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ASTM A709/A709M-13a

Historical Revision

Standard Specification for Structural Steel for Bridges

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1.1 This specification covers carbon and high-strength low-alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates intended for use in bridges. Seven grades are available in four 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]    

      50W [345W]

 50 [345]    

      HPS 50W [HPS 345W]

 50 [345]    

      HPS 70W [HPS 485W]

 70 [485]    

      HPS 100W [HPS 690W]

100 [690]    


1.1.1 Grades 36 [250], 50 [345], 50S [345S], and 50W [345W] are also included in Specifications A36/A36M, A572/A572M, A992/A992M, and A588/A588M, respectively. When the requirements of Table 8 or Table 9 or the supplementary requirements of this specification are specified, they exceed the requirements of Specifications A36/A36M, A572/A572M, A992/A992M, and A588/A588M.

1.1.2 Grades 50W [345W], 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.


This specification covers carbon and high-strength low alloy steel structural shapes, plates and bars, and quenched and tempered alloy steel for structural plates intended for use in bridges. Heat analysis shall be used to determine the percentage of carbon, manganese, phosphorus, sulfur, silicon, and copper for the required chemical composition. A tension test shall be used to determine the required tensile properties such as tensile strength, yield strength, and elongation. Materials shall undergo: (1) an impact test for non-fracture critical and fracture critical members; and (2) a Brinell hardness test for Grades 100 and 100W. Atmospheric corrosion resistance shall also be determined.


SDO ASTM: ASTM International
Document Number A709
Publication Date Oct. 1, 2013
Language en - English
Page Count 7
Revision Level 13a
Supercedes
Committee A01.02
Publish Date Document Id Type View
Oct. 15, 2024 A0709_A0709M-24 Revision
Nov. 1, 2021 A0709_A0709M-21 Revision
Nov. 15, 2018 A0709_A0709M-18 Revision
Sept. 1, 2017 A0709_A0709M-17E01 Revision
Sept. 1, 2017 A0709_A0709M-17 Revision
May 1, 2016 A0709_A0709M-16A Revision
Feb. 15, 2016 A0709_A0709M-16 Revision
Sept. 1, 2015 A0709_A0709M-15 Revision
Oct. 1, 2013 A0709_A0709M-13A Revision
May 1, 2013 A0709_A0709M-13 Revision
May 1, 2011 A0709_A0709M-11 Revision
Sept. 1, 2010 A0709_A0709M-10 Revision
Oct. 1, 2009 A0709_A0709M-09A Revision
April 1, 2009 A0709_A0709M-09 Revision
Oct. 1, 2008 A0709_A0709M-08 Revision
March 1, 2007 A0709_A0709M-07 Revision
Sept. 1, 2006 A0709_A0709M-06A Revision
March 15, 2006 A0709_A0709M-06 Revision
April 1, 2005 A0709_A0709M-05 Revision
Sept. 1, 2004 A0709_A0709M-04AE01 Revision
Sept. 1, 2004 A0709_A0709M-04A Revision
April 1, 2004 A0709_A0709M-04 Revision
May 10, 2003 A0709_A0709M-03A Revision
April 10, 2003 A0709_A0709M-03 Revision
Oct. 10, 2001 A0709_A0709M-01BE03 Revision
Oct. 10, 2001 A0709_A0709M-01BE01 Revision
Oct. 10, 2001 A0709_A0709M-01B Revision
Oct. 10, 2001 A0709_A0709M-01A Revision
Oct. 10, 2001 A0709_A0709M-01 Revision
Oct. 10, 2001 A0709_A0709M-00A Revision
Oct. 10, 2001 A0709_A0709M-00 Revision
Oct. 10, 2001 A0709_A0709M-01BE02 Reaffirmation