1、Designation: A1066/A1066M 11 (Reapproved 2015)1Standard Specification forHigh-Strength Low-Alloy Structural Steel Plate Produced byThermo-Mechanical Controlled Process (TMCP)1This standard is issued under the fixed designation A1066/A1066M; the number immediately following the designation indicates
2、theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEEditorial corrections were made to Table 1 in September
3、 2015.1. Scope1.1 This specification covers steel plates produced by thethermo-mechanical controlled process (TMCP). Five gradesare defined by the yield strength: 50 345, 60 415, 65 450,70 485, and 80 550. The plates are intended primarily foruse in welded steel structures.1.2 The TMCP method consis
4、ts of rolling reductions andcooling rate controls that result in mechanical properties in thefinished plate that are equivalent to those attained usingconventional rolling and heat treatment processes, which entailreheating after rolling. A description of the TMCP method isgiven in Appendix X1.1.3 T
5、he maximum thicknesses available in the grades cov-ered by this specification are shown in Table 1.1.4 Due to the special combination of mechanical andthermal treatment inducing lower rolling temperatures than forconventional hot rolling the plates can not be formed atelevated temperatures without s
6、ustaining significant losses instrength and toughness. The plates may be formed and post-weld heat-treated at temperatures not exceeding 1050F560C. Higher temperatures may be possible if proven thatminimum mechanical characteristics are retained after testswith specimens in the post-weld heat treatm
7、ent (PWHT)condition. For flame straightening higher temperatures can beused in accordance with the steel manufacturers recommen-dations.1.5 If the steel is to be welded, a welding procedure suitablefor the grade of steel and intended use or service is to beutilized. See Appendix X3 of Specification
8、A6/A6M forinformation on weldability.1.6 Supplementary requirements are available but shallapply only if specified in the purchase order.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 brackets. The valu
9、es stated in eachsystem are not exact equivalents; therefore, each system is tobe used independently of the other, without combining valuesin any way.2. Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars, Plates, Shapes, and Sheet Pi
10、lingA673/A673M Specification for Sampling Procedure for Im-pact Testing of Structural Steel3. General Requirements for Delivery3.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A6/A6M.4. Materials and Manufacture4.1 T
11、he steel shall be killed.4.2 The plates shall be produced by the thermo-mechanicalcontrolled process.5. Chemical Composition5.1 The chemical composition on heat analysis shall con-form to the requirements given in Table 1.5.2 The steel shall conform on product analysis to therequirements prescribed
12、in Table 1 subject to the productanalysis tolerances in Specification A6/A6M.5.3 The carbon equivalent on heat analysis shall not exceedthe limits listed in Table 2. The chemical analysis (heatanalysis) of the elements that appear in the carbon equivalent1This specification is under the jurisdiction
13、 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, 2015. Published September 2015. Originallyapproved in 2011. Last previous ed
14、ition approved in 2011 as A1066 11. DOI:10.1520/A1066_A1066M-11R15.2For 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 standards Document Summary page onthe ASTM we
15、bsite.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1formula and the actual carbon equivalent shall be reported. Forthe calculation of the carbon equivalent the following formulashall be used:CE 5 C1Mn61Cr1Mo1V!51Cu1Ni!156. Mechanica
16、l Properties6.1 Tensile PropertiesThe material as represented by thetest specimens shall conform to the tensile properties given inTable 3.6.2 Charpy V-notch tests shall be made in accordance withSpecification A673/A673M, Frequency H.6.2.1 The test results of full-size specimens taken from thelongit
17、udinal direction of the product shall meet an averagevalue of 35 ft-lbf 48 J at 10F 23C. Subsize specimensare permitted as allowed by Specification A673/A673M.6.2.2 Charpy-V-notch test requirements varying from thevalue specified in 6.2.1 or other test temperatures are subject tothe agreement betwee
18、n the purchaser and the producer.7. Keywords7.1 steel plates; high-strength low-alloy steel; thermo-mechanical controlled rolling; structural steel; weldedconstructionTABLE 1 Chemical Requirements (Heat Analysis)ElementContent in %Grade 50 345 Grade 60 415 Grade 65 450 Grade 70 485 Grade 80 550Thick
19、nessMax 4 in.100 mmMax 4 in.100 mmMax 3 in.75 mmMax 2 in.50 mmMax 1 in.25 mmCarbon, max 0.14A0.16 0.16 0.16 0.16Manganese 0.701.60 0.801.70 0.801.70 0.801.70 1.002.00Phosphorus, max 0.030 0.030 0.030 0.030 0.030Sulfur, max 0.020 0.020 0.020 0.020 0.020Silicon 0.150.50 0.150.50 0.150.50 0.150.50 0.15
