SIST EN 10216-4:2014
(Main)Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Non-alloy and alloy steel tubes with specified low temperature properties
Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Non-alloy and alloy steel tubes with specified low temperature properties
EN 10216-4 specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, with specified low temperature properties, made of non-alloy and alloy steel.
Nahtlose Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 4: Rohre aus unlegierten und legierten Stählen mit festgelegten Eigenschaften bei tiefen Temperaturen
Diese Europäische Norm enthält die technischen Lieferbedingungen für nahtlose Rohre mit kreisförmigem Querschnitt aus unlegiertem und legiertem Stahl mit festgelegten Eigenschaften bei tiefen Temperaturen und legt dafür zwei Prüfkategorien fest.
ANMERKUNG Nach Veröffentlichung dieser Norm im EU Amtsblatt (OJEU) unter der Richtlinie 97/23/EG ist die Annahme ihrer Konformität mit den grundlegenden Anforderungen (ESR) der Richtlinie 97/23/EG auf die technischen Daten von Werkstoffen in dieser Europäischen Norm 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 Ausrüstungs¬teils ermittelt werden, um damit zu verifizieren, dass den ESR der Richtlinie 97/23/EG entsprochen wird. Dies muss durch den Ausleger oder den Hersteller der Druckgeräte geschehen, der auch den nachfolgenden Herstellungsprozess berücksichtigen muss, der die Eigenschaften des Grundmaterials verändern kann.
Tubes sans soudure en acier pour service sous pression - Conditions techniques de livraison - Partie 4 : Tubes en acier non allié et allié avec caractéristiques spécifiées à basse température
Cette Norme Européenne spécifie les conditions techniques de livraison, selon deux catégories
d’essai, pour les
tubes sans soudure à section circulaire en acier non allié et allié, avec caractéristiques
spécifiées à basse température.
NOTE Dès lors que la présente Norme européenne est publiée dans le Journal Officiel de
l’Union européenne (JOUE) en lien avec la Directive 97/23/CE, la présomption de conformité
avec les exigences essentielles de sécurité de la Directive 97/23/CE se limite aux données
techniques des matériaux spécifiées dans la présente Norme européenne et ne suppose pas
l’adéquation des matériaux avec un appareil en particulier. Par conséquent, il doit être procédé à
l’évaluation des données techniques spécifiées dans la présente norme de matériaux par rapport aux
exigences concernant la conception de cet équipement spécifique, afin de vérifier que les exigences
essentielles de sécurité de la Directive 97/23/CE soient satisfaites.
Nevarjene jeklene cevi za tlačne posode - Tehnični dobavni pogoji - 4. del: Nelegirane in legirane jeklene cevi s specificiranimi lastnostmi za delo pri nizkih temperaturah
Standard EN 10216-4 določa tehnične dobavne pogoje v dveh preskusnih kategorijah za nevarjene cevi s krožnim prerezom iz nelegiranega in legiranega jekla ter podanimi lastnostmi za delo pri nizkih temperaturah.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WHPSHUDWXUDKNahtlose Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 4: Rohre aus unlegierten und legierten Stählen mit festgelegten Eigenschaften bei tiefen TemperaturenTubes sans soudure en acier pour service sous pression - Conditions techniques de livraison - Partie 4 : Tubes en acier non allié et allié avec caractéristiques spécifiées à basse températureSeamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Non-alloy and alloy steel tubes with specified low temperature properties77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific use23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 10216-4:2013SIST EN 10216-4:2014en,fr,de01-julij-2014SIST EN 10216-4:2014SLOVENSKI
STANDARDSIST EN 10216-4:2003/A1:2004SIST EN 10216-4:20031DGRPHãþD
SIST EN 10216-4:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10216-4
December 2013 ICS 23.040.10; 77.140.75 Supersedes EN 10216-4:2002English Version
Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Non-alloy and alloy steel tubes with specified low temperature properties
Tubes sans soudure en acier pour service sous pression - Conditions techniques de livraison - Partie 4 : Tubes en acier non allié et allié avec caractéristiques spécifiées à basse température
Nahtlose Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 4: Rohre aus unlegierten und legierten Stählen mit festgelegten Eigenschaften bei tiefen Temperaturen This European Standard was approved by CEN on 17 August 2013.
