ASTM A354-07a
(Specification)Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
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 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 minimum 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 A 193/A 193M.
1.2 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.
Note 2—Quenched and tempered alloy steel bolts for structural steel joints up through 1½ in. in diameter are covered in Specification A 490. Alloy steel bolts, studs, and other externally threaded fasteners (that is, heavy hex-structural bolts over 1½ in., hex bolts, anchor bolts, and countersunk bolts) exhibiting similar mechanical properties to bolts conforming to Specification A 490 shall be covered by Grade BD of this specification.
When bolts of Grade BD of this specification are considered for pretentioned applications in excess of 50 % of the bolt tensile strength, the additional requirements of head size, maximum tensile strength, nut size and strength, washer hardness, tests, and inspections contained in Specification A 490 should be carefully considered.
1.3 Nuts are covered in Specification A 563. 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 A 563, Table 3) greater than the specified grade and style of nut are suitable.
1.4 The values stated in inch-pound units are to be regarded as the standard.
1.5 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.
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Designation: A354 – 07a
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 Department of Defense.
1. Scope*
Nut Grade and
A
Grade of Fastener and Surface Finish Style
2
1.1 This specification covers the chemical and mechanical
requirementsofquenchedandtemperedalloysteelbolts,studs, BC, plain (or with a coating of insufficient thick- C, heavy hex
ness to require over-tapped nuts)
and other externally threaded fasteners 4 in. and under in
BC, zinc-coated (or with a coating thickness re- DH, heavy hex
diameter for application at normal atmospheric temperatures,
quiring over-tapped nuts)
where high strength is required and for limited application at
BD, all finishes DH, heavy hex
elevated temperature (Note 1). Any alloy steel capable of
A
Nuts of other grades and styles having specified proof load stresses (Speci-
meeting the minimum mechanical and chemical properties set
fication A563, Table 3) greater than the specified grade and style of nut are
suitable.
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.
1.4 The values stated in inch-pound units are to be regarded
1.2 Two levels of bolting strength are covered, designated
as the standard.
Grades BC and BD. Selection will depend upon design and the
1.5 Terms used in this specification are defined in Termi-
stresses and service for which the product is to be used.
nology F1789 unless otherwise defined herein.
NOTE 2—Quenched and tempered alloy steel bolts for structural steel
1 2. Referenced Documents
joints up through 1 ⁄2 in. in diameter are covered in Specification A490.
3
Alloy steel bolts, studs, and other externally threaded fasteners (that is,
2.1 ASTM Standards:
1
heavy hex-structural bolts over 1 ⁄2 in., hex bolts, anchor bolts, and
A193/A193M Specification for Alloy-Steel and Stainless
countersunk bolts) exhibiting similar mechanical properties to bolts
Steel Bolting Materials for High Temperature or High
conforming to Specification A490 shall be covered by Grade BD of this
Pressure Service and Other Special Purpose Applications
specification.
A490 Specification for Structural Bolts, Alloy Steel, Heat
When bolts of Grade BD of this specification are considered for
Treated, 150 ksi Minimum Tensile Strength
pretentionedapplicationsinexcessof50 %ofthebolttensilestrength,the
additional requirements of head size, maximum tensile strength, nut size
A563 Specification for Carbon and Alloy Steel Nuts
and strength, washer hardness, tests, and inspections contained in Speci-
A751 Test Methods, Practices, andTerminology for Chemi-
fication A490 should be carefully considered.
cal Analysis of Steel Products
1.3 Nuts are covered in Specification A563. Unless other- B695 Specification for Coatings of Zinc Mechanically De-
wise specified, the grade and style of nut for each grade of posited on Iron and Steel
fastener shall be as follows: D3951 Practice for Commercial Packaging
F436 Specification for Hardened Steel Washers
F606 Test Methods for Determining the Mechanical Prop-
erties of Externally and Internally Threaded Fasteners,
1
Washers, Direct Tension Indicators, and Rivets
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 Dec. 1, 2007. Published January 2008. Originally
3
approved in 1952. Last previous edition approved in 2007 as A354 – 07. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/A0354-07A. 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 ----------------------
A354 – 07a
F788/F788M Specification for Surface Discontinuities of 4.4.1 When zinc-coated fasteners are required, the pur-
Bolts, Screws, and Studs, Inch and Metric Series chaser shall specify the zinc coating process
...
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:A354–07 Designation: A 354 – 07a
Standard Specification for
Quenched and Tempered Alloy Steel Bolts, Studs, and Other
1
Externally Threaded Fasteners
This standard is issued under the fixed designation A 354; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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 minimum
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 A 193/A 193M.
1.2 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.
1
NOTE 2—Quenched and tempered alloy steel bolts for structural steel joints up through 1 ⁄2 in. in diameter are covered in Specification A 490. Alloy
1
steel bolts, studs, and other externally threaded fasteners (that is, heavy hex-structural bolts over 1 ⁄2 in., hex bolts, anchor bolts, and countersunk bolts)
exhibiting similar mechanical properties to bolts conforming to Specification A 490 shall be covered by Grade BD of this specification.
When bolts of Grade BD of this specification are considered for pretentioned applications in excess of 50 % of the bolt tensile strength, the additional
requirements of head size, maximum tensile strength, nut size and strength, washer hardness, tests, and inspections contained in Specification A 490
should be carefully considered.
1.3 Nuts are covered in Specification A 563. 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.
e1
Current edition approvedAug.Dec. 1, 2007. PublishedAugust 2007.January 2008. Originally approved in 1952. Last previous edition approved in 20042007 asA354–04
. A 354 – 07.
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 ----------------------
A 354 – 07a
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 A 563, Table 3) greater than the specified grade and style of nut are suitable.
1.4 The values stated in inch-pound units are to be regarded as the standard.
1.5 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.
2. Referenced Documents
3
2.1 ASTM Standards:
A 193/A 193M Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure
Service and Other Special Purpose Applications
A 490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
A 563 Specification for Carbons and Alloy Steel Nuts
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B 695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D 3951 Practice for Commercial Packaging
F 436 Specification for Hardened Steel Washers
F 606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
Direct Tension Indicators, and Rivets
F 788/F 788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F 1470 Guide fo
...
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