1、Designation: A387/A387M 17a Used in USDOE-NE StandardsStandard Specification forPressure Vessel Plates, Alloy Steel, Chromium-Molybdenum1This standard is issued under the fixed designation A387/A387M; the number immediately following the designation indicates the yearof original adoption or, in the
2、case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 T
3、his specification2covers chromium-molybdenum alloysteel plates intended primarily for welded boilers and pressurevessels designed for elevated temperature service.1.2 Plates are available under this specification in severalgrades having different alloy contents as follows:Nominal NominalChromium Mol
4、ybdenumGrade Content, % Content, %2 0.50 0.5012 1.00 0.5011 1.25 0.5022 2.25 1.0021 3.00 1.005 5.00 0.509 9.00 1.0091 9.00 1.001.3 Each grade except Grade 91 is available in two classesof tensile strength levels as defined in the Tensile Requirementstables. Grade 91 is available only as Class 2. Gra
5、de 91 consistsof two types, with Type 2 differentiated from Type 1 byrequiring restricted composition for the enhancement of creepresistance.NOTE 1Grade 911, previously covered by this specification, is nowcovered by Specification A1017/A1017M.1.4 The maximum thickness of plates is limited only by t
6、hecapacity of the composition to meet the specified mechanicalproperty requirements.1.5 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. Th
7、erefore, each system mustbe used independently of the other. Combining values from thetwo systems may result in nonconformance with this specifi-cation.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decis
8、ion on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements for SteelPlates for Pressure Vesse
9、lsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA435/A435M Specification for Straight-Beam UltrasonicExamination of Steel PlatesA577/A577M Specification for Ultrasonic Angle-Beam Ex-amination of Steel PlatesA578/A578M Specification for Straight-Beam UltrasonicExamination o
10、f Rolled Steel Plates for Special Applica-tionsA1017/A1017M Specification for Pressure Vessel Plates,Alloy Steel, Chromium-Molybdenum-Tungsten2.2 AWS Specifications:4A5.5/A5.5M Low-Alloy Steel Electrodes for Shielded MetalArc WeldingA5.23/A5.23M Low-Alloy Steel Electrodes and Fluxes forSubmerged Arc
11、 WeldingA5.28/A5.28M Low-Alloy Steel Electrodes and Rods forGas Shielded Arc Welding1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.11 on Steel Plates for Boilers and Pressure Vessels.
12、Current edition approved Nov. 1, 2017. Published November 2017. Originallyapproved in 1955. Last previous edition approved in 2017 as A387/A387M 17.DOI: 10.1520/A0387_A0387M-17A.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-387/SA-387M in Section II of that Co
13、de.3For 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 website.4Available from American Welding Society (AWS), 550 NW LeJ
14、eune Rd.,Miami, FL 33126, http:/www.aws.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally r
15、ecognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1Mon Apr 30 40 A5.29/A5.29M Low-Alloy Steel Electrodes for Fl
16、ux CoredArc Welding3. General Requirements and Ordering Information3.1 Material supplied to this material specification shallconform to Specification A20/A20M. These requirements out-line the testing and retesting methods and procedures, permis-sible variations in dimensions and weight, quality and
17、repair ofdefects, marking, loading, and ordering information.3.2 In addition to the basic requirements of thisspecification, certain supplementary requirements are availablewhen additional control, testing, or examination is required tomeet end use requirements. The purchaser is referred to theliste
18、d supplementary requirements in this specification and tothe detailed requirements in Specification A20/A20M.3.3 If the requirements of this specification are in conflictwith the requirements of Specification A20/A20M, the require-ments of this specification shall prevail.4. Manufacture4.1 Steelmaki
19、ng PracticeThe steel shall be killed.5. Heat Treatment5.1 Except for Grade 91, all plates shall be thermally treatedeither by annealing, normalizing and tempering, or, whenpermitted by the purchaser, accelerated cooling from theaustenitizing temperature by air blasting or liquid quenching,followed b
