1、Designation: A387/A387M 17A387/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 adoptio
2、n 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 Nom
4、inalChromium MolybdenumGrade Content, % Content, %2 0.50 0.5012 1.00 0.5011 1.25 0.5022, 22L 2.25 1.0022 2.25 1.0021, 21L 3.00 1.0021 3.00 1.005 5.00 0.509 9.00 1.0091 9.00 1.001.3 Each grade except Grades 21L, 22L, and Grade 91 is available in two classes of tensile strength levels as defined in th
5、eTensile Requirements tables. Grades 21L and 22L are available only as Class 1. Grade 91 is available only as Class 2. Grade 91is available only as Class 2. Grade 91 consists of two types, with Type 2 differentiated from Type 1 by requiring restrictedcomposition for the enhancement of creep resistan
6、ce.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 mechanicalproperty requirements.1.5 The values stated in either inch-pound units or
7、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 the other. Combining values from the two systems may result in nonconformance with t
8、his specification.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Techni
9、cal Barriers to Trade (TBT) Committee.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 ProductsA435/A435M Specification for Straight-Beam Ultrasonic Examin
10、ation of Steel Plates1 This specification is under the jurisdiction ofASTM Committee 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 March 15, 2017Nov. 1, 2017. Published
11、March 2017November 2017. Originally approved in 1955. Last previous edition approved in 20112017as A387/A387M 11.A387/A387M 17. DOI: 10.1520/A0387_A0387M-17. 10.1520/A0387_A0387M-17A.2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-387/SA-387M in Section II of th
12、at Code.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended
13、 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 only the current v
14、ersionof 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 States1A577/A577M Specification for Ultraso
15、nic Angle-Beam Examination of Steel PlatesA578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special ApplicationsA1017/A1017M Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum-Tungsten2.2 AWS Specifications:4A5.5/A5.5M Low-Alloy Stee
16、l Electrodes for Shielded Metal Arc WeldingA5.23/A5.23M Low-Alloy Steel Electrodes and Fluxes for Submerged Arc WeldingA5.28/A5.28M Low-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 I
17、nformation3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These requirements outline thetesting and retesting methods and procedures, permissible variations in dimensions and weight, quality and repair of defects,marking, loading, and ordering informatio
18、n.3.2 In addition to the basic requirements of this specification, certain supplementary requirements are available when additionalcontrol, testing, or examination is required to meet end use requirements. The purchaser is referred to the listed supplementaryrequirements in this specification and to
19、 the detailed requirements in Specification A20/A20M.3.3 If the requirements of this specification are in conflict with the requirements of Specification A20/A20M, the requirementsof this specification shall prevail.4. Manufacture4.1 Steelmaking PracticeThe steel shall be killed.5. Heat Treatment5.1
20、 Except for Grade 91, all plates shall be thermally treated either by annealing, normalizing and tempering, or, when permittedby the purchaser, accelerated cooling from the austenitizing temperature by air blasting or liquid quenching, followed bytempering. Minimum tempering temperatures shall be as
21、 follows:Grade Temperature, F C2, 12, and 11 1150 62022, 22L, 21, 21L, and 9 1250 67522, 21, and 9 1250 6755 1300 7055.1.1 Grade 91 plates shall be thermally treated, either by normalizing and tempering or by accelerated cooling from theaustenitizing temperature by air blasting or liquid quenching,
22、followed by tempering. Grade 91 plates shall be austenitized at 1900to 1975F 1040 to 1080C and shall be tempered 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 or the anne
23、aled condition.5.3 For plates ordered without the heat treatment required by 5.1, heat treatment 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 chemica
24、l composition shown in Table 1 unless otherwise modified inaccordance with Supplementary Requirement 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 s
25、ize.8. Mechanical Requirements8.1 Tension Test Requirements:8.1.1 The material as represented 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 accordan
26、ce with Specification A20/A20M for platesup to 34 in. 20 mm inclusive, in thickness when an 8-in. 200-mm gage length is used.4 Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http:/www.aws.org.A387/A387M 17a2TABLE 1 Chemical RequirementsNOTE 1Where “. . .” appears
27、, there is no requirement.ElementComposition, %Grade and UNS NumberGrade 2S50460Grade 12K11757Grade 11K11789Grade 22K21590Grade 22LK21590Grade 21K31545Grade 21LK31545Grade 5S50200Grade 9K90941Grade 91K90901 Type 1K90901Grade 91Type 2K90901Carbon:Heat analysis 0.050.21 0.050.17 0.050.17 0.050.15A 0.1
28、0 max0.050.15A0.10 max 0.15 max 0.15 max 0.080.12Heat analysis 0.050.21 0.050.17 0.050.17 0.050.15A 0.050.15A 0.15 max 0.15 max 0.080.12 0.080.12Product analysis 0.040.21 0.040.17 0.040.17 0.040.15A 0.12 max0.040.15A0.12 max 0.15 max 0.15 max 0.060.15Product analysis 0.040.21 0.040.17 0.040.17 0.040
