Designati Designation: on: A 387/A 387M – 99
Used in USDOE-NE Standards
AMERICAN SOCIETY FOR TESTING AND MATERIALS 100 Barr Harbor Dr., West Conshohocken, PA 19428 Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Pressure Vessel Plates, Alloy Steel, ChromiumMolybdenum1 This standard is issued under the fixed designation designation A 387/A 387M; 387M; the number number immediately following following the designation designation indicates the year of 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 ( e) indicates an editorial change since the last revision or reapproval.
Steel Plates for Pressure Vessels 3 A 370 Test Test Methods and Definitions for Mechanical Testing Testing of Steel Products 4 A 435/A 435M 435M Specificati Specification on for StraightStraight-Beam Beam Ultrasonic Ultrasonic Examination of Steel Plates 3 A 577/A 577M Specificat Specification ion for Ultrasoni Ultrasonicc Angle-Beam Angle-Beam Examination of Steel Plates 3 A 578/A 578M 578M Specificati Specification on for StraightStraight-Beam Beam Ultrasonic Ultrasonic Examinati Examination on of Plain Plain and Clad Steel Steel Plates Plates for Special Applications3
1. Scope Scope 1.1 This specification2 covers chromium-molybdenum alloy steel plates intended primarily for welded boilers and pressure vessels designed for elevated temperature service. 1.2 Plates Plates are available available under this specification specification in several several grades having different alloy contents as follows: Nominal Chromium Grade 2 12 11 22, 22L 21, 21L 5 9 91 911
Content, % 0.50 1.00 1.25 2.25 3.00 5.00 9.00 9.00 9.00
Nominal Molybdenum Content, % 0.50 0.50 0.50 1.00 1.00 0.50 1.00 1.00 1.00
3. General Requirements Requirements and Ordering Information 3.1 Materi Material al suppli supplied ed to this this materi material al specifi specificat cation ion shall shall conform conform to Specificat Specification ion A 20/A 20M. These requireme requirements nts outlin outlinee the testin testing g and retest retesting ing method methodss and proced procedure ures, s, permissible variations in dimensions and weight, quality and repair of defects, marking, loading, etc. 3.2 Specificati Specification on A 20/A 20M also establis establishes hes the rules rules for the ordering information that should be complied with when purchasing material to this specification. 3.3 In addition addition to the basic requiremen requirements ts of this specificaspecification, certain certain supplement supplementary ary requireme requirements nts are available available when additional control, testing, or examination is required to meet end use requirements. These include: 3.3.1 Vacuum treatment, 3.3.2 Additional Additional or special special tension testing, testing, 3.3.3 Impact Impact testing, testing, and 3.3.4 Nondestructive examination. 3.4 The purchaser purchaser is referred referred to the listed supplementar supplementary y requirements in this specification and to the detailed requirements in Specification A 20/A 20M. If the requirements of this specification are in conflict with the requirements of Specification A 20/A 20M, the requirements of this specification shall prevail.
1.3 1.3 Each Each grad gradee exce except pt Grad Grades es 21L, 21L, 22L, 22L, 91 and and 911 911 is available in two classes of tensile strength levels as defined in the Tensile Requirements tables, depending on heat treatment. In the annealed condition all grades are available only as Class 1. Grades 21L and 22L are available only as Class 1. Grade 91 and 911 are available only as Class 2. 1.4 The maximum maximum thickness thickness of plates plates is limited only by the capacity of the composition to meet the specified mechanical property requirements. 1.5 The values stated stated in either either inch-pound inch-pound units or SI units units are to be regarded separately as standard. Within the text, the SI units units are shown in bracke brackets. ts. The values values stated stated in each each system are not exact equivalents. Therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification. 2. Referenced Documents 2.1 ASTM Standards: A 20/A 20M Specificati Specification on for General General Requirements Requirements for
4. Manufactu Manufacture re 4.1 Steelmaking Practice —The steel shall be killed. 5. Heat Treatment Treatment
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This specification is under the jurisdiction of ASTM Committee A-1 on Steel, Stainless Stainless Steel, and Related Alloys and is the direct responsibility responsibility of Subcommittee Subcommittee A01.11 on Steel Plates for Boilers and Pressure Vessels. Current Current edition approved approved March 10, 1999. 1999. Published Published June 1999. 1999. Originally Originally published published as A 387 – 55 T. Last previous edition edition A 387/A 387M 387M – 98. 2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-387/SA-387M in Section II of that Code.
