EN 10222-4-2017 en Steel forgings for pressure purposes - Part 4 Weldable fine grain steels with high proof strength《承压钢锻件-第4部分 高弹限强度可焊接细晶钢》.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Steel forgings for pressure purposesPart 4: Weldable fine grain steels with high proof strengthBS EN 102224:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10222-4 April 2017 ICS 77.140.30; 77.140.85 Supersedes

2、 EN 10222-4:1998English Version Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength Pices forges en acier pour appareils pression - Partie 4: Aciers soudables grains fins avec limite dlasticit leve Schmiedestcke aus Stahl fr Druckbehlter - Teil 4: Schwe

3、igeeignete Feinkornbaussthle mit hoher Dehngrenze This European Standard was approved by CEN on 25 December 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any a

4、lteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language

5、made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Es

6、tonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTE

7、E FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10222-4:2017 ENational forewo

8、rdThis British Standard is the UK implementation of EN 10222-4:2017. It supersedes BS EN 10222-4:1999, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/111, Steel Castings and Forgings.A list of organizations represented on this committee can be obt

9、ained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.ISBN 978 0 580 80527 1ICS 77.140.30; 77.140.85Compliance with a British Standard cannot confer immunity from legal obligations.

10、 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2017.Amendments/corrigenda issued since publicationDate Text affected BRITISH STANDARDBS EN 102224:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10222-4 April 2017 ICS 77.140.

11、30; 77.140.85 Supersedes EN 10222-4:1998English Version Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength Pices forges en acier pour appareils pression - Partie 4: Aciers soudables grains fins avec limite dlasticit leve Schmiedestcke aus Stahl fr Druc

12、kbehlter - Teil 4: Schweigeeignete Feinkornbaussthle mit hoher Dehngrenze This European Standard was approved by CEN on 25 December 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a nationa

13、l standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A versio

14、n in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Cze

15、ch Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Ki

16、ngdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10222

17、-4:2017 EBS EN 102224:2017EN 10222-4:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Classification and designation 4 4.1 Classification . 4 4.2 Designation 4 5 Information to be supplied by the purchaser . 4 5.1 Mandatory information 4

18、 5.2 Options 5 6 Requirements . 5 6.1 Steelmaking process and manufacture of the product 5 6.2 Delivery condition 5 6.3 Chemical composition . 5 6.3.1 Cast analysis 5 6.3.2 Product analysis 5 6.4 Mechanical properties . 5 6.5 Surface condition 6 6.6 Internal soundness . 6 6.7 Resistance to hydrogen

19、induced cracking . 6 7 Inspection 6 8 Sampling . 6 9 Test methods 6 10 Retests . 6 11 Marking . 6 Annex A (informative) Significant technical changes to the version EN 10222-4:1998 13 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 20

20、14/68/EU . 14 Bibliography . 15 BS EN 102224:2017EN 10222-4:2017 (E) 3 European foreword This document (EN 10222-4:2017) has been prepared by Technical Committee ECISS/TC 111 “Steel castings and forgings”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of

21、 a national standard, either by publication of an identical text or by endorsement, at the latest by October 2017, and conflicting national standards shall be withdrawn at the latest by October 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject

22、of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10222-4:1998. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential require

23、ments of EU Directive 2014/68/EU. For relationship with EU Directive 2014/68/EU, see informative Annex ZA, which is an integral part of this document. EN 10222 consists of the following parts under the general title “Steel forgings for pressure purposes”: Part 1: General requirements for open die fo

24、rgings Part 2: Ferritic and martensitic steels with specified elevated temperature properties Part 3: Nickel steels with specified low temperature properties Part 4: Weldable fine grain steels with high proof strength Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels. Annex A

25、provides details about significant technical changes to EN 10222-4:1998. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denm

26、ark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN

27、102224:2017EN 10222-4:2017 (E) 4 1 Scope This European Standard specifies the technical delivery conditions for forgings for pressure purposes, made of weldable fine grain steels with high proof strength. NOTE Once this standard is published in the EU Official Journal (OJEU) under Directive 2014/68/

28、EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in thi

29、s material standard against the design requirements of this specific item of equipment to verify that the ESRs of Directive 2014/68/EU are satisfied, needs to be done. The series EN 102221 to EN 102225 is structured so that the data related to different materials is in the part allocated for that ma

30、terial. The presumption of conformity to the Essential Safety Requirements of Directive 2014/68/EU depends on both the text in part 1 and the data in part 2, 3, 4 or 5. General information on technical delivery conditions is given in EN 10021. 2 Normative references The following documents, in whole

31、 or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10222-1:2017, Steel forgings for pres

32、sure purposes Part 1: General requirements 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 10222-1:2017 apply. 4 Classification and designation 4.1 Classification In accordance with the classification system in EN 10020, the steel grades specified in t

33、his document are non-alloy quality steels (P285NH, P285QH, P355NH, P355QH1, P355NL1), non-alloy special steel (P355NL2) and alloy special steels (P355QL1, P355QL2, P420NH, P420QH, P460QH, P460QL1, P460QL2). 4.2 Designation See EN 10222-1:2017. 5 Information to be supplied by the purchaser 5.1 Mandat

34、ory information Shall be in accordance with EN 10222-1:2017. BS EN 102224:2017EN 10222-4:2017 (E) 5 5.2 Options A number of options are specified in this document and listed below. Additionally, the relevant options of EN 10222-1:2017 apply. 1) test temperature for the tensile test at elevated tempe

