ASTM A325-07
(Specification)Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
SCOPE
1.1 This specification covers two types of quenched and tempered steel heavy hex structural bolts having a minimum tensile strength of 120 ksi for sizes 1.0 in. and less and 105 ksi for sizes over 1.0 to 11/2 in., inclusive.
1.2 The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A 325 or A 490 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
1.3 The bolts are furnished in sizes 1/2 to 11/2 in., inclusive. They are designated by type, denoting chemical composition as follows:Type Description Type 1 Medium carbon, carbon boron, or medium carbon alloy steel. Type 2 Withdrawn in November 1991. Type 3 Weathering steel. Note 1Bolts for general applications, including anchor bolts, are covered by Specification A 449. Also refer to Specification A 449 for quenched and tempered steel bolts and studs with diameters greater than 11/2 in. but with similar mechanical properties.
Note 2
A complete metric companion to Specification A 325 has been developed-Specification A 325M; therefore, no metric equivalents are presented in this specification.
1.4 This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A 449.
1.5 Terms used in this specification are defined in Terminology F 1789.
The following safety hazard caveat pertains only to the test methods portion, Section , 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 and health practices and determine the applicability of regulatory limitations prior to use.
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American Association
Designation: A 325 – 07 State Highway and
Transportation Officials
Standard AASHTO No.: M 164
Standard Specification for
Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum
1
Tensile Strength
This standard is issued under the fixed designation A 325; 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* standard does not purport to address all of the safety concerns,
2 if any, associated with its use. It is the responsibility of the user
1.1 This specification covers two types of quenched and
of this standard to establish appropriate safety and health
tempered steel heavy hex structural bolts having a minimum
practices and determine the applicability of regulatory limita-
tensile strength of 120 ksi for sizes 1.0 in. and less and 105 ksi
1 tions prior to use.
for sizes over 1.0 to 1 ⁄2 in., inclusive.
1.2 The bolts are intended for use in structural connections.
2. Referenced Documents
These connections are covered under the requirements of the
4
2.1 ASTM Standards:
SpecificationforStructuralJointsUsingASTMA 325orA 490
A 194/A 194M Specification for Carbon and Alloy Steel
Bolts, approved by the Research Council on Structural Con-
Nuts for Bolts for High Pressure or High Temperature
nections,endorsedbytheAmericanInstituteofSteelConstruc-
3 Service, or Both
tion and by the Industrial Fastener Institute.
A 449 Specification for Hex Cap Screws, Bolts and Studs,
1 1
1.3 The bolts are furnished in sizes ⁄2 to 1 ⁄2 in., inclusive.
Steel, Heat Treated, 120/105/90 ksi Minimum Tensile
Theyaredesignatedbytype,denotingchemicalcompositionas
Strength, General Use
follows:
A 490 Specification for Structural Bolts, Alloy Steel, Heat
Type Description
Treated, 150 ksi Minimum Tensile Strength
A 563 Specification for Carbons and Alloy Steel Nuts
Type 1 Medium carbon, carbon boron, or medium carbon alloy steel.
A 751 Test Methods, Practices, and Terminology for
Type 2 Withdrawn in November 1991.
Chemical Analysis of Steel Products
Type 3 Weathering steel.
B 695 Specification for Coatings of Zinc Mechanically
NOTE 1—Bolts for general applications, including anchor bolts, are
Deposited on Iron and Steel
covered by Specification A 449. Also refer to Specification A 449 for
D 3951 Practice for Commercial Packaging
quenched and tempered steel bolts and studs with diameters greater than
1
1 ⁄2 in. but with similar mechanical properties. F 436 Specification for Hardened Steel Washers
NOTE 2—A complete metric companion to Specification A 325 has
F 606 Test Methods for Determining the Mechanical Prop-
been developed—Specification A 325M; therefore, no metric equivalents
erties of Externally and Internally Threaded Fasteners,
are presented in this specification.
