Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties

This EN 10028-2 specifies requirements for flat products for pressure equipment made of weldable non-alloy and alloy steels with elevated temperature properties as specified in Table 1.
The requirements and definitions of EN 10028-1:2000 also apply.

Flacherzeugnisse aus Druckbehälterstählen - Teil 2: Unlegierte und legierte Stähle mit festgelegten Eigenschaften bei erhöhten Temperaturen

Diese Europäische Norm enthält die Anforderungen an Flacherzeugnisse für Druckbehälter aus den schweißgeeigneten unlegierten und legierten Stählen, die in Tabelle 1 festgelegt sind.
Zusätzlich gelten die Anforderungen und Begriffe in EN10028-1:2000.

Produits plats en aciers pour appareils à pression - Partie 2: Aciers non alliés et alliés avec caractéristiques spécifiées à température élevée

Ploščati izdelki iz jekel za tlačne posode – 2. del: Nelegirana in legirana jekla s specificiranimi lastnostmi pri povišanih temperaturah

General Information

Status
Withdrawn
Publication Date
17-Jun-2003
Withdrawal Date
16-Jun-2009
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
17-Jun-2009
Completion Date
17-Jun-2009

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature propertiesProduits plats en aciers pour appareils a pression - Partie 2: Aciers non alliés et alliés avec caractéristiques spécifiées a température élevéeFlacherzeugnisse aus Druckbehälterstählen - Teil 2: Unlegierte und legierte Stähle mit festgelegten Eigenschaften bei erhöhten TemperaturenTa slovenski standard je istoveten z:EN 10028-2:2003SIST EN 10028-2:2003en77.140.5077.140.30ICS:SIST EN 10028-2:19961DGRPHãþDSLOVENSKI
STANDARDSIST EN 10028-2:200301-november-2003







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10028-2June 2003ICS 77.140.30; 77.140.50Supersedes EN 10028-2:1992English versionFlat products made of steels for pressure purposes - Part 2:Non-alloy and alloy steels with specified elevated temperaturepropertiesProduits plats en aciers pour appareils à pression - Partie2: Aciers non alliés et alliés avec caractéristiquesspécifiées à température élevéeFlacherzeugnisse aus Druckbehälterstählen - Teil 2:Unlegierte und legierte Stähle mit festgelegtenEigenschaften bei erhöhten TemperaturenThis European Standard was approved by CEN on 20 February 2003.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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-2:2003 E



EN 10028-2:2003 (E)2ContentsPageForeword.31Scope.42Normative references.43Terms and definitions.44Dimensions and tolerances on dimensions.45Calculation of mass.46Classification and designation.46.1Classification.46.2Designation.47Information to be supplied by the purchaser.57.1Mandatory information.57.2Options.57.3Example for ordering.58Requirements.68.1Steelmaking process.68.2Delivery condition.68.3Chemical composition.68.4Mechanical properties.88.5Surface condition.98.6Internal soundness.98.7Resistance to hydrogen induced cracking.98.8Embrittlement of CrMo steels.99Inspection.99.1Types of inspection and inspection documents.99.2Tests to be carried out.99.3Retests.910Sampling.911Test methods.1012Marking.10Annex A (informative)
Guidelines for heat treatment.15Annex B (informative)
Critical time temperature parameter Pcrit. and possible combinations of stressrelieving temperature and holding time.16Annex C (informative)
Reference data of strength for 1 % (plastic) creep strain and creep rupture.17Annex D (normative)
Evaluation of resistance to hydrogen induced cracking.22Annex E (normative)
Step cooling test.23Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.24Bibliography.25



EN 10028-2:2003 (E)3ForewordThis document (EN 10028-2:2003) has been prepared by Technical Committee ECISS /TC 22, "Steels for pressurepurposes - 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 orby endorsement, at the latest by December 2003, and conflicting national standards shall be withdrawn at the latestby December 2003.This document supersedes EN 10028-2:1992.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.This European Standard consists of the following parts, under the general title Flat products made of steels forpressure purposes:Part 1: General requirementsPart 2: Non-alloy and alloy steels with specified elevated temperature propertiesPart 3: Weldable fine grain steels, normalizedPart 4: Nickel alloy steels with specified low temperature propertiesPart 5: Weldable fine grain steels, thermomechanically rolledPart 6: Weldable fine grain steels, quenched and temperedPart 7: Stainless steelsNOTEThe clauses marked by two points () contain information relating to agreements that may be made at the time ofenquiry and order.Annexes A, B, C are for information only. Annexes D and E are normative.This document includes a bibliography.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.



