en 25817 - arc welded joınts in steel- guidance on quality levels for imperfactions july 1992 and...

8/6/2019 EN 25817 - Arc Welded jonts in Steel- Guidance on quality levels for imperfactions July 1992 and AD2000-Manufac

1/54

EUROPEAN STANDARD EN 25817,;NORME EUROPEENNE

EUROPA!SCHE NORM July 1992UDC 621. 791.75.053:669.14:621.791.019

Descriptors: Welded joints, arc welding, steels, acceptance testing, weld defects, acceptability

English versionArc-welded joints in steel- Guidance on quality levelsfor imperfections

(ISO 5817:1992)

Assemblages en aeier sou de it l'are - Guidedes niveaux d'aeeeptation des defauts(ISO 5817:1992)

LiehtbogensehweiBverbindungen an Stahl-Riehtlinie fur Bewertungsgruppen furUnregelmafligkei ten(ISO 5817:1992)

This European Standard was approved by CEN on 1992-07-03.CEN membersare bound to comply with the CENICENELEC Internal Regulations whichstipulate the conditions for giving this European Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to anyCENmember.This European Standard exists in three official versions (English, French,German). A version in any other language made by translation under theresponsibility of a CEN member into its own language and notified to theCentral Secretariat has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland andUnited Kingdom.

CENEuropean Committee for Standardization

Cornite Europeen de NormalisationEuropaisches Komitee fur Normung

Central Secretariat: rue de Stassart 36, B-I050 Brussels 1992 Copyright reserved to CENmembers Ref. No. EN 25817:1992 E


2/54


3/54

TE;lC KON TE jJ (]IY O LO J j V E J KONTJRO L L TD , : ; 7 [ ' 1

Tablo 12-2: Uygulanabilir kalmlik ArahgiNominal kaynak Ana metal kalmhkdikisi kalinhgi arahgi Cilt No

(mm) (mm)0.8 :::;1.32.0 1.3


4/54

fOOl-fO'OII-a t V t12S aUaMJnYV ' f! lv ./ jo tpV ({ -lOD I-YV.L

)[!fZ !S )[~ .m Su lm J nq np u p UA I[q w .A nq U~PU !~ Z%/un un ' nfU IlZU !~! )[ !P ) [UUAU) [~P lJ !l ~I ~! )[ !P ) [UuAU)[USD[U~p unn 00 1 UA~A u~p urur ~Z n'n{Ut1Z11urejdoi ~ pu !s!l~ :)! n' n{ UllZ ll !~ !)[!P )[UUAU)[ )[!I unn 001 l!q !~uuql~H l~PI!fZ!S)[~ .m s u n z n

)[ !I Z!S )[ ~.mSu lm J u qu p u p UA I[ q )[ n:) n)[ U~PU !~Z%\ untm jirqunzn !~ !)[!P )[UUAU )[~pu!l~ I~ !)[!P )[UUAU )[uS D{ uop U lU I 00 1 U A~A u ~p U lU I ~Z n'nlunzn\ urejdoi ~PU !S!l~ :)! n'nJunzn !~!)[!P )[U uA U)[ )[!I U lU I 001 l!q !~uuql~H l~J)[!IZ!S)[~lnS uS I)l',,-->-->----~-->.>--.---~~.-----.-~>-.-=----.------>-----.-.--.-~-"-- ..-----.--.------..>~>'---.'J !p !pm rp !pUdJ l~ ' dP l JAU UAUU! ;) ! ! d !l ) [! fZ !S )[ ~J nS J~q !~! )[ !P ) [UUAU) l'(-Zl 0rqul ')[ug)

JIl~IUIlfBJUIlllUl~p 1-0Jqul LI8~Z N3 UB IlnAoq ) [! IZ !S )[~ .m s l! I! q~ I! P~ In qu )[ u !:)! IJ IU IS ~ l!IU) [ J ~H

'J !J !qUlIUUnn )[ ~p ~U!Ai rep tnn sn q )[U lU J1 lU )[nqesaq J~JlQl)[UJ ru m )[~ :)~A ~I!)[l~ nurrunp "B pun'nplo nsnuox ZQ S J~pm ~zJumU lJU )[ uqup U A~A ~:)U ! uqua 'J!P!P~;)~1f U !:)! U BI)[IJU IJU )[ io !)[U PU ISU lU U lU I 9- l JUPUUlS

us 'OfL17fOdfJ!J


5/54

TE/KI(ON TEl!UlfOlOJ!! lVEKONTROL LTD, sn.

Tablo 12-3: EN 25817 Kaynak kalite seviyeleri icin kabul edilebilir siireksizlik boyutlanSureksizlik tanmu Kalite Seviyeleri iyin Si.ireksizlik Boyutlan

D );:;-1;~c, C (Yk B J:&'''('._Catlaklar lzin verilmezKrater catlaklan izin verilir izin verilmez

Sureksizligin kmlrna yilzeyindeki veya izdiisttm goruntusundeki toplam maksimum alam4% 2%, 1%

Gozenek ve gaz Tek bir gozenek icin maksimum boyutbosluklanAIm kaynakland:::; 05s . , . . . "; ! AIm kaynakland:::; O A s AIm kaynaklanzr S 03sKO~ekaynaklan O'sa ~-~, - KO~ekaynaklan O.4a KO~ekaynaklan 03a

max's mm max, 4mm max3 mmSureksizligin kmlma yuzeyindeki veya izdusum gorunrusundeki toplam max. alam

