Bsi bs en 10222 4 2017

BSI Standards Publication Steel forgings for pressure purposes Part 4 Weldable fine grain steels with high proof strength BS EN 10222‑4 2017 National foreword This British Standard is the UK implement[.]

BSI Standar ds Public ation

National foreword

This British Stan ard is the UK implementation of EN 1 2 2-4:2 1

The UK p rticip tion in it pr p ration was entrust ed t o Te hnical

Committ ee ISE/ 11 , St eel C s ings an F orgings

A l s of org nizations r pr sent ed on this committ ee can be o tained on

This publ cation does not purp rt t o inclu e al the ne es ary pro isions

of a contract Use s ar r sponsible for it cor e t a plcation

ICS 7 140.3 ; 7 140.8

This British Stan ard was publ shed u de the a uthority of the

NORME EUROPÉENNE

A pri 2 1

E g lish Ver sion

Piè es forg ées en ac ier pour ap areis à pr es ion -

Partie 4: A cier sou ables à g rains fins avec lmite

d'élasicité élevée

S hmiedesücke aus Stahl für Druck ehälter - Tei 4:

S hweißg eeig nete Fein orn aus tähle mit hoher

Deh g renz

This E rope n Stan ard was ap rov ed b C N on 2 De ember 2016

C N member are bou d to c mply with the C N/C NE E Internal R eg ulations which sip late the c n itions for g ivin this

E r ope n Stan ard the satus of a national san ar d without an alteration Up-to-date lss an biblog rap ic al referenc es

c nc rnin such national san ards may be obtained on ap lc ation to the C N-C NE E Manag ement Cente or to an C N

member

This E rope n Stan ard ex ists in thr ee oficial ver ions (E g lish, French, German) A v er ion in an other lang uage made b

translation u der the responsibi ty of a C N member intoit ow n lang uag e an notified to the C N-C NE E Manag ement

Cente has the same satus as the oficial ver ions

C N member are the national san ards bodies of A usria, Belg ium, B lg aria, Cro tia, Cyprus, Cz ch Rep blc, Denmark, Es onia,

Finlan , Former Y ug oslav R ep blc of Mac edonia, Franc e, Germany, Gre c , Hu g ary, Ic lan , Irelan , Italy, Latvia, Lith ania,

L x embourg, Malta, Netherlan s, Norway, Polan , Portug al, R omania, S rbia, Slovakia, Slov enia, Spain, Sweden, Switzerlan ,

Turkey an United K in dom

EUR OP A N COMMIT E FOR STAND R DIZA TION

COMITÉ EU OP EN DE NO MALISA ION

EU OPÄISCHES KOMITE FÜ NORMUNG

C N-C NE E Manag ement C ntre: Av n e Marnix 1 , B-1 0 Brus els

Contents Page

Eur ope n for ewor d 3

1 Scope 4

2 Nor mative r efer ences 4

3 Ter ms and definitio s 4

4 Clas ification and designatio 4

4.1 Clas ification 4

4.2 Designatio 4

5 Infor matio to be suppl ed by the pur chaser 4

5.1 Mandator y infor mation 4

5.2 Optio s 5

6 Requir ements 5

6.1 Ste lmaking pr oces and manufac tur e of the produc t 5

6.2 Delv er y conditio 5

6.3 Chemical compositio 5

6.3.1 Cast analy sis 5

6.3.2 Pr oduc t analysis 5

6.4 Mechanical pr oper ties 5

6.5 Sur fac e conditio 6

6.6 Internal so ndnes 6

6.7 Resistance to hydr og en induc ed cr acking 6

7 Inspec tion 6

8 S mpl n 6

9 Test methods 6

10 Retests 6

11 Mar king 6

A nnex A (informative) Sig nificant tec hnical chang es to the ver sio EN 1022 -4:199 13

A nnex ZA (informative) Relatio ship between this E r ope n Standar d and the Es ential Requir ements of EU Directive 2014/68/EU 14

Biblog r ap y 15

Eur opean for ewor d

This document (EN 1 2 2-4:20 7) has be n pr p r ed b Te h ical C mmite ECIS /TC1 1 “ Ste l

cas ings an forgings”, the se r tar iat of which isheld b A FNOR

This E ro ean Standard shal be given the s atus of a national s an ard, eithe b publcation of an

identical tex t or b en or sement, at the lates b Octo e 2 1 , an conflcting national s an ards shal

be with rawn at the lates b Octo e 2 1

A ttention is dr awn to the p s ibi ty that some of the element of this document ma be the subje t of

p tent rig ht CEN shal not beheld r sp nsible for identifying any or al such p tent right

This document super sedesEN 1 2 2-4:1 9

This document has be n pr p r d un e a man ate g iven to CEN b the E r opean Commis ion an the