EN 10028-2:2003 (E)41 ScopeThis European Standard specifies requirements for flat products for pressure equipment made of weldable non-alloy and alloy steels with elevated temperature properties as specified in Table 1.The requirements and definitions of EN 10028-1 also apply.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 10028-1:2000 + A1:2002, Flat products made of steels for pressure purposes – Part 1: General requirements.EN 10204, Metallic products – Types of inspection documents.EN 10229, Evaluation of resistance of steel products to hydrogen induced cracking (HIC).3 Terms and definitionsFor the purposes of this European Standard the terms and definitions given in EN 10028-1 apply.4 Dimensions and tolerances on dimensionsSee EN 10028-1.5 Calculation of massSee EN 10028-1.6 Classification and designation6.1ClassificationIn accordance with EN 10020, the grades P235GH, P265GH, P295GH and P355GH are non-alloy quality steels.All other grades are alloy special steels.6.2DesignationSee EN 10028-1.



EN 10028-2:2003 (E)57 Information to be supplied by the purchaser7.1 Mandatory informationSee EN 10028-1.7.2 OptionsA number of options are specified in this standard and listed below. Additionally the relevant options of EN 10028-1apply. 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).a) lower copper content and maximum tin content (see Table 1, footnote b);b) minimum chromium content of 0,80% (see Table 1, footnote f);c) maximum carbon content of 0,17% for product thicknesses greater than 150 mm (seeTable 1, footnote g);d) tests in the simulated normalized condition (see 8.2.2);e) delivery conditions deviating from those specified in Table 3 (see 8.2.2 and 8.2.3);f) maximum carbon equivalent value for P235GH, P265GH, P295GH and P355GH (see 8.3.3);g) HIC test in accordance with EN 10229 (see 8.7);h) step cooling test in accordance with annex E (see 8.8);i) mid thickness test pieces for the impact test (see clause 10);j) mechanical properties for product thicknesses > 250 mm (see Table 3, footnote a);k) specification of the delivery condition +QT where the usual delivery condition is +NT (see Table 3, footnotec and Table 4, footnote c);l) additional impact energy values (see Table 3, footnote f);m) Rp0,2 values at elevated temperature for increased product thicknesses (see Table 4, footnote b).7.3 Example for ordering10 plates with nominal dimensions, thickness = 50 mm, width = 2 000 mm, length = 10 000 mm, made of a steelgrade with the name 16Mo3 and the number 1.5415 as specified in EN 10028-2, to be delivered untreated,inspection document 3.1.B as specified in EN 10204:10 plates – 50 x 2 000 x 10 000 – EN 10028-2 16Mo3+AR - Inspection document 3.1.Bor10 plates – 50 x 2 000 x 10 000 – EN 10028-2 1.5415+AR – Inspection document 3.1.B



EN 10028-2:2003 (E)68 Requirements8.1 Steelmaking processSee EN 10028-1.8.2
Delivery condition8.2.1Unless otherwise agreed at the time of enquiry and order, the products covered by this standard shall besupplied in the usual conditions given in Table 3 (see 8.2.3).8.2.2 Normalizing may, at the discretion of manufacturer, be replaced with normalizing rolling for the steelgrades P235GH, P265GH, P295GH and P355GH. In this case, tests in the simulated normalized condition with anagreed frequency of testing may be agreed at the time of enquiry and order to verify that the specified propertiesare complied with.8.2.3 If so agreed at the time of enquiry and order, products made of steel grades P235GH, P265GH,P295GH, P355GH and 16Mo3 may also be delivered in the untreated condition. Products made of one of the otheralloy grades may be supplied in the tempered or normalized condition or, in exceptional cases, in the untreatedcondition if so agreed (Annex A contains heat treatment information for the purchaser).In these cases, testing shall be carried out on test pieces in the usual delivery condition as indicated in Table 3.NOTEThe testing of the test pieces in a simulated heat treated condition does not discharge the processor from theobligation of providing proof of the specified properties in the finished product.8.2.4Information on welding is given in EN 1011-1 and EN 1011-2.NOTEExcessive post weld heat treatment (PWHT) conditions can decrease the mechanical properties. When in stressrelieving the intended time temperature parameterP = Ts (20 + lg t)
10-3 ,whereTs is the stress relieving temperature in K andt is the holding time in hours,is exceeding the critical (Pcrit.) values in annex B, the purchaser should in his enquiry and order inform the manufactureraccordingly and, where appropriate, tests on simulated heat treated samples can be agreed to check whether after such atreatment the properties specified in this European Standard can still be regarded as valid.8.3 Chemical composition8.3.1The requirements of Table 1 shall apply for the chemical composition according to the cast analysis.8.3.2The product analysis shall not deviate from the specified values for the cast analysis as specified in Table 1by more than the values given in Table 2.8.3.3 A maximum value for the carbon equivalent may be agreed upon at the time of enquiry and order forsteel grades P235GH, P265GH, P295GH and P355GH. In this case, the following formula shall apply forcalculation of the carbon equivalent value (CEV):15CuNi5VMoCr6MnCCEV