16% 8% 4%Toplu gozenek Tek bir gozenek icin max. boyut

AIm kaynaklanzr S O.5s AIm kaynaklanzf S O.4s AIm kaynaklan d s; O.3sKO~ekaynaklan 0.5a Kose kaynaklan Oo4a Kose kaynaklan O.3a

max.d mm max, 3 mm max2mmUzun si.ireksizlikler

AIm kaynaklanh:s 0.5sKO~e kaynaklan 0.5a izin verilmezmax.2 mm

Kurtcuk yuvasi KISa snreksizliklerAIm kaynaklanh :S O.5s AIm kaynaklanh :S O o 4 s AIm kaynaklanh :S O.3sKose kaynaklan O.5a Kose kaynaklan O.4a Kose kaynaklan 03amaxA mm ancak et kalmhgindan max.3 mm ancak et rnax.Z nun ancak et

ki.iYilk kalmhgmdan kil~ilk kahnligindan ki.iyilkUzun si.ireksizlikler

AIm kaynaklanh :S O.5sKO~e kaynaklan O.5a izin verilmezmax.2 mm

Kan Kahntilar KISa sureksizliklerAIm kaynaklanh :S O.5s AIm kaynaklanh :S O.4s AIm kaynaklanh :S O.3sKO~ekaynaklan O.5a KO~ekaynaklan OAa Kose kaynaklan O.3amax.d mm ancak et kalmhgmdan max.3 nun ancak et max.2 mm ancak et

kil~ilk kahnhgmdan kucuk k al rn lr gmda n ku cu kBakir kahntilan izin verilmezYetersiz ergime Kesikli ve yuzeye ulasmayan sureksizlikler izin veriImezkabul edilir

TM-RT02-Radyografik Muayene Seviye-Il0ca/c-2005

Egitim Not/art Serisi


6/54

fOOZ-!fW()[J-at V tI3S aUaNmw Jf!.lv.l iJotpvll-ZODf-W.L

( ){ l! JUUl le ( )UUUQZQ'3 1~ll lpCAnp eAeuwll e3 uruatnozreur) lJ~ uq ( )U !SUP If!u ()w ()Z lem cu y IlUU13lS()h UCJ)JIUCA)J1VZ;)WI!J ( )h I f!Z ! J !I !l () h U !Z I cme l~eq JC .D f; )l IIC lUHZ;)UIJ!l;)h If!Z! l!l!l()h U!Z! ()l ;)I)J!lZ!S:l{;)JUSCSI)I. dUJl;)hO

rum ~"O '5 If rum I '5 If rumn'5lf ){Q)JAC)JUO)l .u~ro + unu n '5 If c~ lO + rum Z'5 If UZ"O + unu Z '5 If 1 9UuAU)J;)~Q)J:If!l l;)W!SV

rum ~ "O 'xsur rum I "XCW rum Z "XUW t'lJ'iO; (lI1}ll " i ; ) ~ d P 7 ] }l~O "O '5 If no s If lZ"O If n'3lop Z!Sl()l()AZ()ll i! ! l; )h l I!Z! () l; )I : lf!IZ!lDf; )JUSunzn

rum Z "XCW rum "xcm un n V -xeur "'I!mp I_lAO;')is o '5 If is o '5 If rso '5 Ifunu "XCW rum V "xcm rum ~ -xsm "'lImp ecnxoq OA 'l!"ldH"O'5 If l~rO '5 If l~ Z"O '5 If ){IPjl3IDj I:lU:lS)j:ll:l:lli!'1J !I !l: lA U!Z! ( )l ()A !Z ll JUU t ns s IC ){O I l! l( )]UUW l!l!l()h If!zl (z)l :l A!ZT lJUU i ns a IC ){O I

unu "XCW rum V "xcm rum ~ "XCW l()A!ZTlJUUUl~Vq"O + rum 1 '5 If q9"0"0 + rum 1 '5 If qZ" I + rum I '5 If

rum I "XCW rum Z "XCWC J"O + nnn "0'5 If UI"O + unn "0 '5 If UIlP[lluhlDI

Z()UIJ!l()hUF ! ::l~Q)[J[Oj!P[ U::lpJ::lI1::lPZ()UIJ!l()A If!Z! ()J()I1!1Z!S:l{()JUsunzn [llII!WOU II1IJUI[ll)[ UMOSunn "XCW rum V "XUW nnn ~ 'xaur UIl[)j1luAll)[

c~ 1"0 + rum I5 If ez"o + unn 1 '5 If C "O + nnn 1 '5 If ::l~Q)[)[oAOq U::lpj;:l~::lPII!U!WOU 1~IIUlII!)[ Ufl{Ogunn "XCW rum V -xsm rum ~ "xcm (UCI){l!uAC)J ;)~Q){)qI"O + rum I '5 If q~rO + unn I '5 If q~Z"O + rum 1 '5 If :If!IA;): l{Uq~lpUl~Vrum ~ "XCW unn L -xsm r\ rum 0 I 'xaur

