SIST EN 10028-7:2016

Flat products made of steels for pressure purposes - Part 7: Stainless steels

This European Standard specifies requirements for flat products for pressure purposes made of stainless steels, including austenitic creep resisting steels, in thicknesses as indicated in Tables 7 to 10.
The requirements of EN 10028-1:2007+A1:2009 also apply.
NOTE 1   The steel grades covered by this European Standard have been selected from EN 10088-1.
NOTE 2   Once this European Standard is published in the Official Journal of the European Union (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 Part 7) 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 the Pressure Equipment Directive are satisfied, needs to be done.

Flacherzeugnisse aus Druckbehälterstählen - Teil 7: Nichtrostende Stähle

Diese Europäische Norm enthält die Anforderungen an Flacherzeugnisse für Druckbehälter aus nichtrostenden Stählen, einschließlich von austenitischen hochwarmfesten Stählen, mit den in den Tabellen 7 bis 10 angegebenen Dicken.
Zusätzlich gelten die Angaben in EN 10028-1:2007+A1:2009.
ANMERKUNG 1   Die Stahlsorten nach dieser Europäischen Norm wurden aus EN 10088-1 ausgewählt.
ANMERKUNG 2   Nach Veröffentlichung dieser Norm im EU-Amtsblatt (OJEU) ist die Annahme ihrer Konformität mit den grundlegenden Anforderungen (ESR) der Richtlinie 97/23/EG auf die technischen Daten  von Werkstoffen in dieser Norm (Teil 1 und Teil 7) beschränkt, und es darf nicht angenommen werden, dass damit die Eignung des Werkstoffs für ein bestimmtes Ausrüstungsteil festgestellt ist. Folglich müssen die in dieser Werkstoffnorm angegebenen technischen Parameter im Hinblick auf die konstruktiven Anforderungen dieses bestimmten Ausrüstungsteils ermittelt werden, um damit zu verifizieren, dass den ESR der Richtlinie 97/23/EG entsprochen wird.

Produits plats en aciers pour appareils à pression - Partie 7: Aciers inoxydables

La présente Norme européenne spécifie les prescriptions relatives aux produits plats pour appareils à pression en aciers inoxydables, y compris les aciers austénitiques résistants au fluage dans les épaisseurs indiquées aux Tableaux 7 à 10.
Les prescriptions de l'EN 10028-1+A1 :2009 s'appliquent également.
NOTE 1   Les nuances d’acier comprises dans cette norme ont été sélectionnées à partir de l’EN 10088-1.
NOTE 2   Une fois la norme européenne publiée dans le Journal Officiel de l’Union Européenne (JOUE), sous la Directive 97/231 EC, la présomption de conformité aux exigences essentielles de sécurité (ESRS) de la Directive 97/23/EC est limitée aux données techniques des matériaux de cette norme européenne (parties 1 à 7) et ne présume pas l’adéquation du matériau à un équipement spécifique. Par conséquent, l’évaluation des données techniques indiquées par cette norme de matériaux à l’égard des exigences de conceptions d’équipements spécifiques, afin de vérifier que les (ESRS) de la Directives des équipements sous pression sont satisfaites, doit être faite.

Ploščati jekleni izdelki za tlačne posode - 7. del: Nerjavna jekla

Ta evropski standard določa zahteve za debelino ploščatih izdelkov za tlačne posode iz nerjavnega jekla, vključno z avstentnim jeklom, ki je odporno proti lezenju, kot je navedeno v preglednicah od 7 do 10.
Uporabljajo se tudi zahteve standarda EN 10028-1:2007+A1:2009.
OPOMBA 1: razredi jekla, ki so zajeti v tem evropskem standardu, so bili izbrani iz standarda EN 10088-1.
OPOMBA 2: ko bo ta evropski standard objavljen v Uradnem listu Evropske unije (OJEU) v okviru Direktive 97/23/ES, bodo zagotovila o skladnosti z osnovnimi varnostnimi zahtevami (ESR) Direktive 97/23/ES omejena na tehnične podatke o materialih, navedene v tem evropskem standardu (dela 1 in 7), standard pa ne bo zagotavljal ustreznosti materiala za določen element opreme. Zato bo potrebno oceniti tehnične podatke, podane v tem standardu za materiale, glede na zahteve zasnove določenega elementa opreme, da se zagotovi, da so osnovne varnostne zahteve Direktive o tlačni opremi spoštovane.

General Information

• Status: Published
• Public Enquiry End Date: 31-Jan-2014
• Publication Date: 16-Aug-2016
• ICS: 77.140.20 - Stainless steels
• ICS: 77.140.30 - Steels for pressure purposes
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Jul-2016
• Due Date: 02-Oct-2016
• Completion Date: 17-Aug-2016
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: EN 10028-7:2016 - Flat products made of steels for pressure purposes - Part 7: Stainless steels

Relations

• Revised: SIST EN 10028-7:2008 - Flat products made of steels for pressure purposes - Part 7: Stainless steels
• Effective Date: 01-Jan-2014
• Replaces: SIST EN 10028-7:2008 - Flat products made of steels for pressure purposes - Part 7: Stainless steels
• Effective Date: 20-Jul-2016

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.DFlacherzeugnisse aus Druckbehälterstählen - Teil 7: Nichtrostende StähleProduits plats en aciers pour appareils à pression - Partie 7: Aciers inoxydablesFlat products made of steels for pressure purposes - Part 7: Stainless steels77.140.50SROL]GHONLFlat steel products and semi-products77.140.30Jekla za uporabo pod tlakomSteels for pressure purposes77.140.20Visokokakovostna jeklaStainless steelsICS:Ta slovenski standard je istoveten z:EN 10028-7:2016SIST EN 10028-7:2016en,fr,de01-september-2016SIST EN 10028-7:2016SLOVENSKI
STANDARDSIST EN 10028-7:20081DGRPHãþD



SIST EN 10028-7:2016



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10028-7
July 2016 ICS 77.140.30; 77.140.50 Supersedes EN 10028-7:2007
English Version
Flat products made of steels for pressure purposes - Part 7: Stainless steels
Produits plats en aciers pour appareils à pression - Partie 7: Aciers inoxydables
Flacherzeugnisse aus Druckbehälterstählen - Teil 7: Nichtrostende Stähle This European Standard was approved by CEN on 15 April 2016.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 2016-07-27.
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 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 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 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, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10028-7:2016 E SIST EN 10028-7:2016



EN 10028-7:2016 (E) 2 Contents
Page European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Tolerances on dimensions . 6 5 Calculation of mass . 7 6 Classification and designation . 7 7 Information to be supplied by the purchaser . 7 7.1 Mandatory information . 7 7.2 Options . 7 7.3 Example for ordering. 7 8 Requirements . 7 8.1 Steelmaking process . 7 8.2 Delivery condition . 7 8.3 Chemical composition and chemical corrosion properties . 7 8.4 Mechanical properties . 8 8.5 Surface condition . 8 8.6 Internal soundness . 8 8.7 Physical properties . 8 8.8 Weldability . 8 9 Inspection . 9 9.1 Types of inspection and inspection documents . 9 9.2 Tests to be carried out . 9 9.3 Re-tests, sorting and reprocessing . 9 10 Sampling . 9 10.1 Frequency of testing. 9 10.2 Selection and preparation of samples and test pieces . 9 11 Test methods . 9 12 Marking . 9 Annex A (informative)
Guidelines for further treatment (including heat treatment in fabrication) . 34 Annex B (informative)
Post weld heat treatment . 39 Annex C (informative)
Preliminary reference data for the tensile strength of austenitic-ferritic steels at elevated temperatures . 41 Annex D (informative)
Reference data of strength values for 1 % (plastic) creep strain and creep rupture . 42 Annex E (informative)
Reference data on mechanical properties of austenitic steels at room temperature and at
low temperatures . 51 SIST EN 10028-7:2016



