ASTM-A572

Designation:A 572/A 572M-07American Association StateHighway and TransportationOfficals StandardAASHTO No.:M225NTERNATIONALStandard Specification forHigh-Strength Low-Alloy Columbium-Vanadium StructuralSteel1This standard is issued under the fixed designation A 572/A 572M;the number immediately following the designation indicates the yeaof 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.l.Scope￥1.9 For structural products produced from coil and fur-1.1 This specification covers five grades of high-strengthnished without heat treatment or with stress relieving only,thelow-alloy structural steel shapes,plates,sheet piling,and bars.additional requirements,including additional testing require-Grades 42 [290],50 [345],and 55 [380]are intended forments and the reporting of additional tests,of A 6/A 6M apply.riveted,bolted,or welded structures.Grades 60 [415]and 65[450]are intended for riveted or bolted construction of bridges,2.Referenced Documentsor for riveted,bolted,or welded construction in other applica-2.1 ASTM Standards:2tions.A 6/A 6M Specification for General Requirements for1.2 For applications,such as welded bridge construction,Rolled Structural Steel Bars,Plates,Shapes,and Sheetwhere notch toughness is important,notch toughness require-Pilingments are to be negotiated between the purchaser and theA 36/A 36M Specification for Carbon Structural SteelproducerA 514/A 514M Specification for High-Yield-Strength,1.3 Specification A 588/A 588M shall not be substituted forQuenched and Tempered Alloy Steel Plate,Suitable forSpecification A 572/A 572M without agreement between theWeldingpurchaser and the supplier.A 588/A 588M Specification for High-Strength Low-Alloy1.4 The use of columbium,vanadium,titanium,nitrogen,orStructural Steel,up to 50 ksi [345 MPa]Minimum Yieldcombinations thereof.within the limitations noted in Section 5.Point,with Atmospheric Corrosion Resistanceis required;the selection of type(1,2,3,or 5)is at the option3.General Requirements for Deliveryof the producer,unless otherwise specified by the purchaser(See Supplementary Requirement S90.)3.1 Structural products furnished under this specification1.5 The maximum thicknesses available in the grades andshall confomm to the requirements of the current edition ofproducts covered by this specification are shown in Table 1.Specification A 6/A 6M,for the specific structural product1.6 When the steel is to be welded,a welding procedureordered,unless a conflict exists in which case this specificationsuitable for the grade of steel and intended use or service is toshall prevail.be utilized.See Appendix X3 of Specification A6/A 6M for3.2 Coils are excluded from qualification to this specifica-information on weldability.tion until they a