ASTM-A709 › Standard Specification for Structural Steel for Bridges
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
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[345W] | 50 [345] |
HPS 50W [HPS 345W] | 50 [345] |
HPS 70W [HPS 485W] | 70 [485] |
100 [690] | 100 [690] |
100W [690W] | 100 [690] |
1.1.1 Grades 36 [250], 50 [345], 50S [345W], 100 [690], and 100W [690W] are also included in Specifications A 36/A 36M, A 572/A 572M, A 992/A 992M, A 588/A 588M, and A 514/A 514M, respectively. When the supplementary requirements of this specification are specified, they exceed the requirements of Specifications A 36/A 36M, A 572/A 572M, A 992/A 992M, A 588/A 588M, and A 514/A 514M.
1.1.2 Grades 50W [345W], HPS 50W [HPS 345], HPS 70W [HPS 485W], and 100W [690W] have enhanced atmospheric corrosion resistance (see 11.1.2). Product availability is shown in .
1.2 Grade HPS 70W [HPS 485W], 100 [690], or 100W [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 A 6/A 6M for information on weldability.
1.4 Supplementary requirements are available but shall apply only when specified by the purchaser at the time of ordering.
1.5 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.
1.6 For structural products cut from coiled product, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A 6/A 6M apply.
Keywords
alloy; atmospheric corrosion resistance; bars; bridges; carbon; high-strength; low-alloy; plates; quenched; shapes; steel; structural steel; tempered; ICS Number Code 77.140.10 (Heat-treatable steels)
To find similar documents by ASTM Volume:
01.04 (Steel--Structural, Reinforcing, Pressure Vessel, Railway)
To find similar documents by classification:
77.140.10 (Heat-treatable steels)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Customers who bought this document also bought:
ASTM-A564Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
MS-51840
Plug, Machine Thread, O-Ring
QQ-N-286
Nickel-Copper-Aluminum Alloy, Wrought (Uns N05500)
Document Number
ASTM-A0709_A0709M-21
Revision Level
2021 EDITION
Status
Current
Modification Type
Revision
Publication Date
Nov. 12, 2021
Document Type
Specification
Page Count
9 pages
Committee Number
A01.02