1、Designation: A387/A387M 11A387/A387M 17 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
2、 or, in the 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.
3、 Scope*1.1 This specification2 covers chromium-molybdenum alloy steel plates intended primarily for welded boilers and pressurevessels designed for elevated temperature service.1.2 Plates are available under this specification in several grades having different alloy contents as follows:Nominal Nomi
4、nalChromium MolybdenumGrade Content, % Content, %2 0.50 0.5012 1.00 0.5011 1.25 0.5022, 22L 2.25 1.0021, 21L 3.00 1.005 5.00 0.509 9.00 1.0091 9.00 1.001.3 Each grade except Grades 21L, 22L, and 91 is available in two classes of tensile strength levels as defined in the TensileRequirements tables. G
5、rades 21L and 22L are available only as Class 1. Grade 91 is available only as Class 2.NOTE 1Grade 911, previously covered by this specification, is now covered by Specification A1017/A1017M.1.4 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified
6、mechanicalproperty requirements.1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI unitsare shown in brackets. The values stated in each system are not exact equivalents. Therefore, each system must be usedindependently of
7、the other. Combining values from the two systems may result in nonconformance with this specification.2. Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements for Steel Plates for Pressure VesselsA370 Test Methods and Definitions for Mechanical Testing of Steel Prod
8、uctsA435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel PlatesA577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel PlatesA578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special ApplicationsA1017/A1017M Specificati
9、on for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum-Tungsten2.2 AWS Specifications:4A5.5/A5.5M Low-Alloy Steel Electrodes for Shielded Metal Arc WeldingA5.23/A5.23M Low-Alloy Steel Electrodes and Fluxes for Submerged Arc Welding1 This specification is under the jurisdiction ofASTM Commit
10、tee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.11on Steel Plates for Boilers and Pressure Vessels.Current edition approved April 1, 2011March 15, 2017. Published April 2011March 2017. Originally approved in 1955. Last previous edition approve
11、d in 20102011 asA387/A387M 10.A387/A387M 11. DOI: 10.1520/A0387_A0387M-11.10.1520/A0387_A0387M-17.2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-387/SA-387M in Section II of that Code.3 For referencedASTM standards, visit theASTM website, www.astm.org, or conta
12、ctASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.4 Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http:/www.aws.org.This document is not an ASTM stand
13、ard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases
14、 only the current versionof the standard as published by ASTM is to be considered the official document.*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 States1A5.28/A5.28M Low-
15、Alloy Steel Electrodes and Rods for Gas Shielded Arc WeldingA5.29/A5.29M Low-Alloy Steel Electrodes for Flux Cored Arc Welding3. General Requirements and Ordering Information3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These requirements outline thete
16、sting and retesting methods and procedures, permissible variations in dimensions and weight, quality and repair of defects,marking, loading, and ordering information.3.2 In addition to the basic requirements of this specification, certain supplementary requirements are available when additionalcontr
17、ol, testing, or examination is required to meet end use requirements. The purchaser is referred to the listed supplementaryrequirements in this specification and to the detailed requirements in Specification A20/A20M.3.3 If the requirements of this specification are in conflict with the requirements
18、 of Specification A20/A20M, the requirementsof this specification shall prevail.4. Manufacture4.1 Steelmaking PracticeThe steel shall be killed.5. Heat Treatment5.1 Except for Grade 91, all plates shall be thermally treated either by annealing, normalizing-normalizing and -tempering,tempering, or, w
