1、Designation: A542/A542M 09Standard Specification forPressure Vessel Plates, Alloy Steel, Quenched-and-Tempered, Chromium-Molybdenum, and Chromium-Molybdenum-Vanadium1This standard is issued under the fixed designation A542/A542M; the number immediately following the designation indicates the yearof
2、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 () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification2covers two types of 214 Cr-1 Mo andthre
3、e types of Cr-Mo-V alloy steel plates for use in thequenched-and-tempered condition, intended for the fabricationof welded pressure vessels and components.1.2 Material under this specification is available in fivetypes, designated “A,” “B,” “C,” “D,” and “E.” Type B isidentical to Type A except for
4、restrictive limits for carbon,phosphorus, sulfur, and nickel. The material is also available infive classes having the following strength levels. Type E isavailable only as Class 4 and 4a.Class Minimum Tensile Strength, ksi MPa1 105 7252 115 7953 95 6554 and 4a 85 5851.3 The maximum thickness of pla
5、tes is limited only by thecapacity of the chemical composition to meet the specifiedmechanical property requirements.1.4 The minimum thickness of plates is limited to316 in. 5mm.1.5 The material is intended to be suitable for fusionwelding. Welding technique is of fundamental importance andit is pre
6、supposed that welding procedures will be in accordancewith approved methods.1.6 These alloy steel plates in the as-rolled condition aresensitive to cracking during flame cutting, transit, and han-dling. They should be shipped in the as-rolled condition onlywith the mutual agreement of the manufactur
7、er and thepurchaser or fabricator.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 values stated in eachsystem are not exact equivalents, therefore, each system mustbe used independently of
8、the other. Combining values from thetwo systems may result in nonconformance with this specifi-cation.2. Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements forSteel Plates for Pressure VesselsA370 Test Methods and Definitions for Mechanical Testingof Steel Produc
9、tsA387/A387M Specification for Pressure Vessel Plates, Al-loy Steel, Chromium-MolybdenumA435/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 Ultrasonic
10、Examination of Rolled Steel Plates for Special Applica-tions3. 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, permit-ted variations
11、 in dimensions, and mass, quality and repair ofdefects, marking, loading, and ordering information.3.2 In addition to the basic requirements of this specifica-tion, certain supplementary requirements are available whenadditional control, testing, or examination is required to meetend use requirement
12、s. The purchaser is referred to the listedsupplementary requirements in this specification and to thedetailed requirements in Specification A20/A20M.3.3 If the requirements of this specification are in conflictwith the requirements of SpecificationA20/A20M, the require-ments of this specification sh
13、all prevail.1This 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.Current edition approved Oct. 1, 2009. Published October 2009. Originall
14、yapproved in 1965. Last previous edition approved in 2004 as A542/A542M 99 (2004)1. DOI: 10.1520/A0542_A0542M-09.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-542 in Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org,
15、orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume 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
16、, West Conshohocken, PA 19428-2959, United States.4. Manufacture4.1 Steelmaking PracticeThe steel shall be killed andshall conform to the fine austenitic grain size requirement ofSpecification A20/A20M.5. Heat Treatment5.1 All plates shall be heat treated by heating to a suitableaustenitizing temper
17、ature, holding for a sufficient period oftime to attain uniform temperature throughout the thickness,and quenching in a suitable liquid medium by spraying orimmersion. For Type D material, the minimum austenitizingtemperature shall be 1650F 900C. For Type E material, theminimum austenitizing tempera
18、ture shall be 1850F 1010C.5.2 After quenching, the plates shall be tempered to producethe specified tensile requirements by heating to a suitabletemperature and holding for a period of time of not less that 30min/in. 1.2 min/mm of thickness but not less than12 h. Theminimum tempering temperature sha
19、ll be as follows:Type Class Temperature, F CA, B, C 1, 2, 3 1050 565A, B, C 4 1200 650A, B, C, D 4a 1250 6755.3 Plates over 4 in. 100 mm in thickness shall receive aprior heat treatment of normalizing at, or water quenchingfrom, a temperature within the range from 1650 to 1850F 900to 1010C for Types
20、A, B, C, and D and 1850 to 2050F 1010to 1120C for Type E before the heat treatment specified in5.1.5.4 Plates ordered without the heat treatment required by5.1-5.3 shall be furnished in either the stress-relieved or theannealed condition. Minimum stress relieving temperatureshall be 1050F 565C excep
21、t for Type E which shall be1200F 650C.6. Chemical Composition6.1 The steel shall conform to the chemical requirementsshown in Table 1.7. Mechanical Properties7.1 Tension Test Requirements:7.1.1 The material as represented by the tension-test speci-mens shall conform to the requirements shown in Tabl
22、e 2.7.1.2 For nominal plate thicknesses of34 in. 20 mm andunder, the 112-in. 40-mm wide rectangular specimen may beTABLE 1 Chemical RequirementsNOTE 1Where “.” appears there is no requirement.ElementComposition, %Type A Type B Type C Type D Type ECarbon:Heat analysis 0.15 max 0.110.15 0.100.15 0.110
23、.15 0.100.15Product analysis 0.18 max 0.090.18 0.080.18 0.090.18 0.080.18Manganese:Heat analysis 0.300.60 0.300.60 0.300.60 0.300.60 0.300.60Product analysis 0.250.66 0.250.66 0.250.66 0.250.66 0.250.66Phosphorus, max 0.025 0.015 0.025Heat analysis 0.025 0.015 0.025 0.015 0.025Product analysis 0.025
24、 0.015 0.025 0.020 0.025Sulfur, max 0.025 0.015 0.025Heat analysis 0.025 0.015 0.025 0.010 0.010Product analysis 0.025 0.015 0.025 0.015 0.010Silicon, max 0.50 0.50 0.13Heat analysis 0.50 0.50 0.13 0.10 0.15Product analysis 0.50 0.50 0.13 0.13 0.15Chromium:Heat analysis 2.002.50 2.002.50 2.753.25 2.
25、002.50 2.753.25Product analysis 1.882.62 1.882.62 2.633.37 1.882.62 2.633.37Molybdenum:Heat analysis 0.901.10 0.901.10 0.901.10 0.901.10 0.901.10Product analysis 0.851.15 0.851.15 0.851.15 0.851.15 0.851.15Copper, max:Heat analysis 0.40 0.25 0.25 0.20 0.25Product analysis 0.43 0.28 0.28 0.23 0.28Nic
26、kel, max:Heat analysis 0.40 0.25 0.25 0.25 0.25Product analysis 0.43 0.28 0.28 0.28 0.28Vanadium:Heat analysis 0.03 max 0.02 max 0.200.30 0.250.35 0.200.30Product analysis 0.04 max 0.03 max 0.180.33 0.230.37 0.180.33Titanium:Heat analysis . . . . . . 0.0150.035 0.030 max . . .Product analysis . . .
27、. . . 0.0050.045 0.035 max . . .Boron:Heat analysis . . . . . . 0.0010.003 0.0020 max . . .Product analysis . . . . . . . . . . . . . . .Columbium:Heat analysis . . . . . . . . . 0.07 max 0.0150.070Product analysis . . . . . . . . . 0.08 max 0.0100.075A542/A542M 092used for the tension test, and the
28、 elongation may be determinedin a 2-in. 50-mm gage length that includes the fracture andthat shows the greatest elongation.7.2 Notch Toughness RequirementsClasses 4 and 4a:7.2.1 A transverse Charpy V-notch test from each plate-as-heat-treated shall have a minimum energy absorption value of40 ftlbf 5
29、4 J average of three specimens and 35 ftlbf 48 Jfor one specimen only in the set.7.2.2 For Class 4, the impact test temperature shall be asspecified on the order.7.2.3 For Class 4a, the impact test temperature shall be 0F18C.8. Keywords8.1 alloy steel; alloy steel plate; pressure containing parts;pr
30、essure vessel steels; steel plates for pressure vesselsSUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the order.Alist of standardized supplementary requirements for use at the option of the purchaser are includedin Specification A20/A20M. Several of those co
31、nsidered suitable for use with this specification arelisted in this section by title. Other tests may be performed by agreement between the supplier and thepurchaser.S1. Vacuum Treatment,S2. Product Analysis,S3. Simulated Post-Weld Heat Treatment of MechanicalTest Coupons,S4.2 Additional Tension Tes
