Buy ASTM A709/A709M-13 in PDF & Print

Historical Revision

ASTM A709/A709M-13

Standard Specification for Structural Steel for Bridges

Secure PDF

$83.00

Bundle

$149.40

Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00

I have read and agree to the Terms & Conditions

Document Information

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.

TABLE 1 Tensile and Hardness Requirements^A

Note 1—Where “. . .” appears in this table, there is no requirement.

Grade	Plate Thickness, in. [mm]	Structural Shape Flange or Leg Thickness, in. [mm]	Yield Point or Yield Strength,^B ksi [MPa]	Tensile Strength, ksi [MPa]	Minimum Elongation, %				Reduc- tion of Area^C^,^D min, %
					Plates and Bars^C^,^E		Shapes^E
					8 in. or 200 mm	2 in. or 50 mm	8 in. or 200 mm	2 in. or 50 mm
36 [250]	to 4 [100], incl	to 3 in. [75 mm], incl	36 [250] min	58–80 [400–550]	20	23	20	21	...
		over 3 in. [75 mm]	36 [250] min	58 [400] min	...	..	20	19	...
50 [345]	to 4 [100], incl	all	50 [345] min	65 [450] min	18	21	18	21^F	...
50S [345S]	^G	all	50–65 [345–450]^H^I	65 [450]^H min	...	...	18	21	...
50W [345W] and HPS 50W [HPS 345W]	to 4 [100], incl	all	50 [345] min	70 [485] min	18	21	18	21^J	...
HPS 70W [HPS 485 W]	to 4 [100], incl	^G	70 [485] min^B	85–110 [585–760]	...	19^K	...	...	...
HPS 100W [HPS 690W]	to 2¹/₂ [65], incl	^G	100 [690] min^B	110–130 [760–895]	...	18^K	...	...	^L
	over 2¹/₂ to 4 [65 to 100], incl^M	^G	90 [620] min^B	100–130 [690–895]	...	16^K	...	...	^L

^A See specimen orientation and preparation subsection in the Tension Tests section of Specification A6/A6M.

^B Measured at 0.2 % offset or 0.5 % extension under load as described in Section 13 of Test Methods A370.

^C Elongation and reduction of area not required to be determined for floor plates.

^D For plates wider than 24 in. [600 mm], the reduction of area requirement, where applicable, is reduced by five percentage points.

^E For plates wider than 24 in. [600 mm], the elongation requirement is reduced by two percentage points. See elongation requirement adjustments in the Tension Tests section of Specification A6/A6M.

^F Elongation in 2 in. or 50 mm: 19 % for shapes with flange thickness over 3 in. [75 mm].

^G Not applicable.

^H The yield to tensile ratio shall be 0.87 or less for shapes that are tested from the web location; for all other shapes, the requirement is 0.85.

^I A maximum yield strength of 70 ksi [480 MPa] is permitted for structural shapes that are required to be tested from the web location.

^J For wide flange shapes with flange thickness over 3 in. [75 mm], elongation in 2 in. or 50 mm of 18 % minimum applies.

^K If measured on the Fig. 3 (Test Methods A370) 1¹/₂-in. [40–mm] wide specimen, the elongation is determined in a 2-in. or 50-mm gage length that includes the fracture and shows the greatest elongation.

^L 40 % minimum applies if measured on the Fig 3 (Test Methods A370) 1¹/₂-in. [40-mm] wide specimen; 50 % minimum applies if measured on the Fig. 4 (Test Methods A370) ¹/₂-in. [12.5-mm] round specimen.

^M Not applicable to Fracture Critical Tension Components (see Table 9).

TABLE 2 Grade 36 [250] Chemical Requirements (Heat Analysis)

Note 1—Where “. . .” appears in this table there is no requirement. The heat analysis for manganese shall be determined and reported as described in the Heat Analysis section of Specification A6/A6M.

Product Thickness, in. (mm)	Shapes^A All	Plates^B				Bars^B
Product Thickness, in. (mm)	Shapes^A All	To ³/₄ [20], incl	Over ³/₄ to 1¹/₂ [20 to 40], incl	Over 1¹/₂ to 2¹/₂ [40 to 65], incl	Over 2¹/₂ to 4 [65 to 100], incl	To ³/₄ [20], incl	Over ³/₄ to 1¹/₂ [20 to 40], incl	Over 1¹/₂ to 4 [100], incl

Carbon, max, %	0.26	0.25	0.25	0.26	0.27	0.26	0.27	0.28
Manganese, %	...	...	0.80–1.20	0.80–1.20	0.85–1.20	...	0.60–0.90	0.60–0.90
Phosphorus, max, %	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
Sulfur, max, %	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Silicon, %	0.40 max	0.40 max	0.40 max	0.15–0.40	0.15–0.40	0.40 max	0.40 max	0.40 max
Copper, min, % when copper steel is specified	0.20	0.20	0.20	0.20	0.20	0.20	0.20	0.20

^A Manganese content of 0.85 to 1.35 % and silicon content of 0.15 to 0.40 % is required for shapes with flange thickness over 3 in. [75 mm].

