1、Designation: A 514/A514M 05American Association State Highway and Trans-portation Officials Standard AASHTO No.: M 244Standard Specification forHigh-Yield-Strength, Quenched and Tempered Alloy SteelPlate, Suitable for Welding1This standard is issued under the fixed designation A 514/A514M; the numbe
2、r immediately following 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 stan
3、dard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers quenched and tempered alloysteel plates of structural quality in thicknesses of 6 in. 150mm and under intended primarily for use in welded bridgesand other structures.NOTE 1All grades are n
4、ot available in a maximum thickness of 6 in.150 mm. See Table 1 for thicknesses available in each grade.1.2 If 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
5、 for information on weldability.1.3 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system is tobe used independently of t
6、he other, without combining valuesin any way.2. Referenced Documents2.1 ASTM Standards:2A 6/A 6M Specification for General Requirements forRolled Structural Steel Bars, Plates, Shapes, and SheetPilingA 370 Test Methods and Definitions for Mechanical Testingof Steel Products3. General Requirements fo
7、r Delivery3.1 Plates furnished under this specification shall conformto the applicable requirements of the current edition of Speci-fication A 6/A 6M unless a conflict exists in which case thisspecification shall prevail.4. Materials and Manufacture4.1 The steel shall be killed and conform to the re
8、quire-ments for fine austenitic grain size in Specification A 6/A 6M.5. Heat Treatment5.1 Except as allowed by 5.2, plates shall be heat treated toconform to the tensile and hardness requirements given inTable 2 by heating to not less than 1650F 900C, quenchingin water or oil, and tempering at not l
9、ess than 1150F 620C.The heat-treatment temperatures shall be reported in the testreport.5.2 Plates ordered without the heat treatment specified in5.1 shall be stress relieved by the manufacturer, and subsequentheat treatment of the plates to conform to 5.1 shall be theresponsibility of the purchaser
10、.6. Chemical Composition6.1 The heat analysis shall conform to the requirementsgiven in Table 1.6.2 The product analysis shall conform to the requirementsgiven in Table 1, subject to the product analysis tolerances inSpecification A 6/A 6M.7. Mechanical Properties7.1 Tension TestThe plates as repres
11、ented by the tensiontest specimens shall conform to the tensile requirements givenin Table 2.7.2 Hardness TestFor plates38 in. 10 mm and under inthickness, a Brinell hardness test may be used instead oftension testing each plate, in which case a tension test shall bemade from a corner of each of two
12、 plates per lot. A lot shallconsist of plates from the same heat, thickness, prior condition,and scheduled heat treatment and shall not exceed 15 tons 15Mg in weight mass. A Brinell hardness test shall be made oneach plate not tension tested and the results shall conform tothe hardness requirements
13、given in Table 2.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel, and Related Alloys and is the direct responsibility of SubcommitteeA01.02 on Structural Steel for Bridges, Buildings, Rolling Stock, and Ships.Current edition approved Sept. 1, 2005. Publis
14、hed October 2005. Originallyapproved in 1964. Last previous edition approved in 2000 as A 514/A 514M 00a.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standar
15、ds 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 Conshohocken, PA 19428-2959, United States.8. Number of Tests8.1 Except as allowed by 7.2, one tension test shall be t
16、akenfrom a corner of each plate as heat treated.9. Retest9.1 Plates that were subjected to Brinell hardness testingand failed to conform the specified hardness requirements maybe subjected, at the manufacturers option, to tension testingand shall be accepted if the results conform to the tensilerequ
17、irements given in Table 2.9.2 The manufacturer may re-heat treat plates that fail tomeet the mechanical property requirements of this specifica-tion. All mechanical property tests shall be repeated after suchheat treatment.10. Test Specimens10.1 If possible, all test specimens shall be cut from thep
18、late in its heat-treated condition. If it is necessary to preparetest specimens from separate pieces, such pieces shall be fullthickness, and shall be similarly and simultaneously heattreated with the plate. All such separate pieces shall be of sucha size that the prepared test specimens are free of
19、 any variationin properties due to edge effects.10.2 If specified in the purchase order, the test pieces shallbe subjected to additional thermal treatments intended tosimulate thermal treatments that subsequently might be doneby the fabricator.11. Keywords11.1 alloy; bridges; high-yield-strength; pl
20、ates; quenched;steel; structural steel; tempered; welded constructionTABLE 1 Chemical Requirements (Heat Analysis)NOTE 1Where “. . .” appears in this table, there is no requirement.Chemical Composition, %Grade A Grade B Grade E Grade F Grade H Grade P Grade Q Grade SMaximum Thickness, in. mmElement
21、114 32 114 32 6 150 212 65 2 50 6 150 6 150 212 65Carbon 0.150.21 0.120.21 0.120.20 0.100.20 0.120.21 0.120.21 0.140.21 0.110.21Manganese 0.801.10 0.701.00 0.400.70 0.601.00 0.951.30 0.450.70 0.951.30 1.101.50Phosphorus, max 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035Sulfur, max 0.035 0.035 0.03
22、5 0.035 0.035 0.035 0.035 0.020Silicon 0.400.80 0.200.35 0.200.40 0.150.35 0.200.35 0.200.35 0.150.35 0.150.45Nickel . . . 0.701.00 0.300.70 1.201.50 1.201.50 .Chromium 0.500.80 0.400.65 1.402.00 0.400.65 0.400.65 0.851.20 1.001.50 .Molybdenum 0.180.28 0.150.25 0.400.60 0.400.60 0.200.30 0.450.60 0.
