ASTM A490-10ae1
(Specification)Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
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1.1 This specification covers two types of quenched and tempered, alloy steel, heavy hex structural bolts having a tensile strength of 150 to 173 ksi.
1.2 These bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using Specification A325 or A490 bolts, approved by the Research Council on Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
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American Association State
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Designation: A490 – 10a Highway and Transportation
Officials Standard
AASHTO No.: M 253
Standard Specification for
Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum
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Tensile Strength
This standard is issued under the fixed designation A490; 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.
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´ NOTE—Note 1 and sections 3.2.1, 3.2.2, 3.3, and 17.2 were editorially corrected in February 2011.
1. Scope* of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
1.1 This specification covers two types of quenched and
tions prior to use.
tempered, alloy steel, heavy hex structural bolts having a
tensile strength of 150 to 173 ksi.
2. Referenced Documents
1.2 These bolts are intended for use in structural connec-
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2.1 ASTM Standards:
tions.These connections are covered under the requirements of
A194/A194M Specification for Carbon and Alloy Steel
theSpecificationforStructuralJointsUsingSpecificationA325
Nuts for Bolts for High Pressure or High Temperature
orA490 bolts, approved by the Research Council on Structural
Service, or Both
Connections; endorsed by the American Institute of Steel
2 A325 SpecificationforStructuralBolts,Steel,HeatTreated,
Construction and by the Industrial Fastener Institute.
120/105 ksi Minimum Tensile Strength
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1.3 The bolts are furnished in sizes ⁄2 to 1 ⁄2 in., inclusive.
A354 SpecificationforQuenchedandTemperedAlloySteel
They are designated by type denoting chemical composition as
Bolts, Studs, and Other Externally Threaded Fasteners
follows:
A490M SpecificationforHigh-StrengthSteelBolts,Classes
Type Description
10.9 and 10.9.3, for Structural Steel Joints (Metric)
Type 1 Medium carbon alloy steel
A563 Specification for Carbon and Alloy Steel Nuts
Type 2 Withdrawn in 2002
A751 Test Methods, Practices, andTerminology for Chemi-
Type 3 Weathering steel
cal Analysis of Steel Products
1.4 This specification provides that heavy hex structural
D3951 Practice for Commercial Packaging
bolts shall be furnished unless other dimensional requirements
E384 Test Method for Knoop and Vickers Hardness of
are specified on the purchase order.
Materials
1.5 Terms used in this specification are defined in Termi-
E709 Guide for Magnetic Particle Testing
nology F1789 unless otherwise defined herein.
E1444 Practice for Magnetic Particle Testing
1.6 For metric bolts, see SpecificationA490M Classes 10.9
F436 Specification for Hardened Steel Washers
and 10.9.3
F606 Test Methods for Determining the Mechanical Prop-
1.7 The values stated in inch-pound units are to be regarded
erties of Externally and Internally Threaded Fasteners,
as standard. No other units of measurement are included in this
Washers, Direct Tension Indicators, and Rivets
standard.
F788/F788M Specification for Surface Discontinuities of
1.8 The following safety hazards caveat pertains only to the
Bolts, Screws, and Studs, Inch and Metric Series
Test Methods portion, Section 12 of this specification: This
F959 Specification for Compressible-Washer-Type Direct
standard does not purport to address all of the safety concerns,
Tension Indicators for Use with Structural Fasteners
if any, associated with its use. It is the responsibility of the user
F1136 Specification for Zinc/Aluminum Corrosion Protec-
tive Coatings for Fasteners
F1470 Practice for Fastener Sampling for Specified Me-
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This specification is under the jurisdiction of ASTM Committee F16 on chanical Properties and Performance Inspection
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
Nuts, Rivets and Washers.
Current edition approved Dec. 1, 2010. Published January 2011. Originally
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approved in 1964. Last previous edition approved in 2010 as A490 – 10. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/A0490-10AE01. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Available from American Institute of Steel Construction (AISC), One E. Standards volume information, refer to the standard’s Document Summary page on
Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org. 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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A490 – 10a
F1789 Terminology for F16 Mechanical Fasteners 3.2.2 Alternatively, nut
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