20IO sEcTIoN II,PART A

sA 387/sA~387M

sPECIFIcATIoN FOR PREsSURE VEssEL PLATEs,

ALLOY sTEEL,cHROMIuM MOLYBDENuM

E
sA 387/sA~387

(IdCntical with AsT specincati

::

2. Referenced Documen
2.1As sd rdsr
A20/A2oM specifcation for Gencra1Requircments for

pressurc vesscls dcsigned for clevated tc1nperaturc service,

1.2 Platcs arc ava able under this spccincation in scv

eral grades having differcnt aHoy contcnts as follows

Gradc

Nominal

Nominal

Chromlum

Molybdcnum

ntent,%

o50

12

100

11

125

22,22L
21,21L

225
300
500

100

o50

900
900

9
9I

Stcc1platcs f r Prcssure Vcsscls

A307specincati n for Carbon stcc1Bolts and Studs,

60000PsI Tensile Strcngth

A435/A435M specincati nf r Straight~Beam Ultrasonic

Examination of stcel PIates

A577/A577M spccification for1Jltrasonic Angle-Bea111

Content,%

050
050
050
100

nA387/A387M~o6a)

Exan1ina on of stecl P1atcs

A578/A578M specincati nf r Straight~Bcam Ultrasonic

Examination of plain and C1ad stccl Plates for Spccial

App cations

A1017/A1o17M spccincati n for Pressure Vcssel

Alloy stcc1,Chromium Molybdcnum-Tungsten

Plates,

100

100

3.

GeneraI1Requirements and ordering

Information

1.3

Each grade except Grades 21I , 22L, and 91 is

avanable in two classes oftcnsne s rength1cvels as dcnned

in the Tensnc Rcquircments tablcs, Gradcs21L and22L

nly s c
ollly

FF

NOTE1-

3.1 Matcrial supp cd to this rnatc al spccincati n sha1l

confom to spccincati nA20/A20M These rcquirements
oudinc thc tcsting and rctcsting methods and proccdures,
pcrmissible variations in dimensions and veight,qua ty
and repair of defects,marking,loading,etc

Gradc911,prcvi us1yc vercd by this spccincati n,is now

coVercd by specincati

nA1o17/A1017

l ;

::Il 11

iJ

mcchanical prope y requircmcnts

1.5 The values stated in either inch

pound units or SI
units are to be regarded separately as standard,Within thc
text,the sI units arc shown in brackcts

3.2 specincati nA2o/A20 Ia1so estabhshesthe ru1cs

for the ordcring infomation that should bc comp1icd with

vhcn purchasing mateHal to this specincaJ n,

3.3 In addition to the basic requircments ofthis specin-

cation, ccrtain supplemcntary rcquiremcnts arc ava

to meet end use requirements These include

3.3.1 Vacuum catment,

The values stated

in cach systen1arc not cxact cquivalcnts,Thcrcfo1x ,each

system mustbe uscd indcpendent1y ofthc Othcr,Combining

vo systcms may resultin nonconfomance

3.3.2 Additiona1or special tension testing,

vaIucs from the t

3.3.3 Impact tcsting,and

witll this speci ication.

3.3.4 Nondcst1vctiVc exan1ination,

Co y"ghl AsME nlernatbnaI

PrOMded by lHs und r"0ens0 lh AsME

No reproduC"on or n lwor n0 erm uod w"h

vl

Cens from lHs

ablc

when addiuona1c ntrol,testing,or examination is rcquired

clPEC)`a9B95oo00i
F H:
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lf J

2010sECTION

sAo387/sA 387 I

3.4 Thc purchascr is referrcd to thc listed supplemcn

taly requircmcnts in this specinca

,PART

6.

n and to thc dcta ed

Che lical Requirements

6.1

Thc stee1sha11confom to the requirements as to

requircmcnts in Specinca on A20/A20M,If the require

chcn1ica1composition sho vn in Tab1c1unlcss othcrwisc

ments of this spccincau n are in connict vith the rcquire-

modined in accordance vith supp1ementary Requirement

S17, Vacuuna CaFbon-DcOxidizcd stcc1 in Spccincati n

mcnts of specincati nA20/A20M,

ths spccincati n sha11prev

the rcqu cments of

A20/A20M for grades other than Grade 11.

1.

R anufacture

4.

4.1 s /,m j,Jg

7.
Pr c
C

eta urgicaI structure

--The steel shall be kn1ed

7.1 A s P,J Jc( r

sz

Grade2mate a1sha1l have

a coarsc austenitic grain sizc,

5.

