ASTM-A709

Designation:A 709/A 709M-08NTERNATIONALStandard Specification forStructural Steel for Bridges1This standard is issued under the fixed designation A 709/A 709M: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 reapprovalA superscript epsilon (e)indicates an editorial change since the last revision or reapproval.1.Scope*1.4 For structural products to be used as tension components1.1 This specification covers carbon and high-strength low-requiring notch toughness testing,standardized requirementsalloy steel structural shapes,plates,and bars and quenched andareprovided in this standard,and they are based upontempered alloy steel for structural plates intended for use inAmerican Association of State Highway and Transportationbridges.Nine grades are available in four yield strength levelsOfficials (AASHTO)requirements for both fracture critical andas follows:non-fracture critical members.Grade U.S.[SI]Yield Strength,ksi [MPa]1.5 Supplementary requirements are available but shallapply only if specified in the purchase order.36【2503625015013455034511.6 The values stated in either inch-pound units or SI units50S[345S】50345]are to be regarded separately as standard.Within the text,the50W345WM50345]SI units are shown in brackets.The values stated in eachHPS 50W [HPS 345W]50345]HPS 70W [HPS 485W]70485]system are not exact equivalents;therefore,each system is to100B901100[6901be used independently of the other.Combining values from the100WI690W1100[690]two systems may result in non-conformance with the standard.HPS 100W [HPS 690W]100[690】1.7 For structural products produced from coil and fur-1.1.1 Grades36[2501,50[345],50S[345S],50W[345W],nished without heat treatment or with stress relieving only,the100 [690],and 100W [690W]are also included in Specifica-additional requirements,including additional testing require-tions A36/A36M,A572/A572M,A992/A992M,A588/ments and the reporting of additional test results,of Specifi-A 588M,A 514/A 514M,and A 514/A 514M,respectively.cation A 6/A 6M apply.When the supplementary requirements of this specification arespecified,they exceed the requirements of Specifications A 36/2.Referenced DocumentsA36M.A572/A572M.A992/A992M.A588/A588M.and2.1 ASTM Standards:2A514/A514M.A 6/A 6M Specification for General Requirements for1.1.2 Grades 50W [345W],HPS 50W [HPS 345W],HPSRolled Structural Steel Bars,Plates,Shapes,and Sheet70W [HPS 485W],100W [690W],and HPS 100W [HPSPiling690W]have enhanced atmospheric corrosion resistance (seeA 36/A 36M Specification for Carbon Structural Steel14.1.2).Product availability is shown in Table 1.A 370 Test Methods and Definitions for Mechanical Testing1.2 Grade HPS 70W [HPS 485W],100 [690],100Wof Steel Products[690W],or HPS 100W [HPS 690W]shall not be substitutedA 514/A 514M Specification for High-Yield-Strength,for Grades36[250l,50[345,50S[345S,50W[345W],orQuenched