EN 10028-7:2016 (E) 3 Annex F (informative)
Significant changes to the version EN 10028-7:2007 . 52 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of Directive 2014/68/EU . 53 Bibliography . 54
SIST EN 10028-7:2016



EN 10028-7:2016 (E) 4 European foreword This document (EN 10028-7:2016) has been prepared by Technical Committee ECISS/TC 107 “Steels for pressure purposes”, 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 January 2017, and conflicting national standards shall be withdrawn at the latest by January 2017. This document supersedes EN 10028-7:2007. 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(s). For relationship with EU Directive, 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, Croatia, Cyprus, Czech 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 10028-7:2016



EN 10028-7:2016 (E) 5 Introduction The European Committee for Standardization (CEN) draws attention to the fact that it is claimed that compliance with this document may involve the use of patents concerning eight steel grades given in Clause 12, Annex A, Annex B, Annex C and Annex E. CEN takes no position concerning the evidence, validity and scope of this patent right. The holder of this patent right has assured CEN that he/she is willing to negotiate licences either free of charge or under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with CEN. Information may be obtained from: Outokumpu Oyj FI-02200 Espoo, Finland for steel grades 1.4420, 1.4622, 1.4162 (but also consider footnote c in Table 4) and1.4662 Industeel F-71200 Creusot, 56 Rue Clemenceau, France for steel grade 1.4062 Acciai Speciali Terni S.p.A. I-05100 Terni, Italy for steel grades 1.4646, 1.4611 and 1.4613 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. CEN shall not be held responsible for identifying any or all such patent rights. CEN and CENELEC maintain online lists of patents relevant to their standards. Users are encouraged to consult the lists for the most up to date information concerning patents (ftp://ftp.cencenelec.eu/EN/IPR/Patents/IPRdeclaration.pdf).
SIST EN 10028-7:2016



EN 10028-7:2016 (E) 6 1 Scope This European Standard specifies requirements for flat products for pressure purposes made of stainless steels, including austenitic creep resisting steels, in thicknesses as indicated in Tables 7 to 10. The requirements of EN 10028-1 also apply. NOTE 1 The steel grades covered by this European Standard have been selected from EN 10088–1. NOTE 2 Once this European Standard is published in the Official Journal of the European Union (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 European Standard (Part 1 and Part 7) 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 the Pressure Equipment Directive are satisfied, needs to be done. 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 references, the latest edition of the referenced document (including any amendments) applies. EN 10028-1, Flat products made of steels for pressure purposes — Part 1: General requirements EN 10088-1:2014, Stainless steels — Part 1: List of stainless steels EN ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels — Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid (ISO 3651-2) EN ISO 9444-2, Continuously hot-rolled stainless steel — Tolerances on dimensions and form — Part 2: Wide strip and sheet/plate (ISO 9444-2) EN ISO 9445-2, Continuously cold-rolled stainless steel — Tolerances on dimensions and form — Part 2: Wide strip and plate/sheet (ISO 9445-2) EN ISO 18286, Hot-rolled stainless steel plates — Tolerances on dimensions and shape (ISO 18286) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10028-1 and the following apply. 3.1 cryogenic temperature temperature lower than –75 °C used in the liquefaction of gases 4 Tolerances on dimensions Shall be according to the following standards: — EN ISO 9445-2 for product form C; — EN ISO 9444-2 for product form H; — EN ISO 18286 for product form P. SIST EN 10028-7:2016



EN 10028-7:2016 (E) 7 5 Calculation of mass For density values, shall be according to EN 10088-1:2014, Annex E. 6 Classification and designation Shall be according to EN 10028-1. 7 Information to be supplied by the purchaser 7.1 Mandatory information Shall be according to EN 10028-1. 7.2 Options The relevant options of EN 10028-1 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 EN 10028-1). 7.3 Example for ordering 10 plates made of a steel grade with the name X5CrNi18-10 and the number 1.4301 as specified in EN 10028-7 with nominal dimensions, thickness = 8 mm, width = 2 000 mm, length = 5 000 mm; tolerances on dimensions, shape and mass as specified in EN ISO 18286 with thickness tolerance class B and “normal” flatness tolerance according to process route 1D (see Table 6), inspection document 3.1 as specified in EN 10204: 10 plates– EN ISO 18286:—, 8x2000x5000 B–steel EN 10028-7–X5CrNi18-10+1D–inspection document 3.1 or 10 plates– EN ISO 18286:—, 8x2000x5000 B–steel EN 10028-7–1+1D–inspection document 3.1 8 Requirements 8.1 Steelmaking process Shall be according to EN 10028-1. 8.2 Delivery condition The products shall be supplied in the delivery condition specified in the order by reference to the process route given in Table 6 and, where alternatives exist, to the treatment conditions given in Tables 7 to 10. Guidelines for further treatment including heat treatment are given in Annex A. 8.3 Chemical composition and chemical corrosion properties 8.3.1 The chemical composition requirements given in Tables 1 to 4 shall apply in respect of the chemical composition according to the cast analysis. 8.3.2 The product analysis may deviate from the limiting values for the cast analysis given in Tables 1 to 4 by the values listed in Table 5. SIST EN 10028-7:2016



EN 10028-7:2016 (E) 8 8.3.3 The specifications in Tables 7, 9 and 10 shall apply in respect to resistance to intergranular corrosion as defined in EN ISO 3651-2, for ferritic, austenitic and austenitic-ferritic steels. NOTE 1 EN ISO 3651-2 is not applicable for testing martensitic steels. NOTE 2 The corrosion resistance of stainless steels is very dependent on the type of environment and can therefore not always be clearly ascertained through laboratory tests. It is therefore advisable to draw on the available experience of the use of the steels. 8.4 Mechanical properties 8.4.1 The tensile properties at room temperature and the impact energy at 20 °C and at low temperatures as specified in Tables 7 to 10 apply for the relevant specified heat treatment condition. NOTE Austenitic stainless steels are insensitive to brittle fracture in the solution annealed condition. As they have a good resistance to shock loads, due to their high impact energy, also at very low (cryogenic) temperatures, they are useful for applications at such temperatures (see also the NOTE to Tables 9 and 10). 8.4.2 The values in Tables 11 to 14 apply for the 0,2 % and 1,0 % proof strength at elevated temperatures. Additionally, the values in Table 15 apply for the tensile strength at elevated temperatures for austenitic steels. 8.4.3 Tensile strength values at elevated temperatures for austenitic-ferritic steels are given for guidance in Annex C. 8.4.4 Annex D gives mean values as preliminary data for the purchaser about strength for 1 % (plastic) creep strain and creep rupture. These data apply for the solution annealed condition only (see Table A.3). 8.4.5 In Annex E preliminary data on mechanical properties at low temperatures of austenitic steels are listed. 8.5 Surface condition Shall be according to EN 10028-1 and Table 6. 8.6 Internal soundness Shall be according to EN 10028-1. 8.7 Physical properties For reference data on physical properties, see EN 10088-1:2014, Annex E. 8.8 Weldability 8.8.1 General The choice of the appropriate welding method and welding parameters is under the responsibility of the equipment manufacturer. 8.8.2 Post weld heat treatment Guidelines for the purchaser on post weld heat treatment are given in Annex B. SIST EN 10028-7:2016



