SIST EN 10028-3:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QRUPDOL]LUDQDFlacherzeugnisse aus Druckbehälterstählen - Teil 3: Schweißgeeignete Feinkornbaustähle, normalgeglühtProduits plats en aciers pour appareils à pression - Partie 3: Aciers soudables à grains fins, normalisésFlat products made of steels for pressure purposes - Part 3: Weldable fine grain steels, normalized77.140.50SROL]GHONLFlat steel products and semi-products77.140.30Jekla za uporabo pod tlakomSteels for pressure purposesICS:Ta slovenski standard je istoveten z:EN 10028-3:2009SIST EN 10028-3:2009en,fr,de01-september-2009SIST EN 10028-3:2009SLOVENSKI
STANDARDSIST EN 10028-3:20031DGRPHãþD



SIST EN 10028-3:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10028-3June 2009ICS 77.140.30; 77.140.50Supersedes EN 10028-3:2003
English VersionFlat products made of steels for pressure purposes - Part 3:Weldable fine grain steels, normalizedProduits plats en aciers pour appareils à pression - Partie3: Aciers soudables à grains fins, normalisésFlacherzeugnisse aus Druckbehälterstählen - Teil 3:Schweißgeeignete Feinkornbaustähle, normalgeglühtThis European Standard was approved by CEN on 14 May 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-3:2009: ESIST EN 10028-3:2009



EN 10028-3:2009 (E) 2 Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Dimensions and tolerances on dimensions . 4 5 Calculation of mass . 4 6 Classification and designation . 4 6.1 Classification . 4 6.2 Designation . 5 7 Information to be supplied by the purchaser . 5 7.1 Mandatory information . 5 7.2 Options . 5 7.3 Example for ordering . 5 8 Requirements . 6 8.1 Steelmaking process . 6 8.2 Delivery condition . 6 8.3 Chemical composition . 6 8.4 Mechanical properties . 9 8.5 Surface condition. 9 8.6 Internal soundness . 9 8.7 Resistance to hydrogen induced cracking . 10 9 Inspection . 10 9.1 Types of inspection and inspection documents . 10 9.2 Tests to be carried out . 10 9.3 Retests . 10 10 Sampling . 10 11 Test methods . 10 12 Marking . 10 Annex A (normative)
Evaluation of resistance to hydrogen induced cracking . 14 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 15 Bibliography . 16
SIST EN 10028-3:2009



EN 10028-3:2009 (E) 3 Foreword This document (EN 10028-3:2009) has been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes - Qualities”, the secretariat of which is held by DIN. 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 December 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10028-3:2003. This European Standard consists of the following parts, under the general title Flat products made of steels for pressure purposes:  Part 1: General requirements  Part 2: Non-alloy and alloy steels with specified elevated temperature properties  Part 3: Weldable fine grain steels, normalized  Part 4: Nickel alloy steels with specified low temperature properties  Part 5: Weldable fine grain steels, thermomechanically rolled  Part 6: Weldable fine grain steels, quenched and tempered  Part 7: Stainless steels NOTE The clauses marked by two points (••) contain information relating to agreements that may be made at the time of enquiry and order. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 97/23/EC. For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 10028-3:2009



EN 10028-3:2009 (E) 4 1 Scope This European Standard specifies requirements for flat products for pressure equipment made of weldable fine grain steels as specified in Table 1. NOTE 1 Fine grain steels are understood as steels with a ferritic grain size of 6 or finer when tested in accordance with
EN ISO 643. The requirements and definitions of EN 10028-1:2007 + A1:2009 also apply. NOTE 2 Once this European Standard is published in the EU Official Journal (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials in this European Standard (Part 1 and this Part 3 of the series) and does not 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 97/23/EC are satisfied, needs to be done. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10028-1:2007 + A1:2009, Flat products made of steels for pressure purposes – Part 1: General requirements EN 10204:2004, Metallic products – Types of inspection documents EN 10229:1998, Evaluation of resistance of steel products to hydrogen induced cracking (HIC) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10028-1:2007 + A1:2009 apply. 4 Dimensions and tolerances on dimensions See EN 10028-1:2007 + A1:2009. 5 Calculation of mass See EN 10028-1:2007 + A1:2009. 6 Classification and designation 6.1 Classification 6.1.1 The steel grades covered by this document are given in four qualities: a) room temperature quality (P . N), b) elevated temperature quality (P.NH), c) low temperature quality (P.NL1) and d) special low temperature quality (P.NL2). SIST EN 10028-3:2009



EN 10028-3:2009 (E) 5 6.1.2 The grades P275NH, P275NL1, P355N, P355NH and P355NL1 are non-alloy quality steels, the grades P275NL2 and P355NL2 are non-alloy special steels and the grades P460NH, P460NL1 and P460NL2 are alloy special steels. 6.2 Designation See EN 10028-1:2007 + A1:2009. 7 Information to be supplied by the purchaser 7.1 Mandatory information See EN 10028-1:2007 + A1:2009. 7.2 Options A number of options are specified in this document and listed below. Additionally the relevant options of
EN 10028-1:2007 + A1:2009 apply. If the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the products shall be supplied in accordance with the basic specification (see also EN 10028-1:2007 + A1:2009). 1) tests in the simulated normalized condition (see 8.2.2); 2) delivery of products in the untreated condition (see 8.2.3); 3) maximum carbon equivalent value (see 8.3.3); 4) tensile properties for increased product thicknesses (see Table 4, footnote c); 5) modified values for ReH and Rm
for grades P460NH and P460NL1 (see Table 4, footnote d)
6) application of the Rp0,2 values of Table 5 for the corresponding P.NL1 and P…NL2 grade (see 8.4.2); 7) Rp0,2 values at elevated temperatures for increased product thicknesses (see Table 5, footnote b); 8) specification of a minimum impact energy of 40 J (see NOTE to 8.4.1 and Table 6); 9) HIC test in accordance with EN 10229 (see 8.7); 10) mid thickness test pieces for the impact test (see Clause 10); 11) verification of impact energy for longitudinal test pieces (see clause 11); 12) use of test solution B for the HIC test with agreed acceptance criteria (see Annex A). 7.3 Example for ordering 10 plates with nominal dimensions, thickness = 50 mm, width = 2000 mm, length = 10 000 mm, made of a steel grade with the name P275NL2 and the number 1.1104 as specified in EN 10028-
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