ASTM_A_490_-_14a.pdf

Designation:A49014aAmerican Association StateHighway and TransportationOfficials StandardAASHTO No.:M 253Standard Specification forStructural Bolts,Alloy Steel,Heat Treated,150 ksi MinimumTensile Strength1This standard is issued under the fixed designation A490;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification covers two types of quenched andtempered,alloy steel,heavy hex structural bolts having atensile strength of 150 to 173 ksi.1.2 These bolts are intended for use in structural connec-tions.These connections are covered under the requirements ofthe Specification for Structural Joints Using SpecificationA325 or A490 bolts,approved by the Research Council onStructural Connections;endorsed by the American Institute ofSteel Construction and by the Industrial Fastener Institute.21.3 The bolts are furnished in sizes12to 112in.,inclusive.They are designated by type denoting chemical composition asfollows:TypeDescriptionType 1Medium carbon alloy steelType 2Withdrawn in 2002Type 3Weathering steel1.4 This specification provides that heavy hex structuralbolts shall be furnished unless other dimensional requirementsare specified on the purchase order.1.5 Terms used in this specification are defined in Termi-nology F1789 unless otherwise defined herein.1.6 For metric bolts,see Specification A490M Classes 10.9and 10.9.31.7 The values stated in inch-pound units are to be regardedas standard.No other units of measurement are included in thisstandard.1.8 The following safety hazards caveat pertains only to theTest Methods portion,Section 12 of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:3A194/A194M Specification for Carbon andAlloy Steel Nutsfor Bolts for High Pressure or High Temperature Service,or BothA325 Specification for Structural Bolts,Steel,Heat Treated,120/105 ksi Minimum Tensile StrengthA354 Specification for Quenched and Tempered Alloy SteelBolts,Studs,and Other Externally Threaded FastenersA490M Specification for High-Strength Steel Bolts,Classes10.9 and 10.9.3,for Structural Steel Joints(Metric)A563 Specification for Carbon and Alloy Steel NutsA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsD3951 Practice for Commercial PackagingE384 Test Method for Knoop and Vickers Hardness ofMaterialsE709 Guide for Magnetic Particle TestingE1444 Practice for Magnetic Particle TestingF436 Specification for Hardened Steel WashersF606 Test Methods for Determining the Mechanical Proper-ties of Externally and Internally Threaded Fasteners,Washers,Direct Tension Indicators,and RivetsF788/F788M Specification for Surface Discontinuities ofBolts,Screws,and Studs,Inch and Metric SeriesF959 Specification for Compressible-Washer-Type DirectTension Indicators for Use with Structural FastenersF1136 Specification for Zinc/Aluminum Corrosion Protec-tive Coatings for Fasteners1This specification is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,Nuts,Rivets and Washers.Current edition approved Sept.1,2014.Published December 2014.Originallyapproved in 1964.Last previous edition approved in 2014 as A490 14.DOI:10.1520/A0490-14A.2Available from American Institute of Steel Construction(AISC),One E.Wacker Dr.,Suite 700,Chicago,IL 60601-2001,http:/www.aisc.org.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 F1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance InspectionF1789 Terminology for F16 Mechanical FastenersF2328 Test Method for Determining Decarburization andCarburization in Hardened and Tempered Threaded SteelBolts,Screws,Studs,and NutsF2833 Specification for Corrosion Protective Fastener Coat-ings with Zinc Rich Base Coat and Aluminum Organic/Inorganic TypeG101 Guide for Estimating the Atmospheric Corrosion Re-sistance of Low-Alloy Steels2.2 ASME Standards:4B1.1 Unified Screw ThreadsB18.2.6 Fasteners for Use in Structural ApplicationsB18.24 Part Identification Number(PIN)Code System Stan-dard