5.1 5.1 Except Except for for Grad Grades es 91 and and 911, 911, all all plat plates es shal shalll be therma thermally lly treate treated d eithe eitherr by anneal annealin ing, g, norma normaliz lizing ing-- and
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Annual Book of ASTM Standards Standards,, Vol 01.04. Annual Book of ASTM Standards Standards,, Vol 01.01.
A 387/A 387M 5 9 9 0 . 0 . 0 0 – – 4 5 0 . 3 0 0 . 0
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0 5 8 . 8 . 0 0 – – 0 6 5 . 4 . 0 0
0 5 6 . 6 . 0 0 – – 5 0 4 . 4 . 0 0
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0 0 5 . 7 . 0 0 1 1 – – 0 0 5 . 4 . 8 8
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0 3 4 . 4 . 0 0
5 7 2 . 2 . 0 0 – – 8 6 1 . 1 . 0 0
0 1 1 . 1 . 0 0 – – 0 5 6 0 0 . . 0 0
0 5 2 2 0 . 0 . 0 0
0 2 1 1 0 . 0 . 0 0
0 6 5 . 5 . 0 0 – – 0 8 2 . 1 . 0 0
0 0 5 . 6 . 9 9 – – 0 0 0 . 9 . 8 7
5 0 0 . 1 . 1 1 – – 5 0 8 . 8 . 0 0
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0 6 6 . 6 . 0 0 – – 0 5 3 . 2 . 0 0
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x x a a m m 0 5 5 . 5 . 0 0
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5 0 6 . 7 . 0 0 – – 5 0 4 . 4 . 0 0
x x a a m m 0 2 1 . 1 . 0 0
0 6 6 . 6 . 0 0 – – 0 5 3 . 2 . 0 0
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A A
5 5 1 . 1 . 0 0 – – 5 4 0 . 0 . 0 0
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A A
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t n e m e l E
s s : i s s s s s s s s s s s s i i i i i i i i i i i i i s s x s s s s s s s s s s : s s a s l y y y y y y y y y y y y y s s s s s s s s s s s s s l l l l l l l l l l l x l l i i i i i i i i i i i i i i y s a s a m s a s a s a s a : s a s a s a s a s a s a a s a s a y n : l y n , l y n : l y n l y n l y n l y n : l y n y n : l y n l y n y n m y n l y n l l a x a a : l a a a l a e a a s : a a m a a a a x a a a a a a a a , a a u a m a s n t u a n t : a n t a n t n t n t n t n t n t n t n t n t n t r n t m n : c c c c c c c c c u c c c c c e m m a u e a u m a u u a u i a u a u n a u u a u n a : a u n a u o a u m a u : a u i u e t u n t d a t d h t d , t d n t d t d d t d l , t d i t d b t d : t d e t d n t d t a o r a o a o m a o b a o e a o d a o m a o n a o g a o i a o s a d o a o g a o p e r n e r s e r f u e r o e r o e r m e r g e o r b o e r l y e r k e r a e r l u e r o c e r r r H P o H P l H P l r r H P u H P n H P i c H P n t a H P h a u i H P h H P o H P i l a H P o H P o H P i u C M P S S C M N V C B N A T
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A 387/A 387M -tempering, or, when permitted by the purchaser, accelerated cooling from the austenitizing temperature by air blasting or liquid quenching, followed by tempering. Minimum tempering temperatures shall be as follows: Grade 2, 12, and 11 22, 22L, 21, 21L, and 9 5
5.3 For plates ordered without the heat trea treatmen tmentt requi required red by 5.1, heat treatment of the plates to conform to 5.1 and to Table 1 or Table 2, as applicable, shall be the responsibility of the purchaser.
Temperature, °F [°C] 1150 [620] 1250 [675] 1300 [705]
6. Chemical Requirements Requirements 6.1 Th 6.1 Thee st stee eell sh shal alll co conf nfor orm m to th thee re requ quir irem emen ents ts as to chemic che mical al com compos positi ition on sho shown wn in Tabl ablee 1 unl unless ess oth otherw erwise ise modified in accordance with Supplementary Requirement S17, Vacu acuum um Car Carbon bon-Deo -Deoxid xidize ized d Ste Steel, el, in Spe Specifi cificat cation ion A 20/ A 20M for grades other than Grade 11.