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 © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10216-4:2013 ESIST EN 10216-4:2014
EN 10216-4:2013 (E) 2 Contents
Page Foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Symbols . 6 5 Classification and designation . 6 5.1 Classification . 6 5.2 Designation . 7 6 Information to be supplied by the purchaser . 7 6.1 Mandatory information . 7 6.2 Options . 7 6.3 Example of an order . 8 7 Manufacturing process . 8 7.1 Steelmaking process . 8 7.2 Tube manufacture and delivery conditions . 8 8 Requirements . 9 8.1 General . 9 8.2 Chemical composition . 10 8.3 Mechanical properties . 12 8.4 Appearance and internal soundness. 14 8.5 Straightness . 14 8.6 Preparation of ends . 14 8.7 Dimensions, masses and tolerances. 15 9 Inspection . 19 9.1 Types of inspection . 19 9.2 Inspection documents. 19 9.3 Summary of inspection and verification testing . 20 10 Sampling . 20 10.1 Frequency of tests . 20 10.2 Preparation of samples and test pieces . 21 11 Verification test methods . 22 11.1 Chemical analysis. 22 11.2 Tensile test . 22 11.3 Flattening test . 22 11.4 Ring tensile test . 23 11.5 Drift expanding test . 23 11.6 Ring expanding test . 24 11.7 Impact test . 24 11.8 Leak tightness test . 24 11.9 Dimensional inspection . 25 11.10 Visual examination . 25 11.11 Non-Destructive Testing . 25 11.12 Material identification . 26 11.13 Retests, sorting and reprocessing . 26 12 Marking . 26 12.1 Marking to be applied . 26 12.2 Additional marking . 26 13 Protection . 27 Annex A (informative)
Technical changes from the previous edition . 28 SIST EN 10216-4:2014
EN 10216-4:2013 (E) 3 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 29 Bibliography . 30
SIST EN 10216-4:2014
EN 10216-4:2013 (E) 4 Foreword This document (EN 10216-4:2013) has been prepared by Technical Committee ECISS/TC 110 “Steel tubes and fittings for steel tubes”, the secretariat of which is held by UNI. 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 June 2014, and conflicting national standards shall be withdrawn at the latest by June 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10216-4:2002. For the list of the most significant technical changes that have been made in this new edition, see Annex A. 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(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 "Seamless steel tubes for pressure purposes – Technical delivery conditions": Part 1 :Non-alloy steel tubes with specified room temperature properties; Part 2 :Non-alloy and alloy steel tubes with specified elevated temperature properties; Part 3 :Alloy fine grain steel tubes; Part 4: Non-alloy and alloy steel tubes with specified low temperature properties (the present document); Part 5 :Stainless steel tubes. Another European Standard series covering tubes for pressure purposes is: EN 10217: Welded steel tubes for pressure purposes —Technical delivery conditions. 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 10216-4:2014
EN 10216-4:2013 (E) 5
1 Scope This European Standard specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, with specified low temperature properties, made of non-alloy and alloy steel. NOTE Once this 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 (ESR) of Directive 97/23/EC 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, 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 10020, Definition and classification of grades of steel EN 10021, 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 10052, Vocabulary of heat treatment terms for ferrous product EN 10168:2004, Steel products - Inspection documents - List of information and description
EN 10204:2004, Metallic products - Types of inspection documents EN 10220, Seamless and welded steel tubes - Dimensions and masses per unit length
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 - Review of available methods of chemical analysis
EN ISO 148-1:2010, Metallic materials - Charpy pendulum impact test - Part 1: Test method (ISO 148-1:2009) EN ISO 377:2013, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2013) EN ISO 2566-1, Steel - Conversion of elongation values – Part 1: Carbon and low-alloy steels (ISO 2566-1) EN ISO 6892-1:2009, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2009) EN ISO 8492:2004, Metallic materials - Tube - Flattening test (ISO 8492:1998) EN ISO 8493:2004, Metallic materials - Tube - Drift expanding test (ISO 8493:1998) SIST EN 10216-4:2014
