1、Designation: A542/A542M 09A542/A542M 13Standard 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 indicate
2、s the yearof 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 specification2 covers two types of 214 C
3、r-1 Mo and three types of Cr-Mo-V alloy steel plates for use in thequenched-and-tempered condition, intended for the fabrication of welded pressure vessels and components.1.2 Material under this specification is available in five types, designated “A,” “B,” “C,” “D,” and “E.” Type B is identical toT
4、ype A except for restrictive limits for carbon, phosphorus, sulfur, and nickel. The material is also available in five classes havingthe following strength levels. Type E is available only as Class 4 and 4a.Class Minimum Tensile Strength, ksi MPa1 105 7252 115 7953 95 6554 and 4a 85 5851.3 The maxim
5、um thickness of plates is limited only by the capacity of the chemical composition to meet the specifiedmechanical property requirements.1.4 The minimum thickness of plates is limited to 316 in. 5 mm.1.5 The material is intended to be suitable for fusion welding. Welding technique is of fundamental
6、importance and it ispresupposed that welding procedures will be in accordance with approved methods.1.6 These alloy steel plates in the as-rolled condition are sensitive to cracking during flame cutting, transit, and handling. Theyshould be shipped in the as-rolled condition only with the mutual agr
7、eement of the manufacturer and the purchaser or fabricator.1.7 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 mu
8、st be usedindependently of 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 Mecha
9、nical Testing of Steel ProductsA387/A387M Specification for Pressure Vessel Plates, Alloy Steel, Chromium-MolybdenumA435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel PlatesA577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel PlatesA578/A578M Specification
10、for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications3. General Requirements and Ordering Information3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These requirements outline thetesting and retesting methods and proced
11、ures, permitted variations in dimensions, and mass, quality and repair of defects, marking,loading, and ordering information.1 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
12、 Plates for Boilers and Pressure Vessels.Current edition approved Oct. 1, 2009May 1, 2013. Published October 2009June 2013. Originally approved in 1965. Last previous edition approved in 20042009 asA542/A542M 99 (2004)A542/A542M 09.1. DOI: 10.1520/A0542_A0542M-09.10.1520/A0542_A0542M-13.2 For ASME B
13、oiler and Pressure Vessel Code applications, see related Specification SA-542 in Section II of that 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 standard
14、s Document Summary page on the ASTM website.This document is not an ASTM standard 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,
15、ASTM recommends that users consult prior editions as appropriate. In all cases 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,
16、PO Box C700, West Conshohocken, PA 19428-2959. United States13.2 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 li
17、sted 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 of Specification A20/A20M, the requirementsof this specification shall prevail.4. Manufacture4.1 Steelma
18、king PracticeThe steel shall be killed and shall conform to the fine austenitic grain size requirement ofSpecification A20/A20M.TABLE 1 Chemical RequirementsNOTE 1Where “.” appears there is no requirement. Values are maximum unless minimum or a range is indicated.Element Composition, %Type A Type B
19、Type C Type D Type ECarbon:Heat analysis 0.15 max 0.110.15 0.100.15 0.110.15 0.100.15Heat analysis 0.15 0.110.15 0.100.15 0.110.15 0.100.15Product analysis 0.18 max 0.090.18 0.080.18 0.090.18 0.080.18Product analysis 0.18 0.090.18 0.080.18 0.090.18 0.080.18Manganese:Heat analysis 0.300.60 0.300.60 0
20、.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 0.025Phosphorus:Heat analysis 0.025 0.015 0.025 0.015 0.025Product analysis 0.025 0.015 0.025 0.020 0.025Sulfur, max 0.025 0.015 0.025Sulfur:Heat analysis 0.025 0.015 0.025 0.010 0.010Pr
21、oduct analysis 0.025 0.015 0.025 0.015 0.010Silicon, max 0.50 0.50 0.13Silicon:Heat 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 2.002.50 2.753.25Product analysis 1.882.62 1.882.62 2.633.37 1.882.62 2.633.37Molybdenum:Hea
22、t 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:Copper:Heat analysis 0.40 0.25 0.25 0.20 0.25Product analysis 0.43 0.28 0.28 0.23 0.28Nickel, max:Nickel:Heat analysis 0.40 0.25 0.25 0.25 0.25Product analysis 0.43 0.28 0.
23、28 0.28 0.28Vanadium:Heat analysis 0.03 max 0.02 max 0.200.30 0.250.35 0.200.30Heat analysis 0.03 0.02 0.200.30 0.250.35 0.200.30Product analysis 0.04 max 0.03 max 0.180.33 0.230.37 0.180.33Product analysis 0.04 0.03 0.180.33 0.230.37 0.180.33Titanium:Heat analysis . . . . . . 0.0150.035 0.030 max .
24、 . .Heat analysis . . . . . . 0.0150.035 0.030 . . .Product analysis . . . . . . 0.0050.045 0.035 max . . .Product analysis . . . . . . 0.0050.045 0.035 . . .Boron:Heat analysis . . . . . . 0.0010.003 0.0020 max . . .Heat analysis . . . . . . 0.0010.003 0.0020 . . .Product analysis . . . . . . . . .
