ASTM_A615_A615M-20

Thisoed in accordance with internationally recogstandardization established in the Decision on Principles for the99牌8P88ei化ical Barriers to Trade (TBT)Committee.West Conshohocken,Pennsylvania 19428-2959A615/A615Mica.0 copy has been madeAmerican Association State Highway andTransportation Omclals Standardby the Directorate for Standardsand Quality (STAMEQ)under licenseAASHTO No.:M 31from ASTM InternationalStandard Specification forDeformed and Plain Carbon-Steel Bars for ConcreteReinforcement'This standard is issued under the fixed designation A615/A615M:the number immediately following the designation indicates the yearof 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 U.S.Department of Defense.1.Scope*design codes and specifications may not recognize the use of the No.201.1 This specification covers deformed and plain carbon-164]bar,the largest bar included in this specification.Structural membersreinforced with No.20 [64]bars may require approval of the buildingsteel bars in cut lengths and coils for concrete reinforcement.official or other appropriate authority and require special detailing toAnnex A2 of this specification covers deformed bars for use forensure adequate performance at service and factored loads.other applications.Steel bars containing alloy additions.such1.3 Plain bars,in sizes up to and including 2%in.[63.5 mm]as with the Association for Iron and Steel Technology and thein diameter in coils or cut lengths.when ordered shall beSociety of Automotive Engineers series of alloy steels,arefurnished under this specification in Grade 40 [280].Grade 60permitted if the resulting product meets all the other require-[420],Grade 80 [550].and Grade 100 [690].For ductilityments of this specification.The standard sizes and dimensionsproperties (elongation and bending).test provisions of theof deformed bars and their number designations are given innearest smaller nominal diameter deformed bar size shallTable 1.apply.Requirements providing for deformations and marking1.2 Unless specified for use for other applications in Annexshall not be applicable.A2,bars are of four minimum yield strength levels:namely40000psi[280MPal,60000psi[420MPal,80000psi[550NorE 3-Welding of the material in this specification should beapproached with caution since no specific provisions have been includedMPa].and 100 000 psi [690 MPa].designated as Grade 40to enhance its weldability.When this steel is to be welded.a welding[280].Grade 60 [420],Grade 80 [550],and Grade 100 [690].procedure suitable for the chemical composition and intended use orrespectively.service should be used.The use of the latest edition of AWS D1.4 DI.4Mis recommended.The AWS DI.4/D1.4M Welding Code describes theNorE 1-Grade 100 [690]reinforcing bars were introdu