1、Designation: A 572/A 572M 07American Association StateHighway and TransportationOfficals StandardAASHTO No.: M223Standard Specification forHigh-Strength Low-Alloy Columbium-Vanadium StructuralSteel1This standard is issued under the fixed designation A 572/A 572M; the number immediately following the
2、 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 for
3、use by agencies of the Department of Defense.1. Scope*1.1 This specification covers five grades of high-strengthlow-alloy structural steel shapes, plates, sheet piling, and bars.Grades 42 290, 50 345, and 55 380 are intended forriveted, bolted, or welded structures. Grades 60 415 and 65450 are inten
4、ded for riveted or bolted construction of bridges,or for riveted, bolted, or welded construction in other applica-tions.1.2 For applications, such as welded bridge construction,where notch toughness is important, notch toughness require-ments are to be negotiated between the purchaser and theproduce
5、r.1.3 Specification A 588/A 588M shall not be substituted forSpecification A 572/A 572M without agreement between thepurchaser and the supplier.1.4 The use of columbium, vanadium, titanium, nitrogen, orcombinations thereof, within the limitations noted in Section 5,is required; the selection of type
6、 (1, 2, 3, or 5) is at the optionof the producer, unless otherwise specified by the purchaser.(See Supplementary Requirement S90.)1.5 The maximum thicknesses available in the grades andproducts covered by this specification are shown in Table 1.1.6 When the steel is to be welded, a welding procedure
7、suitable for the grade of steel and intended use or service is tobe utilized. See Appendix X3 of Specification A 6/A 6M forinformation on weldability.1.7 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 brack
8、ets. The values stated in eachsystem are not exact equivalents; therefore, each system is tobe used independently of the other, without combining valuesin any way.1.8 The text of this specification contains notes or footnotes,or both, that provide explanatory material. Such notes andfootnotes, exclu
9、ding those in tables and figures, do not containany mandatory requirements.1.9 For structural products produced from coil and fur-nished without heat treatment or with stress relieving only, theadditional requirements, including additional testing require-ments and the reporting of additional tests,
10、 of A 6/A 6M apply.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 514/A 514M Specification for High-Yield-Strength,Quenched and Tempered A
11、lloy Steel Plate, Suitable forWeldingA 588/A 588M Specification for High-Strength Low-AlloyStructural Steel, up to 50 ksi 345 MPa Minimum YieldPoint, with Atmospheric Corrosion Resistance3. General Requirements for Delivery3.1 Structural products furnished under this specificationshall conform to th
12、e requirements of the current edition ofSpecification A 6/A 6M, for the specific structural productordered, 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 prod
13、uct.Structural products produced from coil means structural prod-ucts that have been cut to individual lengths from a coil. Theprocessor directly controls, or is responsible for, the operationsinvolved in the processing of a coil into a finished structuralproduct. Such operations include decoiling,
14、leveling orstraightening, hot-forming or cold-forming (if applicable),cutting to length, testing, inspection, conditioning, heat treat-ment (if applicable), packaging, marking, loading for shipment,and certification.NOTE 1For structural products produced from coil and furnishedwithout heat treatment
15、 or with stress relieving only, two test results are to1This 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 ed
16、ition approved March 1, 2007. Published March 2007. Originallyapproved in 1966. Last previous edition approved in 2006 as A 572/A 572M 06.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume
17、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 Conshohocken, PA 19428-2959, United States.be reported for each qualifying coil. Addi
18、tional requirements regardingstructural products produced from coil are described in A 6/A 6M.4. Materials and Manufacture4.1 The steel shall be semi-killed or killed5. Chemical Composition5.1 The heat analysis shall conform to the requirementsprescribed in Table 2 and Table 3.5.2 The steel shall co
19、nform on product analysis to therequirements prescribed in Table 2 and Table 3, subject to theproduct analysis tolerances in Specification A 6/A 6M.6. Mechanical Properties6.1 Tensile Properties:6.1.1 The material as represented by the test specimens shallconform to the tensile properties given in T
20、able 4.7. Test Reports7.1 In addition to the Test Reports requirements in Specifi-cation A 6/A 6M, when Specification A 588/A 588M is substi-tuted for Specification A 572/A 572M, the test report shallinclude the statement “Specification A 588/A 588M substi-tuted” and the heat analysis of all element
21、s required inSpecification A 588/A 588M.TABLE 1 Maximum Product Thickness or SizeGradeYield Point, min Maximum Thickness or SizeZees and RolledTeesksi MPaPlates and BarsStructural ShapeFlange or LegThicknessSheet Pilingin. mm in. mm42 290A42 290 6 150 all all all all50 345A50 345 4B100Ball all all a
22、ll55 380 55 380 2 50 all all all all60 415A60 415 114C32C2 50 all all65 450 65 450 114 32 2 50 not available allAIn the above tabulation, Grades 42, 50, and 60 290, 345, and 415, are the yield point levels most closely approximating a geometric progression pattern between36 ksi 250 MPa, min, yield p
23、oint steels covered by Specification A 36/A 36M and 100 ksi 690 MPa, min, yield strength steels covered by Specification A 514/A 514M.BRound bars up to and including 11 in. 275 mm in diameter are permitted.CRound bars up to and including 312 in. 90 mm in diameter are permitted.TABLE 2 Chemical Requi