20、y tempering. Minimum tempering temperaturesshall be as follows:Grade Temperature, F C2, 12, and 11 1150 62022, 21, and 9 1250 6755 1300 7055.1.1 Grade 91 plates shall be thermally treated, either bynormalizing and tempering or by accelerated cooling from theaustenitizing temperature by air blasting
21、or liquid quenching,followed by tempering. Grade 91 plates shall be austenitized at1900 to 1975F 1040 to 1080C and shall be tempered at1350 to 1470F 730 to 800C.5.2 Grade 5, 9, 21, 22, and 91 plates ordered without theheat treatment required by 5.1 shall be furnished in either thestress relieved or
22、the annealed condition.5.3 For plates ordered without the heat treatment requiredby 5.1, heat treatment of the plates to conform to 5.1 and toTable 2 or Table 3, as applicable, shall be the responsibility ofthe purchaser.6. Chemical Requirements6.1 The steel shall conform to the requirements as toch
23、emical composition shown in Table 1 unless otherwisemodified in accordance with Supplementary Requirement S17,Vacuum Carbon-Deoxidized Steel, in Specification A20/A20Mfor grades other than Grade 11.7. Metallurgical Structure7.1 Austenitic Grain SizeGrade 2 material shall have acoarse austenitic grai
24、n size.8. Mechanical Requirements8.1 Tension Test Requirements:8.1.1 The material as represented by the tension test speci-mens shall conform to the applicable requirements of Table 2or Table 3, as specified on the order.8.1.2 Adjustment of the percentage elongation requirementsis permitted in accor
25、dance with Specification A20/A20M forplates up to34 in. 20 mm inclusive, in thickness when an 8-in.200-mm gage length is used.9. Repair Welding9.1 Repair welding shall be permitted only with the ap-proval of the purchaser. Repair welds shall meet the require-ments of the construction code specified
26、by the purchaser.9.2 All repair welds in Grade 91 shall be made with one ofthe following welding processes and consumables: SMAW,A5.5/A5.5M E90XX-B9; SAW, A5.23/A5.23M EB9 + neutralflux; GTAW, A5.28/A5.28M ER90S-B9; and FCAW A5.29/A5.29M E91T1-B9. In addition, the sum of the Ni+Mn contentof all weld
27、ing consumables used to weld repair Grade 91 plateshall not exceed 1.0 %.10. Marking10.1 In addition to the marking required in SpecificationA20/A20M, each plate shall be legibly stamped or stenciled,depending upon the ordered thickness, with the letter A forannealed, N for normalized and tempered,
28、and Q for acceler-ated cooled and tempered, as applicable. Grade 91 plates shallbe marked with the appropriate type. Plates ordered to, andconforming to, Type 2 may be marked Type 1 as well.11. Keywords11.1 alloy steel; alloy steel plate; creep resistance; elevatedtemperature; pressure containing pa
29、rts; pressure vessel steels;steel plates; steel plates for pressure vesselsA387/A387M 17a2Mon Apr 30 40 TABLE1ChemicalRequirementsNOTE1Where“.”appears,thereisnorequirement.ElementComposition,%GradeandUNSNumberGrade2S50460Grade12K11757Grade11K11789Grade22K21590Grade21K31545Grade5S50200Grade9K90941Gra
30、de91Type1K90901Grade91Type2K90901Carbon:Heatanalysis0.050.210.050.170.050.170.050.15A0.050.15A0.15max0.15max0.080.120.080.12Productanalysis0.040.210.040.170.040.170.040.15A0.040.15A0.15max0.15max0.060.150.060.15Manganese:Heatanalysis0.550.800.400.650.400.650.300.600.300.600.300.600.300.600.300.600.3
31、00.50Productanalysis0.500.880.350.730.350.730.250.660.250.660.250.660.250.660.250.660.300.50Phosphorus,max:Heatanalysis0.0250.0250.0250.0250.0250.0250.0250.0200.020Productanalysis0.0250.0250.0250.0250.0250.0250.0250.0250.020Sulfur,max:Heatanalysis0.0250.0250.0250.0250.0250.0250.0250.0100.005Producta
32、nalysis0.0250.0250.0250.0250.0250.0250.0250.0120.005Silicon:Heatanalysis0.150.400.150.400.500.800.50max0.50max0.50max1.00max0.200.500.200.40Productanalysis0.130.450.130.450.440.860.50max0.50max0.55max1.05max0.180.560.200.40Chromium:Heatanalysis0.500.800.801.151.001.502.002.502.753.254.006.008.0010.0
33、08.009.508.09.50Productanalysis0.460.850.741.210.941.561.882.622.633.373.906.107.9010.107.909.608.09.50Molybdenum:Heatanalysis0.450.600.450.600.450.650.901.100.901.100.450.650.901.100.851.050.851.05Productanalysis0.400.650.400.650.400.700.851.150.851.150.400.700.851.150.801.100.801.05Nickel,max:Heat