EN 10028-7:2016 (E) 9 9 Inspection 9.1 Types of inspection and inspection documents Shall be according to EN 10028-1. 9.2 Tests to be carried out Shall be according to Table 16 and EN 10028-1. 9.3 Re-tests, sorting and reprocessing Shall be according to EN 10028-1. 10 Sampling 10.1 Frequency of testing Shall be according to Table 16 and EN 10028-1. 10.2 Selection and preparation of samples and test pieces Shall be according to EN 10028-1. 11 Test methods Shall be according to EN 10028-1. 12 Marking Shall be according to EN 10028-1. SIST EN 10028-7:2016



EN 10028-7:2016 (E) 10 Table 1 — Chemical composition (cast analysis)a of ferritic steels Steel grade % by mass Steel name Steel
number C max. Si max. Mn max. P max. S max. N max. Cr Mo Nb Ni Ti X2CrNi12 1.4003 0,030 1,00 1,50 0,040 0,015 0,030 10,5 to 12,5 – – 0,30 to 1,00 – X2CrTiNb18 1.4509 0,030 1,00 1,00 0,040 0,015 – 17,5 to 18,5 – [(3xC)+ 0,30] to 1,00 – 0,10 to 0,60 X3CrTi17 1.4510 0,050 1,00 1,00 0,040 0,015 – 16,0 to 18,0 – – – [(4 x(C+N) + 0,15) to 0,80]b X2CrMoTi17–1 1.4513 0,025 1,00 1,00 0,040 0,015 0,020 16,0 to 18,0 0,80 to 1,40 – – [(4 x(C+N) + 0,15) to 0,60]b X6CrNiTi12 1.4516 0,080 0,70 1,50 0,040 0,015 – 10,5 to 12,5 – – 0,50 to 1,50 0,05 to 0,35 X2CrTi17 1.4520 0,025 0,50 0,50 0,040 0,015 0,015 16,0 to 18,0 – – – [(4 x(C+N) + 0,15) to 0,60]b X2CrMoTi18–2 1.4521 0,025 1,00 1,00 0,040 0,015 0,030 17,0 to 20,0 1,80 to 2,50 – – [(4 x(C+N) + 0,15) to 0,80]b X6CrMoNb17–1 1.4526 0,080 1,00 1,00 0,040 0,015 0,040 16,0 to 18,0 0,80 to 1,40 [7x(C+N) + 0,10] to 1,00 – – X2CrTi21c,d 1.4611 0,030 1,00 1,00 0,050 0,05 - 19,0 to 22,0
¶ 0,50
¶ 1,00b
¶ 0,50
¶ 1,00b X2CrTi24c,d 1.4613 0,030 1,00 1,00 0,050 0,05 - 22,0 to 25,0
¶ 0,50
¶ 1,00b
¶ 0,50
¶ 1,00b X2CrCuNbTiV22–1 d,e 1.4622 0,030 1,00 0,80 0,040 0,015 0,030 20,0 to 24,0 – 0,10 to 0,70 – 0,10 to 0,70 a Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing of the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel. b The stabilization may be made by use of titanium and/or niobium and/or zirconium. According to the atomic mass of these elements and the content of carbon and nitrogen, the equivalence shall be the following, in % by mass: 74NbZrTi≈≈ c Other elements: Cu < 0,5 % and Al < 0,05 %. d Patented steel. e Other elements: V: 0,03 to 0,50 %; Cu: 0,30 to 0,80 %; Ti + Nb: 8x(C+N) to 0,80 %. SIST EN 10028-7:2016



EN 10028-7:2016 (E) 11 Table 2 — Chemical composition (cast analysis)a of martensitic steels Steel grade % by mass
Steel name Steel number C max. Si max. Mn max. P max. S max. Cr Mo Ni N min. X3CrNiMo13–4 1.4313 0,05 0,70 1,50 0,040 0,015 12,0 to 14,0 0,30 to 0,70 3,5 to 4,5 0,020 X4CrNiMo16–5-1 1.4418 0,06 0,70 1,50 0,040 0,015 15,0 to 17,0 0,80 to 1,50 4,0 to 6,0 0,020 a Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel. SIST EN 10028-7:2016