EN 10216-4:2013 (E) 6 EN ISO 8495:2004, Metallic materials - Tube - Ring expanding test (ISO 8495:1998) EN ISO 8496:2004, Metallic materials - Tube - Ring tensile test (ISO 8496:1998) 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 leak-tightness (ISO 10893-1) EN ISO 10893-3, Non-destructive testing of steel tubes - Part 3: Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-3) 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 10893-10, 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 14284:2002, Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284) ISO 11484:2009, Steel products - Employer's qualification system for non-destructive testing (NDT) personnel 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020, EN 10021, EN 10052, EN 10266 and the following apply. 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 purposes of this document, the symbols given EN 10266 and the following apply. TC test category 5 Classification and designation 5.1 Classification In accordance with the classification system in EN 10020, the steel grades P 215NL, P 255QL and P265NL are classified as non-alloy quality steels and the other steel grades are classified as alloy special steels. SIST EN 10216-4:2014
EN 10216-4:2013 (E) 7 5.2 Designation 5.2.1 For the tubes covered by this document, the steel designation consists of: the number of this Part of EN 10216; plus either the steel name in accordance with EN 10027-1; or the steel number allocated in accordance with EN 10027-2. 5.2.2 The steel name of non-alloy steel grades is designated by: the capital letter P for pressure purposes; the indication of the specified minimum yield strength at room temperature, expressed in MPa (see Table 4); the symbol of the heat treatment for the steel grade concerned (see Table 1); the symbol L for low temperature. 5.2.3 The steel name of alloy-steel grades is designated by the chemical composition (see Table 2) and the symbols for the heat treatment, where specified in column 1 and footnote a) of Table 1. 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 Table 6); d) the designation of the steel grade in accordance with this Part of EN 10216 (see 5.2); e) the test category for non-alloy steel (see 9.3). 6.2 Options A number of options are specified in this Part of EN 10216 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 tubes shall be supplied in accordance with the basic specification (see 6.1). 1) Cold finishing (see 7.2.2); 2) restriction on copper and tin content (see Table 2); 3) product analysis (see 8.2.2); 4) selection of test method for verification of leak-tightness (see 8.4.2.1); SIST EN 10216-4:2014
EN 10216-4:2013 (E) 8 5) Non-Destructive Testing for test category 2 tubes for detection of transverse imperfections (see 8.4.2.2); 6) Non-Destructive Testing for test category 2 tubes for detection of laminar imperfections (see 8.4.2.2); 7) special ends preparation (see 8.6); 8) exact lengths (see 8.7.3); 9) inspection certificate 3.2 other than the standard document (see 9.2.1); 10) test pressure for hydrostatic leak-tightness test (see 11.8.1); 11) wall thickness measurement away from the ends (see 11.9); 12) Non-Destructive Testing method (see 11.11.1); 13) additional marking (see 12.2); 14) protection (see 13). 6.3 Example of an order 50 t of seamless tube with an outside diameter of 168,3 mm, a wall thickness of 4,5 mm in accordance with EN 10216-4, made of steel grade P265NL, test category 1, with a 3.2 inspection certificate in accordance with EN 10204: EXAMPLE 50 t - Tube - 168,3 x 4,5 - EN 10216-4 - P265NL - TC1 - Option 9: 3.2.
7 Manufacturing process 7.1 Steelmaking process The steelmaking process is at the discretion of the manufacturer with the exception that the open hearth (Siemens-Martin) process shall not be employed unless in combination with a secondary steelmaking or ladle refining process. Steels shall be fully killed. NOTE This excludes the use of rimming, balanced or semi-killed steel. 7.2 Tube manufacture and delivery conditions 7.2.1 All NDT activities shall be carried out by qualified and competent level 1, 2 and/or 3 personnel authorized to operate by the employer. The qualification shall be in accordance with ISO 11484 or, at least, an equivalent to it. It is recommended that the level 3 personnel be certified in accordance with EN ISO 9712 or, at least, an equivalent to it. The operating authorization issued by the employer shall be in accordance with a written procedure. NDT operations shall be authorized by level 3 NDT individual approved by the employer. NOTE The definition of level 1, 2 and 3 can be found in appropriate standards, e.g. EN ISO 9712 and ISO 11484. 7.2.2 The tubes shall be manufactured by a seamless process.
