1、Designation: A 690/A 690M 07Standard Specification forHigh-Strength Low-Alloy Nickel, Copper, Phosphorus SteelH-Piles and Sheet Piling with Atmospheric CorrosionResistance for Use in Marine Environments1This standard is issued under the fixed designation A 690/A 690M; the number immediately followin
2、g the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved
3、 for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers high-strength low-alloy nickel,copper, phosphorus steel H-piles and sheet piling of structuralquality for use in the construction of dock walls, sea walls,bulkheads, excavations, and like applications in marine
4、envi-ronments.1.2 The atmospheric corrosion resistance of this steel issubstantially better than that of ordinary carbon steels with orwithout copper addition (see Note 1). The steel has also shownto have substantially greater resistance to seawater “SplashZone” corrosion than ordinary carbon steel
5、(SpecificationsA 36/A 36M and A 328/A 328M) where exposed to the wash-ing action of rain and the drying action of the wind or sun, orboth. Where the steel is not boldly exposed, the usual provi-sions for the protection of ordinary carbon steel should beconsidered.NOTE 1For methods of estimating atmo
6、spheric corrosion resistanceof low-alloy steels, see Guide G 101.1.3 When the steel is to be welded, it is presupposed that awelding procedure suitable for the grade of steel and intendeduse or service will be utilized. See Appendix X 3 of Specifi-cation A 6/A 6M for information on weldability.1.4 T
7、he values stated in either inch-pound units or SI unitsare to be regarded as standard. Within the text, the SI units areshown in brackets. The values stated in each system are notexact equivalents; therefore, each system must be used inde-pendently of the other. Combining values from the two systems
8、may result in nonconformance with the specification.2. Referenced Documents2.1 ASTM Standards:2A 6/A 6M Specification for General Requirements forRolled Structural Steel Bars, Plates, Shapes, and SheetPilingA 36/A 36M Specification for Carbon Structural SteelA 328/A 328M Specification for Steel Shee
9、t PilingG 101 Guide for Estimating the Atmospheric CorrosionResistance of Low-Alloy Steels3. General Requirements for Delivery3.1 Structural products furnished under this specificationshall conform to the requirements of the current edition ofSpecification A 6/A 6M, for the specific structural produ
10、ctordered, unless a conflict exists in which case this specificationshall prevail.3.2 Coils are excluded from qualification to this specifica-tion until they are processed into a finished structural product.Structural products produced from coil means structural prod-ucts that have been cut to indiv
11、idual lengths from a coil. Theprocessor directly controls, or is responsible for, the operationsinvolved in the processing of a coil into finished structuralproduct. Such operations include decoiling, leveling orstraightening, hot-forming or cold-forming (if applicable),cutting to length, testing, i
12、nspection, conditioning, heat treat-ment (if applicable), packaging, marking, loading for shipment,and certification.NOTE 2For structural products produced from coil and furnishedwithout heat treatment or with stress relieving only, two test results are tobe reported for each qualifying coil. Additi
13、onal requirements regardingstructural products produced from coil are described in SpecificationA 6/A 6M.4. Materials and Manufacture4.1 The steel shall be semi-killed or killed.5. Chemical Composition5.1 The heat analysis shall conform to the requirementsprescribed in Table 1.5.2 The steel shall co
14、nform on product analysis to therequirements prescribed in Table 1, subject to the productanalysis tolerances in Specification A 6/A 6M.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.
15、02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.Current edition approved March 1, 2007. Published March 2007. Originallyapproved in 1974. Last previous edition approved in 2005 as A 690/A 690M 05.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact A
16、STM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Cons
17、hohocken, PA 19428-2959, United States.5.3 Choice and use of alloying elements, combined with thelisted element requirements prescribed in 5.1 to give themechanical properties prescribed in Section 6.1, shall be madeby the manufacturer and included and reported in the heatanalysis of the steel.5.4 W
18、hen specified in the purchaser order or contract, theatmospheric corrosion resistance index, calculated on the basisof the heat analysis of the steel, as described in section 6.3.2 ofGuide G 101, shall be determined, the minimum index valueshall be by agreement between purchaser and manufacturer.NOT
19、E 3The user is cautioned that the Guide G 101 section 6.3.1predictive equation (predictive method based upon the data of Larabee andCoburn) is not applicable to this steel, due to composition limits listed forthis method.6. Tension Test6.1 The material, as represented by the test specimens, shallcon
20、form to the requirements as to tensile properties prescribedin Table 2.7. Keywords7.1 bulkheads; corrosion resistance; dock walls; excava-tions; high-strength; H-piles; low-alloy; marine environments;sea walls; sheet piling; steel; structural steelSUPPLEMENTARY REQUIREMENTSSupplementary requirements
21、 shall not apply unless specified in the purchase order or contract.Standardized supplementary requirements for use at the option of the purchaser are listed inSpecification A 6/A 6M. In addition, the following supplementary requirement is also suitable for usewith this specification.S99. The minimu
22、m strength of the interlocked joint requiredfor certain services may be specified for certain sheet pilingsections subject to specific agreement between the materialpurchaser and the manufacturer.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since t
23、he last issue(A 690/A 690M 05) that may impact the use of this standard. (Approved March 1, 2007.)(1) Deleted unnecessary references from 2.(2) Deleted Section 4 Appurtenant Materials.(3) Deleted Table 1 on Appurtenant Materials.ASTM International takes no position respecting the validity of any pat
24、ent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision
25、 at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comm
26、ents will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighte
27、d by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-m
28、ail); or through the ASTM website(www.astm.org).TABLE 1 Chemical RequirementsElementComposition, % HeatAnalysisCarbon, max 0.22ManganeseA0.600.90Phosphorus 0.080.15Sulfur, max 0.04Silicon, max 0.40Copper, min 0.50Nickel 0.400.75AManganese, for each reduction of 0.01 percentage point below the specif
29、iedcarbon maximum, an increase of 0.06 percentage points manganese above thespecified maximum is permitted, up to a maximum of 1.10 %.TABLE 2 Tensile RequirementsTensile strength, min, ksi MPa 70 485Yield point, min, ksi MPa 50 345Elongation in 8 in. 200 mm, min, % 18AElongation in 2 in. 50 mm, min, % 21ASee elongation requirement adjustments under the Tension Tests section ofSpecification A6/A6M. See specimen orientation under the tension tests sectionof Specification A6/A6M.A 690/A 690M 072