^B For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum will be permitted up to a maximum of 1.35 %.

TABLE 3 Grade 50 [345] Chemical Requirements^A (Heat Analysis)

					Silicon^C		Columbium, Vanadium and Nitrogen
Maximum Diameter, Thickness, or Distance Between Parallel Faces, in. [mm]	Carbon, max, %	Manganese,^B max, %	Phosphorus, max, %	Sulfur, max, %	Plates to 1¹/₂-in. [40-mm] Thick, Shapes with flange or leg thickness to 3 in. [75 mm] inclusive, Sheet Piling, Bars, Zees, and Rolled Tees, max, %^D	Plates Over 1¹/₂-in. [40-mm] Thick and Shapes with flange thickness over 3 in. [75 mm], %
4 [100]	0.23	1.35	0.04	0.05	0.40	0.15–0.40	^E
^A Copper when specified shall have a minimum content of 0.20 % by heat analysis (0.18 % by product analysis).
^B Manganese, minimum by heat analysis of 0.80 % (0.75 % by product analysis) shall be required for all plates over ³/₈ in. [10 mm] in thickness; a minimum of 0.50 % (0.45 % by product analysis) shall be required for plates ³/₈ in. [10 mm] and less in thickness, and for all other products. The manganese to carbon ratio shall not be less than 2 to 1. For each reduction of 0.01 percentage point below the specified carbon maximum, an increase of 0.06 percentage point manganese above the specified maximum is permitted, up to a maximum of 1.60 %.
^C Silicon content in excess of 0.40 % by heat analysis must be negotiated.
^D Bars over 1¹/₂ in. [40 mm] in diameter, thickness, or distance between parallel faces, shall be made by a killed steel practice.
^E Alloy content shall be in accordance with Type 1, 2, 3, or 5 and the contents of the applicable elements shall be reported on the test report.

Type	Elements	Heat Analysis, %
1	Columbium^A	0.005–0.05^B
2	Vanadium	0.01–0.15
3	Columbium^A Vanadium Columbium plus vanadium	0.005–0.05^B 0.01–0.15 0.02–0.15^C
5	Titanium Nitrogen Vanadium	0.006–0.04 0.003–0.015 0.06 max

^A Columbium shall be restricted to Grade 50 [345] plate, bar, zee, and rolled tee thickness of ³/₄ in. [20 mm] max, and to shapes with flange or leg thickness to 1¹/₂ in. [40 mm] inclusive unless killed steel is furnished. Killed steel shall be confirmed by a statement of killed steel on the test report, or by a report of the presence of a sufficient quantity of a strong deoxidizing element, such as silicon at 0.10 % or higher, or aluminum at 0.015 % or higher.

^B Product analysis limits = 0.004 to 0.06 %.

^C Product analysis limits = 0.01 to 0.16 %.

TABLE 4 Grade 50W [345 W] Chemical Requirements (Heat Analysis)

Note 1—Types A and B are equivalent to Specification A588/A588M, Grades A and B, respectively.

Element	Composition, %^A
Element	Type A	Type B

Carbon^B	0.19 max	0.20 max
Manganese^B	0.80–1.25	0.75–1.35
Phosphorus	0.04 max	0.04 max
Sulfur	0.05 max	0.05 max
Silicon	0.30–0.65	0.15–0.50
Nickel	0.40 max	0.50 max
Chromium	0.40–0.65	0.40–0.70
Copper	0.25–0.40	0.20–0.40
Vanadium	0.02–0.10	0.01–0.10

^A Weldability data for these types have been qualified by FHWA for use in bridge construction.

^B For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50 %.

TABLE 5 Grades HPS 50W [HPS 345W] and HPS 70W [HPS 485 W], and HPS 100W [HPS 690W] Chemical Requirements (Heat Analysis)

Note 1—Where “. . .” appears in this table, there is no requirement.

Element	Composition, %
Element	Grades HPS 50W [HPS 345W], HPS 70W [HPS 485W]	Grade HPS 100W [HPS 690W]
Carbon	0.11 max	0.08 max
Manganese
2.5 in. [65 mm] and under	1.10–1.35	0.95–1.50
Over 2.5 in. [65 mm]	1.10–1.50	0.95–1.50
Phosphorus	0.020 max	0.015 max
Sulfur^A	0.006 max	0.006 max
Silicon	0.30–0.50	0.15–0.35
Copper	0.25–0.40	0.90–1.20
Nickel	0.25–0.40	0.65–0.90
Chromium	0.45–0.70	0.40–0.65
Molybdenum	0.02–0.08	0.40–0.65
Vanadium	0.04–0.08	0.04–0.08
Columbium (Niobium)	. . .	0.01–0.03
Aluminum	0.010–0.040	0.020–0.050
Nitrogen	0.015 max	0.015 max

^A The steel shall be calcium treated for sulfide shape control.