SIST EN 10216-4:2014
EN 10216-4:2013 (E) 9 Unless option 1 is specified, the tubes may be either hot or cold finished at the discretion of the manufacturer. The terms “ hot finished “ and “ cold finished “ apply to the condition of the tube before it is heat treated in accordance with 7.2.3. Option 1: The tubes shall be cold finished before heat treatment. 7.2.3 The tubes shall be supplied in the relevant heat treatment conditions as specified in Table 1. Table 1 — Delivery conditions Steel grade Heat treatment a b Normalizing temperature ° C Tempering temperature °C Quenching and tempering Steel name Steel number Hardening temperature ° C Cooling medium c Tempering temperature °C P215NL 1.0451 +N 900 to 940 -- -- -- -- P255QL 1.0452 +QT -- -- 890 to 930 Water or oil 600 to 680 P265NL 1.0453 +N 880 to 940 -- -- -- -- 26CrMo4-2 1.7219 +QT -- -- 830 to 860 Water or oil 600 to 680 11 MnNi5-3 1.6212 +N d 890 to 940 (580 to 640) -- -- -- 13 MnNi6-3 1.6217 +N d 890 to 940 (580 to 640) -- -- -- 12Ni14 1.5637 +NT 830 to 880 580 to 640 -- -- -- +QT -- -- 820 to 880 Water or oil 580 to 660 X12Ni5 1.5680 +NT 800 to 850 580 to 640 -- -- -- +QT -- -- 800 to 850 Water or oil 580 to 660 X10Ni9 1.5682 +N+NT 880 to 915 + 775 to 805 565 to 605 e
- -- -- +QT f (880 to 930) -- 770 to 820 water or oil 540 to 600 a N = Normalizing ; QT = Quenching and Tempering; NT = Normalizing and Tempering. b Where two types of heat treatment are specified for a steel grade, the application depends on wall thickness and T/D ratio. The decision is left to the manufacturer but shall be reported in the inspection document. c When choosing the cooling medium, the influence of other parameters, such as dimensions and quenching temperature, on properties and crack susceptibility should be taken into account. Other cooling media such as synthetic quenchants may also be used. d Tempering can occasionally be necessary after normalizing; the decision shall be left to the discretion of the manufacturer but shall be stated to the customer at the time of enquiry and order. Steel tubes treated in such a way shall be designated by the steel name supplemented by the symbol “+NT “. e Cooling at still air or accelerated cooling. f An additional prenormalizing treatment, in the temperature range indicated may be necessary for this grade. In such a case, the manufacturer shall inform the purchaser.
8 Requirements 8.1 General When supplied in a delivery condition indicated in 7.2 and inspected in accordance with Clauses 9, 10 and 11, the tubes shall conform to the requirements of this Part EN 10216. In addition, the general technical delivery requirements specified in EN 10021 shall apply. SIST EN 10216-4:2014
EN 10216-4:2013 (E) 10 Tubes shall be suitable for hot and cold bending provided the bending is carried out in an appropriate manner. 8.2 Chemical composition 8.2.1 Cast analysis The cast analysis reported by the steel producer shall apply and conform to with the requirements of Table 2. When welding tubes are produced in accordance with this Part of EN 10216, account should be taken of the fact that the behaviour of the steel during and after welding is dependent not only on the steel, but also on the applied heat treatment and the conditions of preparing for and carrying out the welding. 8.2.2 Product analysis Option 3: A product analysis for the tubes shall be supplied. Table 3 specifies the permissible deviations of the product analysis from the specified limits on cast analysis given in Table 2.
SIST EN 10216-4:2014
EN 10216-4:2013 (E) 11 Table 2 — Chemical composition (cast analysis) a, in % by mass Steel grade C Si Mn P S Cr Ni Mo Al total b Cu c Nb Ti V Steel name Steel number
max max