qI"O + unu I '5 If q~ro+rum 1 '5 If r lq~Z"O + rum I '5 If ){CuAm[ ){()S){UAUl~Vrum ~"O '5 If rum 0 '1 '5 If r l V < I ' rumn'5lf n~nlocumcA' Ji\ "unu Z -xsur rum 'xam rum V "XCW (UCl){l!uAU:l{()~Q){)

cro + rum ~"O '5 If CZ"O + unu ~O '5 If cO + rum I '5 If UumlZ1~C IDQ) I.Z ( )UIJ! l( )h U!Z! unu cjxeur rum Z "xcru 'V '-"">"t I f "sro '5 If szo '5 If I\P'lg "1~Jjll ()I:lf!IZ!S)[;)JUs USl)l . l ;)A!ZTlJUU Z!Sl()l() A

zeuquox UlZ!l()I:l{!IZ!S:l{;)JUsunz Il

a J auUJl nAOa ) [! JZ !s :l {( )JUS I f! ~! ! l;) J; )A !MS ; )l! le )l. runuei )[!lZ!s:l{aJUS


7/54

TEKKON TE1CNOLOJ!! VE lKONTROJLl TV , $1'1

~ / " " ' " - - - - - - - - - , ; - - = - - = - = - - = - = - - - - - - - - - " - - - - = - = :, " - - ~ b : , \ , , / l o X \ Lq?\e/,h-L/ /~ _-~-~~-;~}Kaynak Dikislerinin Tahribatstz MUaye~J (VyQ,J(~J;_r~: \ 6\Basmcli -kaplar . . enrun ~=--ooYU;~i;ynak; RN = cevresel kaynak; St=T-kaynagi; nozul ve kose kaynaklan) hacimsel muayenesi (ultrasonik, radyografi) ve yuzey catlakmuayenesi (magnetik parcacik, penetrant test) icin muayene yontemini, kapsarmm ve sirufuubelirler. Aynca, farkh tahribatsiz muayene yontemleri ile tespit edilen hatalar icin izinverilebilirlik snurlanru belirtir.Asagida sadece radyografik muayene icin bu talimatta yer alan bilgiler (AD HP 5/3 Bolam 4.3)ozetlenmektedir. Daha aynnnh bilgi icin talimat mutlaka okunmahdir.Radyografik muayenenin EN 1435'e gore yapilmasmi ongormektedir. Muayene suufi malzemecinsine ve et kalmhgina bagh olarak belirlenmektedir.

4.3 Radyografik Goruntiilerin Dege!l(!_ndirilmesi4.3.1 Catlak; yetersiz ergime,kQl{_ftatalar]J~-~Catlak ve yan cidarda yetersiz ergime hatalanna izin verilmez.

4 . 3 . 24 . 3 . 2 . 1

-,,----;._:.~--;..::__~----:.~-:_-:~,;_...;---.-- .. " " " ' ""

tl " ~, ,Vl",'l -.~ ~('/',..,"L -- ]0 ~'L

jLJ ~ '" \ -I,I 1- l I,)~~(i:~_-ea,AJ,/.",\ (ii"~ _ )

, 'I Wi'i~t(.f~ A , r)V>"'" ,pr', .cIo I N ' '' '' '' '- ' < : ,

Tek taraftan kaynat!/m'4 kaynak dikilerinde yetersiz niifilZiye~. Tek taraftankaynatilmts kaynak diki~lerinde,~ve kokte cekme hatalarina kokislenmemisse izin verilir. \,,:;"J ~d ("v.w',,_.-, {/."'.)\~v

Gozenek ve Kat! kaltnttlarCok Pasolu Kaynak DikisleriKatt kaltnttlar (aliiminyum kaynak dikislerindeki oksit kaltnttlart dahil), stralt gozenek;yuzeye paralel kurtcuk yuvalari ve tungsten kalintilan genel goruntuleri goz onune alinarak(derinlik sekil ve yonlenmeleri) Tablo 4'e gore degerlendirilir.Cok sayida ardtsik kaltnttlar Tablo 4 'de belirtilen kriterleri sagltyorsa ve toplam uzunluklart6t veya ti-a boyundaki bir dikis uzun icinde t den kiiciikse ve ardtsik iki siireksizlikarastndaki mesafe iki siireksizlikten biiyuk olamntn boyunun iki kattndan fazla ise kabuledilebilir. Bu sartlar 6t veya 6 - a uzunlugundan daha kisa dikis uzunluklannda oranttsalolarak uygulantr.Radyografik goruntiide tespit edilen gozeneklerin alani 150 mm 'lik bir kaynak dikisiuzunlugu icinde 1.5t veya 1.5a 'dan (mm' olarak) daha fazla olamaz. kin verilebilir __IIbiiyilk gozenek capl 0.25t vzya 0,25'a 'dan (en (azla 4 rum) daha (azla o/amaz.Toplu gozeneklere murferit olmalari durumunda izin verilir (1m icinde enfazla 3 adet).Yilzeye dik dogrultudaki kurtcuk yuvalartna ayrtk belirti olmast kosulu ile sadece 10 mm'den kaltn kaynakli birlestirmelerde ve derinlik boyutu (belirti yogunlugundan hareketle) gozonune altnarak izin verilir.Tungsten kaltnttlanna; 12 mm ye kadar et kaltnltklartnda enfazla 3 mm uzunlugunda, dahabuyuk et kaltnltklarmda da ti4 vrya a/4 'den (en fazla 5mm) daha uzun olmamasi kosulu ileizin verilir.