34、analysis.0.400.20Productanalysis.0.430.20Vanadium:Heatanalysis.0.04max0.180.250.180.25Productanalysis.0.05max0.160.270.160.27Columbium(niobium):BHeatanalysis.0.060.100.060.10Productanalysis.0.050.110.050.11Boron,maxC.0.001Nitrogen:Heatanalysis.0.0300.0700.0350.070Productanalysis.0.0250.0800.0350.070
35、Nitrogen/aluminum.$4.0Aluminum,maxC.0.020.020Titanium,maxC.0.010.01Zirconium,maxC.0.010.01Tungsten,maxC.0.05Copper,maxC.0.10Antimony,maxC.0.003Arsenic,maxC.0.010Tin,maxC.0.010AThecarboncontentforplatesover5in.125mminthicknessis0.17maxonproductanalysis.BColumbiumandniobiumareinterchangeablenamesforth
36、esameelementandbothnamesareacceptableforuseinA01specifications.CAppliestobothheatandproductanalysis.A387/A387M 17a3Mon Apr 30 40 SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the order. A list of standardizedsupplementary requirements for use at the option
37、of the purchaser is included in SpecificationA20/A20M. Several of those considered suitable for use with this specification are listed below bytitle. Other tests may be performed by agreement between the supplier and the purchaser.S1. Vacuum Treatment,S2. Product Analysis,S3. Simulated Post-Weld Hea
38、t Treatment of MechanicalTest Coupons,S4.1 Additional Tension Test,S5. Charpy V-Notch Impact Test,S6. Drop Weight Test (for Material 0.625 in. 16 mm andover in Thickness),S7. High-Temperature Tension Test,S8. Ultrasonic Examination in accordance with Specifica-tion A435/A435M,S9. Magnetic Particle E
39、xamination,S11. Ultrasonic Examination in accordance with Specifica-tion A577/A577M,S12. Ultrasonic Examination in accordance with Specifica-tion A578/A578M, andS17. Vacuum Carbon-Deoxidized Steel.TABLE 2 Tensile Requirements for Class 1 PlatesGrades 2 and 12 Grade 11 Grades 22, 21, 5, 9Tensile stre
40、ngth, ksi MPa 55 to 80 380 to 550 60 to 85 415 to 585 60 to 85 415 to 585Yield strength, min, ksi MPa 33 230 35 240 30 205Elongation in 8 in. 200 mm, min, %A18 19 .Elongation in 2 in. 50 mm, min, %A22 22 18Reduction of area, min, % . . 45B40CASee Specification A20/A20M, elongation adjustments.BMeasu
41、red on round test specimens.CMeasured on flat specimen.TABLE 3 Tensile Requirements for Class 2 PlatesAGrade 2 Grade 11 Grade 12 Grades 22, 21, 5, 9 Grade 91Tensile strength, ksi MPa 70 to 90 75 to 100 65 to 85 75 to 100 85 to 110485 to 620 515 to 690 450 to 585 515 to 690 585 to 760Yield strength,
42、min, ksi MPa/(0.2 % offset) 45 310 45 310 40 275 45 310 60 415Elongation in 8 in. 200 mm, min, %B18 18 19 . .Elongation in 2 in. 50 mm, min, %B22 22 22 18 18Reduction of area, min, % . . . 45C.40DANot applicable to annealed material.BSee Specification A20/A20M, elongation adjustments.CMeasured on ro
43、und test specimens.DMeasured on flat specimen.FIG. S1.1 Transition Temperature Curves Before and After StepCool Heat TreatmentA387/A387M 17a4Mon Apr 30 40 ADDITIONAL SUPPLEMENTARY REQUIREMENTSIn addition, the following supplementary requirements are suitable for this application. S62 and S63are appl
44、icable for Grades 22 and 21 only.S53. Alternative Location for Mechanical TestingWhen specified by the purchaser, the axis of the tensile andimpact test specimens shall come from the mid-thickness ofeach plate tested, in lieu of midway between the centerthickness and the top or bottom surface of the
45、 plate.S60. Restricted CarbonS60.1 The maximum carbon content of Grade 5 shall be0.10 %.S62. Temper Embrittlement FactorS62.1 The composition of the steel, based on heat analysis,shall be restricted in accordance with the following equations:J 5 Si1Mn! 3 P1Sn! 3104#150 Si, Mn, P and Sn in wt%!Cu#0.2
46、0%Ni#0.30%S62.1.1 Lower values of J, Cu, and Ni can be specified byagreement between purchaser and the supplier.S62.1.2 When so specified by the purchaser, the maximumvalue of J shall not exceed 100.S62.1.3 The values of J shall be reported.S62.1.4 If the plates are repaired by welding, the composi-
47、tion of the weld deposit shall be restricted in accordance withthe following equations:X 5 10P15Sb14Sn1As!/100#15 P, Sb, Sn and As in ppm!Cu#0.20%Ni#0.30%S62.1.5 The values of X shall be reported.S63. Impact Properties After Step CoolingS63.1 The Charpy V-notch impact properties shall be deter-mined as follows:S63.1.1 A sufficient amount of Charpy V-notch test speci-mens shall be taken from the same location from a plate fromeach heat of steel to construct two transition temperaturecurves.S63.1.2 The test specimens for one transition temperaturecurve shall be given the minimum post weld h
