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ASTM A490-06

(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 11/2in., 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 Terminology F 1789 unless otherwise defined herein.
1.6 For metric bolts, see Specification A 490M Classes 10.9 and 10.9.3
The following safety hazards 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.

General Information

Status
Historical
Publication Date
31-Jul-2006
ICS
21.060.10 - Bolts, screws, studs
Technical Committee
F16 - Fasteners
Drafting Committee
F16.02 - Steel Bolts, Studs and Nuts
Current Stage
Ref Project

Relations

Replaces
ASTM A490-04a - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
Effective Date
01-Aug-2006
Replaced By
ASTM A490-08 - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
Effective Date
01-Jan-2008
Referred By
ASTM F1624-12(2018) - Standard Test Method for Measurement of Hydrogen Embrittlement Threshold in Steel by the Incremental Step Loading Technique
Effective Date
01-Aug-2006
Referred By
ASTM F959/F959M-17a - Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series
Effective Date
01-Aug-2006
Referred By
ASTM C1802-23 - Standard Specification for Design, Testing, Manufacture, Selection, and Installation of Horizontal Fabricated Metal Access Hatches for Utility, Water, and Wastewater Structures
Effective Date
01-Aug-2006
Referred By
ASTM C1533-15(2022) - Standard Guide for General Design Considerations for Hot Cell Equipment
Effective Date
01-Aug-2006

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ASTM A490-06 - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile StrengthASTM A490-06 - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
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ASTM A490-06 - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
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Standards Content (Sample)

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
American Association State
Designation: A 490 – 06 Highway and Transportation
Officials Standard
AASHTO No.: M 253
Standard Specification for
Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum
1
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
3
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 or High Temperature
1.2 These bolts are intended for use in structural connec- Service, or Both
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-
2
Steel Construction and by the Industrial Fastener Institute. ers
1 1
1.3 The bolts are furnished in sizes ⁄2 to 1 ⁄2 in., inclusive. A 490M Specification for High-Strength Steel Bolts,
They are designated by type denoting chemical composition as Classes10.9and10.9.3,forStructuralSteelJoints[Metric]
follows: A 563 Specification for Carbon and Alloy Steel Nuts
A 751 Test Methods, Practices, and Terminology for
Type Description
Chemical Analysis of Steel Products
Type 1 Medium carbon alloy steel
D 3951 Practice for Commercial Packaging
Type 2 Withdrawn in 2002
Type 3 Weathering steel E 384 Test Method for Microindentation Hardness of Ma-
terials
1.4 This specification provides that heavy hex structural
E 709 Guide for Magnetic Particle Examination
bolts shall be furnished unless other dimensional requirements
E 1444 Practice for Magnetic Particle Testing
are specified on the purchase order.
F 436 Specification for Hardened Steel Washers
1.5 Terms used in this specification are defined in Termi-
F 606 Test Methods for Determining the Mechanical Prop-
nology F 1789 unless otherwise defined herein.
erties of Externally and Internally Threaded Fasteners,
1.6 For metric bolts, see SpecificationA 490M Classes 10.9
Washers, and Rivets
and 10.9.3
F 788/F 788M Specification for Surface Discontinuities of
1.7 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
F 959 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
F 1470 GuideforFastenerSamplingforSpecifiedMechani-
of this standard to establish appropriate safety and health
cal Properties and Performance Inspection
practices and determine the applicability of regulatory limita-
F 1789 Terminology for F16 Mechanical Fasteners
tions prior to use.
G 101 Guide for Estimating the Atmospheric Corrosion
Resistance of Low-Alloy Steels
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.
3
Current edition approved Aug. 1, 2006. Published August 2006. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1964. Last previous edition approved in 2004 as A 490 – 04a. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
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.
1

---------------------- Page: 1 ----------------------
A 490–06
4
2.2 ASME Standards: 3.4 Other Accessories—When compressible washer type
B1.1 Unified Screw Threads direct tension indicators are specified to be used with these
B18.2.6 Fasteners for Use in Structural Applications bolts, they shall conform to Specification F 959 Type 490.
B18.24 Part
...

