• AASHTO M270 Steel - Grade 50, 50W Leeco Steel, LLC

    AASHTO has its own set of specifications for plate steel used in bridges the M270 steel plate is the same as the ASTM 709 there are times when AASHTO are required. Our AASHTO steel plates are utilized for bridge construction.

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  • aashto m270 plate-Grade 36, 50, 50WHSLA plate-Triton

    aashto m270 plate Application Industries; Available Plate Stock; Our Global Network; Triton Alloys Inc. is a aashto m270 plate stockholders and suppliers, delivering to the whole of the world.we are ISO 9001:2008 accredited and supplies aashto m270 plate to internationally approved quality standards for …

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  • ASTM A572 Grade 50, Type 2 • A709 Grade 50 • AASHTO …

    ASTM A572 Grade 50, Type 2 • A709 Grade 50 • AASHTO M270. Used in Bridges, Buildings, Construction Equipment Machinery, Transmission Towers, Truck Parts, Towers, and Freight Cars. It is a higher yield and tensile strength than A36. Most of our stock is already charpy impact tested and suitable for galvanization. High Strength, Low Alloy Plate.

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  • Steel Bridges - Steel - Structures - Bridges & Structures ...

    T 5140.32 Inspection of Fracture Critical Bridges Fabricated from AASHTO M270 Grade 100 (ASTM A514/A517) Steel; T 5140.4 Tied Arch Bridges; Memos. Use of Electroslag Welding in Highway Bridges and Structures (05/10/2018) Use of High Strength Fasteners in Highway Bridges (12/01/2017) Clarification of Requirements for Fracture Critical Members ...

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  • Steel Plate for Bridges - EVRAZ North America

    United States that meets the requirements of AASHTO specification M270, ASTM A709 and customized structural plate specifications. Our plate mills are capable of producing plate from 0.375 inches to 5.0 inches, up to 152 inches wide and up to 1100 inches long. Specific dimensional requirements can be customized. Steel Plate for Bridges

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  • AASHTO M 270M/M 270 Standard Specification for ...

    AASHTO M 270M/M 270 2015 Edition, 2015. Complete Document Standard Specification for Structural Steel for Bridges. View Abstract Product Details Document History AASHTO M 270M/M 270 (Complete Document ) 2012 Edition, 2012. AASHTO M 270M/M 270 (Complete Document ...

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  • A709 Structural, Carbon & HSLA Steel Plate - Chapel Steel

    ASTM A709. The Charpy tests are specified as non-fracture critical, which is a per-heat test (frequency "H"), or fracture critical, which is a per-plate test (Frequency "P"). Bridge steels can also be ordered to the ASSHTO M270 Specification referenced as AASHTO M270 Grade 36, AASHTO M270 Grade 50, AASHTO M270 Grade 50W.

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  • GUIDE SPECIFICATION FOR - steel

    using ASTM A709 or AASHTO M270, Grade HPS 70W (HPS 485W) steel, referred to hereinafter as HPS 70W. The HPS Fab Guide is recommended for use until such time that other industry codes and specifications have included this product and have provided the necessary regulatory provisions to successfully fabricate bridges. The 2nd Edition is based on ...

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  • Structural Steel Specification - Codes and standards ...

    Mar 01, 2011 · Thanks for the responses. I've heard the misperceptions in the past and vaguely recall reading that the AASHTO M270 was "prequalified" for charpy and weldability while the ASTM A709 was not??? However, everytime you see a reference to bridge structural steel, you'll see AASHTO M270/ASTM A709 which to me means they are one in the same.

    I don't have my steel book near me but I'm pretty sure they are the same. It's just aashto's designation/equivalent. The A709 is included since it requires the charpy test where as A588 doesn't.They are the same. Word for word, except for whether metric or English units are primary. The only potential difference is that AASHTO M 270 follows the changes in ASTM A 709, and AASHTO ballots once a year while ASTM ballots whenever they feel like it, so M 270 might be a version or two behind A 709. Also since AASHTO uses the same words but doesn't directly republish the document, there is always the possibility that the person who edits the M 270 document might introduce some typos when transcribing the changes made by ASTM. (Can you tell I am not a fan of M 270? I tried for years to get them to just get rid of it and go direct to ASTM A 709, but turf is turf.) Until a few years ago, the words were not exactly the same, but the meaning was the same. The common misperception was that ASTM did not specify Charpy testing while AASHTO did, and perhaps this is still the misperception, but it was not correct then and it is not correct now. The reason for the misperception was that AASHTO put the requirement in the body of the spec ("For tension members, specify Supplemental Requirement S83") whereas ASTM put it in the supplemental requirement itself ("this supplemental requirement shall apply to tension members"). Then people got tired of the confusion and changed the specs so they were both the same. And they will remain the same until the AASHTO committee goes back to being lazy about keeping up with ASTM and then M 270 will be two years behind A 709 again. More of an answer than you wanted. Hg Eng-Tips policies FAQ731-376 Eng-Tips Forum Policies1Aw come on HgTX...don't sugar coat it!!Thanks for the responses. I've heard the misperceptions in the past and vaguely recall reading that the AASHTO M270 was "prequalified" for charpy and weldability while the ASTM A709 was not??? However, everytime you see a reference to bridge structural steel, you'll see AASHTO M270/ASTM A709 which to me means they are one in the same.AASHTO TESTING - Civil/Environmental engineering general ...ASTM A572 Grade 50 vs ASTM 1011 CS - ASTM (testing ...See more results

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  • Steel Plate for Bridges - EVRAZ North America

    United States that meets the requirements of AASHTO specification M270, ASTM A709 and customized structural plate specifications. Our plate mills are capable of producing plate from 0.375 inches to 5.0 inches, up to 152 inches wide and up to 1100 inches long. Specific dimensional requirements can be customized. Steel Plate for Bridges

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  • GUIDE SPECIFICATION FOR - steel

    using ASTM A709 or AASHTO M270, Grade HPS 70W (HPS 485W) steel, referred to hereinafter as HPS 70W. The HPS Fab Guide is recommended for use until such time that other industry codes and specifications have included this product and have provided the necessary regulatory provisions to successfully fabricate bridges. The 2nd Edition is based on ...

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  • ASTM A709 Steel Plate - Grade 36, 50, 50W Leeco Steel, LLC

    A709 Steel Plate. ASTM A709 steel plate is primarily used in the manufacture of bridges. Leeco Steel stocks A709 steel plate Grade 36, 50 and 50W. These grades are often specified with charpy tests referencing the specific zone, or climatic region, in which the bridge will be in …

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  • Uncoated Weathering Steel in Structures - Structures ...

    The additional cost of this grade of steel is offset by theelimination of the need for initial painting of the structure. These steels are currently supplied under American Association of State Highway and Transportation Officials (AASHTO) Specification M270 (ASTM A709 with grades 50, …

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  • 751.3 Structural Steel Design Properties - Engineering ...

    All structural steel will be AASHTO M270/ASTM A709 Grade 36 ( = 36 ksi) or Grade 50 ( = 50 ksi) except where weathering steel (AASHTO M270/ASTM A709 Grade 50W steel) is indicated on the Design Layout or in special cases. See Project Manager for use of structural steel with greater than 50 ksi. Available Material. Grade. Minimum Yield Strength, (ksi)

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  • 705 - STRUCTURAL STEEL FABRICATION SECTION 705 …

    be substituted for ASTM A709 Grade 36 or Grade 50, and AASHTO M270 Grade 50WT2 may be substituted for AASHTO M270 Grade 50T2. When substituting weathering steel for the structural steel shown in the Contract Documents, use the same size plate or rolled member. ... 705 - STRUCTURAL STEEL FABRICATION . ...

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  • AASHTO M 270M/M 270-15 - Techstreet

    AASHTO M 270M/M 270-15 Standard Specification for Structural Steel for Bridges (ASTM Designation A 709/A 709M-13a) standard by American Association of State and Highway Transportation Officials, 2015. View all product details

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  • Bridge Welding Code - American Welding Society

    Unless otherwise specified, base metals to be welded under this code shall meet the requirements of the latest edition of AASHTO M270M (M270) (ASTM A 709M [A 709]) for the grade of steel shown on the plans or described in the specifications. All Grade 345 (50) …

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  • SECTION 7 - STRUCTURAL STEEL - New York State …

    SECTION 7 STRUCTURAL STEEL 7-1 SECTION 7 - STRUCTURAL STEEL. 7.1 - STRUCTURAL STEEL TYPES. Table 7.1 on the following page lists the current steel types allowed by the Thruway Authority for structural applications on bridges. Prices for these different steel types are generally similar but increase slightly with strength.

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  • Status of AASHTO Materials Standards and Test …

    Status of AASHTO Materials Standards and Test Methods—August 2017 This document shows all materials specifications, practices, and test methods that have been published as part of the AASHTO Standard Specifications for Transportation Materials and Methods of Sampling and Testing from its first publication in 1931 through the most recent edition.

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  • Field Manual For Structural Welding - michigan.gov

    Michigan Department of Transportation. Prepared By. 1st Edition - March 2017. Field Manual for . Structural Welding. Bridges and Structures . Research Center of Excellence

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  • Appendix B STRUCTURAL STEEL NOTES - Connecticut

    “Structural Steel (Low Alloy) shall conform to AASHTO M270, Grade 50 WT2” For Fracture Critical bridge members use one of the following notes “Structural Steel (Low Alloy) shall conform to AASHTO M270, Grade 50 F2” “Structural Steel (Low Alloy) shall conform to AASHTO M270, Grade 50 WF2” Where corrosion resistant steel is required:

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  • a709 grade 50 platehigh strength steel plate-Triton ...

    Bridge steels can also be ordered to the ASSHTO M270 Spec referenced as AASHTO M270 Grade 36, AASHTO M270 Grade 50, AASHTO M270 Grade 50W. AASHTO is the abbreviation for American Association of State Highway and Transportation Officials . all measurements in inches. THICKNESS. WIDTH. LENGTH.

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  • GUARDRAIL ANCHOR ASSEMBLY DETAILS - Connect …

    conform to the requirements of aashto m291. bolts, nuts and washers shall bolts shall conform to the requirements of astm a307 and nuts shall with aashto m111. fabrication, the hold-down plate shall be hot-dip galvanized in accordance the hold-down plate shall conform to aashto m270 grade 36. after 7 - ‡'' ~ bolts with nuts and washers.

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