29、.15A 0.040.15A 0.15 max 0.15 max 0.060.15 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 0.300.60Heat 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 0.300.50Product analysis 0.500.88 0.350.73 0.350.73 0.250.66
30、 0.250.66 0.250.66 0.250.66 0.250.66 0.250.66Product analysis 0.500.88 0.350.73 0.350.73 0.250.66 0.250.66 0.250.66 0.250.66 0.250.66 0.300.50Phosphorus, max:Heat analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.0250.020Heat analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.020 0.020Product a
31、nalysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025Product analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.020Sulfur, max:Heat analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.0250.010Heat analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.010 0.005Product analysis 0
32、.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.0250.012Product analysis 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.012 0.005Silicon:Heat analysis 0.150.40 0.150.40 0.500.80 0.50 max 0.50 max 0.50 max 0.50 max1.00 0.200.50Heat analysis 0.150.40 0.150.40 0.500.80 0.50 max 0.50 max 0.50 max 1.00 max
33、 0.200.50 0.200.40Product analysis 0.130.45 0.130.45 0.440.86 0.50 max 0.50 max0.50 max0.50 max0.55 max1.05 max 0.180.56Product analysis 0.130.45 0.130.45 0.440.86 0.50 max 0.50 max 0.55 max 1.05 max 0.180.56 0.200.40Chromium:Heat analysis 0.500.80 0.801.15 1.001.50 2.002.50 2.002.502.753.252.753.25
34、4.006.008.0010.00 8.009.50Heat analysis 0.500.80 0.801.15 1.001.50 2.002.50 2.753.25 4.006.00 8.0010.00 8.009.50 8.09.50Product analysis 0.460.85 0.741.21 0.941.56 1.882.62 1.882.622.633.372.633.373.906.107.9010.10 7.909.60Product analysis 0.460.85 0.741.21 0.941.56 1.882.62 2.633.37 3.906.10 7.9010
35、.10 7.909.60 8.09.50Molybdenum:Heat analysis 0.450.60 0.450.60 0.450.65 0.901.10 0.901.10 0.901.10 0.901.10 0.450.650.851.05Heat analysis 0.450.60 0.450.60 0.450.65 0.901.10 0.901.10 0.450.65 0.901.10 0.851.05 0.851.05Product analysis 0.400.65 0.400.65 0.400.70 0.851.15 0.851.150.851.150.851.150.400
36、.700.851.15 0.801.10Product analysis 0.400.65 0.400.65 0.400.70 0.851.15 0.851.15 0.400.70 0.851.15 0.801.10 0.801.05Nickel, max:Heat analysis . . . . . . . . .0.40Heat analysis . . . . . . . 0.40 0.20Product analysis . . . . . . . . .0.43Product analysis . . . . . . . 0.43 0.20Vanadium:Heat analysi
37、s . . . . . . .0.04 max 0.180.25Heat analysis . . . . . . 0.04 max 0.180.25 0.180.25Product analysis . . . . . . .0.05 max 0.160.27A387/A387M17a3ElementComposition, %Grade and UNS NumberGrade 2S50460Grade 12K11757Grade 11K11789Grade 22K21590Grade 22LK21590Grade 21K31545Grade 21LK31545Grade 5S50200Gr
38、ade 9K90941Grade 91K90901 Type 1K90901Grade 91Type 2K90901Product analysis . . . . . . 0.05 max 0.160.27 0.160.27Columbium:Columbium (niobium):BHeat analysis . . . . . . . .0.060.10Heat analysis . . . . . . . 0.060.10 0.060.10Product analysis . . . . . . . .0.050.11Product analysis . . . . . . . 0.0
39、50.11 0.050.11Boron:Heat analysis . . . . . . . . .Boron, maxC . . . . . . . . 0.001Product analysis . . . . . .Nitrogen:Heat analysis . . . . . . . . .0.0300.070Heat analysis . . . . . . . 0.0300.070 0.0350.070Product analysis . . . . . . . . .0.0250.080Product analysis . . . . . . . 0.0250.080 0.0
40、350.070Aluminum, max:Heat analysis . . . . . . . . .0.02Nitrogen/aluminum . . . . . . . . $4.0Aluminum, maxC . . . . . . . 0.02 0.020Product analysis . . . . . . . . .0.02Titanium, maxC . . . . . . . 0.01 0.01Titanium, max:Zirconium, maxC . . . . . . . 0.01 0.01Heat analysis . . . . . . . . .0.01Tun
41、gsten, maxC . . . . . . . . 0.05Product analysis . . . . . . . . .0.01Copper, maxC . . . . . . . . 0.10Zirconium, max:Antimony, maxC . . . . . . . . 0.003Heat analysis . . . . . . . . . 0.01Arsenic, maxC . . . . . . . . 0.010Product analysis . . . . . . . . . 0.01Tin, maxC . . . . . . . . 0.010A The
42、 carbon content for plates over 5 in. 125 mm in thickness is 0.17 max on product analysis.B Columbium and niobium are interchangeable names for the same element and both names are acceptable for use in A01 specifications.C Applies to both heat and product analysis.A387/A387M17a49. Repair Welding9.1
43、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 welding processes and consumables: SMAW,A5.5/A5.5M E90XX-B9;
44、 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 %.10. Marking10.1 In addition to the marking required in Specification A20/A20M,
45、 each plate shall be legibly stamped or stenciled, dependingupon the ordered thickness, with the letter A for annealed, N for normalized and tempered, and Q for accelerated cooled andtempered, as applicable. Grade 91 plates shall be marked with the appropriate type. Plates ordered to, and conforming
46、 to, Type 2may be marked Type 1 as well.11. Keywords11.1 alloy steel; alloy steel plate; creep resistance; elevated temperature; pressure containing parts; pressure vessel steels; steelplates; steel plates for pressure vesselsSUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unles
47、s 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 agreement between the
48、 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,TABLE 2 Tensile Requirements for Class 1 PlatesGrades 2 and 12 Grade 11 Grades 22, 21, 5, 9, 21L, 22L9Te
49、nsile 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 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 o