32、t,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 Examination,S11. Ultrasonic Examination in accordance with Specifi
33、ca-tion A577/A577M,S12. Ultrasonic Examination in accordance with Specifica-tion A578/A578M,S17. Vacuum Carbon-Deoxidized Steel.ADDITIONAL SUPPLEMENTARY REQUIREMENTSIn addition, the following supplementary requirements are suitable for this application.S53.S53.1 When specified by the purchaser, the
34、axis of thetensile and impact test specimens shall come from the mid-thickness of each plate tested, in lieu of midway between thecenter thickness and the top or bottom surface of the plate.S62. Temper Embrittlement FactorS62.1 The composition of the steel, based on heat analysis,shall be restricted
35、 in accordance with the following equations:J 5 Si 1 Mn! 3 P 1 Sn! 3 104#150 Si, Mn, P, and Sn in wt %!Cu#0.20 %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 e
36、xceed 100.S62.1.3 The values of J shall be reported.S62.1.4 If the plates are repaired by welding, the composi-tion of the weld deposit shall be restricted in accordance withthe following equations:X 5 10P 1 5Sb 1 4Sn 1 As!/100#15 P, Sb, Sn, and As in ppm!Cu#0.20 %Ni#0.30 %S62.1.5 The values of X sh
37、all 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 temp
38、eraturecurves.TABLE 2 Tensile RequirementsClass 1 Class 2 Class 3 Class 4 Class 4aTensile strength, ksi MPa 105125 725860 115135 795930 95115 655795 85110 585760 85110 585760Yield strength, min, ksi MPa 85 585 100 690 75 515 55 380 60 415Elongation in 2 in. 50 mm, min, %A14 13 20 20 18ASee Specifica
39、tion A20/A20M for elongation adjustment.A542/A542M 093S63.1.2 The test specimens for one transition temperaturecurve shall be given the minimum post-weld heat treatment(PWHT) cycle specified by the purchaser.S63.2 The test specimens for the other transition tempera-ture curve shall be given the PWHT
40、 cycle specified in S63.1.2plus the following step cooling heat treatment:Hold at 1100F (593C) for 1 h, then cool at 10F (5.6C)/hto 1000F (538C).Hold at 1000F (538C) for 15 h, then cool at 10F (5.6C)/hto 975F (524C).Hold at 975F (524C) for 24 h, then cool at 10F (5.6C)/hto 925F (496C).Hold at 925F (
41、496C) for 60 h, then cool at 5F (2.8C)/hto 875F (468C).Hold at 875F (468C) for 100 h, then cool at 50F(27.8C)/h to 600F (315C).Cool in still air.S63.3 Test the Charpy V-notch test specimens in accordancewith Test Methods and Definitions A370 to determine the 40ft-lbs (55 J) transition temperature fr
42、om each transition tem-perature curve using a set of three test specimens at each testtemperature. The test temperatures shall include tests on theupper and lower shelves and a minimum of four intermediatetemperatures.S63.4 The following requirements shall be met.vTr40 1 2.5DvTr40#50FvTr55 1 2.5DvTr
43、55#10Cwhere:vTr40 (vTr55) = the 40 ft-lbs (55 J) transition tempera-ture of the material subjected to theminimum PWHT specified by the pur-chaser.DvTr40 (DvTr55) = the shift of the 40 ft-lbs (55 J) transi-tion temperature the of the step cooledmaterial. (The 40 ft-lbs (55 J) transi-tion temperature
44、the of the step cooledmaterial minus that of the materialsubjected to the minimum PWHTonly).S63.5 The 40 ft-lbs (55 J) transition temperatures for the twomaterial conditions shall be reported.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the l
45、ast issue(A542/A542M 99 (2004)1) that may impact the use of this standard. (Approved Oct. 1, 2009.)(1) 1.6 added.(2) Section 2 editorially revised.(3) Section 3 editorially revised.(4) 5.4 to be in agreement with Specification A387/A387M.(5) Section 8 added.(6) Table 1 revised.(7) Supplementary Requ
46、irement S17 added as being appropri-ate to this specification.(8) Additional Supplementary Requirement S53 added to be inagreement with Specification A387/A387M.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this sta
47、ndard. 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 committee and must be revi
48、ewed 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 meeting of theresponsib
49、le 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, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple cop