20、0.50Copper, max 0.35 0.35 0.35 0.35 0.35Nickel, max 0.30 0.70 0.70 0.70 0.70Chromium, max 0.30 0.30 0.30 0.35 0.40Molybdenum 0.10 0.20 0.25 0.30 0.40Columbium, max 0.05 0.05 0.05 0.05 0.10Vanadium, max 0.08 0.08 0.08 0.09 0.09Aluminium, min 0.020 total or0.015 solubleB0.020 total or0.015 solubleB0.0
21、20 total or0.015 solubleB0.020 total or0.015 solubleB0.020 total or0.015 solubleBBoron, max 0.002 0.002 0.002 0.002 0.002 Editorially corrected.AWhen Supplementary Requirement S75 is ordered the carbon content is 0.16 % max.BBy agreement the steel may be produced with titanium, in which case the min
22、imum aluminum content shall not apply. When this option is exercised, the titanium content,by heat analysis, shall be 0.006 % to 0.02 %, and the actual titanium content shall be reported on the test report.TABLE 2 Maximum Carbon Equivalent (Heat Analysis)Maximum Carbon Equivalent in %Grade 50 345 Gr
23、ade 60 415 Grade 65 450 Grade 70 485 Grade 80 550ThicknessMax 4 in.100 mmMax 4 in.100 mmMax 3 in.75 mmMax24in.50 mmMax 1 in.25 mmCE 0.40 0.43 0.45 0.47 0.50TABLE 3 Tensile RequirementsGradeYield Point, min Tensile Strength, min Elongation, minksi MPa ksi MPa 8 in. 200 mm, % 2 in. 50 mm, %50 345 50 3
24、45 65 450 18 2060 415 60 415 75 520 16 1865 450 65 450 80 550 15 1770 485 70 485 85 585 14 1680 550 80 550 90 620 13 15A1066/A1066M 11 (2015)12SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the purchase order or contract.Standardized supplementary requiremen
25、ts for use at the option of the purchaser are listed inSpecification A6/A6M. Those that are considered suitable for use with this specification are listed bytitle.S1. Vacuum Treatment,S2. Product Analysis,S3. Simulated Post-Weld Heat Treatment of MechanicalTest Coupons,S14. Additional Tension Test,S
26、5.2. Charpy V-Notch Impact Test, andS8. Ultrasonic Examination.ADDITIONAL SUPPLEMENTARY REQUIREMENTSIn addition, the following special supplementary requirements are also suitable for use with thisspecification.S75. Maximum Yield Point to Tensile Strength Ratio: Grade50 and Grade 60The maximum yield
27、 to tensile ratio shall be0.87 for grade 50 and 0.90 for grade 60. In this case themaximum carbon content on the heat analysis can be raised to0.16 % for grade 50.S76. Maximum Tensile StrengthThe maximum tensilestrength shall be 91 ksi 630 for grade 50, 98 ksi 680 forgrade 60, 105 ksi 720 for grade
28、65, 110 ksi 750 forgrade 70, and 115 ksi 800 for grade 80.APPENDIX(Nonmandatory Information)X1. THERMO-MECHANICAL CONTROLLED PROCESSING (TMCP)X1.1 IntroductionThe Thermo-Mechanical ControlledProcessing, commonly referred to as “TMCP” has evolvedfrom the “controlled rolling” (CR) processes. TMCP prod
29、ucesfined-grain steel by a combination of chemical compositionand integrated controls of manufacturing processes from slabreheating to post-rolling cooling, thereby achieving the speci-fied mechanical properties in the required plate thicknesses.TMCP requires accurate control of both the steel tempe
30、ratureand rolling reductions, and does not involve coiling afterpost-cooling.X1.2 Outline of TMCPAs shown in Fig. X1.1, TMCPmay incorporate three processes as follows:X1.2.1 Thermo-Mechanical Rolling (TMR)Steels of finegrain size are produced by rolling in the recrystallisation andnon-recrystallisat
31、ion regions of austenite, and sometimes in thedual-phase temperature region of austenite and ferrite.Generally, a high proportion of rolling reduction is performedclose to, or below, the temperature at which austenite begins totransform to ferrite during cooling (Ar3) and may involverolling in the l
32、ower portion of the temperature range of theintercritical dual-phase region.X1.2.2 Accelerated Cooling (AC)Steels meeting thespecified requirements are produced by controlled cooling(accelerated cooling by water or air cooling) through thedual-phase temperature region immediately after final CR orTM
33、R operation.X1.2.3 Direct Quenching and Tempered (DQT)Steelsmeeting the specified requirements are produced by promotinggrain refinement and increasing hardness through directquenching immediately after final CR or TMR operation.Subsequent to direct quenching the plates are tempered.X1.3 The selecti
34、on, from the above, of the method to beused is made by the steel producer depending upon chemicalcomposition, the plate thickness, and the required properties.A1066/A1066M 11 (2015)13ASTM International takes no position respecting the validity of any patent rights asserted in connection with any ite
35、m 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 at any time by the responsible technical comm
36、ittee 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 comments will receive careful consideration at a m
37、eeting 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 copyrighted by ASTM International, 100 Barr Harbor Drive
38、, 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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ X1.1 Schematic Diagrams of Thermomechanical Control and Conventional Process for Steel PlateA1066/A1066M 11 (2015)14