19、hen permitted by the purchaser, accelerated cooling from the austenitizing temperature by air blasting or liquidquenching, followed by tempering. Minimum tempering temperatures shall be as follows:Grade Temperature, F C2, 12, and 11 1150 62022, 22L, 21, 21L, and 9 1250 6755 1300 7055.1.1 Grade 91 pl
20、ates shall be thermally treated, either by normalizing-and-tempering normalizing and tempering or byaccelerated cooling from the austenitizing temperature by air blasting or liquid quenching, followed by tempering. Grade 91 platesshall be austenitized at 1900 to 1975F 1040 to 1080C and shall be temp
21、ered at 1350 to 1470F 730 to 800C.5.2 Grade 5, 9, 21, 21L, 22, 22L, and 91 plates ordered without the heat treatment required by 5.1 shall be furnished in eitherthe stress-relieved stress relieved or the annealed condition.5.3 For plates ordered without the heat treatment required by 5.1, heat treat
22、ment of the plates to conform to 5.1 and to Table2 or Table 3, as applicable, shall be the responsibility of the purchaser.6. Chemical Requirements6.1 The steel shall conform to the requirements as to chemical composition shown in Table 1 unless otherwise modified inaccordance with Supplementary Req
23、uirement S17, Vacuum Carbon-Deoxidized Steel, in Specification A20/A20M for grades otherthan Grade 11.7. Metallurgical Structure7.1 Austenitic Grain SizeGrade 2 material shall have a coarse austenitic grain size.8. Mechanical Requirements8.1 Tension Test Requirements:8.1.1 The material as represente
24、d by the tension test specimens shall conform to the applicable requirements of Table 2 or Table3, as specified on the order.8.1.2 Adjustment of the percentage elongation requirements is permitted in accordance with Specification A20/A20M for platesup to 34 in. 20 mm inclusive, in thickness when an
25、8-in. 200-mm gage length is used.9. Repair Welding9.1 Repair welding shall be permitted only with the approval of the purchaser. Repair welds shall meet the requirements of theconstruction code specified by the purchaser.9.2 All repair welds in Grade 91 shall be made with one of the following weldin
26、g processes and consumables: SMAW,A5.5/A5.5M E90XX-B9; SAW,A5.23/A5.23M EB9 + neutral flux; GTAW,A5.28/A5.28M ER90S-B9; and FCAWA5.29/A5.29ME91T1-B9. In addition, the sum of the Ni+Mn content of all welding consumables used to weld repair Grade 91 plate shall notexceed 1.0 %.A387/A387M 172TABLE 1 Ch
27、emical RequirementsNOTE 1Where “. . .” appears, there is no requirement.ElementComposition, %Grade and UNS NumberGrade 2S50460Grade 12K11757Grade 11K11789Grade 22K21590Grade 22LK21590Grade 21K31545Grade 21LK31545Grade 5S50200Grade 9K90941Grade 91K90901Carbon:Heat analysis 0.050.21 0.050.17 0.050.17
28、0.050.15A 0.10 max 0.050.15A 0.10 max 0.15 max 0.15 max 0.080.12Product analysis 0.040.21 0.040.17 0.040.17 0.040.15A 0.12 max 0.040.15A 0.12 max 0.15 max 0.15 max 0.060.15Manganese:Heat analysis 0.550.80 0.400.65 0.400.65 0.300.60 0.300.60 0.300.60 0.300.60 0.300.60 0.300.60 0.300.60Product analysi
29、s 0.500.88 0.350.73 0.350.73 0.250.66 0.250.66 0.250.66 0.250.66 0.250.66 0.250.66 0.250.66Phosphorus, max:Heat analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.020Product analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025Sulfur, max:Heat analysis 0.025 0.025 0.025
30、0.025 0.025 0.025 0.025 0.025 0.025 0.010Product analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.012Silicon:Heat analysis 0.150.40 0.150.40 0.500.80 0.50 max 0.50 max 0.50 max 0.50 max 0.50 max 1.00 max 0.200.50Product analysis 0.130.45 0.130.45 0.440.86 0.50 max 0.50 max 0.50 max 0
31、.50 max 0.55 max 1.05 max 0.180.56Chromium:Heat analysis 0.500.80 0.801.15 1.001.50 2.002.50 2.002.50 2.753.25 2.753.25 4.006.00 8.0010.00 8.009.50Product analysis 0.460.85 0.741.21 0.941.56 1.882.62 1.882.62 2.633.37 2.633.37 3.906.10 7.9010.10 7.909.60Molybdenum:Heat analysis 0.450.60 0.450.60 0.4
32、50.65 0.901.10 0.901.10 0.901.10 0.901.10 0.450.65 0.901.10 0.851.05Product analysis 0.400.65 0.400.65 0.400.70 0.851.15 0.851.15 0.851.15 0.851.15 0.400.70 0.851.15 0.801.10Nickel, max:Heat analysis . . . . . . . . . 0.40Product analysis . . . . . . . . . 0.43Vanadium:Heat analysis . . . . . . . .