Euro ean Fr e Trade A ssociation, an sup ort es ential r q ir ment of EU Dir ective 2 14/ 8 EU

F r r lationship with EU Dir ctive 2 14/ 8 EU, se informative A nnex ZA , which is an integral p rt of

thisdocument

EN 1 2 2 consis sof thefolowing p rt u de the gene al title “ Ste l forging sfor pr s ur purp ses”:

— Part 1: G ene al r q ireme nt f r o en die f rgings

— Part 2: Fe ritic a d martensitic s ee ls with specified elev ted tempe atur pro e ties

— Part 3: Nicke l ste ls with specified low tempe atur pro e ties

— Part 4: Welda le fine grainste ls with high pro fs r n th

— Part 5: Martensitic ,a stenitic a d a s enitic -fe ritic stainles stee ls

A nnex A provides detais a out ignificant te h ical chang es to EN1 2 2-4:1 9

A ccor ding to the CEN-CENELEC Inte nal R eg ulations, the national s an ards or g anisations of the

folowing cou tries ar e b u d to implement this E r opean Stan ard: Aus r ia, Belgium, Bulg aria,

Cro tia, Cyprus, Cz ch Republc, Denmark, Es onia, Finlan , F rme Yug osla R epublc of Mac donia,

Franc , Ger many, Gr e e, Hu g ary, Ic lan , Ir eland, Italy, L tvia, Lithuania, Lux emb urg, Malta,

Nether lan s, Norway, Polan , Portug al, R omania, S rbia, Slovakia, Slovenia, Sp in, Sweden, Switz rlan ,

Tur key an the United Kingdom

1 Scope

This E ro ean Stan ard spe ifies the te h ical delvery con itions for forgings for pr s ur purp ses,

made of welda le fine g rain s e ls with high pro f str eng th

NOT Once this stan ard is p blished in the EU Oficial Journal (OJEU) u der Directive 2 14/68 EU,

presumption of conformity to the Es ential S fety Req irements (ESR s) of Direct ive 2 14/68 EU is limited t o

tech ical data of materials in this stan ar d an do s not presume adeq acy of the material to a specific item of

eq ipment Conseq ently, t he as es ment of the t ech ical data stated in this mat erial stan ard ag ainst the desig n

req irements of this specific item of eq ipment t o v erify that the ESR s of Directiv e 2 14/68 EU are satisfied,

ne ds t o b done T e ser ies EN 1 2 2 1 to EN1 2 2 5 is structured so that t he data related to diferent

materials is in the part alocated for that mat erial T e presumption of conformity to the Es ential S fet y

R eq irements of Directiv e 2 14/68 EU depen s on b t h the tex t in part 1 an the data in part 2, 3, 4 or 5

Gene al information on te h ical delvery con itions is g iven in EN 1 0 1

The folowing document , in whole or in p rt, ar normatively r fe enc d in this document and ar e

in ispensa le for it a plcation F r dated r fe enc s, only the edition cited a ples F r u dated

r fe enc s, thelates edition of the r fe enc d document (including any amen ment )a ples

EN 1 2 2-1:2 1 , Ste l frgings fr pr ssur p rp ses — Part 1: G ene al r q ir ment

F r the pur pose of this document, thete msan definitions g iven in EN10 2 -1:2 1 a ply

4.1 Clas ification

In ac ordanc with the clas ification system in EN1 02 , the s e l g r ades spe ified in this document

ar non-alo q al ty s e ls (P2 5NH, P2 5Q H, P3 5NH, P3 5Q H1, P3 5NL ), non-alo spe ial s e l

(P3 5NL ) and alo spe ial s e ls (P3 5Q L1, P3 5QL2, P 20NH, P 2 Q H, P46 Q H, P 60QL1,

P46 QL2)

4.2 Desig nation

S e EN 1 2 2-1:2 1

5.1 Mandatory information

Shal be in ac ordanc with EN 1 2 2-1:2 1

5.2 Options

A n mbe of o tions ar e spe ified in this document and ls ed below A dditionaly, the r elevant o tions

of EN1 2 2-1:2 1 a ply

1) tes tempe atur for the tensie tes at elevated tempe atur , if a plca le ( e 6.4);

2) carb n eq ivalent or non-alo s e ls ( e Ta le2, fo tnote b);

3) hig he A l content ( e Ta le 2, fo tnotec);

4) highe sulph r content ( e Ta le 2, fo tnote f);

5) me hanical pro e ties for g rades type P46 in normalz d con ition ( e Ta le 4 fo tnote f an

Ta le 6, fo tnote a);

6) difer ent tes temper atur for the min imp ct ene g ( e Ta le 5, fo tnote c);

