should be carefully considered.  
1.3 Nuts are covered in Specification A563. Unless otherwise specified, the grade and style of nut for each grade of fastener shall be as follows:    
Grade of Fastener and Surface Finish  
Nut Grade and
StyleA  
BC, plain (or with a coating of insufficient thick-
ness to require over-tapped nuts)  
C, heavy hex    
BC, zinc-coated (or with a coating thickness re-
quiring over-tapped nuts)  
DH, heavy hex    
BD, all finishes  
DH, heavy hex (A) Nuts of other grades and styles having specified proof load stresses (Specification A563, Table 3) greater than the specified grade and style of nut are suitable.
1.4 Optional supplementary requirements are provided at the end of this standard.  
1.5 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.  
1.6 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
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.

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ASTM A354-17e1 - Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
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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
´1
Designation:A354 −17
Standard Specification for
Quenched and Tempered Alloy Steel Bolts, Studs, and Other
1
Externally Threaded Fasteners
This standard is issued under the fixed designation A354; 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
ε NOTE—Table 4 was editorially corrected in November 2017.
1. Scope*
Nut Grade and
A
Grade of Fastener and Surface Finish Style
2
1.1 This specification covers the chemical and mechanical
BC, plain (or with a coating of insufficient thick- C, heavy hex
ness to require over-tapped nuts)
requirementsofquenchedandtemperedalloysteelbolts,studs,
BC, zinc-coated (or with a coating thickness re- DH, heavy hex
and other externally threaded fasteners 4 in. and under in
quiring over-tapped nuts)
diameter for application at normal atmospheric temperatures,
BD, all finishes DH, heavy hex
where high strength is required and for limited application at
A
Nuts of other grades and styles having specified proof load stresses (Specifica-
elevated temperature (Note 1). Any alloy steel capable of
tion A563, Table 3) greater than the specified grade and style of nut are suitable.
meeting the mechanical and chemical properties set forth in
1.4 Optional supplementary requirements are provided at
this specification may be used.
the end of this standard.
NOTE 1—For bolts, studs, or other externally threaded fasteners, to be
used at elevated temperatures, refer to Specification A193/A193M. 1.5 Terms used in this specification are defined in Termi-
nology F1789 unless otherwise defined herein.
1.2 Two strength levels are covered, designated Grades BC
and BD. Selection will depend upon design and the stresses
1.6 The values stated in inch-pound units are to be regarded
and service for which the product is to be used.
as standard. No other units of measurement are included in this
standard.
NOTE 2—Quenched and tempered alloy steel bolts for structural steel
1
joints up through 1 ⁄2 in. in diameter are covered in Specification
1.7 This international standard was developed in accor-
1
F3125/F3125M.Forfastenerdiametersizesabove1 ⁄2in.,GradeBCmay
dance with internationally recognized principles on standard-
be considered for structural steel bolting where tensile strength above 120
ization established in the Decision on Principles for the
ksi is necessary and Grade BD may be considered for structural steel
Development of International Standards, Guides and Recom-
bolting where tensile strength above 150 ksi is necessary. In this event,
additional requirements of Specification F3125/F3125M, such as head mendations issued by the World Trade Organization Technical
size, lubricant, and magnetic particle inspection, should be carefully
Barriers to Trade (TBT) Committee.
considered.
2. Referenced Documents
1.3 Nuts are covered in Specification A563. Unless other-
3
wise specified, the grade and style of nut for each grade of
2.1 ASTM Standards:
fastener shall be as follows:
A193/A193M Specification for Alloy-Steel and Stainless
Steel Bolting for High Temperature or High Pressure
Service and Other Special Purpose Applications
A563 Specification for Carbon and Alloy Steel Nuts
A751 Test Methods, Practices, and Terminology for Chemi-
cal Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically De-
posited on Iron and Steel
1
E23 Test Methods for Notched Bar Impact Testing of Me-
This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
tallic Materials
Nuts, Rivets and Washers.
Current edition approved May 1, 2017. Published June 2017. Originally
3
approved in 1952. Last previous edition approved in 2011 as A354 – 11. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/A0354-17E01. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-354 in Section II of that Code. the ASTM website.
*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

---------------------- Page: 1 ----------------------
´1
A354−17
E709 Guide for Magnetic Particle Testing 3.1.7 Other Finishes—Specify other protective finish, if
E1268 Practice for Assessing the Degree of Banding or required.
Orientatio
...

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.
´1
Designation: A354 − 17 A354 − 17
Standard Specification for
Quenched and Tempered Alloy Steel Bolts, Studs, and Other
1
Externally Threaded Fasteners
This standard is issued under the fixed designation A354; 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
ε NOTE—Table 4 was editorially corrected in November 2017.
1. Scope*
2
1.1 This specification covers the chemical and mechanical requirements of quenched and tempered alloy steel bolts, studs, and
other externally threaded fasteners 4 in. and under in diameter for application at normal atmospheric temperatures, where high
strength is required and for limited application at elevated temperature (Note 1). Any alloy steel capable of meeting the mechanical
and chemical properties set forth in this specification may be used.
NOTE 1—For bolts, studs, or other externally threaded fasteners, to be used at elevated temperatures, refer to Specification A193/A193M.
1.2 Two strength levels are covered, designated Grades BC and BD. Selection will depend upon design and the stresses and
service for which the product is to be used.
1
NOTE 2—Quenched and tempered alloy steel bolts for structural steel joints up through 1 ⁄2 in. in diameter are covered in Specification F3125/F3125M.
1
For fastener diameter sizes above 1 ⁄2 in., Grade BC may be considered for structural steel bolting where tensile strength above 120 ksi is necessary and
Grade BD may be considered for structural steel bolting where tensile strength above 150 ksi is necessary. In this event, additional requirements of
Specification F3125/F3125M, such as head size, lubricant, and magnetic particle inspection, should be carefully considered.
1.3 Nuts are covered in Specification A563. Unless otherwise specified, the grade and style of nut for each grade of fastener
shall be as follows:
1
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved May 1, 2017. Published June 2017. Originally approved in 1952. Last previous edition approved in 2011 as A354 – 11. DOI:
10.1520/A0354-17.10.1520/A0354-17E01.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-354 in Section II of that Code.
*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

---------------------- Page: 1 ----------------------
´1
A354 − 17
Nut Grade and
A
Grade of Fastener and Surface Finish Style
BC, plain (or with a coating of insufficient thick- C, heavy hex
ness to require over-tapped nuts)
BC, zinc-coated (or with a coating thickness re- DH, heavy hex
quiring over-tapped nuts)
BD, all finishes DH, heavy hex
A
Nuts of other grades and styles having specified proof load stresses (Specification A563, Table 3) greater than the specified grade and style of nut are suitable.
1.4 Optional supplementary requirements are provided at the end of this standard.
1.5 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.
1.6 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
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
3
2.1 ASTM Standards:
A193/A193M Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other
Special Purpose Applications
A563 Specification for Carbon and Alloy Steel Nuts
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
E23 Test Methods for Notched Bar Impact Testing of Metallic Materials
E709 Guide for Magnetic Particle Testing
E1268 Practice for Assessing the Degree of Banding or Orientation of
...

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