prEN 10217-7

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Geschweißte Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 7: Rohre aus nichtrostenden StählenTubes soudés en acier pour service sous pression - Conditions techniques de livraison - Partie 7 : Tubes en aciers inoxydablesWelded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific use23.020.32Pressure vesselsICS:Ta slovenski standard je istoveten z:prEN 10217-7oSIST prEN 10217-7:2019en,fr,de01-maj-2019oSIST prEN 10217-7:2019SLOVENSKI

yã Stainless steel tubes Tubes soudßs en acier pour service sous pression æ Conditions techniques de livraison æ Partie

Geschweißte Stahlrohre für Druckbeanspruchungen æ Technische Lieferbedingungen æ Teil

yã Rohre aus nichtrostenden Stählen This draft European Standard is submitted to CEN members for enquiryä It has been drawn up by the Technical Committee

If this draft becomes a European Standardá CEN members are bounwhich stipulate the conditions for giving this European Standard the status of a national standard without any alterationä

This draft European Standard was established by CEN in three ofer language made by translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

Recipients of this draft are invited to submitá with their commentsá notification of any relevant patent rights of which they are aware and to provide supporting documentationä

Warning ã This document is not a European Standardä It is distributed for review and commentsä It is subject to change without notice and shall not be referred to as a European Standardä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä prEN

prEN 10217-7:2019 (E) 2 Contents Page European foreword ....................................................................................................................................................... 4 1 Scope .................................................................................................................................................................... 5 2 Normative references .................................................................................................................................... 5 3 Terms and definitions ................................................................................................................................... 7 4 Symbols ............................................................................................................................................................... 7 5 Classification and designation .................................................................................................................... 7 5.1 Classification ..................................................................................................................................................... 7 5.2 Designation........................................................................................................................................................ 7 6 Information to be supplied by the purchaser ....................................................................................... 8 6.1 Mandatory information ................................................................................................................................ 8 6.2 Options ................................................................................................................................................................ 8 6.3 Examples of an order ..................................................................................................................................... 9 6.3.1 Example 1 ........................................................................................................................................................... 9 6.3.2 Example 2 ........................................................................................................................................................... 9 7 Manufacturing process ............................................................................................................................... 10 7.1 Steelmaking process ................................................................................................................................... 10 7.2 Tube manufacture and conditions ......................................................................................................... 10 8 Requirements ................................................................................................................................................ 12 8.1 General ............................................................................................................................................................. 12 8.2 Chemical composition ................................................................................................................................ 13 8.2.1 Cast analysis ................................................................................................................................................... 13 8.2.2 Product analysis ........................................................................................................................................... 13 8.3 Mechanical properties ................................................................................................................................ 16 8.3.1 At room temperature .................................................................................................................................. 16 8.3.2 At elevated temperature ........................................................................................................................... 17 8.3.3 At low temperature ..................................................................................................................................... 17 8.4 Corrosion resistance ................................................................................................................................... 23 8.5 Appearance and internal soundness..................................................................................................... 23 8.5.1 Appearance ..................................................................................................................................................... 23 8.5.2 Internal soundness ...................................................................................................................................... 24 8.6 Straightness .................................................................................................................................................... 24 8.7 Preparation of ends ..................................................................................................................................... 24 8.8 Dimensions, masses and tolerances ...................................................................................................... 25 8.8.1 Outside diameter and wall thickness .................................................................................................... 25 8.8.2 Mass ................................................................................................................................................................... 25 8.8.3 Lengths ............................................................................................................................................................. 25 8.8.4 Tolerances ...................................................................................................................................................... 25 9 Inspection ....................................................................................................................................................... 27 9.1 Type of inspection ........................................................................................................................................ 27 9.2 Inspection documents ................................................................................................................................ 27 9.2.1 Types of inspection documents............................................................................................................... 27 9.2.2 Content of inspection documents ........................................................................................................... 28 9.3 Summary of inspection and verification testing ............................................................................... 28 oSIST prEN 10217-7:2019