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This specification provides the chemical, physical and mechanical requirements for quenched and tempered bolts manufactured from steel and alloy steel, in inch and metric dimensions, in two strength grades, two types and two styles. It is intended to ensure alignment between standards with the same intended end use and to simplify the use and maintenance of structural bolt specifications.
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1.1 This specification covers the requirements for quenched and tempered alloy steel hexagon socket button (SBHCS) 0.060 through 0.625 thread sizes, flat countersunk (SFHCS) 0.060 through 1.5 thread sizes and low (SLHCS) 0.1120 through 0.625 thread sizes head cap screws having material properties for high-strength requirements.  
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This specification covers the chemical and mechanical requirements for stainless steel metric hexagon socket button (SBHCS) and flat countersunk (SFHCS) head cap screws with nominal thread M 3 through M 20 intended for use in applications requiring general corrosion resistance. These steels are designated into three classes: Austenitic Class A 1-50 in an annealed condition, Austenitic Class A1-55 in a cold worked condition, and Austenitic Class A 1-70 in a cold worked condition. The austenitic stainless steel socket screw shall be designated F879M A1-50, F879M A1–55, or F 879M A1-70. Screws shall be formed by upsetting or extruding, or both. Also, these screws shall be roll threaded. Austenitic alloys ClassA 1-50 screws, following manufacture, shall be annealed by heating to a certain temperature to obtain maximum corrosion resistance and minimum permeability. The screws shall be held for a sufficient time at temperature, then cooled at a rate sufficient to prevent precipitation of the carbide and provide the properties specified. Different tests shall be conducted in order to determine the following mechanical properties of screws: tensile strength, minimum extension, yield strength, elongation, Vickers hardness, and Rockwell hardness.
SCOPE
1.1 This specification covers the chemical and mechanical requirements for stainless steel inch hexagon socket button (SBHCS), flat countersunk (SFHCS) head cap screws with nominal thread 0.060 through 0.625 in. and low head (SLHCS) cap screws with nominal thread 0.112 through 0.625 in. intended for use in applications requiring general corrosion resistance.  
1.2 Two groups of austenitic stainless steel alloys and three conditions are covered. See Table 1 and Table 2.    
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ABSTRACT
This specification covers the requirements for commercial wrought nonferrous bolts, hex cap screws, and studs manufactured from a number of alloys in common use and intended for general service applications. The bolts, cap screws, and studs shall be manufactured from material having a chemical composition conforming to the requirements specified. The fasteners shall be cold formed, hot formed, or machined from suitable material. Different tests shall be conducted in order to determine the following mechanical properties of fasteners: hardness, tensile strength, yield strength, and elongation.
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1.2 Applicable nuts for use with bolts, cap screws, and studs covered by this specification are covered by Specification F467.  
1.2.1 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
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This specification covers the requirements for quenched and tempered alloy steel socket-head cap screws. The screws shall be fabricated from steel made to fine grain practice and shall be alloy steel conforming to the chemical composition specified. Different tests shall be conducted in order to determine the following mechanical properties of screws: tensile or wedge strength, proof load, yield strength, elongation, Rockwell hardness, and Vickers hardness.
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Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength

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This specification covers the chemical and mechanical requirements for three grades (Grades A, B, and C) of carbon steel bolts and studs in specified sizes. This specification does not cover the requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors, or other similar externally threaded fasteners. When tested, sampled specimens shall adhere to specified values for chemical composition, hardness, tensile strength, yield point, elongation, and dimensions.
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1.1 This specification2 covers the chemical and mechanical requirements of two grades of carbon steel bolts and studs in sizes 1/4 in. through 4 in. The fasteners are designated by “Grade” denoting tensile strength and intended use, as follows:    
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Bolts, studs, and threaded rod having a minimum tensile strength of 60 ksi and intended for general applications,  
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Grade C  
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1.2 This specification does not cover requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors or similar externally threaded fasteners.  
1.3 Suitable nuts are covered in Specification A563. Unless otherwise specified, the grade and style of nut for each grade of fastener, of all surface finishes, shall be as follows:    
Fastener Grade and Size  
Nut Grade and StyleA    
A 1/4 to 11/2 in.  
A, hex  
A over 11/2 to 4 in.  
A, heavy hex  
B, 1/4 to 4 in.  
A, heavy hex    
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 Supplementary Requirement S1 of an optional nature is provided, which describes additional restrictions to be applied when bolts are to be welded. It shall apply only when specified in the inquiry, order, and contract.  
1.6 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.  
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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Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength

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This specification covers the chemical, mechanical, and dimensional requirements, and associated test methods for straight and bent, headed and headless anchor bolts (also known as anchor rods) made of carbon, carbon boron, alloy, or high-strength low-alloy steel and having specified yield strengths. The anchor bolts are furnished in three strength grades, two thread classes, and various sizes, and are intended for anchoring structural supports to concrete foundations such as building columns, column supports for highway signs, street lighting and traffic signals, steel bearing plates, and similar applications. This specification, however, does not cover the requirements for mechanical expansion anchors, powder-activated nails or studs, and anchor bolts fabricated from deformed bars. The bolts shall adhere to specified elemental chemical compositions as examined by heat and product analysis. They shall also be tested for their conformance with mechanical properties such as tensile strength, yield strength, elongation, reduction of area, and stress area. The anchor bolts shall also meet specified values for nominal size, body diameter, bend section, length, bend angle, and coated length.
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1.7 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
1.8 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 F541-12(2020)(Specification)
Standard Specification for Alloy Steel Eyebolts

ABSTRACT
This specification covers the basic requirements and corresponding test methods for forged, quenched, and tempered, alloy steel threaded eyebolts with improved toughness properties and that are chemically and metallurgically constituted to produce a low transition temperature to minimize brittle failure, intended primarily for low temperature applications. The eyebolts are furnished either as straight shank eyebolts (Type 1), or shoulder eyebolts (Type 2). Sampled specimens shall be tested, and conform accordingly to chemical (carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, and nickel), metallurgical (grain size, decarburization, and macrotech properties), and mechanical (Brinell hardness, tensile strength, breaking strength, proof load, impact strength, and bend strength) requirements.
SCOPE
1.1 This specification covers forged, quenched and tempered, alloy steel threaded eyebolts with improved toughness properties and intended primarily for low temperature applications. The eyebolts are chemically and metallurgically constituted to produce a low transition temperature to minimize brittle failure. Maximum thread size is 2.500 in. (63.50 mm).  
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1.2.1 Type 1—Straight Shank Eyebolt.  
1.2.2 Type 2—Shoulder Eyebolt.  
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1.4 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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