35、rature, if applicable (see 6.4); 2) carbon equivalent for non-alloy steels (see Table 2, footnote b); 3) higher Al content (see Table 2, footnote c); 4) higher sulphur content (see Table 2, footnote f); 5) mechanical properties for grades type P460 in normalized condition (see Table 4 footnote f and

36、 Table 6, footnote a); 6) different test temperature for the min. impact energy (see Table 5, footnote c); 7) minimum impact energy values (see Table 5 footnote d); 8) test to evaluate the resistance to hydrogen induced cracking (see 6.7). 6 Requirements 6.1 Steelmaking process and manufacture of th

37、e product Shall be in accordance with EN 10222-1:2017. 6.2 Delivery condition The products shall be delivered in the heat treatment condition specified in Table 1. 6.3 Chemical composition 6.3.1 Cast analysis The chemical composition (cast analysis), determined in accordance with EN 10222-1:2017 sha

38、ll conform to the requirements of Table 2. 6.3.2 Product analysis The product analysis shall not deviate from the specified cast analysis (see Table 2) by more than the values specified in Table 3. 6.4 Mechanical properties When heat treated in accordance with Table 1, the mechanical properties shal

39、l conform to the requirements of Tables 4 and 5. Elevated temperature proof strength (RP0,2) values shall conform to the requirements of Table 6. If verification of specified proof strength at elevated temperature is requested (see option in EN 10222-1:2017), the testing temperature should be agreed

40、 at the time of enquiry and order. Otherwise, the test shall be carried out at 300 C. BS EN 102224:2017EN 10222-4:2017 (E) 6 6.5 Surface condition See EN 10222-1:2017. 6.6 Internal soundness See EN 10222-1:2017. 6.7 Resistance to hydrogen induced cracking Steels covered by this standard may be susce

41、ptible to cracking when exposed to corrosive H2S containing environments, usually referred to as sour service“. A test to evaluate the resistance to hydrogen induced cracking in accordance with EN 10229 may be agreed at the time of enquiry and order. 7 Inspection See EN 10222-1:2017. 8 Sampling See

42、EN 10222-1:2017. 9 Test methods See EN 10222-1:2017. 10 Retests See EN 10222-1:2017. 11 Marking See EN 10222-1:2017. BS EN 102224:2017EN 10222-4:2017 (E) 7 Table 1 Heat treatment Steel grade Heat treatmentaAustenitizing or normalizing Tempering Steel name Steel number Temperature C Cooling inbTemper

43、ature C P285NH 1.0477 +N 880 to 960 a P285QH 1.0478 +QT 860 to 940 o, w 600 to 700 P355NH 1.0565 +N 880 to 960 a P355NL1c1.0566 +N 880 to 960 a P355NL2c1.1106 +N 880 to 960 a P355QH1 1.0571 +QT 860 to 940 o, w 600 to 700 P355QL1 1.8868 +QT 860 to 940 o, w 600 to 700 P355QL2 1.8869 +QT 860 to 940 o,

44、w 600 to 700 P420NHc1.8932 +N 880 to 960 a P420QH 1.8936 +QT 860 to 940 o, w 600 to 700 P460QH 1.8871 +QT 860 to 940 o, w 600 to 700 P460QL1 1.8872 +QT 860 to 940 o, w 600 to 700 P460 QL2 1.8864 +QT 860 to 940 o, w 600 to 700 a+N = normalized, +QT = quenched and tempered. ba = air, o = oil, w = wate

45、r or water based medium. cLimited to teq 1,00 to 1,70 0,10 P 0,025 + 0,005 S 0,010 + 0,003 Al 0,020 to 0,050 0,005 N 0,025 + 0,002 Cr 0,50 + 0,05 Mo 0,10 + 0,03 Cu 0,20 + 0,05 Nb 0,05 + 0,01 Ni 1,00 + 0,05 Ti 0,03 + 0,01 V 0,20 + 0,01 Nb +V 0,22 +0,02 aIf several product analyses are carried out for

46、 one cast and if, in this case, values for individual elements are established which fall outside the permitted range for the chemical composition, then it is only permissible that the values either exceed the maximum permitted value or fall short of the minimum permitted value. It is not acceptable

47、 for both to apply for one cast. BS EN 102224:2017EN 10222-4:2017 (E) 10 Table 4 Mechanical properties at room temperature Steel grade Heat treatmentaThickness of the ruling section tRbmm Yield strength ReHcMPa min. Tensile strength Rm MPa Elongation after fracture Ad% min Steel name Steel number l

48、tr, t P285NH 1.0477 +N tR 16 285 390 to 510 24 23 16 tR 35 275 35 tR 70 260 P285QHe1.0478 +QT 70 tR 100 245 370 to 510 22 21 100 tR 250 225 250 tR 400 205 P355NH P355NL1 P355NL2 1.0565 1.0566 1.1106 +N tR 16 355 490 to 630 23 21 16 tR 35 345 35 tR 70 330 P355QH1eP355QL1eP355QL2e1.0571 1.8872 1.8864

49、+QT 70 tR 100 315 470 to 630 21 19 100 tR 250 295 250 tR 400 275 P420NH 1.8932 +N tR 16 420 530 to 680 20 19 16 tR 35 410 35 tR 70 390 P420QHe1.8936 +QT 70 tR 100 375 510 to 670 18 17 100 tR 250 345 250 tR 400 325 P460QHe,fP460QL1e,fP460QL2e,f1.8871 1.8872 1.8864 +QT tR 100 420 520 to 710 18 16 100 tR 250 400 250 tR 400 380 a+A annealed; +N normalized; +QT quenched and tempered; +NT normalized and tempered. bThe thickness ranges given