prEN 10217-7:2019 (E) 3 10 Sampling .......................................................................................................................................................... 29 10.1 Test unit ........................................................................................................................................................... 29 10.2 Preparation of samples and test pieces ................................................................................................ 30 10.2.1 Selection and preparation of samples for product analysis.......................................................... 30 10.2.2 Location, orientation and preparation of samples and test pieces for mechanical tests .................................................................................................................................................................... 30 11 Verification test methods .......................................................................................................................... 31 11.1 Chemical analysis ......................................................................................................................................... 31 11.2 Tensile test on the base material ............................................................................................................ 32 11.2.1 At room temperature .................................................................................................................................. 32 11.2.2 At elevated temperature ............................................................................................................................ 32 11.3 Transverse tensile test on the weld ....................................................................................................... 32 11.4 Technological tests ....................................................................................................................................... 32 11.4.1 General ............................................................................................................................................................. 32 11.4.2 Flattening test ................................................................................................................................................ 33 11.4.3 Ring tensile test ............................................................................................................................................. 33 11.4.4 Drift expanding test ..................................................................................................................................... 33 11.4.5 Ring expanding test ..................................................................................................................................... 34 11.5 Weld bend test ............................................................................................................................................... 34 11.6 Impact test ....................................................................................................................................................... 34 11.7 Intergranular corrosion test..................................................................................................................... 35 11.8 Leak tightness test ........................................................................................................................................ 35 11.8.1 Hydrostatic test ............................................................................................................................................. 35 11.8.2 Eddy current test .......................................................................................................................................... 35 11.9 Dimensional inspection .............................................................................................................................. 36 11.10 Visual examination ...................................................................................................................................... 36 11.11 Non-destructive testing .............................................................................................................................. 36 11.12 Material identification ................................................................................................................................ 37 11.13 Retests, sorting and reprocessing .......................................................................................................... 37 12 Marking ............................................................................................................................................................ 37 12.1 Marking to be applied ................................................................................................................................. 37 12.2 Additional marking ...................................................................................................................................... 38 13 Handling and packaging ............................................................................................................................. 38 Annex A (informative)

Technical changes from the previous edition ...................................................... 39 A.1 Introduction.................................................................................................................................................... 39 A.2 Technical changes ........................................................................................................................................ 39 Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of Directive 2014/68/EU aimed to be covered..................................................... 41 oSIST prEN 10217-7:2019

prEN 10217-7:2019 (E) 4 European foreword This document (prEN 10217-7:2019) has been prepared by Technical Committee ECISS/TC 110 “Steel tubes and iron and steel fittings”, the secretariat of which is held by UNI. This document is currently submitted to the CEN Enquiry. This document supersedes EN 10217-7:2014. 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 2014/68/EU. For relationship with EU Directive 2014/68/EU (formerly 97/23/EC), see informative Annex ZA, which is an integral part of this document. This European Standard consists of the following parts, under the general title Welded steel tubes for pressure purposes — Technical delivery conditions: — Part 1: Electric welded and submerged arc welded non-alloy steel tubes with specified room temperature properties — Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties — Part 3: Electric welded and submerged arc welded alloy fine grain steel tubes with specified room, elevated and low temperature properties — Part 4: Electric welded non-alloy and alloy steel tubes with specified low temperature properties — Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties — Part 6: Submerged arc welded non-alloy steel tubes with specified low temperature properties — Part 7: Stainless steel tubes Another European Standard series covering tubes for pressure purposes is: EN 10216, Seamless steel tubes for pressure purposes.

prEN 10217-7:2019 (E) 5 1 Scope This Part of EN 10217 specifies the technical delivery conditions in two test categories for welded tubes of circular cross-section made of austenitic and austenitic-ferritic stainless steel which are intended for pressure and corrosion resisting purposes at room temperature, at low temperatures or at elevated temperatures. NOTE Once this document is published in the Official Journal of the European Union (OJEU) under Directive 2014/68/EU, pressure equipment directive, presumption of conformity to the Essential Safety Requirements (ESR) of Directive 2014/68/EU is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in 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 by the designer or manufacturer of the pressure equipment, taking also into account the subsequent manufacturing processes which may affect properties of the base materials. 2

Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 10020:2000, Definition and classification of grades of steel EN 10021:2006, General technical delivery conditions for steel products EN 10027-1, Designation systems for steels — Part 1: Steel names EN 10027-2, Designation systems for steels — Part 2: Numerical system EN 10028-7:2016, Flat products made of steels for pressure purposes — Part 7: Stainless steels EN 10088-1, Stainless steels — Part 1: List of stainless steels EN 10168:2004, Steel products — Inspection documents - List of information and description EN 10204:2004, Metallic products — Types of inspection documents EN 10266, Steel tubes, fittings and structural hollow sections — Symbols and definitions of terms for use in product standards CEN/TR 10261, Iron and steel — European standards for the determination of chemical composition EN ISO 148-1:2016, Metallic materials — Charpy pendulum impact test — Part 1: Test method (ISO 148-1:2016) EN ISO 377:2017, Steel and steel products — Location and preparation of samples and test pieces for mechanical testing (ISO 377:2017) EN ISO 1127, Stainless steel tubes — Dimensions, tolerances and conventional masses per unit length (ISO 1127) EN ISO 2566-2, Steel — Conversion of elongation values — Part 2: Austenitic steels (ISO 2566-2) oSIST prEN 10217-7:2019