EN 10028-7:2016 (E) 12 Table 3 — Chemical composition (cast analysis)a of austenitic steels Steel grade % by mass Steel name Steel number C Si Mn P max. S max. N Cr Cu Mo Nb Ni Ti Others Austenitic corrosion resisting grades X5CrNi18–10 1.4301
¶ 0,07
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 17,5 to 19,5 – – – 8,0 to 10,5 – – X2CrNi19–11 1.4306
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 18,0 to 20,0 – – – 10,0 to 12,0 – – X2CrNi18–9 1.4307
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 17,5 to 19,5 – – – 8,0 to 10,5 – – X2CrNiN18–10 1.4311
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015 0,12 to 0,22 17,5 to 19,5 – – – 8,5 to 11,5 – – X5CrNiN19–9 1.4315
¶ 0,06
¶ 1,00
¶ 2,00 0,045 0,015 0,12 to 0,22 18,0 to 20,0 – – – 8,0 to 11,0 – – X2CrNiN18–7 1.4318
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015 0,10 to 0,20 16,5 to 18,5 – – – 6,0 to 8,0 – – X1CrNi25–21 1.4335
¶ 0,02
¶ 0,25
¶ 2,00 0,025 0,010
¶ 0,10 24,0 to 26,0 –
¶ 0,20 – 20,0 to 22,0 – – X1CrNiSi18–15–4 1.4361
¶ 0,015 3,7 to 4,5
¶ 2,00 0,025 0,010
¶ 0,10 16,5 to 18,5 –
¶ 0,20 – 14,0 to 16,0 – – X2CrMnNiN17–7-5 1.4371
¶ 0,03
¶ 1,00 6,0 to 8,0 0,045 0,015 0,15 to 0,20 16,0 to 17,0 – – – 3,5 to 5,5 – – X12CrMnNiN17–7-5 1.4372
¶ 0,15
¶ 1,00 5,5 to 7,5 0,045 0,015 0,05 to 0,25 16,0 to 18,0 – – – 3,5 to 5,5 – – X5CrNiMo17–12–2 1.4401
¶ 0,07
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 13,0 – – X2CrNiMo17–12–2 1.4404
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 13,0 – – X2CrNiMoN17–11–2 1.4406
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 12,5 – – X2CrNiMoN21–9-1b 1.4420
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015 0,14 to 0,25 19,5 to 21,5
¶ 1,00 0,50 to 1,50 – 8,0 to 9,5 – – X2CrNiMoN17–13–3 1.4429
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 2,50 to 3,00 – 11,0 to 14,0 – – X2CrNiMo17–12–3 1.4432
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 16,5 to 18,5 – 2,50 to 3,00 – 10,5 to 13,0 – – X2CrNiMoN18–12–4 1.4434
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015 0,10 to 0,20 16,5 to 19,5 – 3,0 to 4,0 – 10,5 to 14,0 – – X2CrNiMo18–14–3 1.4435
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 17,0 to 19,0 – 2,50 to 3,00 – 12,5 to 15,0 – – X3CrNiMo17–13–3 1.4436
¶ 0,05
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 16,5 to 18,5 – 2,50 to 3,00 – 10,5 to 13,0 – – X2CrNiMo18–15–4 1.4438
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015
¶ 0,10 17,5 to 19,5 – 3,0 to 4,0 – 13,0 to 16,0 – – X2CrNiMoN17–13–5 1.4439
¶ 0,03
¶ 1,00
¶ 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 4,0 to 5,0 – 12,5 to 14,5 – – X1CrNiMoN25–22–2 1.4466
¶ 0,02
¶ 0,70
¶ 2,00 0,025 0,010 0,10 to 0,16 24,0 to 26,0 – 2,00 to 2,50 – 21,0 to 23,0 – – X1NiCrMoCuN25–20–7 1.4529
¶ 0,02
¶ 0,50
¶ 1,00 0,030 0,010 0,15 to 0,25 19,0 to 21,0 0,50 to 1,50 6,0 to 7,0 – 24,0 to 26,0 – – X1CrNiMoCuN25–25–5 1.4537
¶ 0,02
¶ 0,70
¶ 2,00 0,030 0,010 0,17 to 0,25 24,0 to 26,0 1,00 to 2,00 4,7 to 5,7 – 24,0 to 27,0 – – X1NiCrMoCu25–20–5 1.4539
¶ 0,02
¶ 0,70
¶ 2,00 0,030 0,010
¶ 0,15 19,0 to 21,0 1,20 to 2,00 4,0 to 5,0 – 24,0 to 26,0 – – X6CrNiTi18–10 1.4541
¶ 0,08
¶ 1,00
¶ 2,00 0,045 0,015 – 17,0 to 19,0 – – – 9,0 to 12,0 5 x C to 0,70 – X1CrNiMoCuN20–18–7 1.4547
¶ 0,02
¶ 0,70
¶ 1,00 0,030 0,010 0,18 to 0,25 19,5 to 20,5 0,50 to 1,00 6,0 to 7,0 – 17,5 to 18,5 – – X6CrNiNb18–10 1.4550
¶ 0,08
¶ 1,00
¶ 2,00 0,045 0,015 – 17,0 to 19,0 – – 10 x C to 1,00 9,0 to 12,0 – – X1NiCrMoCu31–27–4 1.4563
¶ 0,02
¶ 0,70
¶ 2,00 0,030 0,010
¶ 0,10 26,0 to 28,0 0,70 to 1,50 3,0 to 4,0 – 30,0 to 32,0 – – (to be continued) SIST EN 10028-7:2016



EN 10028-7:2016 (E) 13
Steel grade % by mass Steel name Steel number C Si Mn P max. S max. N Cr Cu Mo Nb Ni Ti Others X6CrNiMoTi17–12–2 1.4571
¶ 0,08
¶ 1,00
¶ 2,00 0,045 0,015 – 16,5 to 18,5 – 2,00 to 2,50 – 10,5 to 13,5 5 x C to 0,70 – X6CrNiMoNb17–12–2 1.4580
¶ 0,08
¶ 1,00
¶ 2,00 0,045 0,015 – 16,5 to 18,5 – 2,00 to 2,50 10 x C to 1,00 10,5 to 13,5 – – X9CrMnNiCu17–8-5–2 1.4618
¶ 0,10
¶ 1,00 5,5 to 9,5 0,070 0,010
¶ 0,15 16,5 to 18,5 1,00 to 2,50 – – 4,5 to 5,5 – – X6CrMnNiCuN18–2-4–2b 1.4646 0,02 to 0,10 1,0 10,5 to 12,5 0,05 0,015 0,2 to 0,3 17 to 19 1,5 to 3,0 < 0,5 – 3,5 to 4,5 – Al < 0,05 Austenitic creep resisting grades X3CrNiMoBN17–13–3 1.4910
¶ 0,04
¶ 0,75
¶ 2,00 0,035 0,015 0,10 to 0,18 16,0 to 18,0
2,00 to 3,00 – 12,0 to 14,0 – B: 0,001 5 to 0,005 0 X6CrNiTiB18–10 1.4941 0,04 to 0,08
¶ 1,00
¶ 2,00 0,035 0,015 – 17,0 to 19,0 – – – 9,0 to 12,0 5 x C to 0,80 B: 0,001 5 to
0,005 0 X6CrNi18–10 1.4948 0,04 to 0,08
¶ 1,00
¶ 2,00 0,035 0,015
¶ 0,10 17,0 to 19,0 – – – 8,0 to 11,0 – – X6CrNi23–13 1.4950 0,04 to 0,08
¶ 0,70
¶ 2,00 0,035 0,015
¶ 0,10 22,0 to 24,0 – – – 12,0 to 15,0 – – X6CrNi25–20 1.4951 0,04 to 0,08
¶ 0,70
¶ 2,00 0,035 0,015
¶ 0,10 24,0 to 26,0 – – – 19,0 to 22,0 – – X5NiCrAlTi31–20 (+RA) 1.4958 (+RA) 0,03 to 0,08
¶ 0,70
¶ 1,50 0,015 0,010
¶ 0,030 19,0 to 22,0
¶ 0,50 –
¶ 0,10 30,0 to 32,5 0,20 to 0,50 Al:0,20 to 0,50 Al+Ti:
¶ 0,70 Co
¶ 0,50 Ni+Co: 30,0 to 32,5 X8NiCrAlTi32–21 1.4959 0,05 to 0,10
¶ 0,70
¶ 1,50 0,015 0,010
¶ 0,030 19,0 to 22,0
¶ 0,50 – – 30,0 to 34,0 0,25 to 0,65 Al: 0,25 to 0,65 Co
¶ 0,50 Ni+Co: 30,0 to 34,0 X8CrNiNb16–13 1.4961 0,04 to 0,10 0,30 to 0,60
¶ 1,50 0,035 0,015 – 15,0 to 17,0 – – 10 x C to 1,20 12,0 to 14,0 – – a Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing of the cast. All appropriate precautions are to be taken to avoid the
addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel. b Patented steel SIST EN 10028-7:2016