24、rementsA(Heat Analysis)Diameter, Thickness,or DistanceBetween ParallelFaces, in. mmPlates and BarsStructuralShapeFlange orLegThickness,in. mmGradeCarbon,max, %Manganese,Bmax, %Phosphorus,max, %Sulfur,max,%SiliconPlates to 112 in. 40mm Thick,Shapes withFlange or LegThickness to 3 in.75 mm inclusive,S
25、heet Piling,Bars, Zees, andRolled TeesCPlates Over 112 in.40 mm Thick andShapes with FlangeThicknessOver 3 in.75 mmmax, % range, %6 150 all 42 290 0.21 1.35D0.04 0.05 0.40 0.150.404 100Eall 50 345 0.23 1.35D0.04 0.05 0.40 0.150.402 50Fall 55 380 0.25 1.35D0.04 0.05 0.40 0.15-0.40114 32F#2 50 60 415
26、0.26 1.35D0.04 0.05 0.40G12 114 1332 1-2 25-50 65 450 0.23 1.65 0.04 0.05 0.40G#12 13H# 1H65 450 0.26 1.35 0.04 0.05 0.40GACopper when specified shall have a minimum content of 0.20 % by heat analysis (0.18 % by product analysis).BManganese, minimum, by heat analysis of 0.80 % (0.75 % by product ana
27、lysis) shall be required for all plates over38 in. 10 mm in thickness; a minimum of 0.50 %(0.45 % by product analysis) shall be required for plates38 in. 10 mm and less in thickness, and for all other products. The manganese to carbon ratio shall not be lessthan2to1.CBars over 112 in. 40 mm in diame
28、ter, thickness, or distance between parallel faces shall be made by a killed steel practice.DFor each reduction of 0.01 percentage point below the specified carbon maximum, an increase of 0.06 percentage point manganese above the specified maximumis permitted, up to a maximum of 1.60 %.ERound bars u
29、p to and including 11 in. 275 mm in diameter are permitted.FRound bars up to and including 312 in. 90 mm in diameter are permitted.GThe size and grade is not described in this specification.HAn alternative chemical requirement with a maximum carbon of 0.21 % and a maximum manganese of 1.65 % is perm
30、itted, with the balance of the elements as shownin Table 2.A 572/A 572M 0728. Keywords8.1 bars; bolted construction; bridges; buildings;columbium-vanadium; high-strength; low-alloy; plates; rivetedconstruction; shapes; sheet piling; steel; structural steel;welded constructionSUPPLEMENTARY REQUIREMEN
31、TSSupplementary requirements shall not apply unless specified in the order or contract. Standardizedsupplementary requirements for use at the option of the purchaser are listed in SpecificationA6/A6M.Those that are considered suitable for use with this specification are listed by title:S5. Charpy V-
32、Notch Impact Test.S18. Maximum Tensile StrengthS30. Charpy V-Notch Impact Test for Structural Shapes: Alternate Core LocationS32. Single Heat Bundles.In addition, the following supplementary requirements are suitable for use:S81. Tensile StrengthS81.1 For Grade 50 345 steel of thicknesses34 in. 20mm
33、 and less, the tensile strength shall be a minimum of 70 ksi485 MPa.S90. TypeS90.1 The specific type of steel shall be as specified by thepurchaser in the order or contract.TABLE 3 Alloy ContentTypeAElementsHeatAnalysis, %1 ColumbiumB0.0050.05C2 Vanadium 0.010.153 ColumbiumBVanadiumColumbium plus va
34、nadium0.005-0.05C0.010.150.020.15D5 TitaniumNitrogenVanadium0.006-0.040.0030.0150.06 maxAAlloy content shall be in accordance with Type 1, 2, 3, or 5 and the contentsof the applicable elements shall be reported on the test report.BColumbium shall be restricted to the following thicknesses and sizes
35、unlesskilled steel is furnished. Killed steel shall be confirmed by a statement of killed steelon the test report, or by a report on the presence of a sufficient quantity of a strongdeoxidizing element, such as silicon at 0.10 % or higher, or aluminum at 0.015 %or higher. See table below.CProduct an
36、alysis limits = 0.004 to 0.06 %.DProduct analysis limits = 0.01 to 0.16 %.GradesMaximum Plate, Bar,SheetPiling, Zees, and RolledTee Thicknesses, in. mmMaximum StructuralShape Flange or LegThickness,in. mm42, 50, and 5534 1.5290, 345, and38020 4060 and 6512 1415 and 450 13 25TABLE 4 Tensile Requireme
37、ntsAGradeYield Point, min Tensile Strength, minMinimum Elonga-tion, %B,C,Dksi MPa ksi MPain8in.200 mmin2in.50 mm42 290 42 290 60 415 20 2450 345 50 345 65 450 18 2155 380 55 380 70 485 17 2060 415 60 415 75 520 16 1865 450 65 450 80 550 15 17ASee specimen Orientation under the Tension Tests section
38、of SpecificationA6/A6M.BElongation not required to be determined for floor plate.CFor wide flange shapes over 426 lb/ft 634 kg/m, elongation in 2 in. 50 mmof 19 % minimum applies.DFor plates wider than 24 in. 600 mm, the elongation requirement is reducedtwo percentage points for Grades 42, 50, and 5
39、5 290, 345, and 380, and threepercentage points for Grades 60 and 65 415 and 450. See elongation require-ment adjustments in the Tension Tests section of Specification A6/A6M.A 572/A 572M 073SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the la
40、st issue (A 572/A572M 06) that may impact the use of this standard. (Approved March 1, 2007.)(1) Added 1.3 and new Section 7.Committee A01 has identified the location of selected changes to this standard since the last issue (A 572/A 572M 04) thatmay impact the use of this standard. (Approved March
41、1, 2006.)(1) The maximum permitted manganese was changed from1.50 % to 1.60 % for grades 42, 50, 55, and 60 in Table 2.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 expressl
42、y 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 at any time by the responsible technical committee and must be reviewed every five years andif not revised, e
43、ither 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 atte
44、nd. 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 572/A 572M 074