prEN 10217-7:2019 (E) 6 EN ISO 3651-2:1998, 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 3651-2:1998) EN ISO 4885, Ferrous materials — Heat treatments — Vocabulary (ISO 4885) EN ISO 5173:2010, Destructive tests on welds in metallic materials — Bend tests (ISO 5173:2009) EN ISO 6892-1:2016, Metallic materials — Tensile testing — Part 1: Method of test at room temperature (ISO 6892-1:2016) EN ISO 6892-2:2018, Metallic materials — Tensile testing — Part 2: Method of test at elevated temperature (ISO 6892-2:2018) EN ISO 8492:2013, Metallic materials — Tube — Flattening test (ISO 8492:2013) EN ISO 8493:2004, Metallic materials — Tube — Drift-expanding test (ISO 8493:1998) EN ISO 8495:2013, Metallic materials — Tube — Ring-expanding test (ISO 8495:2013) EN ISO 8496:2013, Metallic materials — Tube — Ring tensile test (ISO 8496:2013) EN ISO 9712:2012, Non-destructive testing — Qualification and certification of NDT personnel (ISO 9712:2012) EN ISO 10893-1, Non-destructive testing of steel tubes — Part 1: Automated electromagnetic testing of seamless and welded (except submerged arc-welded) steel tubes for the verification of hydraulic leaktightness (ISO 10893-1) EN ISO 10893-2, Non-destructive testing of steel tubes — Part 2: Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of imperfections (ISO 10893-2) EN ISO 10893-6, Non-destructive testing of steel tubes — Part 6: Radiographic testing of the weld seam of welded steel tubes for the detection of imperfections (ISO 10893-6) EN ISO 10893-7, Non-destructive testing of steel tubes — Part 7: Digital radiographic testing of the weld seam of welded steel tubes for the detection of imperfections (ISO 10893-7) EN ISO 10893-8, Non-destructive testing of steel tubes — Part 8: Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections (ISO 10893-8) EN ISO 10893-9, Non-destructive testing of steel tubes — Part 9: Automated ultrasonic testing for the detection of laminar imperfections in strip/plate used for the manufacture of welded steel tubes (ISO 10893-9) EN ISO 10893-10, Non-destructive testing of steel tubes — Part 10: Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-10) EN ISO 10893-11, Non-destructive testing of steel tubes — Part 11: Automated ultrasonic testing of the weld seam of welded steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-11) oSIST prEN 10217-7:2019

prEN 10217-7:2019 (E) 7 EN ISO 14284:2002, Steel and iron — Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) ISO 11484:2009, Steel products — Employer's qualification system for non-destructive testing (NDT) personnel ISO/TR 25901-3:2016, Welding and allied processes — Vocabulary — Part 3: Welding processes 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 10020, EN 10021, EN ISO 4885 and EN 10266 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/

3.1 test category classification that indicates the extent and level of inspection and testing 3.2 employer organization for which a person works on a regular basis Note 1 to entry: The employer may be either the tube manufacturer or supplier or a third party organization providing Non- Destructive Testing (NDT) services. 4 Symbols For the purpose of this document, the symbols given in EN 10266 and the following apply. — TC test category. NOTE See also Table 2 for symbols of the delivery condition. 5 Classification and designation 5.1 Classification According to the classification system in EN 10020, the steel grades are classified as: — austenitic steels (corrosion resisting); — austenitic-ferritic steels. 5.2 Designation For the tubes covered by this Part of EN 10217 the steel designation consists of: — the number of this Part of EN 10217 (EN 10217-7); plus either: — the steel name according to EN 10027-1; oSIST prEN 10217-7:2019