5.1.1 Grade Gradess 91 and 911 plates plates shall be normalized normalized at 1900 to 2000°F [1040 to 1095°C] and shall be tempered at not less than 1350°F [730°C]. 5.2 Grade 5, 9, 21, 21L, 22, 22L, 91 and 911 plates plates ordered ordered without the heat treatment required by 5.1 shall be furnished in either the stress-relieved or the annealed condition.
7. Metallurgical Structure 7.1 Aust Austeniti eniticc Grain Size—Grade 2 material shall have a coarse austenitic grain size. 8. Mechanical Requirements Requirements 8.1 Tension Test Requireme Requirements nts : 8.1.1 The material material as repr represent esented ed by the tension tension test specispecimens shall conform to the applicable requirements of Table 2 or Table 3, as specified on the order. 8.1.2 Adjustment of the percentage percentage elongation requirements requirements is permitted in accordance with Specification A 20/A 20M for plates up to 3 ⁄ 4 in. [20 mm] inclusive, in thickness when an 8-in. [200-mm] gage length is used. 9. Marki Marking ng 9.1 In add additi ition on to the ma marki rking ng req requir uired ed in Spe Specifi cificat cation ion A 20/A 20M, each plate shall be legibly stamped or stenciled, depending depen ding upon the ordered thickness, thickness, with the lett letter er A for annealed, N for normalized and tempered, and Q for accelerated cooled and tempered, as applicable.
FIG. 1 Transition Temperature Curves Before and After Step Cool Heat Treatment
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A 387/A 387M TABLE TA BLE 2 Te Tensile nsile Requireme Requirements nts for Class 1 Plates Plates Grades 2 and 12 Tensile strength, ksi [MPa] Yield strength, min, ksi [MPa] Elongation in 8 in. [200 mm], min, % A Elongation in 2 in. [50 mm], min, %A Reduction of area, min, %
Grade 11
55 to 80 [380 to 550] 33 18 22 . ..
Grades 22, 21, 5, 9, 21L, 22L
60 to 85 [415 to 585] 35 19 22 ...
60 to 85 [415 to 585] 30 .. . 18 45B 40C
A
See Specification A 20/A 20M, elongation adjustments. Measured on round test specimens. C Measured on flat specimen. B
TABLE TA BLE 3 Tensile Requirem Requirements ents for Class Class 2 PlatesA
Tensile strength, ksi [MPa] Yield strength, min, ksi [MPa]/(0.2 % offset) Elongation in 8 in. [200 mm], min, % B Elongation in 2 in. [50 mm], min, %B Reduction of area, min, %
Grade 2
Grade 11
Grade 12
Grades 22, 21, 5, 9
Grade 91
Grade 911
70 to 90 [485 to 620] 45 [310]
75 to 100 [515 to 690] 45 [310]
65 to 85 [450 to 585] 40 [275]
75 to 100 [515 to 690] 45 [310]
85 to 110 [585 to 760] 60 [415]
90 to 120 [620 to 840] 64 [440]
18 22 .. .
18 22 ...
19 22 ...
.. . 18 45C 40D
. .. 18 .. .
.. . 18 ...
A
Not applicable to annealed material. See Specification A 20/A 20M, elongation adjustments. C Measured on round test specimens. D Measured on flat specimen. B
SUPPLEMENTARY REQUIREMENTS Supplementary requirements shall not apply unless specified in the order. A list of standardized supple sup plemen mentar tary y req requir uireme ements nts for use at the opt option ion of the pur purcha chaser ser is inc includ luded ed in Spe Specifi cificat cation ion A 20/A 20M. Several of those considered suitable for use with this specification are listed below by title. Other tests may be performed by agreement between the supplier and the purchaser. S1. Vacuum Treatment, Treatment, S2. Prod Product uct Analysis, Analysis, S3. Simu Simulate lated d PostPost-W Weld Heat Tr Treatm eatment ent of Mech Mechanica anicall Test Coupons, S4.1 Additional Tension Tension Test, Test, S5. Charpy V-Notch V-Notch Impact Test, Test, S6. Drop Weight Weight Test, Test, S7. High-T High-Temperature emperature Tension Tension Test, S8. Ultr Ultrasoni asonicc Exami Examinati nation on in accor accordanc dancee with Specification A 435/A 435M,
S9. Magnetic Particle Particle Examination, Examination, S11. Ultrasonic Examination Examination in accordance with Specification A 577/A 577M, S12. Ultrasonic Examination Examination in accordance with SpecificaSpecification A 578/A 578M, S14. Bend Test, Test, and S17. Vacuum Carbon-Deoxidized Carbon-Deoxidized Steel.