Heat Treatment

|5 1

Except for Gradc91,all platcs shall be

treated thcr by ameal

crlllally

,nomd alld-temp llg,

Qr,when petted by the purchaser,accelerated cooling

om the austcnit ing telnperatu by r bl ting or l d
qucll ing,fo1lowcd

by tempering Mhimum tempe ng

tempcraturcs sha11be as follows

Grade

Tcmpcrature,

2, 12,and ll

22,22L,21,21L,and9
5

5.1,1

C]

1150[620]
1250(675]
1300[705)

Gradc91 platcs sha11be nomalizcd at 1900

to1975 F[1040to1080 C]and shall bc tempered at1350

to1470 F[730to800 C

5.2 Grade5,9,21,21L,22,22L,and91plates ordcrcd

vithout thc hcat trcatment requircd by 51 shall bc furnished in either thc strcss-reheved or thc anncaled con

8.

bIechanicaI Requirements
8.1

V s o

zVs R j raz r

8.1.1 The matcrial as represented by the tension test

specimcns shall confom to thc app cab1c rcquircmcnts of

Tab1e2or Tab1e3,as specined on the order,

8.1.2 Adjust1ncnt of the percentage c1ongation

requirements is pcrmitted in accordance with specincadon

A20/A M

for platcs up to%in

0mm]inc1usivc,h

thickness whcn an8in, [200mrn]gage1ength is uscd,

9.

bIarking

9.1 In addition to c mar ng requLcd in Specincation

A20/A20M,each platc shall bc lcgibly stamped or sten

cned,depcnding upon the ordered thickness,with the letter
A for annca1ed, for nonma1izcd and tcmpcrcd,and g f r
accelerated coo1cd and tempered,as apphcab1e

dition

5.3 For plates orderedvithout thc hcat treatInent

rcquired by5,1,heat treatmcnt of thc p1ates to confom to

5,1 and to Tab1c2or Tablc3,as app

responsibility of thc purchaser

cable,sha11be the

10.
10.1

Keywords
a11oy steel;a1loy s el p1atc;prcssurc containing

parts; pressure vessel stee1s; steel platcs; stccl p1ates for

prcssurc vcssels

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2010sECTION II,PART A

2010sECTION I PART A
sA 387/sA s87I

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2010sECTION II,PART A

sA 387/sA~3871

TABLE2

TENsILE REQuIREM ENTs FOR CLAss I PLATEs

Grades2and12
Tens"e$t'ength` ksi E^ Pa

55to80[38o to55o]

Yie|d strength`min`ksi EMPa

Elongat on in8 in E2oo mm

33E230
[N ote(1)

E|ongation in2in E5o mm ` min` o/

te(1)
`min` %EN
Red Ction of a'ea`min`%

Grade11

Grade$22`21`5`9`21L 22L

6o to85E415to585

60to85E415to585
30E205J

35E240
19
22

18

22

18

45ENote(2)
40EN Ote(3)

NOTEs
(1)See speciJication A2o/A2oM`e ongation adJustme
(2)Measured n round test specimens
(3)Measured on at s ecimen

ts

TABLE3

TENsILE REQVIREMENTs FOR CLAss2PLATEs ENOTE(l)1

Grade2

70to90

Tensi{e st'ength`ksi Al Pa]

Grade11

75to100

E485t 62o]

Grade12

65to85

E515to69o

45E310

45 310

40E275

Elongation in8 in E2oo mm

18

18

19

22

22

22

min` % EN Ote (2)]

E ongauon in2in E50mm

min`%[N ote(2)
Reduction of a'ea`min`%

75to100

E45o to585

Yield st'ength`min`ksi EMPa

(02% ffset)

G'ades22`21`5`9

E515t 69o

85to110

45E310

E585to76o
60E415

18

18

45EN Ote(3)
40EN Ote(4)

NOTEs:
(1) Not a p icab|e to annea|ed mate'ia|
(2)see specincati nA2o/A2oM`e|ongation adjust
ments
(3)Measured n round test specimens

(4)Measu/ed on at specimen

L ens

Grade91

=Korea Power Enq nee"ng C

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2010sECTIoN

sA 87/sA 3871

,PART

sUPPLE IENTARY REQUIRE IENTs

supplementa requirements shal1 not app1y unless specincd in the order. A 1ist of standardized supp1ementary
requirements for use atthe opuon ofthe purchaserisincluded in specincation A20/A20M.severa1ofthose considered
suitab1e for uscvith this speci cation are1istcd be1ow by tit1c,Othcr tests may bc pcrfomed by agreemcnt bct
vccn
the supp er and the purchascr

s1, Vacuum Treatmen1

s2

s3

s7. High

Product Ana1ysis,

s8

shnulated Post lVeld Heat Treat1ment of

Iedhanica1Test Coupo s,

s9

s6

Charpy V Notch Impact Test,

Drop WogIlt Test(for R ate aI

agnetic Pardcle Exa lination,

UItrasonic Examina on in Accordance With

nA577'A579bI,
specinca

s12,

Ultrasonic Exan1ination in Accordance lVith

specincati A578`A578bI,and

O 625in

[16mm]and over in ThicknessJ,

1Jltrason:c Exanlination in Accordance With

specinca on A435`A435 I,

s1I

s4.1 Additiona1Tension Test,

s5,

Temperature Tension Tes1

s17 Vacuum Carbon Deo d zed

steeI

700
nC( 0PEC)