prEN 10217-7:2019 (E) 8 or: — the steel number allocated according to EN 10027-2. 6 Information to be supplied by the purchaser 6.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order: a) the quantity (mass or total length or number); b) the term “tube”; c) the dimensions (outside diameter D and wall thickness T) (see 8.8.1); d) the designation of the steel grade according to this Part of EN 10217 (see 5.2); e) the test category (see 9.3). 6.2 Options A number of options are specified in this Part of EN 10217 and these are listed below. In the event that the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the tube shall be supplied in accordance with the basic specification (see 6.1). 1) Information about steelmaking process (see 7.1); 2) Tube manufacturing process and/or route (see 7.2.1); 3) The inside weld is remelted (see Table 1); 4) The inside weld is worked by rolling, remelting or grinding (see Table 1); 5) Delivery condition (see 7.2.3); 6) Product analysis (see 8.2.2); 7) Additional verifications of mechanical properties on samples that have undergone a different or additional heat treatment (see 8.3.1); 8) Verification of impact energy at room temperature (see 8.3.1); 9) Verification of proof strength Rp0,2 or Rp1,0 at elevated temperatures (see 8.3.2); 10) Verification of impact energy at low temperature (see 8.3.3); 11) Intergranular corrosion test (see 8.4); 12) Repair welding (see 8.5.1.5); 13) Selection of method for verification of leak-tightness test method (see 8.5.2.2); 14) Non-destructive testing of tube ends for detection of laminar imperfections (see 8.5.2.3); 15) Non-destructive testing of strip and plate edges for detection of laminar imperfections (see 8.5.2.3); oSIST prEN 10217-7:2019

prEN 10217-7:2019 (E) 9 16) Special ends preparation (see 8.7); 17) Exact lengths (see 8.8.3); 18) Tolerance class D 4 for D

¶ 168,3 mm (see Table 10); 19) The type of inspection certificate 3.2 in place of the standard document (see 9.2.1); 20) Transverse tensile test on the weld (see 10.2.2.3); 21) Test pressure for hydrostatic leak-tightness test (see 11.8.1); 22) Wall thickness measurement away from the ends (see 11.9); 23) Selection of non- destructive testing method for the inspection of the weld seam (see Table 16); 24) Image quality class B of EN ISO 10893-6 for the radiographic inspection of the weld seam (see Table 16); 25) Additional marking (see 12.2); 26) Special protection (see Clause 13); 27) Image quality class B of EN ISO 10893-7 for the digital radiographic testing of the weld (see Table 16); 28) Different values for the maximum height of the weld seam are to be agreed in the purchase order (see Table 11); 29) Height of the weld seam for tubes with route 01, 05, 06 and 07 (according to Table 1) and with thicknesses over 8 mm: maximum 4 mm (see Table 11). 6.3 Examples of an order 6.3.1 Example 1 2 000 m of welded tube W1 (see Table 2) with an outside diameter of 168,3 mm, a wall thickness of 4,5 mm, tolerance classes D 3 and T 3, in accordance with this Part of EN 10217, made of steel grade X2CrNi19-11, test category 1, with a 3.1 inspection certificate according to EN 10204: EXAMPLE 2 000 m - Tube - 168,3 × 4,5 - EN 10217-7- X2CrNi19–11 - TC 1 - Option 5: W1 6.3.2 Example 2 300 m of cold finished welded tube WCA (see Table 2) with an outside diameter of 42,4 mm, a wall thickness of 2,6 mm, tolerance classes D 3 and T 3, in accordance with this Part of EN 10217, made of steel grade 1.4301, test category 2, with intergranular corrosion test (EN ISO 3651-2, method A), verification of proof strength at 300 °C, non-destructive testing of strip edges for detection of laminar imperfections, with a 3.2 inspection certificate according to EN 10204 issued by the manufacturer: EXAMPLE 300 m - Tube - 42,4 × 2,6 - EN 10217-7 - 1.4301 - TC 2 - Option 5: WCA - Option 9: 300 °C - Option 11: A - Option 15 - Option 19: 3.2 (to be issued by the manufacturer) oSIST prEN 10217-7:2019

prEN 10217-7:2019 (E) 10 7 Manufacturing process 7.1 Steelmaking process The steelmaking process is at the discretion of the manufacturer, but see Option 1. Option 1: The purchaser shall be informed about the steelmaking process used. The process shall be reported in the inspection document. 7.2 Tube manufacture and conditions 7.2.1 The tubes shall be manufactured from hot or cold rolled plate, sheet or strip in accordance with EN 10028-7. They shall be longitudinally welded by fusion across the abutting edges using either an arc welding or a laser welding or an electron beam welding process, or a combination thereof. The definitions of these respective fusion welding methods are given in ISO/TR 25901-3:2016, 4.2. Welding can be performed with or without the addition of filler metal in accordance with one of the routes as specified in Table 1. Unless Option 2 is specified, the manufacturing process and/or route are at the discretion of the manufacturer. Option 2: The tube manufacturing process and/or route is specified by the purchaser. The finished tubes shall