TM-RT02-Radyograjik Muayene Seviye-IlO c o 1 < - 1 O O 5

Egitim Not/an Serisi


8/54

~2fr ' ! = s o o s - v = oIJ-a,{jtliJS auakJnw >f!/v.JJJotCpV([-mnl-W.L

IIp:lJojj llUJJllI)JIlSV glUIS ; lU ; lh 1 ll lW; l , ~P I N3 ~nlunzn !~PI!P )[Iluhll) jJ!I!q;lu;lI :xllI! U!O!W!)j;lOJ!q 'J;ll (0 V aZ (j)H JI H H!l;;}PA!A;;}SInqmy ! ld~dldudABnuu !SdA!AdS dl!IB)[

UBUBluuTIml dP L I S Z I N 3: UBUB {UlTIml;;}P, StI N3: UBUB[UIlUBl dP L I 8 S Z N3:

' l !Pdl)[dUlJ! l !PUd{ldQdP ) [BlBIO IIQBq BunQn{UllZt1 )[HZ!S)[dll lS unqdor !)[;;}pu!6!nQ n{U llZ t1 l!q !{l!pq U !U !S !)[!P )[BUAB)[ u du dp:m ! dA B linAOq U !J;;} l)[!IZ !S )[dlllS 'dU !J;;} Id!l ld Hll!PH

'mpnsnuo)[ ZQS dP !ldPA!A ;;} S X dA XZ !Q!P;;}U lJ !Pd InqB)[ u runr qoq l! q6 !l{ ! )[ ;;}PU!JdZ l}u !Uurur S Z I.f!6 ! -dA!AdS ;;}AZ- ;;}A !AdSB :J uAV 'n ls ru rrru {U lT Im l dA!AdS 6 n I.f!6 ! !PPd l/lflqU)[ u !ldUll!PH

' l !P!PWI!l!PUd{ldQ;;}P )[B .IB lo pZQ ld l)[HZ!S )[;;} lllS n q o sro snp BAn )[S n)[ apu nsnu ox IQ IPBlliUBI2 BSU IlB nlB S !)[;;} P L 1 8S Z N3: ')[B lB lo !I!~U dp ;;} rnIZ !S )[d lllS nq !S !)[ UBdBA ;;}Ull!PU;;} P;;}Q;;} P[B :JUV'Z;;}UUI!l!PU;;}P;;}Q;;}PBIBlBq UBUBl)[BuAU)[U; ;}PI .f !S! ll ;;}UUO;;}~6 lBd ;; }UI .r nlmsf l) [ A ;;} znA ''qA 'I 1UBl6 IS ' !dd)[)[BuAB)[ )[;;}S)[fl.A UISu 'l;;}A!Z fYnU UISu 'nQnlo B ll iUBA ;;} JU;;}P ;; }UH 'n ls IlliUBJUllUB l I .f !6 ! ld l) [! JZ !S )[; ;} lllSUdA ;;}UU;;}UP ;;}!dsdl ; ; } n ;;}UdAUnW ;;} IzQ~ )[B .IB lo SUS ;;} !l;;} PA !A ;;} S In qu )[ U ;;}Ull!p q B lllB PlffilS

' lH! l!PUdP;; }QdP ) [BlBIUl lSuPSlB) [ IQlpBll iBPSlB){ dIABPSlB){ I .rnI llBS m~I! ; ;}U!l ;; } l) [m) [l lA 'nq)(HZ!S){dlnS !Q!PldA I.f!Z! tnprepm ns 'U !U !ldI!ll!pq )[!IZ!S)[dlllS U ;;} Ifl.lQ ~ dPU !U lJIJ !S !)[!P )[BUAU)['IQlPBUIDPS lB )[ d IAB{ISlB ){ I .r nI llBS U;;} If l.lQ~uQ I. f! 6! !SdA!AdS d l! IB ){ l!q HPq U !U !S!)[!P )[BuAB)[ l!H

'(t-ll oIqB"U l !Pdl ) [dUl lQ~UQdUdABnw IJIUIS H BA;;}A V )[BlBlo IIQBq ;;}U!S;;}A!AdS;;} l!{B)[ !S!)[!P )[BuAB)[ dA l!P;;} l)[;;}W l;;}InqB)[ IUIQlppdBA ){BlBlo un~An ;;} , StI N3: U!U;;}UdABnUU)[IJB~O APBl uspums nsnuox zQS

' l! INBUBIMAn;; }p ; ;} l ;; }PUU;; }ZIBUUA dU!l; ;} Idn ) [BuAB){ l;;}Q!P d E nln so )[ lSUlliUBIQBS BWSB JUBB pU Isum m uruul. 'npB l)[BUID JU llUBl !U !ldPA!A ;;} S Inqu)[ u!U !ldI!ll!pq ){!IZ!S)[dlllS S!U lJ!Pd ndsoidE !UU ;;} lUQAdU;;}ABnUU){ IJBl~OAPB l ;;} pu !l;;} IS !)[!P )( BuAB ){ U I{B !)[d Pld PW ; ;}ZIBUU ){ !p 6 p rap um s nH

