ASTM A709/A709M-21
Standard Specification for Structural Steel for Bridges

Standard No.

ASTM A709/A709M-21

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A709/A709M-21

Scope

1.1 This specification covers carbon and high-strength lowalloy steel structural shapes, plates, and bars, quenched and tempered alloy steel, and stainless steel for structural plates intended for use in bridges. Twelve grades are available in five yield strength levels as follows: Grade U.S. [SI] Yield Strength, ksi [MPa] 36 [250] 36 [250] 50 [345] 50 [345] 50S [345S] 50 [345] QST 50 [QST 345] 50 [345] QST 50S [QST 345S] 50 [345] 50W [345W] 50 [345] HPS 50W [HPS 345W] 50 [345] 50CR [345CR] 50 [345] QST 65 [QST450] 65 [450] QST 70 [QST485] 70 [485] HPS 70W [HPS 485W] 70 [485] HPS 100W [HPS 690W] 100 [690] 1.1.1 Grades 36 [250], 50 [345], 50S [345S], 50W [345W], 50CR [345CR], QST 50 [QST 345], QST 50S [QST 345S], QST 65 [QST 450], and QST 70 [QST 485] are also included in Specifications A36/A36M, A572/A572M, A992/A992M, A588/A588M, A1010/A1010M (UNS S41003), and A913/ A913M respectively. When the requirements of Table 11 or Table 12 or the supplementary requirements of this specification are specified, they exceed the requirements of Specifications A36/A36M, A572/A572M, A992/A992M, A588/ A588M, A1010/A1010M (UNS S41003), and A913/A913M. Product availability is shown in Table 1. 1.1.2 Grades 50W [345W], 50CR [345CR], HPS 50W [HPS 345W], HPS 70W [HPS 485W], and HPS 100W [HPS 690W] have enhanced atmospheric corrosion resistance (see 13.1.2). Product availability is shown in Table 1. 1.2 Grade HPS 70W [HPS 485W] or HPS 100W [HPS 690W] shall not be substituted for Grades 36 [250], 50 [345], 50S [345S], 50W [345W], or HPS 50W [HPS 345W]. Grade 50W [345W], or HPS 50W [HPS 345W] shall not be substituted for Grades 36 [250], 50 [345] or 50S [345S] without agreement between the purchaser and the supplier. 1.3 When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability. 1.4 For structural products to be used as tension components requiring notch toughness testing, standardized requirements are provided in this standard, and they are based upon American Association of State Highway and Transportation Officials (AASHTO) requirements for both fracture critical and non-fracture critical members. 1.5 Supplementary requirements are available but shall apply only if specified in the purchase order. 1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.7 For structural products produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A6/A6M apply. 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.

ASTM A709/A709M-21 Referenced Document

• ASTM A1010/A1010M Standard Specification for Higher-Strength Martensitic Stainless Steel Plate, Sheet, and Strip*， 2024-03-01 Update
• ASTM A36/A36M Standard Specification for Carbon Structural Steel
• ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• ASTM A572/A572M Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel
• ASTM A588/A588M Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance
• ASTM A6/A6M Standard Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling*， 2024-03-01 Update
• ASTM A673/A673M Standard Specification for Sampling Procedure for Impact Testing of Structural Steel
• ASTM A913/A913M Standard Specification for High-Strength Low-Alloy Steel Shapes of Structural Quality, Produced by Quenching and Self-Tempering Process (QST)
• ASTM A992/A992M Standard Specification for Structural Steel Shapes*， 2022-09-01 Update
• ASTM G101 Standard Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels

ASTM A709/A709M-21 history

• 2021 ASTM A709/A709M-21 Standard Specification for Structural Steel for Bridges
• 2018 ASTM A709/A709M-18 Standard Specification for Structural Steel for Bridges
• 2017 ASTM A709/A709M-17e1 Standard Specification for Structural Steel for Bridges
• 2017 ASTM A709/A709M-17 Standard Specification for Structural Steel for Bridges
• 2016 ASTM A709/A709M-16a Standard Specification for Structural Steel for Bridges
• 2016 ASTM A709/A709M-16 Standard Specification for Structural Steel for Bridges
• 2015 ASTM A709/A709M-15 Standard Specification for Structural Steel for Bridges
• 2013 ASTM A709/A709M-13a Standard Specification for Structural Steel for Bridges
• 2013 ASTM A709/A709M-13 Standard Specification for Structural Steel for Bridges
• 2011 ASTM A709/A709M-11 Standard Specification for Structural Steel for Bridges
• 2010 ASTM A709/A709M-10 Standard Specification for Structural Steel for Bridges
• 2009 ASTM A709/A709M-09a Standard Specification for Structural Steel for Bridges
• 2009 ASTM A709/A709M-09 Standard Specification for Structural Steel for Bridges
• 2008 ASTM A709/A709M-08 Standard Specification for Structural Steel for Bridges
• 2007 ASTM A709/A709M-07 Standard Specification for Structural Steel for Bridges
• 2006 ASTM A709/A709M-06a Standard Specification for Structural Steel for Bridges
• 2006 ASTM A709/A709M-06 Standard Specification for Structural Steel for Bridges
• 2005 ASTM A709/A709M-05 Standard Specification for Structural Steel for Bridges
• 2004 ASTM A709/A709M-04ae1 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2004 ASTM A709/A709M-04a Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2004 ASTM A709/A709M-04 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2003 ASTM A709/A709M-03a Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2003 ASTM A709/A709M-03 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2001 ASTM A709/A709M-01be3 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2001 ASTM A709/A709M-01be2 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2001 ASTM A709/A709M-01be1 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2001 ASTM A709/A709M-01b Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2001 ASTM A709/A709M-01a Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2001 ASTM A709/A709M-01 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2000 ASTM A709/A709M-00a Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges
• 2000 ASTM A709/A709M-00 Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges