1、Standard Specification for Steel Sheet Piling AASHTO Designation: M 202M/M 202-08 (2016) Release: Group 2 (June 2016) ASTM Designation: A328/A328M-07(2012) American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001TS-4f M 202M/M
2、 202-1 AASHTO Standard Specification for Steel Sheet Piling AASHTO Designation: M 202M/M 202-08 (2016) Release: Group 2 (June 2016) ASTM Designation: A328/A328M-07(2012) 1. SCOPE 1.1. This specification covers carbon steel sheet piling of structural quality for use in the construction of dock walls,
3、 sea walls, cofferdams, excavations, and like applications. 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. 1.2. This specification is applicable to orders in either SI units (as M 202M) or inch-
4、pound units (as M 202). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shown in brackets in the text for clarity, but they are the applicable values when the material is ordered to M 202. 1.3. For structural products cut from coiled product and furnished without h
5、eat treatment or with stress relieving only, the additional requirements of ASTM A6/A6M, including additional testing requirements and reporting of additional tests, apply. 2. REFERENCED DOCUMENTS 2.1. ASTM Standards: A6/A6M, Standard Specification for General Requirements for Rolled Structural Stee
6、l Bars, Plates, Shapes, and Sheet Piling A572/A572M, Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel 3. GENERAL REQUIREMENT FOR DELIVERY 3.1. Sheet piling furnished under this specification shall conform to the requirements of the current edition of ASTM A6/A6M
7、, for the specific sheet piling ordered, unless a conflict exists, in which case this specification shall prevail. 3.2. Coils are excluded from qualification to this specification until they are processed into finished sheet piling. Sheet piling produced from coil means sheet piling that has been cu
8、t to individual lengths from a coil. The processor directly controls, or is responsible for, the operations involved in the processing of a coil into finished sheet piling. Such operations include decoiling, leveling, hot forming or cold forming (if applicable), cutting to length, testing, inspectio
9、n, conditioning, heat treatment (if applicable), packaging, marking, loading for shipment, and certification. (See Note 1.) Note 1For sheet piling produced from coil and furnished without heat treatment or with stress relieving only, two test results are to be reported for each qualifying coil. Addi
10、tional requirements regarding sheet piling produced from coil are described in ASTM A6/A6M. 2016 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4f M 202M/M 202-2 AASHTO 4. PROCESS 4.1. The steel may be m
11、ade by any process that produces material meeting the requirements set forth in this specification. 5. CHEMICAL REQUIREMENTS 5.1. The heat analysis shall conform to the requirements prescribed in Table 1. Table 1Chemical Requirements Element Composition, %, Heat Analysis Phosphorus, max 0.035 Sulfur
12、, max 0.04 Copper (when specified), min 0.20 5.2. The steel shall conform on product analysis to the requirements prescribed in Table 1, subject to the product analysis tolerances in ASTM A6/A6M. 6. MECHANICAL REQUIREMENTS 6.1. The material, as represented by the test specimens, shall conform to the
13、 requirements as to tensile properties prescribed in Table 2. Table 2Tensile Requirements Tensile strength, min, MPa ksi 450 65aYield point, min, MPa ksi 270 39 Elongation in 200 mm 8 in., min, % 17bElongation in 50 mm 2 in., min, % 20 aPrior to M 202M/M 20205, the minimum tensile strength was 485 M
14、Pa 70 ksi. bSee Elongation Requirement Adjustment in the Tension Tests section of ASTM A6/A6M. See Specimen Orientation in the Tension Tests section of ASTM A6/A6M. 6.2. A minimum tensile strength of 415 MPa 60 ksi and a minimum yield point of 250 MPa 36 ksi shall be permitted for piling sections us
15、ed in the fabrication of cold-formed connections. SUPPLEMENTARY REQUIREMENTS The following supplementary requirement shall apply only when specified in the purchase order. S1. INTERLOCK STRENGTH S1.1 The minimum strength of the interlocked joint required for certain services may be specified for certain sheet-piling sections subject to specific agreement between the material purchaser and the manufacturer. 2016 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.