!.laptC!Aas /nqv)f - !sauatWnw Jfifv.i2otfpVH U!.lapUl.l!J~a/.l!fI. IlJfVUtW)f L [~Z [ N'3 Zrz[


9/54

EN 25817:1992. ,

ForewordIn 1991 CEN Technical Committee CENITC 121'Welding" decided to submit ISO 5817:1992-"Arc-welded joints in steel - Guidance on qualitylevels for imperfections" to the Unique AcceptanceProcedure.The result was positive.National standards identical to this EuropeanStandard shall be published at the latestby 1993-01-31 and conflicting national standardsshall be withdrawn at the latest by 1993-01-31.According to the CEN/CENELEC Common Rules,the following countries are bound to implement thisEuropean Standard: Austria, Belgium, Denmark,Finland, France, Germany, Greece, Iceland,

areland, Italy, Luxembourg, Netherlands, Norway,~ortugal, Spain, Sweden, Switzerland andUnited Kingdom.

Contents

ForewordIntroduction1 Scope2 Normative references3 Definitions4 Symbols5 Evaluation of weldsTable 0.1 - Quality levels for weldimperfectionsTable 1- Limits for imperfectionsAnnex 1\ (informative) Additionalinformation and guidelines for use ofthis International Standard

Page233444435

13

2 o BSI 02-1999


10/54


11/54

EN 25817:1992

IntroductionThis International Standard should be used as areference in the drafting of application codes and/orother application standards. Itmay be used withina total quality system for the production ofsatisfactory welded joints. Itprovides three sets ofdimensional values from which a selection can bemade for a particular application. The quality levelnecessary in each case should be defined by theapplication standard or the responsible designer inconjunction with the manufacturer, user and/orother parties concerned. The level shall beprescribed before the start of production, preferablyat the inquiry or order stage. For special purposes,additional details may need to be prescribed.The quality levels given in this InternationalStandard are intended to provide basic referencedata and are not specifically related to anyparticular application. They refer to the types ofwelded joints in a fabrication and not to thecomplete product or component itself. Itis possible,therefore, for different quality levels to be applied toindividual welded joints in the same product orcomponent.Quality levels are listed in Table 0.1.

Table 0.1 - Quality levels for weldimperfections

Level symbol Quality levelD ModerateC IntermediateB StringentThe three quality levels are arbitrarily identifiedas D , C and B and are intended to cover the majorityof practical applications.Itwould normally be hoped that for a particularwelded joint the dimensional limits forimperfections could all be covered by specifying onequality level. In some cases, however, e.g. for certaintype of steels and structures as well as for fatigueloading or leak tightness applications, it may benecessary to specify different quality levels fordifferent imperfections in the same welded joint orto include additional requirements.The choice of quality level for any application shouldtake account of design considerations, subsequentprocessing, e.g. surfacing, mode of stressing(e.g. static, dynamic), service conditions(e.g. temperature, environment), and consequencesof failure. Economic factors are also important andshould include not only the cost of welding but alsothat of inspection, test and repair.

Although this International Standard includestypes of imperfections relevant to the arc weldingprocesses given in clause 1, only those which areapplicable to the process and application in questionneed to be considered.Imperfections are quoted in terms of their actualdimensions, and their detection and evaluation mayrequire the use of one or more methods ofnon-destructive testing. The detection and sizing ofimperfections is dependent on the inspectionmethods and the extent of testing specified in theapplication standard or contract.This International Standard does not includedetails of recommended methods of detection andsizing and, therefore, it needs to be supplemented byrequirements for examination, inspection andtesting. Itshould be appreciated that methods ofnon-destructive examination may not be able to givethe detection, characterization and sizing necessaryfor use within certain types of imperfections shownin Table 1.Although this International Standard covers amaterial thickness range of 3 mrn to 63 mm, it maywell be applicable to thicker or thinner jointsprovided consideration is given to those technicalfactors which may influence the situation.1 ScopeThis International Standard provides guidance onlevels of imperfections in arc-welded joints in steel.Three levels are given in such a way as to permitapplication for a wide range of welded fabrications.The levels refer to production quality and not to thefitness-for-purpose (see 3.1) of the productmanufactured.This International Standard applies to- unalloyed and alloyed steels;- the following welding processes and theirdefined sub-processes in accordance withISO 4063:11 metal-arc welding without gas protection;12 submerged-arc welding;13 gas-shielded metal-arc welding;14 gas-shielded welding with non-consumableelectrode;15 plasma arc welding;

- manual, mechanized and automatic processes;- all welding positions;- butt welds, fillet welds and branchconnections;- materials in the thickness range 3 mmto 63 mm.

e BSI 021999 3


12/54


13/54

EN 258~7:1992

When significant deviations from the jointgeometries and dimensions described in thisInternational Standard are present in the weldedproduct, it is necessary to evaluate to what extentthe provisions of this standard can apply.Metallurgical aspects, e.g. grain size, hardness, arenot covered by this International Standard.2 Normative referencesThe following standards contain provisions which,through reference in this text, constitute provisionsof this International Standard. At the time ofpublication, the editions indicated were valid. Allstandards are subject to revision, and parties toagreements based on this International Standardare encouraged to investigate the possibility of~pplying the most recent editions of the standards

tlilfndicated below. Members ofIEC and ISO maintainregisters of currently valid International Standards.ISO 2553: 1984, Welds - Symbolic representation ondrawings.ISO 4063:1990, Welding, brazing, soldering andbraze welding of metals - Nomenclature ofprocesses and reference numbers for symbolicrepresentation on drawings.ISO 6520:1982, Classification of imperfections inmetallic fusion welds, with explanations.3 DefinitionsFor the purposes of this International Standard, thefollowing definitions apply.3.1fitness-for-purposea product is fit for its intended purpose when it