EN 10028-7:2016 (E) 14 Table 4 — Chemical composition (cast analysis)a of austenitic-ferritic steels Steel grade % by mass Steel name Steel number C max. Si max. Mn P max. S max. N Cr Cu Mo Ni W X2CrNiN22–2b 1.4062 0,030 1,00
¶ 2,00 0,040 0,010 0,16 to 0,28 21,5 to 24,0 –
¶ 0,45 1,00 to 2,90 – X2CrMnNiN21–5-1b 1.4162 0,040 1,00 4,0 to 6,0 0,035 0,005 0,20 to 0,25 21,0 to 22,0 0,10 to 0,80 0,10 to 0,80 1,35 to 1,90c – X2CrNiN23–4 1.4362 0,030 1,00
¶ 2,00 0,035 0,015 0,05 to 0,20 22,0 to 24,0 0,10 to 0,60 0,10 to 0,60 3,5 to 5,5 – X2CrNiMoN25–7-4 1.4410 0,030 1,00
¶ 2,00 0,035 0,015 0,24 to 0,35 24,0 to 26,0 – 3,0 to 4,5 6,0 to 8,0 – X2CrNiMoN22–5-3 1.4462 0,030 1,00
¶ 2,00 0,035 0,015 0,10 to 0,22 21,0 to 23,0 – 2,50 to 3,5 4,5 to 6,5 – X2CrMnNiMoN21–5-3 1.4482 0,030 1,00 4,0 to 6,0 0,035 0,030 0,05 to 0,20 19,5 to 21,5
¶ 1,00 0,10 to 0,60 1,50 to 3,50 – X2CrNiMoCuWN25–7-4 1.4501 0,030 1,00
¶ 1,00 0,035 0,015 0,20 to 0,30 24,0 to 26,0 0,50 to 1,00 3,0 to 4,0 6,0 to 8,0 0,50 to 1,00 X2CrNiMoCuN25–6-3 1.4507 0,030 0,70
¶ 2,00 0,035 0,015 0,20 to 0,30 24,0 to 26,0 1,00 to 2,50 3,0 to 4,0 6,0 to 8,0 – X2CrNiMnMoCuN24–4-3–2b 1.4662 0,030 0,70 2,50 to 4,0 0,035 0,005 0,20 to 0,30 23,0 to 25,0 0,10 to 0,80 1,00 to 2,00 3,0 to 4,5 – a Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel. b Patented steel c Steel grade 1.4162 is patented steel up to a max. limit of Ni of 1,70 %.
SIST EN 10028-7:2016



EN 10028-7:2016 (E) 15 Table 5 — Permissible product analysis tolerances on the limiting values given in Tables 1 to 4 for the cast analysis Element Specified limits, cast analysis % by mass Permissible tolerancea % by mass Carbon
¶ 0,030 + 0,005 > 0,030
¶ 0,10 ±0,01 Silicon
¶ 1,00 + 0,05 > 1,00
¶ 3,00 ±0,10 > 3,00
¶ 4,50 ±0,15 Manganese
¶ 1,00 + 0,03 > 1,00
¶ 2,00 ±0,04 > 2,00
¶ 12,50 ±0,10 Phosphorus
¶ 0,045 + 0,005 > 0,045
¶ 0,070 + 0,010 Sulfur
¶ 0,015 + 0,003 Nitrogen
¶ 0,35 ±0,01 Aluminium
¶ 0,65 ±0,10 Boron
· 0,0015
¶ 0,0050 ±0,0003 Chromium
· 10,5 < 15,0 ±0,15
· 15,0
¶ 20,0 ±0,20 > 20,0
¶ 28,0 ±0,25 Copper
¶ 1,00 ±0,07 > 1,00
¶ 2,50 ±0,10 Molybd
...

SLOVENSKI STANDARD
oSIST prEN 10028-7:2014
01-januar-2014
3ORãþDWLMHNOHQLL]GHONL]DWODþQHSRVRGHGHO1HUMDYQDMHNOD
Flat products made of steels for pressure purposes - Part 7: Stainless steels
Flacherzeugnisse aus Druckbehälterstählen - Teil 7: Nichtrostende Stähle
Produits plats en aciers pour appareils à pression - Partie 7: Aciers inoxydables
Ta slovenski standard je istoveten z: prEN 10028-7
ICS:
77.140.20 Visokokakovostna jekla Stainless steels
77.140.30 Jekla za uporabo pod tlakom Steels for pressure purposes
77.140.50 3ORãþDWLMHNOHQLL]GHONLLQ Flat steel products and semi-
SROL]GHONL products
oSIST prEN 10028-7:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 10028-7:2014

---------------------- Page: 2 ----------------------
oSIST prEN 10028-7:2014


EUROPEAN STANDARD
DRAFT
prEN 10028-7
NORME EUROPÉENNE

EUROPÄISCHE NORM

October 2013
ICS 77.140.30; 77.140.50 Will supersede EN 10028-7:2007
English Version
Flat products made of steels for pressure purposes - Part 7:
Stainless steels
Produits plats en aciers pour appareils à pression - Partie Flacherzeugnisse aus Druckbehälterstählen - Teil 7:
7: Aciers inoxydables Nichtrostende Stähle
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ECISS/TC 107.

If this draft becomes a European Standard, 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 alteration.

This draft European Standard was established by CEN 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 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, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10028-7:2013: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
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 .5
6 Classification and 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 .5
8.1 Steelmaking process .5
8.2 Delivery condition .5
8.3 Chemical composition and chemical corrosion properties .5
8.4 Mechanical properties .6
8.5 Surface condition.6
8.6 Internal soundness .6
8.7 Physical properties .6
8.8 Weldability .6
8.8.1 General .6
8.8.2 Post weld heat treatment .6
9 Inspection .7
9.1 Types of inspection and inspection documents .7
9.2 Tests to be carried out .7
9.3 Re-tests .7
10 Sampling .7
10.1 Frequency of testing .7
10.2 Selection and preparation of samples and test pieces.7
11 Test methods .7
12 Marking .7
Annex A (informative) Guidelines for further treatment (including heat treatment in fabrication). 28
Annex B (informative) Post weld heat treatment . 31
Annex C (informative) Preliminary reference data for the tensile strength of austenitic-ferritic
steels at elevated temperatures . 33
Annex D (informative) Reference data of strength values for 1 % (plastic) creep strain and creep
rupture . 34
Annex E (informative) Reference data on mechanical properties of austenitic steels at room
temperature and at low temperatures. 43
Annex F (informative) Significant changes to the version EN 10028-7:2007 . 44
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 97/23/EC . 45
Bibliography . 46
2

---------------------- Page: 4 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
Foreword
This document (prEN 10028-7:2013) has been prepared by Technical Committee ECISS/TC 107 “Steels for
pressure purposes”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 10028-7:2007.
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.
The European Committee for Standardisation (CEN) draws attention to the fact that it is claimed that
compliance with this document may involve the use of patents concerning two steel grades.
The holder of these patent rights has assured the CEN that he/she is willing to negotiate licences under
reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect,
the statement of the holder of this patent right is registered with CEN [and/or] CENELEC. Information may be
obtained from:
Outokumpu Stainless AB
SE-77480 AVESTA, Sweden
for steel grades 1.4162 and 1.4662


Industeel
F-71200 Creusot,
56 Rue Clemenceau, France
for steel grade 1.4062


ThyssenKrupp Acciai Speciali
Terni I-05100 Terni, Italy
for steel grades 1.4646, 1.4611 and 1.4613
3