L ensg rea Pow r Eng|n

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2010sECTIoN I PART A

ADDITIONAL suPPLE
In addition,the fol1owing supplement

ENTARY

sA 387/sA

REQUIRE

387M

ENTs

y requiments are suitab1e for this apphcation, S62and S63are app1icable

for Gradcs22and21 on1y

s53

hen spccined by thc purchascr,thc axis of the tens c

s63.1.1 A sufncient amount of Charpy V-notch tcst

specimcns sha11bc takcn fron1thc same location from a

and iInpact test spccimcns shall comc fronl the mid~thick-

p1atc from each heat of stce1 to constmCt t vo transition

ness of each p1ate tcsted,in1ieu of midway betwccn the

tcmperature curvcs

ccnter thickness and thc top or bottolll su aCe of the plate,

s63.1.2 Thc testspccimens for one transiJon temper-

ature cunzc shall bc given thc n1inimum post we1d hcat

trcatment(PWHT)cydc speoncd by the purchaser.

Restricted Carbon
s60.1 The maximum c bon content of Gradc5sha11

s63.2 Thc tcst spccimcns for thc Other tran tion tem-

s60

perature curvc shall be given thc PWIIT cycle specincd

be0,IO%

in s63,1,2plus thc follo ving stcp coo ng heat treauncnt

HoId at11oo F(593 C)for1h,then cool at10

(5.6

s62

(5.6

s62.1 The colnposition of thc steel,based on hcat analysis,sha11bc rest cted in accordance viu1thc f llo ving
cquations

10

150

(si,Mn,P and sn in wt.%)

Cu

020%

Ni

030%

Coo1in stiu a
s63.3 Testthc Charpy V-notch test specimcns in accor-

dancc with Tcst Mcthods and Denniti ns A370to dc

nc the40ft-lbs65J)trans ion tcmperaturc from each

s62.1.1 Lo vcr valucs of J,Cu,and can be specined by agreement bet veen purchaser and the supplicr.

s62.1.2

transition temperature curvc using a set of tlree test speci-

mens at each test temperature,Thc test temperaturcs sha11

include tcsts on thc upper and lower she1ves and arninimum

When so specincd by the purchascr, the

of four intcn ediatc tcmperaturcs

maxi1num value of J shall not excccd 100

s63.4 The fo11o ving requircmcnts sha1l be mct,

s62.1.3 The valucs of J sha11be rcported.

s62.1.4

If the platcs are repaired by welding, the

Composiuon fthc ve1d

dance vith

the follo

deposit sha11be res octed in accor-

ving equauons

X=(10P+5sb+4sn+As,/100

,/Tr40+2,5 ,/Tr40

5o

9/Tr~s5+2.5 z/Tr55

10

where

9/Tr00(VTrs5)=the4o ft-lbs ls5Jl transition tcm15

pcrature of the mat ial su ectCd

(P,sb,sn and Asin ppm)

to the minimum PWHT specined

by the purchascr

Cu 020%
Ni

F638 C)

Ho1d at1000 F(538 C)for15h,then cool at10 F

C,/h to975 F(524 C)
Ho1d at975 F(524 C)for24h,thcn cool at10 F
(5,6 CJ/h to925 F(496 C)
Ho1d at925 F(496 C)for60h,then coo1at5 F
(2.8 C)/h to875 F(468 C),
Hold at875 F(468 C)for100h,thcn cool at50 F
@7,8 C)/h to600 F(315 C)

Temper Embrittlement Factor

J=(si+Mn) (P+sn)

C)/h to1000

vTr40( J/Tr55) =the shift ofthe40ft 1bs(55J) an~

030%

si on

tempcraturc tlle of the step

Coo1cd n1atcria1.(Thc40RJbs

s62.1.5 Thc values of X shall bc reported,

(55J)transition temperaturc thc of

the step coo1ed rnaterial rninus that

of thc matcrial su ected to the

s63

Impact Proper es After step Coo ng

minimum PWHT olllD

s63.1 Thc Charpy V notch impact properues sha11be

s63 5

dctermincd as fo11ows

The40ft lbs(55J,transition temperaturcs for

the two mate al conditions shall be reported,

701
L Censee KOrea PoWor Eng rn

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sA 387'sA s8714

2010sECTION II,PART A

FIG.s1.l TRANsITION TEMPERATVRE CuRVEs BEFORE AND AFTER sTEP COOL HEAT TREATMENT

^2

Minlmum

sP
c

Minimum PWHT

and$tep age
heat treatment

vTr40( vTr55)

mperature,

P dod by Hs undor ns8W"As E

F(

C)

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