33、0.04 max 0.180.25Product analysis . . . . . . . . 0.05 max 0.160.27Columbium:Heat analysis . . . . . . . . . 0.060.10Product analysis . . . . . . . . . 0.050.11Boron:Heat analysis . . . . . . . . . .Product analysis . . . . . . . . . .Nitrogen:Heat analysis . . . . . . . . . 0.0300.070Product analys
34、is . . . . . . . . . 0.0250.080Aluminum, max:Heat analysis . . . . . . . . . 0.02Product analysis . . . . . . . . . 0.02Titanium, max:Heat analysis . . . . . . . . . 0.01Product analysis . . . . . . . . . 0.01Zirconium, max:Heat analysis . . . . . . . . . 0.01Product analysis . . . . . . . . . 0.01A
35、 The carbon content for plates over 5 in. 125 mm in thickness is 0.17 max on product analysis.A387/A387M17310. Marking10.1 In addition to the marking required in Specification A20/A20M, each plate shall be legibly stamped or stenciled, dependingupon the ordered thickness, with the letter A for annea
36、led, N for normalized and tempered, and Q for accelerated cooled andtempered, as applicable.11. Keywords11.1 alloy steel; alloy steel plate; pressure containing parts; pressure vessel steels; steel plates; steel plates for pressure vesselsSUPPLEMENTARY REQUIREMENTSSupplementary requirements shall no
37、t apply unless specified in the order. A list of standardizedsupplementary requirements for use at the option 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 agreemen
38、t between the supplier and the purchaser.S1. Vacuum Treatment,S2. Product Analysis,S3. Simulated Post-Weld Heat Treatment of Mechanical Test Coupons,S4.1 Additional Tension Test,S5. Charpy V-Notch Impact Test,S6. Drop Weight Test (for Material 0.625 in. 16 mm and over in Thickness),S7. High-Temperat
39、ure Tension Test,S8. Ultrasonic Examination in accordance with Specification A435/A435M,S9. Magnetic Particle Examination,S11. Ultrasonic Examination in accordance with Specification A577/A577M,S12. Ultrasonic Examination in accordance with Specification A578/A578M, andS17. Vacuum Carbon-Deoxidized
40、Steel.TABLE 2 Tensile Requirements for Class 1 PlatesGrades 2 and 12 Grade 11 Grades 22, 21, 5, 9, 21L, 22LTensile strength, 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, %A 18 19 .Elongation in 2
41、in. 50 mm, min, %A 22 22 18Reduction of area, min, % . . 45B40CA See Specification A20/A20M, elongation adjustments.B Measured on round test specimens.C Measured on flat specimen.TABLE 3 Tensile Requirements for Class 2 PlatesAGrade 2 Grade 11 Grade 12 Grades 22, 21, 5, 9 Grade 91Tensile strength, k
42、si 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, min, ksi MPa/(0.2 % offset) 45 310 45 310 40 275 45 310 60 415Elongation in 8 in. 200 mm, min, %B 18 18 19 . .Elongation in 2 in. 50 mm, min, %B 22 22 22 18 18Reduction of area
43、, min, % . . . 45C .40DA Not applicable to annealed material.B See Specification A20/A20M, elongation adjustments.C Measured on round test specimens.D Measured on flat specimen.A387/A387M 174ADDITIONAL SUPPLEMENTARY REQUIREMENTSIn addition, the following supplementary requirements are suitable for t
44、his application. S62 and S63are applicable for Grades 22 and 21 only. S76 is applicable only for Grade 91.S53. Alternative Location for Mechanical TestingWhen specified by the purchaser, the axis of the tensile and impact test specimens shall come from the mid-thickness of eachplate tested, in lieu
45、of midway between the center thickness and the top or bottom surface of the plate.S60. Restricted CarbonS60.1 The maximum carbon content of Grade 5 shall be 0.10 %.S62. Temper Embrittlement FactorS62.1 The composition of the steel, based on heat analysis, shall be restricted in accordance with the f
46、ollowing equations:J5Si1Mn!3P1Sn!3104#150 Si,Mn,Pand Sn in wt%!Cu#0.20%Ni#0.30%S62.1.1 Lower values of J, Cu, and Ni can be specified by agreement between purchaser and the supplier.S62.1.2 When so specified by the purchaser, the maximum value of J shall not exceed 100.S62.1.3 The values of J shall
47、be reported.S62.1.4 If the plates are repaired by welding, the composition of the weld deposit shall be restricted in accordance with thefollowing equations:X510P15Sb14Sn1As!/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 Cool
48、ingS63.1 The Charpy V-notch impact properties shall be determined as follows:S63.1.1 Asufficient amount of Charpy V-notch test specimens shall be taken from the same location from a plate from each heatof steel to construct two transition temperature curves.FIG. S1.1 Transition Temperature Curves Be
49、fore and After Step Cool Heat TreatmentA387/A387M 175S63.1.2 The test specimens for one transition temperature curve shall be given the minimum post weld heat treatment (PWHT)cycle specified by the purchaser.S63.2 The test specimens for the other transition temperature curve shall be given the PWHT cycle specified in S63.1.2 plusthe following step cooling heat treatment:Hold at 1100F (593C) for 1 h, then