..,.~mctions satisfactorily in service during itsVipulated lifetime. The product may deteriorate inservice, but not to such a degree that fracture andsubsequent failure occurs. Products may, of course,be misused or overloaded; it is presumed that theactual conditions during service correspond to theintended conditions, including statistical variations,e.g. live loads3.2Weld thickness3.2.1fillet weld thickness, a; nominal throatthicknessheight of the largest isosceles triangle that can beinscribed in the weld section (see ISO 2553)NOTE 1 In countries in which the leg length, Z, is used as thedimension of a fillet weld, the limits for imperfections may bereformulated so that they refer to the leg length.

3.2.2butt weld thickness, sminimum distance from the surface of the part tothe bottom of the penetration, which cannot begreater than the thickness of the thinner of theparts (see ISO 2553)3.3short imperfectionsone or more imperfections of total length not greaterthan 25 mm in any 100 mm length of the weld or amaximum of 25 % of the weld length for a weldshorter than 100 mm3.4long imperfectionone or more imperfections of total length greaterthan 25 mm in any 100 mm length of the weld or aminimum of 25 % of the weld length for a weldshorter than 100 mm3 . 5projected areaarea given by length of weld examined multiplied bythe maximum width of weld3 . 6surface crack areaarea to be considered after fracture

4 SymbolsThe following symbols are used in Table 1.a nominal fillet weld throat thickness (fillet

thickness)b width of weld reinforcementd diameter of poreh size (height or width) of imperfection

length of imperfections nominal butt weld thickness or, in the case of

partial penetration, the prescribed depth ofpenetrationwall or plate thickness

z leg length of fillet welds (in case of isoscelesright angle triangular section z = a12)

5 Evaluation of weldsLimits for imperfections are given in Table 1.A welded joint should normally be evaluatedseparately for each individual type of imperfection(Nos. 1o 25).Different types of imperfection occuring at anycross-section of the joint may need specialconsideration (see No. 26).

4 BSI 02-1999


14/54


15/54

EN 25817:1992

oo.- 10 mm. there may be one indication having anecho arnpll-tude excess upto 12dB with a length 01 10mm per metre 01 weld. Nevertheless.a check test in the lorm 01 a spot-check is necessary for such indications. Radio-graphic examination or opening the weld on a spot-check basis. for instance. maybe considered by way of adcfrtionaf investigation.

exceed the echo amplitude of a circular reflector having a dia-meter of 1 mm or, when the reference block or reference linemethod is used, are up to 12 dB below the specified registra-tion limit. No deviation from this method of assessment ispermitted unless definite proof has been fumished that theIndications do not originate from cracks by opening the weldon a spotcheck basis.

4_4.4 Additional assessment criteriaIndications which suggest a zonal character and recordableindications during testing using a tandem scan constitutegrounds for doubt (see 4.1).I4.5 Assessment of indications of surface test (MP, FE)Linear indications which can be attributed to the separationof materials are not permissible.Isolated surface pores are permissible.

5 Supervision of testingThe relevant third party shall satisfy itself that the tests wereperformed faultlessly. particularly with regard to the type,extent and selection of the tested locations and the properI drawing up and assessment of the indications. If it comesacross serious deficiencies, it shall demand that tests orrepairs be repeated.Where radiographic examination is used. films and testreports. including the photographs made before repairs. shallbe submitted to the relevant third party. The relevant thirdparty shall decide whether it agrees with the assessment ofthe films, as a rule by carrying out spot-checks. If it encoun-ters any discrepancy in assessment, it shall assess all thefilms which come within the scope of testing.Where ultrasonic examination is used, the relevant third partyappraises the test reports. The results of the ultrasonic exam-ination performed at the works are monitored by the relevantthird party on a spot-check basis extending up to 10% of thescope of testing not necessarily on specific objects.IWhere the surface test (MP, FE) is used, the test reports shallbe submitted to the relevant third party.

6 DeviationsAny deviation from the stipulations in this AD 2000-Merkblattor from Appendix 1 to this AD-Merkblatt shall be agreed be-tween the parties concerned (manufacturer, customer/userand the relevant third party).

7 Test reportTest reports relating to the non-destructive tests shall beI drawn up. The test report shall contain information on repairswhere appropriate7.1 Magnetic particle examinationFor technical data, see 5.13 of DIN EN 1290.7.2 Penetrant examinationFor technical data, see clause 9 of DIN EN 571-1.7_3 Ultrasonic examinationInaddition to clearly identifying the test object by means of- manufacturing no.,- drawing no.,- material,- dimensions,- welding process,- area examined


42/54


43/54

c

9)10)

~I 12)e 13)U)15)

16)

c

AD 2000-MerkblattAD 2000Merkblal! HP 513. 01.2002 edition Page 5

the test report shall contain the following additional informa-tion:test category.surface condition,test apparatus,probes,couplants,scan positions,basic reflectors (type, beam path),recording limit,echo height of basic reflector,gain allowance,if applicable, sound attenuation,correction values for adjustment on calibration block.