23、400.60 0.100.60Vanadium . 0.030.08A0.030.08 0.030.08 . 0.030.08 0.06Titanium . 0.010.04 0.010.10 . . . .BZirconium 0.050.15C. . . . . . .Copper . . . 0.150.50 . . . .Boron 0.0025 max 0.00050.005 0.0010.005 0.00050.006 0.00050.005 0.0010.005 . 0.0010.005Columbium, max . . . . . . . 0.06AMay be substi
24、tuted for part or all of titanium content on a one for one basis.BTitanium may be present in levels up to 0.06 % to protect the boron additions.CZirconium may be replaced by cerium. When cerium is added, the cerium/sulfur ratio should be approximately 1.5 to 1, based upon heat analysis.TABLE 2 Tensi
25、le and Hardness RequirementsNOTE 1 See the Orientation and Preparation subsections in the Tension Tests section of Specification A 6/A 6M.NOTE 2Where “. . . appears in this table there is no requirement.Thickness, in. mm Tensile Strength,ksi MPaYield Strength, minA,ksi MPaElongation in 2in. 50 mm,mi
26、nBCD,%Reductionof Area,minBC,%BrinellHardnessNumberETo34 20, incl 110 to 130 760 to 895 100 690 18 40F235 to 293 HBWOver34 20 to 212 65, incl 110 to 130 760 to 895 100 690 18 40F,50G.Over 212 65 to 6 150, incl 100 to 130 690 to 895 90 620 16 50G.AMeasured at 0.2 % offset or 0.5 % extension under loa
27、d as described in the Determination of Tensile Properties section of Test Methods and Definitions A 370.BElongation and reduction of area need not be determined for floor plates.CFor plates tested in the transverse direction, the elongation requirement is reduced by two percentage points and the red
28、uction of area minimum requirement is reducedby five percentage points. See elongation requirement adjustments in the Tension Tests section of Specification A 6/A 6M.DIf measured on the Fig. 3 (Test Methods and DefinitionsA 370)112-in. 40-mm wide tension test specimen, the elongation is determined i
29、n a 2-in. 50-mm gage lengththat includes the fracture and shows the greatest elongation.ESee 7.2.FIf measured on the Fig. 3 (Test Methods and Definitions A 370)112-in. 40-mm wide tension test specimen.GIf measured on the Fig. 4 (Test Methods and Definitions A 370)12-in. 12.5-mm round tension test sp
30、ecimen.A 514/A514M 052SUPPLEMENTARY REQUIREMENTSSupplementary requirements 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 /A 6M. Those that are considered suitable for use
31、with this specification are listed bytitle:S5. Charpy V-Notch Impact Test S8. Ultrasonic ExaminationSUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A 514/A 514 M 00a) that may impact the use of this standard.(1) Section 5.2 was ad
32、ded.(2) Tables 1 and 2 were revised.(3) A supplementary requirements section was added.(4) Section 4.1 was revised.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly ad
33、vised 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 at any time by the responsible technical committee and must be reviewed every five years andif not revised, eithe
34、r 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 comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend.
35、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 copyrighted 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-mail); or through the ASTM website(www.astm.org).A 514/A514M 053