EN 10028-2:2003 (E)7Table 1 — Chemical composition (cast analysis) aSteel grade% by massnamenumberCSiMnPmax.Smax.AltotalNCrCubMoNbNiTimax.VOthersP235GH1.0345 0,16 0,350,60c to 1,200,0250,015 0,020 0,012d 0,30 0,30 0,08 0,020 0,300,03 0,02P265GH1.0425 0,20 0,400,80c to 1,400,0250,015 0,020 0,012d 0,30 0,30 0,08 0,020 0,300,03 0,02P295GH1.04810,08 to 0,20 0,400,90c to 1,500,0250,015 0,020 0,012d 0,30 0,30 0,08 0,020 0,300,03 0,02P355GH1.04730,10 to 0,22 0,601,10 to 1,700,0250,015 0,020 0,012d 0,30 0,30 0,08 0,020 0,300,03 0,02Cr+Cu+Mo+Ni:
0,7016Mo31.54150,12 to 0,20 0,350,40 to 0,900,0250,010e 0,012 0,30 0,300,25 to 0,35- 0,30---18MnMo4-51.5414 0,20 0,400,90 to 1,500,0150,005e 0,012 0,30 0,300,45 to 0,60- 0,30---20MnMoNi4-51.63110,15 to 0,23 0,401,00 to 1,500,0200,010e 0,012 0,20 0,200,45 to 0,60-0,40 to 0,80- 0,02-15NiCuMoNb5-6-41.6368 0,170,25 to 0,500,80 to 1,200,0250,010 0,015 0,020 0,300,50 to 0,800,25 to 0,500,015 to0,0451,00 to 1,30---13CrMo4-51.73350,08 to 0,18 0,350,40 to 1,000,0250,010e 0,0120,70f to 1,15 0,300,40 to 0,60-----13CrMoSi5-51.7336 0,170,50 to 0,800,40 to 0,650,0150,005e 0,0121,00 to 1,50 0,300,45 to 0,65-0,30---10CrMo9-101.73800,08 to 0,14g 0,500,40 to 0,800,0200,010e 0,0122,00 to 2,50 0,300,90 to 1,10-----12CrMo9-101.73750,10 to 0,15 0,300,30 to 0,800,0150,0100,010to0,040 0,0122,00 to 2,50 0,250,90 to 1,10- 0,30---X12CrMo51.73620,10 to 0,15 0,500,30 to 0,600,0200,005e 0,0124,00 to 6,00 0,300,45 to 0,65- 0,30---13CrMoV9-101.77030,11 to 0,15 0,100,30 to 0,600,0150,005e 0,0122,00 to 2,50 0,200,90 to 1,10 0,07 0,250,030,25 to 0,35 0,002 B 0,015Ca12CrMoV12-101.77670,10 to 0,15 0,150,30 to 0,600,0150,005e 0,0122,75 to 3,25 0,250,90 to 1,10 0,07h 0,250,03h0,20 to 0,30 0,003Bh 0,015CahX10CrMoVNb9-11.49030,08 to 0,12 0,500,30 to 0,600,0200,005 0,0400,030 to 0,0708,00 to 9,50 0,300,85 to 1,050,06 to 0,10 0,30-0,18 to 0,25-aElements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate measures shall be taken to prevent the addition from scrap
or other materials used in steelmaking of these elements which may affect the mechanical properties and usability.b A lower maximum copper content and/or a maximum sum of copper and tin content, e.g. Cu + 6 Sn
0,33%, may be agreed upon at the time of enquiry and order, e.g. with regard to hot formability for the grades where only a
maximum copper content is specified.cFor product thicknesses < 6 mm, a minimum manganese content of 0,20 % lower than specified is permitted.dA ratio NAl 2 shall apply.eThe Al content of the cast shall be determined and given in the inspection document.f If resistance to pressurized hydrogen is of importance, a minimum content of 0,80% Cr may
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