---------------------- Page: 5 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
1 Scope
This European Standard specifies requirements for flat products for pressure purposes made of stainless
steels, including austenitic creep resisting steels, in thicknesses as indicated in Tables 7 to 10.
The requirements of EN 10028-1:2007+A1:2009 also apply.
NOTE 1 The steel grades covered by this European Standard have been selected from EN 10088-1.
NOTE 2 Once this European Standard is published in the Official Journal of the European Union (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 Part 7) 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 the Pressure
Equipment Directive are satisfied, needs to be done.
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 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 10088-1:2005, Stainless steels — Part 1: List of stainless steels
EN ISO 3651-2, Determination of the resistance to intergranular corrosion of stainless steels — Part 2:
Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric
acid (ISO 3651-2)
EN ISO 9444-2, Continuously hot-rolled stainless steel - Tolerances on dimensions and form - Part 2: Wide
strip and sheet/plate (ISO 9444-2)
EN ISO 9445-2, Continuously cold-rolled stainless steel - Tolerances on dimensions and form - Part 2: Wide
strip and plate/sheet (ISO 9445-2)
EN ISO 18286, Hot-rolled stainless steel plates - Tolerances on dimensions and shape (ISO 18286)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 10028-1:2007+A1:2009 and the
following apply.
3.1
cryogenic temperature
temperature lower than –75 °C used in the liquefaction of gases
4 Dimensions and tolerances on dimensions
Shall be according to the according standards:
 EN ISO 9445-2 for product form C;
 EN ISO 9444-2 for product form H;
 EN ISO 18286 for product form P.
4

---------------------- Page: 6 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
5 Calculation of mass
For density values, shall be according to EN 10088-1:2005, Annex A.
6 Classification and designation
Shall be according to EN 10028-1:2007+A1:2009.
7 Information to be supplied by the purchaser
7.1 Mandatory information
Shall be according to 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
EN 10028-1:2007+A1:2009).
a) mechanical properties for increased product thicknesses (see Table 7, footnote e);
b) higher R and R values for continuously hot rolled products (see Table 9, footnote d and Table 10,
p0,2 p1,0
footnote b).
7.3 Example for ordering
10 plates made of a steel grade with the name X5CrNi18-10 and the number 1.4301 as specified in
EN 10028-7 with nominal dimensions, thickness = 8 mm, width = 2 000 mm, length = 5 000 mm; tolerances
on dimensions, shape and mass as specified in EN ISO 18286 with thickness tolerance class A and "normal"
flatness tolerance according to process route 1D (see Table 6), inspection document 3.1 as specified in
EN 10204:
10 plates– EN ISO 18286 –8x2000x5000 B–steel EN 10028-7–X5CrNi18-10+1D–inspection document 3.1
or
10 plates– EN ISO 18286 –8x2000x5000 B–steel EN 10028-7–1.4301+1D–inspection document 3.1
8 Requirements
8.1 Steelmaking process
Shall be according to EN 10028-1:2007+A1:2009.
8.2 Delivery condition
The products shall be supplied in the delivery condition specified in the order by reference to the process
route given in Table 6 and, where alternatives exist, to the treatment conditions given in Tables 7 to 10.
Guidelines for further treatment including heat treatment are given in Annex A.
8.3 Chemical composition and chemical corrosion properties
8.3.1 The chemical composition requirements given in Tables 1 to 4 shall apply in respect of the chemical
composition according to the cast analysis.
5

---------------------- Page: 7 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
8.3.2 The product analysis may deviate from the limiting values for the cast analysis given in Tables 1 to 4
by the values listed in Table 5.
8.3.3 The specifications in Tables 7, 9 and 10 shall apply in respect to resistance to intergranular corrosion
as defined in EN ISO 3651-2, for ferritic, austenitic and austenitic-ferritic steels.
NOTE 1 EN ISO 3651-2 is not applicable for testing martensitic steels.
NOTE 2 The corrosion resistance of stainless steels is very dependent on the type of environment and can therefore
not always be clearly ascertained through laboratory tests. It is therefore advisable to draw on the available experience of
the use of the steels.
8.4 Mechanical properties
8.4.1 The tensile properties at room temperature and the impact energy at room and at low temperatures as
specified in Tables 7 to 10 apply for the relevant specified heat treatment condition.
NOTE Austenitic stainless steels are insensitive to brittle fracture in the solution annealed condition. As they have a
good resistance to shock loads, due to their high impact energy, also at very low (cryogenic) temperatures, they are useful
for applications at such temperatures (see also the NOTE to Tables 9 and 10).
8.4.2 The values in Tables 11 to 14 apply for the 0,2 % and 1,0 % proof strength at elevated temperatures.
Additionally, the values in Table 15 apply for the tensile strength at elevated temperatures.
Tensile strength values at elevated temperatures for austenitic-ferritic steels are given for guidance in
Annex C.
8.4.3 Annex D gives mean values as preliminary data for the purchaser about strength for 1 % (plastic)
creep strain and creep rupture. These data apply for the solution annealed condition only (see Table A.3).
8.4.4 In Annex E preliminary data on mechanical properties at low temperatures of austenitic steels are
listed.
8.5 Surface condition
Shall be according to EN 10028-1:2007+A1:2009 and Table 6.
8.6 Internal soundness
Shall be according to EN 10028-1:2007+A1:2009.
8.7 Physical properties
For reference data on physical properties, see Annex A of EN 10088-1:2005.
8.8 Weldability
8.8.1 General
The choice of the appropriate welding method is under the responsibility of the equipment manufacturer.
8.8.2 Post weld heat treatment
Guidelines for the purchaser on post weld heat treatment are given in Annex B.
6

---------------------- Page: 8 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
9 Inspection
9.1 Types of inspection and inspection documents
Shall be according to EN 10028-1:2007+A1:2009.
9.2 Tests to be carried out
Shall be according to Table 16 and EN 10028-1:2007+A1:2009.
9.3 Re-tests
Shall be according to EN 10028-1:2007+A1:2009.
10 Sampling
10.1 Frequency of testing
Shall be according to Table 16 and EN 10028-1:2007+A1:2009.
10.2 Selection and preparation of samples and test pieces
Shall be according to EN 10028-1:2007+A1:2009.
11 Test methods
Shall be according to EN 10028-1:2007+A1:2009.
12 Marking
Shall be according to EN 10028-1:2007+A1:2009.


7

---------------------- Page: 9 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
a
Table 1 — Chemical composition (cast analysis) of ferritic steels
Steel grade % by mass
Steel C Si Mn P S N
Steel name Cr Mo Nb Ni Ti
number max. max. max. max. max. max.
X2CrNi12 1.4003 0,030 1,00 1,50 0,040 0,015 0,030 10,5 to 12,5 – – 0,30 to 1,00 –
X2CrTiNb18 1.4509 0,030 1,00 1,00 0,040 0,015 – 17,5 to 18,5 – [(3xC )+ 0,30] to 1,00 – 0,10 to 0,60
b
X3CrTi17 1.4510 0,05 1,00 1,00 0,040 0,015 – 16,0 to 18,0 – – –
[(4 x(C+N) + 0,15) to 0,80]
b
X2CrMoTi17-1 1.4513 0,025 1,00 1,00 0,040 0,015 0,020 16,0 to 18,0 0,80 to 1,40 – –
[(4 x(C+N) + 0,15) to 0,60]
X6CrNiTi12 1.4516 0,08 0,70 1,50 0,040 0,015 – 10,5 to 12,5 – – 0,50 to 1,50 0,05 to 0,35
b
X2CrTi17 1.4520 0,025 0,50 0,50 0,040 0,015 0,015 16,0 to 18,0 – – –
[(4 x(C+N) + 0,15) to 0,60]
b
X2CrMoTi18-2 1.4521 0,025 1,00 1,00 0,040 0,015 0,030 17,0 to 20,0 1,80 to 2,50 – –
[(4 x(C+N) + 0,15) to o,80]
X6CrMoNb17-1 1.4526 0,08 1,00 1,00 0,040 0,015 0,040 16,0 to 18,0 0,80 to 1,40 [7x(C+N) + 0,10] to 1,00 – –
c,d
1.4611 0,03 1,0 1,0 0,05 0,05 - 19 to 22 < 0,5 < 1,0b < 0,5 < 1,0b
X2CrTi21
c,d
X2CrTi24 1.4613 0,03 1,0 1,0 0,05 0,05 - 22 to 25 < 0,5 < 1,0b < 0,5 < 1,0b
a
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing of the cast. All appropriate precautions are to be taken

    to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.