min max max max max P215NL 1.0451 ≤ 0,15 ≤ 0,35 0,40 to 1,20 0,025 0,010 ≤ 0,30 ≤ 0,30 ≤ 0,08 0,020 0,30 0,010 0,040 0,02 P255QL 1.0452 ≤ 0,17 ≤ 0,35 0,40 to1,20 0,025 0,010 ≤ 0,30 ≤ 0,30 ≤ 0,08 0,020 0,30 0,010 0,040 0,02 P265NL 1.0453 ≤ 0,20 ≤ 0,40 0,60 to 1,40 0,025 0,010 ≤ 0,30 ≤ 0,30 ≤ 0,08 0,020 0,30 0,010 0,040 0,02 26CrMo4-2 1.7219 0,22 to 0,29 ≤ 0,35 0,50 to 0,80 0,025 0,010 0,90 to 1,20 -- 0,15 to 0,30 -- 0,30 -- -- -- 11MnNi5-3 1.6212 ≤ 0,14 ≤ 0,50 0,70 to 1,50 0,025 0,010 -- 0,30d to 0,80 -- 0,020 0,30 0,05 -- 0,05 13MnNi6-3 1.6217 ≤ 0,16 ≤ 0,50 0,85 to 1,70 0,025 0,010 -- 0,30d to 0,85 -- 0,020 0,30 0,05 -- 0,05 12Ni14 1.5637 ≤ 0,15 0,15 to 0,35 0,30 to 0,80 0,025 0,005 -- 3,25 to 3,75 -- -- 0,30 -- -- 0,05 X12Ni5 1.5680 ≤ 0,15 ≤ 0,35 0,30 to 0,80 0,020 0,005 -- 4,5 to 5,3 -- -- 0,30 -- -- 0,05 X10Ni9 1.5682 ≤ 0,13 0,15 to 0,35 0,30 to0,80 0,020 0,005 -- 8,5 to 9,5 ≤ 0,10 -- 0,30 -- -- 0,05 a
Elements not included in this table shall not be intentionally added to the steel without the agreement of the purchaser, except for elements which may be added for finishing the cast. All appropriate measures shall be taken to prevent the addition of undesirable elements from scrap or other materials used in the steel making process. b
By agreement between purchaser and manufacturer, aluminium may be replaced by other elements having a similar effect. c
Option 2: In order to facilitate subsequent forming operation, an agreed maximum copper content lower than indicated and an agreed specified maximum tin content shall apply. d
The lower limit for the nickel content may be reduced to not less than 0,15 % for tubes with wall thickness not exceeding 10 mm. SIST EN 10216-4:2014
EN 10216-4:2013 (E) 12 Table 3 — Permissible deviations of the product analysis from specified limits on cast analysis given in Table 2 Element Limiting value for the cast analysis in accordance with Table 2 % by mass Permissible deviation of the product analysis % by mass C ≤ 0,29 ±
0,02 Si ≤ 0,40 ±
0,05 > 0, 40 to ≤ 0,50 +
0,06 Mn ≤ 1,70 +
0,10 - 0,05 P ≤ 0,025 + 0,005 S ≤ 0,015 + 0,003 > 0,015
to ≤ 0,020 + 0,005 Al ≥ 0,020 − 0,005 Cr ≤ 1,20 ±
0,10 Cu ≤ 0,30 +
0,05 Mo ≤ 0,30 ±
0,05 Nb ≤ 0,05 + 0,005 Ni ≤ 0,85 ±
0,05 > 0,85 to ≤ 3,75 ±
0,07 > 3,75 to ≤ 5,3 ±
0,10 > 5,3 to ≤ 9,5 ±
0,15 Ti ≤ 0,040 + 0,01 V ≤ 0,05 + 0,01 8.3 Mechanical properties The mechanical properties of the tubes shall conform to the requirements in Table 4 and Table 5 and in 11.3 to 11.7, irrespective of whether they are verified or not (see Table 10). Table 4 — Mechanical properties at room temperature for wall thickness up to and including 40 mm
Steel grade Tensile properties Steel Name Steel number Upper yield strength or proof strength ReH or Rp0,2 min Tensile strength Rm
Elongation A min % a MPa * MPa * l t P215NL 1.0451 215 b 360 to 480 25 23 P255QL 1.0452 255 360 to490 23 21 P265NL 1.0453 265 c 410 to 570 24 22 26CrMo4-2 1.7219 440 560 to 740 18 16 11MnNi5-3 1.6212 285 410 to 530 24 22 13MnNi6-3 1.6217 355 490 to 610 22 20 12Ni14 1.5637 345 440 to 620 22 20 X12Ni5 1.5680 390 510 to 710 21 19 X10Ni9 1.5682 510 690 to 840 20 18 a l = longitudinal
t = transverse. b For wall thickness ≤ 10 mm. c For wall thickness ≤ 25 mm. * 1 MPA = 1N/mm2 SIST EN 10216-4:2014
EN 10216-4:2013 (E) 13 Table 5 — Minimum impact energy Steel Grade Wall thickness T Orientation of test pieces with respect to tube Minimum average impact energy KV2
J at a temperature of °C Steel Name Steel number mm axis -196 -120 -110 -100 -90 -60 -50 -40 -20 +20 P215NL 1.0451 ≤ 10 Longitudinal - - - - - - - 40 45 55 P255QL 1.0452 ≤
25 Longitudinal - - - - - - 40 45 50 60 Transverse
- - - - - - 27 30 35 40 [ 25
to
≤ 40 Longitudinal - - - - - - - 40 45 55 Transverse
- - - - - - - 27 30 35 P265NL 1.0453 ≤ 25 Longitudinal - - - - - - - 40 45 50 Transverse - - - - - - - 27 30 35 26CrMo4-2 1.7219 ≤ 40 Longitudinal - - - - - 40 40 45 50 60 Transverse - - - - - 27 27 30 35 40 11MnNi5-3 1.6212 ≤ 40 Longitudinal - - - - - 40 45 50 55 70 13MnNi6-3 1.6217 Transverse - - - - - 27 30 35 40 45 12Ni14 1.5637 ≤ 25 Longitudinal
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