7.4 Radiographic examinationFor technical date, see clause 7 of DIN EN 1435.

Footnotes for table 1.1) Other materials shall be assigned to comparable material groups according to material specifications as stated in the assessment ofsuitability. Where components made from different material groups are welded together, the group having the greater scope of testingis applicable.

2) U - unannealed, W - heat treated.3) Applies irrespective of stress categories according to AD 20QO.Merkblatt W 1O.7) LN Longitudinal welds and butt welds under full stressAN Circumferential welds (butt welds and lap-welded fillet welds as specified in 2.4 of AD 2000-Merkblatt HP 1; for welded ends,see clause 5 of AD 2000-Merkblatt HP 5/2)St Joints between LN (longitudinal welds) and AN (circumferential welds) or between LN and LN.

6) KNStN

The fillet welds to be tested are .welds connecting weld-on parts, including assembly aids, to the pressure-bearing wallNozzle welds.

Scope of testing to be extended accordingly if resistance to caust ic embri ttlement is required.If conditions under which no postweld heat treatment is required are met.If experience has been proved as stated in 2.2.1 of AD 2000-Merkblatt HP 5/3, the scope of testing is reduced to 10 %.If experience has been proved as stated in 2.2.1 of AD 2000-Merkblatt HP 5/3, the scope of testing is reduced to 2%. Generally it issufficient to include the circumferential welds by testing the joints when making random tests on the longitudinal welds.To be tested on weld length, not necessarily on certain objects. In the case of pressure vessels which are to be subjected to a structuraltest by the relevant third party, the places to be tested shall be agreed with the relevant third party.Generally it is sufficient to include the joints and circumferential welds by testing the joints when making random tests on the longitudinalwelds.If experience has been proved as stated in 2.2.1 of AD 2000-Merkblatt HP 5/3, for material groups 1, 5.1 and 6 the scope of testingis reduced to the same extent as for wall thicknesses :5 15 mm.

17) Should visual examination as stated in 2.1 of AD 2000-Merkblatt HP 513 give rise todoubts, a non-destructive test shall beperformed.18) If more than 10 nozzles are welded to a pressure vessel which are similar in terms of dimension and welding procedure, the scope of

testing can be reduced to 5 % of the nozzle welds but at least 2 nozzle welds shall be tested.19 ) If experience has been proved as stated in 2.2.1 of AD 2000-Merkblatt HP 5/3, a non-destructive test shall only have to be performed

If visual examination as stated in 2.1 of AD 2000-Merkblatt HP 513 has given r ise to doubts.2 : 5 ) If steels in mater ial groups 5.1 to 5.4 are used at lowest operating temperatures e, -10 D C and the requirements in AD 2000-Merkblatt

W 10 are met, the same provisions apply as for Material Groups 1 to 3.33 ) The MP method shall be used preferably If there is adequate permeability Jli:


44/54


45/54

Page 6 AD 2OOO-Merkblat t HP 513.01_2002 editionTable 2. Type and scope of non-destructive testing;

extract from Synoptic table 2 in AD 2000-Merkblatt HP 0Types 01 materialate-

rialgroup')

Type and scope 01 non-destructive testingStN Test methodand and lestKN'1 ' catepory lorcolumn 21

J'l l ,+ .ai0). see Table 1") Relal ively l it tle welding and lesting technical experience is current ly available for wall thickness exceeding 30 mm.29 ) Valid for AIMg4.5Mn only If experience has been proved as stated in 3_1.3 of AD 2OOO-Merkblat tHP 512.JO) A scope of test ing equivalent to 10% Is suff ic ient for ci rcumferent ia l welds up to an outside diameler of 50 mm. ." ) For fi llet welds between joints in non-load bearing elements. e.g. inner retaining r ings, and the pressure vessel wall , a surface test (FE) may be omitted provided Ithat v isual examination according to AD 2000-Merkblatt HP 513gives no r ise to doubts and the resul ts of sur face tests (FE) per lormed al leas I 300 m from such Iwelds gave satisfactory results. .


46/54


47/54

AD 2000-Merkblatt

- Table 3. Type and scope of non-destructive testing;extract from Synoptic table 3 in AD 2000-Merkblatt HP 0 AD 2000-Merkblatt HP 513.01.2002 edition Page 7Malerial

group')Types 01 material

2

Type and scope of non-destructive testing

6

U.W

U.W

U,W

10 0

10 0

10 0

% mm . '.

:s 150(8)andSurface test (FE)

%17

10 025

10 0

10 0

18

10 010 0

10 0

10 0

Scope 01 testing Test method and testLN') St') RN') category in relalion to

wall thickness forcolumns 17. 18. 19

StNandKN')

%2110")

10

10

Test methodand test

category forcolumn 21

22

Ni 1

Ni2

TIl

LCNi 99

Nickel alloyse.g.NiCu 30 FeNiCr 15 FeNiMo 16 Cr 15NiMo 16 CrTINiCr 21 MoNiMo 28Xl0 NICr AITI 32 20

TItaniumZirconiumTantalumHalniumand other metallicmaterials

For foo tno tes ' ) to 2. see table 1

7

as

8

allall

all

all

Wall thickness

mm19 20

II Note: Table 6 has been deleted.