Washers, Direct Tension Indicators, and Rivets
1.4 This specification is applicable to heavy hex structural
F 788/F 788M Specification for Surface Discontinuities of
bolts only. For bolts of other configurations and thread lengths
Bolts, Screws, and Studs, Inch and Metric Series
with similar mechanical properties, see Specification A 449.
F 959 Specification for Compressible-Washer-Type Direct
1.5 Terms used in this specification are defined in Termi-
Tension Indicators for Use with Structural Fasteners
nology F 1789.
F 1470 GuideforFastenerSamplingforSpecifiedMechani-
1.6 The following safety hazard caveat pertains only to the
cal Properties and Performance Inspection
test methods portion, Section 10, of this specification: This
F 1789 Terminology for F16 Mechanical Fasteners
F 2329 Specification for Zinc Coating, Hot-Dip, Require-
ments for Application to Carbon and Alloy Steel Bolts,
1
Screws, Washers, Nuts, and Special Threaded Fasteners
This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
G 101 Guide for Estimating the Atmospheric Corrosion
Nuts, Rivets and Washers.
Current edition approved Sept. 15, 2007. Published September 2007. Originally
approved in 1964. Last previous edition approved in 2006 as A 325 – 06.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- For referenced ASTM standards, visit the ASTM website, www.astm.org, or
cation SA-325 in Section II of that Code. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Published byAmerican Institute of Steel Construction (AISC), One E. Wacker Standards volume information, refer to the standard’s Document Summary page on
Dr., Suite 700, Chicago, IL 60601-2001, http://www.ai
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
American Association
Designation:A325–06 Designation: A 325 – 07 State Highway and
Transportation Officials
Standard AASHTO No.: M 164
Standard Specification for
Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum
1
Tensile Strength
This standard is issued under the fixed designation A 325; 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 two types of quenched and tempered steel heavy hex structural bolts having a minimum tensile
1
strength of 120 ksi for sizes 1.0 in. and less and 105 ksi for sizes over 1.0 to 1 ⁄2 in., inclusive.
1.2 The bolts are intended for use in structural connections. These connections are covered under the requirements of the
Specification for Structural Joints Using ASTM A 325 or A 490Bolts, approved by the Research Council on Structural
3
Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
1 1
1.3 The bolts are furnished in sizes ⁄2 to 1 ⁄2 in., inclusive. They are designated by type, denoting chemical composition as
follows:
Type Description
Type 1 Medium carbon, carbon boron, or medium carbon alloy steel.
Type 2 Withdrawn in November 1991.
Type 3 Weathering steel.
NOTE 1—Bolts for general applications, including anchor bolts, are covered by SpecificationA 449.Also refer to SpecificationA 449 for quenched and
1
tempered steel bolts and studs with diameters greater than 1 ⁄2 in. but with similar mechanical properties.
NOTE 2—A complete metric companion to Specification A 325 has been developed—Specification A 325M; therefore, no metric equivalents are
presented in this specification.
1.4 This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with
similar mechanical properties, see Specification A 449.
1.5 Terms used in this specification are defined in Terminology F 1789.
1.6 Thefollowingsafetyhazardcaveatpertainsonlytothetestmethodsportion,Section10,ofthisspecification:Thisstandard
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.
2. Referenced Documents
4
2.1 ASTM Standards: A153/A153MSpecification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A 194/A 194M SpecificationforCarbonandAlloySteelNutsforBoltsforHighPressureorHighTemperatureService,orBoth
A 449 Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength,
General Use
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
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 Aug. 1, 2006. Published August 2006. Originally approved in 1964. Last previous edition approved in 2004 as A325–04b.
Current edition approved Sept. 15, 2007. Published September 2007. Originally approved in 1964. Last previous edition approved in 2006 as A 325 – 06.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-325 in Section II of that Code.
3
Published by American Institute of Steel Construction (AISC), One E. Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org.
4
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on 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.
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A325–07
F 436 Spec
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