b
The stabilisation may be made by use of titanium and/or niobium and/or zirconium. According to the atomic mass of these elements and the content of carbon and nitrogen, the equivalence
    shall be the following, in % by mass:
7

Nb≈ Zr≈ Ti
4
c
Other elements: Cu < 0,5% and Al < 0,05%
d
Patented steel
a
Table 2 — Chemical composition (cast analysis) of martensitic steels
Steel grade % by mass
Steel C Si Mn P S N
Steel name Cr Mo Ni
number max. max. max. max. max. min.
X3CrNiMo13-4 1.4313 0,05 0,70 1,50 0,040 0,015 12,0 to 14,0 0,30 to 0,70 3,5 to 4,5 0,020
X4CrNiMo16-5-1 1.4418 0,06 0,70 1,50 0,040 0,015 15,0 to 17,0 0,80 to 1,50 4,0 to 6,0 0,020
a
Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate
precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the
suitability of the steel.
8

---------------------- Page: 10 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
a
Table 3 — Chemical composition (cast analysis) of austenitic steels (1 of 2)
Steel grade % by mass
Steel P S
Steel name C Si Mn N Cr Cu Mo Nb Ni Ti Others
number max. max.
Austenitic corrosion resisting grades
X5CrNi18-10 1.4301 ≤ 0,07 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 17,5 to 19,5 – – – 8,0 to 10,5 – –
X2CrNi19-11 1.4306 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 18,0 to 20,0 – – – 10,0 to 12,0 – –
X2CrNi18-9 1.4307 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 17,5 to 19,5 – – – 8,0 to 10,5 – –
X2CrNiN18-10 1.4311 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 0,12 to 0,22 17,5 to 19,5 – – – 8,5 to 11,5 – –
X5CrNiN19-9 1.4315 ≤ 0,06 ≤ 1,00 ≤ 2,00 0,045 0,015 0,12 to 0,22 18,0 to 20,0 – – – 8,0 to 11,0 – –
X2CrNiN18-7 1.4318 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 0,10 to 0,20 16,5 to 18,5 – – – 6,0 to 8,0 – –
X1CrNi25-21 1.4335 ≤ 0,02 ≤ 0,25 ≤ 2,00 0,025 0,010 ≤ 0,10 24,0 to 26,0 – ≤ 0,20 – 20,0 to 22,0 – –
X2CrMnNiN17-7-5 1.4371 ≤ 0,03 ≤ 1,00 6,0 to 8,0 0,045 0,015 0,15 to 0,20 16,0 to 17,0 – – – 3,5 to 5,5 – –
X12CrMnNiN17-7-5 1.4372 ≤ 0,15 ≤ 1,00 5,5 to 7,5 0,045 0,015 0,05 to 0,25 16,0 to 18,0 – – – 3,5 to 5,5 – –
X5CrNiMo17-12-2 1.4401 ≤ 0,07 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 13,0 – –
X2CrNiMo17-12-2 1.4404 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 13,0 – –
X2CrNiMoN17-11-2 1.4406 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 2,00 to 2,50 – 10,0 to 12,5 – –
X2CrNiMoN17-13-3 1.4429 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 2,50 to 3,00 – 11,0 to 14,0 – –
X2CrNiMo17-12-3 1.4432 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 16,5 to 18,5 – 2,50 to 3,00 – 10,5 to 13,0 – –
X2CrNiMoN18-12-4 1.4434 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 0,10 to 0,20 16,5 to 19,5 – 3,0 to 4,0 – 10,5 to 14,0 – –
X2CrNiMo18-14-3 1.4435 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 17,0 to 19,0 – 2,50 to 3,00 – 12,5 to 15,0 – –
X3CrNiMo17-13-3 1.4436 ≤ 0,05 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 16,5 to 18,5 – 2,50 to 3,00 – 10,5 to 13,0 – –
X2CrNiMo18-15-4 1.4438 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 ≤ 0,10 17,5 to 19,5 – 3,0 to 4,0 – 13,0 to 16,0 – –
X2CrNiMoN17-13-5 1.4439 ≤ 0,03 ≤ 1,00 ≤ 2,00 0,045 0,015 0,12 to 0,22 16,5 to 18,5 – 4,0 to 5,0 – 12,5 to 14,5 – –
X1CrNiMoN25-22-2 1.4466 ≤ 0,02 ≤ 0,70 ≤ 2,00 0,025 0,010 0,10 to 0,16 24,0 to 26,0 – 2,00 to 2,50 – 21,0 to 23,0 – –
X1NiCrMoCuN25-
1.4529 ≤ 0,02 ≤ 0,50 ≤ 1,00 0,030 0,010 0,15 to 0,25 19,0 to 21,0 0,50 to 1,50 6,0 to 7,0 – 24,0 to 26,0 – –
20-7
X1CrNiMoCuN25-
1.4537 ≤ 0,02 ≤ 0,70 ≤ 2,00 0,030 0,010 0,17 to 0,25 24,0 to 26,0 1,00 to 2,00 4,7 to 5,7 – 24,0 to 27,0 – –
25-5
X1NiCrMoCu25-20-
1.4539 ≤ 0,02 ≤ 0,70 ≤ 2,00 0,030 0,010 ≤ 0,15 19,0 to 21,0 1,20 to 2,00 4,0 to 5,0 – 24,0 to 26,0 – –
5
5 x C to
X6CrNiTi18-10 1.4541 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 0,015 – 17,0 to 19,0 – – – 9,0 to 12,0 –
0,70
X1CrNiMoCuN20-
1.4547 ≤ 0,02 ≤ 0,70 ≤ 1,00 0,030 0,010 0,18 to 0,25 19,5 to 20,5 0,50 to 1,00 6,0 to 7,0 – 17,5 to 18,5 – –
18-7
10 x C to
X6CrNiNb18-10 1.4550 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 0,015 – 17,0 to 19,0 – – 9,0 to 12,0 – –
1,00
X1NiCrMoCu31-27-
1.4563 ≤ 0,02 ≤ 0,70 ≤ 2,00 0,030 0,010 ≤ 0,10 26,0 to 28,0 0,70 to 1,50 3,0 to 4,0 – 30,0 to 32,0 – –
4
(to be continued)

