1、June 2017 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.140.30; 77.140.85!%g$“2680198www
2、.din.deDIN EN 10222-4Steel forgings for pressure purposes Part 4: Weldable fine grain steels with high proof strength;English version EN 102224:2017,English translation of DIN EN 10222-4:2017-06Schmiedestcke aus Stahl fr Druckbehlter Teil 4: Schweigeeignete Feinkornbausthle mit hoher Dehngrenze;Engl
3、ische Fassung EN 102224:2017,Englische bersetzung von DIN EN 10222-4:2017-06Pices forges en acier pour appareils pression Partie 4: Aciers soudables grains fins avec limite dlasticit leve;Version anglaise EN 102224:2017,Traduction anglaise de DIN EN 10222-4:2017-06SupersedesDIN EN 102224:200112www.b
4、euth.deDocument comprises 17 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.06.17 DIN EN 10222-4:2017-06 2 A comma is used as the decimal marker. National foreword This document (EN 10222-4:2017) has been prepared by Technical
5、 Committee ECISS/TC 111 “Steel castings and forgings” (Secretariat: AFNOR, France) of the European Committee for Iron and Steel Standardization (ECISS). The responsible German body involved in its preparation was DIN-Normenausschuss Eisen und Stahl (DIN Standards Committee Iron and Steel), Working C
6、ommittee NA 021-00-10 AA “Steel forgings”. Amendments This standard differs from DIN EN 10222-4:2001-12 as follows: a) normative references have been updated; b) the structure of the standard has been adapted to the requirements of EN 10222-1; c) in 5.2, optional information has been updated; d) in
7、Table 1, values of and information on heat treatment have been updated; e) Table 4 containing values of mechanical properties at room temperature has been included; f) the following new steels have been included: P355NL1 and NL2; P355QL1 and QL2; P460QL1 and QL2; g) information on chemical compositi
8、on and mechanical properties of steels contained in this part of the EN 10222 series has been updated; h) 6.7 “Resistance to hydrogen induced cracking” has been included; i) Annex ZA “Relationship between this European Standard and the Essential Requirements of EU Directive 2014/68/EU” has been upda
9、ted. Previous editions DIN 17103: 1989-10 DIN EN 10222-4: 1999-02, 2001-12 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10222-4 April 2017 ICS 77.140.30; 77.140.85 Supersedes EN 10222-4:1998English Version Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high pr
10、oof strength Pices forges en acier pour appareils pression - Partie 4: Aciers soudables grains fins avec limite d lasticit leve Schmiedestcke aus Stahl fr Druckbehlter - Teil 4: Schweigeeignete Feinkornbausthle mit hoher Dehngrenze This European Standard was approved by CEN on 25 December 2016. CEN
11、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 alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on appli
12、cation 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 made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Man
13、agement 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, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv
14、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Ave
15、nue 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 E2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Classification and designation
16、 4 4.1 Classification . 4 4.2 Designation 4 5 Information to be supplied by the purchaser . 4 5.1 Mandatory information 4 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 Produc
17、t analysis 5 6.4 Mechanical properties . 5 6.5 Surface condition 6 6.6 Internal soundness . 6 6.7 Resistance to hydrogen 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 10222-4:199
18、8 13 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2014/68/EU . 14 Bibliography . 15 EN 10222-4:2017 (E) DIN EN 10222-4:2017-06 3 European foreword This document (EN 10222-4:2017) has been prepared by Technical Committee ECISS/TC 11
19、1 “Steel castings and forgings”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of 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 t
20、he latest by October 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject 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
21、under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements 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 t
22、he following parts under the general title “Steel forgings for pressure purposes”: Part 1: General requirements for open die forgings Part 2: Ferritic and martensitic steels with specified elevated temperature properties Part 3: Nickel steels with specified low temperature properties Part 4: Weldabl
23、e fine grain steels with high proof strength Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels. Annex A provides details about significant technical changes to EN 10222-4:1998. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the follo
24、wing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, N
25、orway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 10222-4:2017 (E) DIN EN 10222-4:2017-06 4 1 Scope This European Standard specifies the technical delivery conditions for forgings for pressure purposes, made of weldable fine g
26、rain steels with high proof strength. NOTE Once this standard is published in the EU Official Journal (OJEU) under Directive 2014/68/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 n
27、ot presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this 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.
