ASTM A490-04
(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
SCOPE
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 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 1 ½ in., inclusive. They are designated by type denoting chemical composition as follows:TypeDescriptionType 1Medium carbon alloy steelType 2Withdrawn in 2002Type 3Weathering steel
1.4 This specification provides that heavy hex structural bolts shall be furnished unless other dimensional requirements are specified on the purchase order.
1.5 Terms used in this specification are defined in Specification F 1789 unless otherwise defined herein.
1.6 For metric bolts, see Specification A 490M Classes 10.9 and 10.9.3
1.7 The following safety hazards caveat pertains only to the Test Methods portion, Section 1412 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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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
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American Association State
Designation: A 490 – 04 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 A 490; 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. Referenced Documents
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1.1 This specification covers two types of quenched and 2.1 ASTM Standards:
tempered, alloy steel, heavy hex structural bolts having a A 194/A 194M Specification for Carbon and Alloy Steel
tensile strength of 150 to 173 ksi. Nuts for Bolts for High-Pressure and High-Temperature
1.2 These bolts are intended for use in structural connec- Service
tions.These connections are covered under the requirements of A 325 Specification for Structural Bolts, Steel, Heat
the Specification for Structural Joints Using Specification Treated, 120/105 ksi Minimum Tensile Strength
A 325 or A 490 bolts, approved by the Research Council on A 354 Specification for Quenched and Tempered Alloy
Structural Connections; endorsed by the American Institute of Steel Bolts, Studs, and Other Externally Threaded Fasten-
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Steel Construction and by the Industrial Fastener Institute. ers
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1.3 The bolts are furnished in sizes ⁄2 to 1 ⁄2 in., inclusive. A 563 Specification for Carbon and Alloy Steel Nuts
They are designated by type denoting chemical composition as A 751 Test Methods, Practices, and Terminology for
follows: Chemical Analysis of Steel Products
D 3951 Practice for Commercial Packaging
Type Description
E 384 Test Method for Microindentationhardness of Mate-
Type 1 Medium carbon alloy steel
rials
Type 2 Withdrawn in 2002
Type 3 Weathering steel E 709 Guide for Magnetic Particle Examination
E 1444 Practice for Magnetic Particle Inspection
1.4 This specification provides that heavy hex structural
F 436 Specification for Hardened Steel Washers
bolts shall be furnished unless other dimensional requirements
F 606 Test Methods for Determining the Mechanical Prop-
are specified on the purchase order.
erties of Externally and Internally Threaded Fasteners,
1.5 Terms used in this specification are defined in Specifi-
Washers, and Rivets
cation F 1789 unless otherwise defined herein.
F 788/F 788M Specification for Surface Discontinuities of
1.6 For metric bolts, see SpecificationA 490M Classes 10.9
Bolts, Screws, and Studs, Inch and Metric Series
and 10.9.3
F 959 Specification for Compressible-Washer-Type Direct
1.7 The following safety hazards caveat pertains only to the
Tension Indicators for Use with Structural Fasteners
Test Methods portion, Section 1412 of this specification: This
F 1470 GuideforFastenerSamplingforSpecifiedMechani-
standard does not purport to address all of the safety concerns,
cal Properties and Performance Inspection
if any, associated with its use. It is the responsibility of the user
F 1789 Terminology for F16 Mechanical Fasteners
of this standard to establish appropriate safety and health
G 101 Guide for Estimating the Atmospheric Corrosion
practices and determine the applicability of regulatory limita-
Resistance of Low-Alloy Steels
tions prior to use.
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2.2 ASME Standards:
B1.1 Unified Screw Threads
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This specification is under the jurisdiction of ASTM Committee F16 on
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Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Nuts, Rivets, and Washers. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Jan. 1, 2004. Published January 2004. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1964. Last previous edition approved in 2002 as A 490 – 02. the ASTM website.
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Available from American Institute of Steel Construction (AISC), One E. Available from American Society of Mechanical Engineers (ASME), ASME
Wacker Dr., Suite 3100, Chicago, IL 60601-2001. International Headquarters, Three Park Ave., New York, NY 10016-5990.
*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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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.
A 490–04
B18.2.6 Fasteners for Use in Structural Applications 4.
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