7) minimum imp ct ener g y values ( se Ta le 5 fo tnote d);

8) tes to evaluate the r sis anc to hydr og en in uc d cr acking ( e 6.7)

Shal be in ac ordanc with EN 1 2 2-1:2 1

6.2 Del ver y condition

The pr od cts shal be delver d in the heat tr atment con ition spe ified in Ta le 1

6.3.1 Cast analysis

The chemical comp sition (cas analysis), deter mined in ac or danc with EN 1 2 2-1:2 1 shal

confor m to the r q ir ment of Ta le 2

6.3.2 Pr oduct analysis

The pr od ct analysis shal not deviate from the spe ified cas analysis ( e Ta le 2) b mor than the

values spe ified in Ta le 3

6.4 Mechanical pr oper ties

W hen heat tr ated in ac ordanc with Ta le 1, the me hanical pro er ties shal confor m to the

r q ir ment of Ta les 4 an 5

Elevated temper atur pr oof s r ngth (RP0,2

values shal confor m to the r q ir ement of Ta le 6

If verification of spe ified pro f s r ngth at elevated tempe atur is r q es ed ( e o tion in

EN 1 2 2-1:2 1 ), the tes ing tempe atur e should be ag r eed at the time of en uiry an orde

Othe wise, the tes shal be carr ied out at 3 0 °C

S e EN 1 2 2-1:2 1

S e EN 1 2 2-1:2 1

6.7 Resistance to hydr og en induced c acking

Ste ls cover ed b this s andard ma be susc ptible to c acking when ex posed to corr osive H2S

containing environment , usualy r fe r ed to as „sour se vic “

A tes to evaluate the r sis anc to hydrog en ind c d c acking in ac or danc with EN 1 2 9 ma be

agre d at the time of en uir y an orde

S e EN 1 2 2-1:2 1

S e EN 1 2 2-1:2 1

S e EN 1 2 2-1:2 1

10 Retests

S e EN 1 2 2-1:2 1

11 Marking

S e EN 1 2 2-1:2 1

Table 1 — He t tr eatment

Ste l g ra e

Heat

tr eatment

a

A us enitizing

or normalzing

Tempe ing

Ste l

name

Ste l numbe

°C

C ol ng in

b

°C

a

+N = normalz d, +Q T = q enched an tempered

b

a = air, o = oi, w = water or w ater based medium

c

Limited to teq < 4 mm ( e pr EN 102 2 1:201 , Table A.1)

Ste l designation

% b mas

eq ivalent

value

% b mas Ste l

name

Ste l numbe

C

max

Si

max

Mn

P

max

S f

max

A ltotal

N

max

Cr

ma

C

max

Mo

ma

Nb

max

Ni

max

V

max

Nb +

V

max

P2 5NH 1.047

0,1 0,40

0,8

to

1,5 0,0 5 0,0 0

≥0,0 0 c

0,0 0 0,3 0,2 0,0 0,0 0,3 0,0 0,0 0,41

P2 5Q H 1.047

P3 5NH 1.0 65

0,1 0,5

1,1

to

1,7 0,0 5

0,0 0

≥0,0 0 c

0,0 5

0,3 d

0,3 d

0,0 d

0,0 0,5 0,1 0,1

0,47

P3 5NL1 1.0 6

0,0 8

P3 5Q H1 1.0 7

0,1 0,40

0,9

to

1,5 0,0 5 0,0 0

≥0,0 0 c

0,0 5 0,3 0,3 0,2 0,0

e

0,5 0,1

e

0,1 P3 5Q L1 1.8 68

0,0 0 0,0 8

P3 5Q L2 1.8 69

P 2 NH 1.8 3

0,2 0,60

1,1

to

1,7 0,0 5 0,0 0

≥0,0 0 c

0,0 0 0,3 0,2 0,1 0,0 1,0

0,2 0,2

0,5

P 2 QH 1.8 36

- e

P 60QH 1.8 7

0,1 0,5

1,1

to

1,7 0,0 5 0,0 0

≥0,0 0 c

0,0 5 0,5 0,3 0,5 0,0 1,0 0,1

- e

0,5

P 60Q L1 1.8 7

0,0 0 0,0 8

P 60Q L2 1.8 34

a

Element not lsed in this Table shal not be intentionaly ad ed to the se l without the ap roval of the p rchase ex cept for finishin the c s A ll ap ropriate me sures shal

be taken topr ev ent the ad ition fom scrap or other materials used in se lmakin of these element which may ad er ely afe t the me hanic l properies an usabi ty

b

Table 3 — Per mis ible deviatio s ofthe pr oduct analysis above the max imum or below the