9

---------------------- Page: 11 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
Table 3 (2 of 2)
Steel grade % by mass
Steel P S
Steel name C Si Mn N Cr Cu Mo Nb Ni Ti Others
number max. max.
2,00 to 5 x C to
X6CrNiMoTi17-12-2 1.4571 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 0,015 – 16,5 to 18,5 – – 10,5 to 13,5 –
2,50 0,70
X6CrNiMoNb17- 2,00 to
1.4580 ≤ 0,08 ≤ 1,00 ≤ 2,00 0,045 0,015 – 16,5 to 18,5 – 10 x C to 1,00 10,5 to 13,5 – –
12-2 2,50
X9CrMnNiCu17-8-5-2 1.4618 ≤ 0,10 ≤ 1,00 5,5 to 9,5 0,070 0,010 ≤ 0,15 16,5 to 18,5 1,00 to 2,50 – – 4,5 to 5,5 – –
X6CrMnNiCuN18-2-4- 1.4646 0,02 to 0,10 1,0 10,5 to 0,05 0,015 0,2 to 0,3 17 to 19 1,5 to 3,0 < 0,5 – 3,5 to 4,5 –
Al< 0,05
b
12,5
2
Austenitic creep resisting grades
2,00 to B: 0,001 5 to
X3CrNiMoBN17-13-3 1.4910 ≤ 0,04 ≤ 0,75 ≤ 2,00 0,035 0,015 0,10 to 0,18 16,0 to 18,0 – 12,0 to 14,0 –
3,00 0,005 0
5 x C to B: 0,001 5 to
X6CrNiTiB18-10 1.4941 0,04 to 0,08 ≤ 1,00 ≤ 2,00 0,035 0,015 – 17,0 to 19,0 – – – 9,0 to 12,0
0,80 0,005 0
X6CrNi18-10 1.4948 0,04 to 0,08 ≤ 1,00 ≤ 2,00 0,035 0,015 ≤ 0,10 17,0 to 19,0 – – – 8,0 to 11,0 – –
X6CrNi23-13 1.4950 0,04 to 0,08 ≤ 0,70 ≤ 2,00 0,035 0,015 ≤ 0,10 22,0 to 24,0 – – – 12,0 to 15,0 – –
X6CrNi25-20 1.4951 0,04 to 0,08 ≤ 0,70 ≤ 2,00 0,035 0,015 ≤ 0,10 24,0 to 26,0 – – – 19,0 to 22,0 – –
Al:0,20 to
0,50
X5NiCrAlTi31-20 1.4958 0,20 to Al+Ti: ≤ 0,70
0,03 to 0,08 ≤ 0,70 ≤ 1,50 0,015 0,010 ≤ 0,030 19,0 to 22,0 ≤ 0,50 – ≤ 0,10 30,0 to 32,5
(+RA) (+RA) 0,50 ≤ 0,50 Co
Ni+Co: 30,0
to 32,5
Al: 0,25 to
0,65
0,25 to
X8NiCrAlTi32-21 1.4959 0,05 to 0,10 ≤ 0,70 ≤ 1,50 0,015 0,010 ≤ 0,030 19,0 to 22,0 ≤ 0,50 – – 30,0 to 34,0 Co ≤ 0,50
0,65
Ni+Co: 30,0
to 34,0
0,30 to
X8CrNiNb16-13 1.4961 0,04 to 0,10 ≤ 1,50 0,035 0,015 – 15,0 to 17,0 – – 10 x C to 1,20 12,0 to 14,0 – –
0,60
a
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing of the cast. All appropriate precautions are to be taken to avoid the
addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
Patented steel


10

---------------------- Page: 12 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
a
Table 4 — Chemical composition (cast analysis) of austenitic-ferritic steels
Steel grade % by mass
Steel C Si Mn P S
Steel name N Cr Cu Mo Ni W
number max. max. max. max. max.
b
X2CrNiN22-2 1.4062 0,030 1,00 2,00 0,040 0,010 0,16 to 0,28 21,5 to 24,0 – ≤ 0,45 1,00 to 2,90 –
b
1.4162 0,040 1,00 4,0 to 6,0 0,035 0,005 0,20 to 0,25 21,0 to 22,0 0,10 to 0,80 0,10 to 0,80 1,35 to 1,70 –
X2CrMnNiN21-5-1
X2CrNiN23-4 1.4362 0,030 1,00 2,00 0,035 0,015 0,05 to 0,20 22,0 to 24,0 0,10 to 0,60 0,10 to 0,60 3,5 to 5,5 –
X2CrNiMoN25-7-4 1.4410 0,030 1,00 2,00 0,035 0,015 0,24 to 0,35 24,0 to 26,0 – 3,0 to 4,5 6,0 to 8,0 –
X2CrNiMoN22-5-3 1.4462 0,030 1,00 2,00 0,035 0,015 0,10 to 0,22 21,0 to 23,0 – 2,50 to 3,5 4,5 to 6,5 –
X2CrMnNiMoN21-5-3 1.4482 0,030 1,00 4,0 to 6,0 0,035 0,030 0,05 to 0,20 19,5 to 21,5 ≤ 1,00 0,10 to 0,60 1,50 to 3,50 –
X2CrNiMoCuWN25-7-4 1.4501 0,030 1,00 1,00 0,035 0,015 0,20 to 0,30 24,0 to 26,0 0,50 to 1,00 3,0 to 4,0 6,0 to 8,0 0,50 to 1,00
X2CrNiMoCuN25-6-3 1.4507 0,030 0,70 2,00 0,035 0,015 0,20 to 0,30 24,0 to 26,0 1,00 to 2,50 3,0 to 4,0 6,0 to 8,0 –
2,50 to
b
1.4662 0,030 0,70 0,035 0,005 0,20 to 0,30 23,0 to 25,0 0,10 to 0,80 1,00 to 2,00 3,0 to 4,5 –
X2CrNiMnMoCuN24-4-3-2
4,0
a
Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the
addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
Patented steel



11

---------------------- Page: 13 ----------------------
oSIST prEN 10028-7:2014
prEN 10028-7:2013 (E)
Table 5 — Permissible product analysis tolerances on the limiting values given in Tables 1 to 4 for the
cast analysis
Specified limits, cast analysis Permissible
a
tolerance
Element

% by mass % by mass
≤ 0,030 + 0,005
Carbon
> 0,030 ≤ 0,10 ± 0,01
Silicon ≤ 1,00 + 0,05
≤ 1,00 + 0,03
Manganese > 1,00 ≤ 2,00 ± 0,04
> 2,00 ≤ 10,50 ± 0,10
Phosphorus ≤ 0,045 + 0,005
Sulphur ≤ 0,015 + 0,003
Nitrogen ≤ 0,35 ± 0,01
Aluminium ≤ 0,65 ± 0,10
Boron ≥ 0,0015 ≤ 0,0050 ± 0,0003
≥ 10,5 < 15,0 ± 0,15
Chromium ≥ 15,0 ≤ 20,0 ± 0,20
> 20,0 ≤ 28,0 ± 0,25
≤ 1,00 ± 0,07
Copper
> 1,00 ≤ 2,50 ± 0,10
≤ 0,60 ± 0,03
Molybdenum > 0,60 < 1,75 ± 0,05
≥ 1,75 ≤ 7,0 ± 0,10
Niobium ≤ 1,20 ± 0,05
≤ 1,00 ± 0,03
> 1,00 ≤ 5,0 ± 0,07
Nickel > 5,0 ≤ 10,0 ± 0,10
> 10,0 ≤ 20,0 ± 0,15
> 20,0
...