ADDITIONAL SUPPLEMENTARY REQUIREMENTS In addition, the following supplementary requirements are suitable for this application. S60. Restricted Carbon
Ni # 0.30%
S60.1 The maximum S60.1 maximum carbon carbon con conten tentt of Gra Grade de 5 sha shall ll be 0.10 %.
S62.1.1 S62.1. 1 Lower values values of J, Cu, and Ni can be specified by agreement between purchaser and the supplier. S62.1.2 S62.1. 2 When so specified by the purchaser purchaser,, the maximum maximum value of J shall not exceed 100. S62.1.3 S62.1. 3 The values values of J shal shalll be reported. reported. S62.1.4 S62.1. 4 If the plates are repa repaired ired by welding, the composition of the weld deposit shall be restricted in accordance with the following equations:
S62. Temper Embrittlement Factor S62.1 The compositio composition n of the steel, based on heat analysis, analysis, shall be restricted 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%
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A 387/A 387M X 5 ~10P 1 5Sb 1 4Sn 1 As! /100 # 15
~P, Sb, Sn and As in ppm!
Cool in still air. S63.3 Tes Testt the Charpy V-notch V-notch test specimens in accordance accordance with Test Methods and Definitions A 370 to determine the 40 ft-lbs (55 J) transition temperature from each transition temperature 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.
Cu # 0.20% Ni # 0.30%
S62.1.5 S62.1 .5 The values values of X shal shalll be reported. reported. S63. Impact Properties After Step Cooling S63.1 The Charpy V-notch V-notch impact properties shall be determined as follows: S63.1.1 S63.1 .1 A sufficie sufficient nt amou amount nt of Charp Charpy y V-notc -notch h test specimens shall be taken from the same location from a plate from each eac h hea heatt of ste steel el to con constr struct uct two tr trans ansiti ition on tem temper peratu ature re curves. S63.1.2 S63.1 .2 The test speci specimens mens for one transition transition temperature temperature curve shall be given the minimum post weld heat treatment (PWHT) cycle specified by the purchaser. S63.2 The test speci specimens mens for the other transition transition temp temperaerature curve shall be given the PWHT cycle specified in S63.1.2 plus the following step cooling heat treatment: Hold at 1100°F (593°C) for 1 h, then cool at 10°F (5.6°C)/h to 1000°F (538°C). Hold at 1000°F (538°C) for 15 h, then cool at 10°F (5.6°C)/h to 975°F (524°C). Hold at 975°F (524°C) for 24 h, then cool at 10°F (5.6°C)/h to 925°F (496°C). Hold at 925°F (496°C) for 60 h, then cool at 5°F (2.8°C)/h to 875°F (468°C). Hold Ho ld at 87 875° 5°F F (4 (468 68°C °C)) fo forr 10 100 0 h, th then en co cool ol at 50 50°F °F (27.8°C)/h to 600°F (315°C).
S63.4 The following following requ requirem irements ents shall be met. vTr40 12.5DvTr40 # 50°F vTr55 12.5DvTr55 # 10°C
where: vTr40 (vTr55)
5 the 40 ft-lbs (55 J) transition temperaturee of the material tur material subjecte subjected d to the minimum PWHT specified by the purchaser. DvTr40 (DvTr55) 5 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 materi mat erial al mi minus nus tha thatt of the mat materi erial al subj su bjec ecte ted d to th thee mi mini nimu mum m PW PWHT HT only). S63.5 The 40 ft-l ft-lbs bs (55 J) transition transition temperatures temperatures for the two material conditions shall be reported.
The American Society for Testing Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of 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 reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, 100 Barr Harbor Drive, West Conshohocken, PA 19428.
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