25 s : 30 O(A) or USIA)> 30 :5 60 0(8)or US(S)0

25 :s 50 0(8)or US(8) andSurface lest (FE)

25


48/54


49/54

Tabie :':of non-destructive testing;~~c~~o~ Synoptic table 1 in AD2000 Merkblatt HP0

S7N;IN .V":;;;I! CVj,--.J-.!".'r

.... te-riAlI g.-oop')

::s 0.3

'00

LN')

.';'

.7 ra

11 method and testC3lf!19OlY In retallOf"l tow.lIl'hick~ IOfcofvinns f7, ,e . 19

Scope 01les!'n9in relation towall th 30 s 60 DIS ) ' " US(S)

w

U,W

U

w

100

65

100

100

:s 30 30 '$ 50> 50

" 15> 15 s 30

:s 15> 15:< 30

100"] 100100'2) \00100 100

> 60 -s 90 USIB)

s 0.3

> 90 US(C)2SU}25',)25

s 0.5 204) Il) 2'3)10'&) 100") 21~) .1:11,!jA) : IT J,f) J

100100

:< SO 0(8) '" US(S)25',)25 > SO5 70US(S)

> 70 US(C)

tOOl::}100

100100

25")25

21 22

Noul e and r U l o e !wek:ts are tobeStJbfeded to a SUI1""0 test (MP. FE)I\dditional uhrasorUc'" ra60gtaphicexamination to beperlonned ""rozzjee ha~~ aninside c:: I tam&terE : : : 120 mm wherethicir.rwts.5 01 coo-necbng~000ai area e-xceeds15mm,Test meSO 100 10017t.InMoV 6 4. 20 MoMoNI 5 5. 10015N iCuMoNb 5 22 NiMoC


50/54


51/54

Table 1. Type and scope of non-destructive testing;extract from SynoptiCtable 1 in AD 2000-Merkblatt HP0 (Continued)

Male- Steel grades Type U 'Id scope of rco-eeseoeeve lestingrialI group') UIt, ." """ ' " 'adiog'aphoc .. amnalion Surlace_li! ~~ 1 est methOd and t es t SIN .rod KN') Scope 01tesling Test method! ., LN') St') RN') category In relation 10 in r&tabon to Ie< column 23& ; ; - o c s: waiI.IhdneSS to r walt Ihk:kness~ -~ :: 0 c ::-_ c _ columns 17, 18, 19 10 70 25 MPW 100 > SO" 70USI8)12OMo 195. X 10OMo 9 1 >30 100 100 25> 70 US(C)

4.2 Htghlemper3hJftl steers: 0(8) 0< US(B) I,.,20 t14MaV 6 3 .rod > 20 " 40 US(8) andolB) :s2O 10X 20 OMoV 12 1 W 100 100 100 100 100 MP0< US(C) >20 25

> 40 US(C)5.1 Firnt+gtained s.tnXhJfal steers 10 OIN

17102. DIN EN 100263. 17176 and17179 in the s e o ee . .. ..th high impact .,30 o(A) 0< USIA) Nozzle and 1i~1

I strength at low temperature and the :s3O 100t,) 100 2513) ") welds are to bespecial senes with bgh impact U 100 >30~381 30 :; 60OrB) 0< US(B) 101(1) subjected to a sur-I slr&ngth a l k >w temperature having > 38:s SOlO) 100 100 25 101') lace test (MP,FE)minimum yield poinl < 370 N/mm'. > 60 :s90 US(8) ( AOO"",I1," unrasoern&-gra lneod structUt"aJ steers 10 OIN >90 US(C) 0< raographic17102, DIN EN 100283. 17178 aod examtnaboo to be

17179 In the basic arodhighlern f--- performed 10 15:5 30 100 100 25 > SO:s70 US(8) 10strength al low teenperature and lhe > 70 US(C)spedaf series wilh high impact f--- >30:570 10.trength al low teo-oeretwe having MP> 70 25min imum yi el d poi nt " 370 Nlmm 10< 430 Nlmm>. :530 10017 ) 100 2511)Fln mnimum yieldpo in t " 370 NImm' to < 430 NImm'Kused 10AD 2000-Me


52/54


53/54

. .Table 1. 'Type and scope of nondestructive testing;extract from Synoptic table 1 in AD 2OO0-Merkblatt HP 0 (Continued)

M a ' " s.eel 9'ades Type and scope 01 ~Ifl ..w:trva t&shogrialI 9'00P') lJ1t 30 5 60 D(B) Of US(B) c---- selected 00 basis 01~t(see: :050 100") 100 25'') H) F'9S.1 10310 >30590 10 FEW 100 > 60 5 90 US(B)>SO 100 100 2S H) AD 2OOQ-Me90 USCG) f--- HP 513). Fdiel weld>: : = ; : 15 21.) ") 21S) '~ wlth throat tNcl 15:5 30 10") 100'*) 21S) '~ (.) excee6ng15 mm a lso 10 besubjected 10ultra-

7 Ferrite-free auste-oltic steels but pes- SOf'IC exarrWnationotbIy wlth lerrito 10 the weld metal _e the tf"


54/54

en 25817 - arc welded joınts in steel- guidance on quality levels for imperfactions july 1992 and...

Documents