TABLE 6 Grade 50S [345S] Chemical Requirements (Heat Analysis)

Element		Composition, %

	Carbon, max	0.23
	Manganese	0.50 to 1.60^A
	Silicon, max	0.40
	Vanadium, max	0.15^B
	Columbium, max	0.05^B
	Phosphorus, max	0.035
	Sulfur, max	0.045
	Copper, max	0.60
	Nickel, max	0.45
	Chromium, max	0.35
	Molybdenum, max	0.15

^A Provided that the ratio of manganese to sulfur is not less than 20 to 1, the minimum limit for manganese for shapes with flange or leg thickness not exceeding 1 in. [25 mm] shall be 0.30 %.

^B The sum of columbium and vanadium shall not exceed 0.15 %.

TABLE 7 Relationship Between Impact Testing Temperature Zones and Minimum Service Temperature

Zone	Minimum Service Temperature, °F [°C]

1	0	[−18]
2	below 0 to −30	[−18 to −34]
3	below −30 to −60	[−34 to −51]

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	May 1, 2013
Language	en - English
Page Count	8
Revision Level	13
Supercedes
Committee	A01.02

Publish Date	Document Id	Type
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

SDO	Document	Title
ASTM	F3125	Standard Specification for High Strength Structural Bolts, Steel and Alloy Steel, Heat Treated, 120 ksi (830 MPa) and 150 ksi (1040 MPa) Minimum Tensile Strength, Inch and Metric Dimensions
ASTM	F3148	Standard Specification for High Strength Structural Bolt Assemblies, Steel and Alloy Steel, Heat Treated, 144ksi Minimum Tensile Strength, Inch Dimensions
ASTM	A1076/A1076M	Standard Specification for Cold Formed Carbon Structural Steel Tubing Made from Metallic Precoated Sheet Steel
ASTM	F3125/F3125M	Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength
ASTM	A992/A992M	Standard Specification for Structural Steel Shapes
ASTM	A1057/A1057M	Standard Specification for Steel, Structural Tubing, Cold Formed, Welded, Carbon, Zinc-Coated (Galvanized) by the Hot-Dip Process
ASTM	A611	Standard Specification for Structural Steel (SS), Sheet, Carbon, Cold-Rolled (Withdrawn 2000)
ASTM	A131/A131M	Standard Specification for Structural Steel for Ships
ASTM	A1043/A1043M	Standard Specification for Structural Steel with Low Yield to Tensile Ratio for Use in Buildings
ASTM	A1077/A1077M	Standard Specification for Structural Steel with Improved Yield Strength at High Temperature for Use in Buildings
ASTM	A529	Standard Specification for Structural Steel With 42 000 Psi (290 Mpa) Minimum Yield Point (1/2 In. (12.7 Mm) Maximum Thickness)
ASTM	A573/A573M	Standard Specification for Structural Carbon Steel Plates
ASTM	A325	Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
ASTM	A325M	Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength [Metric]
ASTM	D5484	Standard Specification for Steel Grid Bridge Flooring (Withdrawn 2004)
ASTM	A1026	Standard Specification for Alloy Steel Structural Shapes for Use in Building Framing (Withdrawn 2007)
ASTM	A36/A36M	Standard Specification for Carbon Structural Steel
ASTM	A1113/A1113M	Standard Specification for Corrugated Steel Structural Plate, Polymer-Coated, for Field-Bolted Pipe, Pipe-Arches, and Arches
ASTM	A829/A829M	Standard Specification for Alloy Structural Steel Plates
ASTM	A761/A761M	Standard Specification for Corrugated Steel Structural Plate, Zinc-Coated, for Field-Bolted Pipe, Pipe-Arches, and Arches
ASTM	A502	Standard Specification for Rivets, Steel, Structural
ASTM	A1031/A1031M	Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-Rolled
ASTM	A1031	Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-Rolled
ASTM	A194/A194M	Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
ASTM	E1514	Standard Specification for Structural Standing Seam Steel Roof Panel Systems

ASTM A709/A709M-13

Standard Specification for Structural Steel for Bridges

Document Information

Terms of Service

Conditions of Use

Privacy Policy

Copyright

Communications

Privacy Policy

We use cookies

Manage Cookie Preferences

Essential Cookies Required (3 cookies)

Performance Cookies (2 cookies)