25、 . . . . . .Columbium:Heat analysis . . . . . . . . . 0.07 max 0.0150.070Heat analysis . . . . . . . . . 0.07 0.0150.070Product analysis . . . . . . . . . 0.08 max 0.0100.075Product analysis . . . . . . . . . 0.08 0.0100.075A542/A542M 1325. Heat Treatment5.1 All plates shall be heat treated by heati
26、ng to a suitable austenitizing temperature, holding for a sufficient period of time toattain uniform temperature throughout the thickness, and quenching in a suitable liquid medium by spraying or immersion. ForType D material, the minimum austenitizing temperature shall be 1650F 900C. For Type E mat
27、erial, the minimum austenitizingtemperature shall be 1850F 1010C.5.2 After quenching, the plates shall be tempered to produce the specified tensile requirements by heating to a suitabletemperature and holding for a period of time of not less that 30 min/in. 1.2 min/mm of thickness but not less than
28、12 h. Theminimum tempering temperature shall 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 a prior heat treatment of normalizing at, or water quenching from, atemperature within the ran
29、ge from 1650 to 1850F 900 to 1010C for TypesA, B, C, and D and 1850 to 2050F 1010 to 1120Cfor Type E before the heat treatment specified in 5.1.5.4 Plates ordered without the heat treatment required by 5.1-5.3 shall be furnished in either the stress-relieved or the annealedcondition. Minimum stress
30、relieving temperature shall be 1050F 565C except for Type E which shall be 1200F 650C.6. Chemical Composition6.1 The steel shall conform to the chemical requirements shown in Table 1.7. Mechanical Properties7.1 Tension Test Requirements:7.1.1 The material as represented by the tension-test specimens
31、 shall conform to the requirements shown in Table 2.7.1.2 For nominal plate thicknesses of 34 in. 20 mm and under, the 112-in. 40-mm wide rectangular specimen may be usedfor the tension test, and the elongation may be determined in a 2-in. 50-mm gage length that includes the fracture and that showst
32、he 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 of 40ftlbf 54 J average of three specimens and 35 ftlbf 48 J for one specimen only in the set.7.2.2 For Class 4,
33、 the impact test temperature shall be as specified on the order.7.2.3 For Class 4a, the impact test temperature shall be 0F 18C.8. Keywords8.1 alloy steel; alloy steel plate; pressure containing parts; pressure vessel steels; steel plates for pressure vesselsTABLE 2 Tensile RequirementsClass 1 Class
34、 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, %A 14 13 20 20 18A See Specification A20/A20M for elongation adjustment.A542/A542M 13
35、3SUPPLEMENTARY 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 considered suitable for use with this specification arel
36、isted 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 Mechanical Test Coupons,S4.2 Additional Tension Test,S5. Charpy V-Notch Impact Test,S6. Drop Weight Test
37、 (for Material 0.625 in. 16 mm and over in Thickness),S7. High-Temperature 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 acco
38、rdance with Specification A578/A578M,S17. Vacuum Carbon-Deoxidized Steel.FIG. S1.1 Transition Temperature Curves Before and After Step Cool Heat TreatmentA542/A542M 134ADDITIONAL SUPPLEMENTARY REQUIREMENTSIn addition, the following supplementary requirements are suitable for this application.S53.S53
39、.1 When specified by the purchaser, the axis of the tensile and impact test specimens shall come from the mid-thickness ofeach plate tested, in lieu of midway between the center thickness and the top or bottom surface of the plate.S62. Temper Embrittlement FactorS62.1 The composition of the steel, b
40、ased on heat analysis, shall be restricted in accordance with the following equations:J5Si1Mn!3P1Sn!3104#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 by agreement between purchaser and the supplier.S62.1.2 When so specified by the purchaser, the ma
41、ximum value 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 composition of the weld deposit shall be restricted in accordance with thefollowing equations:X 510P15Sb14Sn1As!/100#15 P,Sb,Sn,and As in ppm!Cu#0.20%Ni#0.30%S62.1.5 The
42、 values of X shall be reported.S63. Impact Properties After Step CoolingS63.1 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 tra
43、nsition temperature curves.S63.1.2 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
44、 plusthe following step cooling heat treatment:Hold at 1100F (593C) for 1 h, then cool at 10F (5.6C)/h to 1000F (538C).Hold at 1000F (538C) for 15 h, then cool at 10F (5.6C)/h to 975F (524C).Hold at 975F (524C) for 24 h, then cool at 10F (5.6C)/h to 925F (496C).Hold at 925F (496C) for 60 h, then coo
45、l at 5F (2.8C)/h to 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 accordance with Test Methods and Definitions A370 to determine the 40 ft-lbs(55 J) transition temperature from each transition te
46、mperature curve using a set of three test specimens at each test temperature.The test temperatures shall include tests on the upper and lower shelves and a minimum of four intermediate temperatures.S63.4 The following requirements shall be met.vTr4012.5vTr40#50FvTr5512.5vTr55#10Cwhere:vTr40 (vTr55)
47、= the 40 ft-lbs (55 J) transition temperature of the material subjected to the minimum PWHT specified by thepurchaser.vTr40 (vTr55) = the shift of the 40 ft-lbs (55 J) transition temperature the of the step cooled material. (The 40 ft-lbs (55 J)transition temperature the of the step cooled material
48、minus that of the material subjected to the minimumPWHT only).S63.5 The 40 ft-lbs (55 J) transition temperatures for the two material conditions shall be reported.A542/A542M 135SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A542/
49、A542M 99 (2004)A542/A542M 091) that may impact the use of this standard. (Approved Oct. 1,2009May 1, 2013.)(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.(1) Revised Table 1 revised.to remove spurious values and replaced the word, max, by