minimum lmits of the requir ement ofcast analysis

Element

Spe ified range

%

Per mis ible deviations

a

%

Mn

a

If several prod ct analy ses ar e c r ied out for one c as an if, in this c se, values for in iv id al element ar e

esablshed which fal outide the permited rang e for the chemic l c mposition, then it is only permis ible that the

v alues either ex ce d the max imum permited value or fal shor t of the minimum permited value It is not a c ptable

for both toap ly for one c s

Table 4 — Mechanical pr oper ties at r oom temper atur e

Ste l g ra e

Heat

a

Thick es of

the

r ulng

se tion

t b

mm

Yield

s r eng th

ReH c

MPa

min

Tensie

s r eng th

Rm

MPa

Elong tion

afe fr actur e

A

%

min Ste l

name

Ste l

numbe

l tr, t

e

7 <t

1 0 <t ≤2 0 2 5

P3 5NH

P3 5NL1

P3 5NL2

1.0 65

1.0 6

1.1 06

+N

P3 5QH1

P3 5QL1

P3 5QL2

1.0 7

1.8 7

1.8 6

+QT

1 0 <t ≤2 0 2 5

e

1 0 <t ≤2 0 345

e,f

P 60QL1

,f

P 60QL2

,f

1.8 7

1.8 7

1.8 6

+QT

1 0 <t ≤2 0 40

a

+A an e led; +N normalz d; +Q T q enched an tempered;+N normalz d an tempered

b

The thick es rang es g iven in this c lumn ap ly for he as he t te ted thick es of forging s with the ruln se tion This is

chara teriz d b r ectang ular shape, a w idth to thick es ratio ≥ 2 an a leng th to thick es ratio ≥ 4 For forg ing s with other

se tions the eq iv alent thick es shal be determined a c r din to EN 102 2 1:2017, A nne A or be ag r eed at the time of

en uiry an order

c

Unti the yield point criteria are harmoniz d in the various national c des, determination of R eH may be repla ed b

determination of Rp ,2 In this c se, Rp ,2 values are 10 MPa lower for ReH values u to 3 5 MPa an 1 MPa low er for R eH

v alues g re ter han 3 5MPa

Table 5 — Minimum impac t ener g y

Ste l

desig nation

Heat

Tr eatment

condition

a,b

Thick es

of the

r ulng

se tion

t

mm

Imp ct ener g y KV2 in J

min

at a tes tempe atur in °C of:

long itu inal Tr ansver sal and t angential

2 d

2 d

P2 5Q H

P3 5Q H1

P 2 Q H

P 60Q H

2 d

2 d

2 d

-

P3 5QL1

P 2 QL1

P 60QL1

2 d

-

2 d

2 d

P3 5QL2

P 60QL2

2 d

2 d

a

+N = normalz d; +Q T = q enched an tempered

b

For temperatures an c oln c on itions, se Table 1

c

Where minimum impa t energ values ar e spe ified for several temper atures, verific tion of the impa t energ y,

u les otherwise ag re d, shal be c r ied out at the temper ature for which the value of 27 J is spe ified Where the

minimum impa t energ value spe ified at the low es temperature is hig her than 27 J, this hig her value shal be verified

d

A minimum impa t energ y value of 4 J may e ag re d at the time of en uiry an order

Table 6 — Minimum 0,2 % pr oofstr ength Rp

,2

v alues at elev a ted temper atur es

Ste l g ra e

Thick es of the r ulng

se tion t

Rp ,2, min in MPa at a Temper atur e in °C of

Ste l

name

Ste l

numbe

3 < t

2 0 < t

P 60Q H

a

1.8 7

a

For the thre g rades P 6 in normalz d c n itions the v alues for the me hanic l properies should be ag re d at the time

of en uiry an or der

A nnex A

Sig nificant te hnical changesto the pr eviousver sion EN 1 22 -4:1 9 ar ls ed below:

1) Updating of the nor mative r efe enc s;

2) Gene aly algnment of the r q ir ment with EN1 2 2 1;

3) Updating of the o tional information’s in cha te 5.2;

4) Ta le 1 containing values and statement on the heat tr atment of the s e ls updated;

5) New Ta le 4 containing values for the me hanical pro er ties at ro m temper atur ;

6) New s e l g radesad ed: P3 5NL an NL ; P3 5Q L1 an QL2; P46 QL1 an QL2;

7) Updating of the values for the chemical comp sition an me hanical pro e ties for the s e l g rades

cover d b this p rt of the EN1 2 2 se ies;

8) New sub Clause 6.7“ Resis anc to hydr og en in uc d c acking ” inse ted in the s an ard;

9) Updating of A nnex ZA in r lationship with EU Dir ctive 2 14/ 8 EU