28、 The series EN 102221 to EN 102225 is structured so that the data related to different materials is in the part allocated for that material. 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
29、. General information on technical delivery conditions is given in EN 10021. 2 Normative references The following documents, in whole 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 r
30、eferences, the latest edition of the referenced document (including any amendments) applies. EN 10222-1:2017, Steel forgings for pressure 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 Classi
31、fication and designation 4.1 Classification In accordance with the classification system in EN 10020, the steel grades specified in this document are non-alloy quality steels (P285NH, P285QH, P355NH, P355QH1, P355NL1), non-alloy special steel (P355NL2) and alloy special steels (P355QL1, P355QL2, P42
32、0NH, P420QH, P460QH, P460QL1, P460QL2). 4.2 Designation See EN 10222-1:2017. 5 Information to be supplied by the purchaser 5.1 Mandatory information Shall be in accordance with EN 10222-1:2017. EN 10222-4:2017 (E) DIN EN 10222-4:2017-06 5 5.2 Options A number of options are specified in this documen
33、t and listed below. Additionally, the relevant options of EN 10222-1:2017 apply. 1) test temperature for the tensile test at elevated temperature, 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 s
34、ulphur content (see Table 2, footnote f); 5) mechanical properties for grades type P460 in normalized condition (see Table 4 footnote f and 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
35、d); 8) test to evaluate the resistance to hydrogen induced cracking (see 6.7). 6 Requirements 6.1 Steelmaking process and manufacture of the 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
36、1. 6.3 Chemical composition 6.3.1 Cast analysis The chemical composition (cast analysis), determined in accordance with EN 10222-1:2017 shall 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 t
37、han the values specified in Table 3. 6.4 Mechanical properties When heat treated in accordance with Table 1, the mechanical properties shall 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
38、 of specified proof strength at elevated temperature is requested (see option in EN 10222-1:2017), the testing temperature should be agreed at the time of enquiry and order. Otherwise, the test shall be carried out at 300 C. EN 10222-4:2017 (E) DIN EN 10222-4:2017-06 6 6.5 Surface condition See EN 1
39、0222-1:2017. 6.6 Internal soundness See EN 10222-1:2017. 6.7 Resistance to hydrogen induced cracking Steels covered by this standard may be susceptible to cracking when exposed to corrosive H2S containing environments, usually referred to as sour service“. A test to evaluate the resistance to hydrog
40、en 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 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. EN 10222-4:2017 (E) DIN EN 10222-4:201
41、7-06 7 Table 1 Heat treatment Steel grade Heat treatmentaAustenitizing or normalizing Tempering Steel name Steel number Temperature C Cooling inbTemperature 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 P355N
42、L2c1.1106 +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, 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 +
43、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 = water 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
44、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 one cast and if, in this case, values for individual elements are established which fall outside the permitted range for the chemical composition, t
45、hen 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 for both to apply for one cast. EN 10222-4:2017 (E) DIN EN 10222-4:2017-06 10 Table 4 Mechanical properties at room temperature Steel grade Heat tre
46、atmentaThickness of the ruling section tRbmm Yield strength ReHcMPa min. Tensile strength Rm MPa Elongation after fracture Ad% min Steel name Steel number l 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
47、 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 +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
48、.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 in t
49、his column apply for the as heat treated thickness of forgings with the ruling section. This is characterized by rectangular shape, a width to thickness ratio 2 and a length to thickness ratio 4. For forgings with other sections the equivalent thickness shall be determined according to EN 102221:2017, Annex A or be agreed at the time of enquiry and order. cUn
