EN 10216-4:2002

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 a 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 10216-4:2002SIST EN 10216-4:2003en01-april-2003SIST EN 10216-4:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10216-4May 2002ICS 23.040.10; 77.140.75English versionSeamless steel tubes for pressure purposes - Technical deliveryconditions - Part 4: Non-alloy and alloy steel tubes with specifiedlow temperature propertiesTubes sans soudure en acier pour service sous pression -Conditions techniques de livraison - Partie 4: Tubes enacier non allié et allié avec caractéristiques spécifiées àbasse températureNahtlose Stahlrohre für Druckbeanspruchungen -Technische Lieferbedingungen - Teil 4: Rohre ausunlegierten und legierten Stählen mit festgelegtenEigenschaften bei tiefen TemperaturenThis European Standard was approved by CEN on 25 April 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10216-4:2002 ESIST EN 10216-4:2003

of steel tubes Part 1 : Automatic electromagnetic testing of seamlessand welded (except submerged arc welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness.EN 10246-5, Non-Destructive Testing
of steel tubes – Part 5: Automatic full peripheral magnetictransducer/flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steeltubes for the detection of longitudinal imperfections.EN 10246-6, Non-Destructive
Testing of steel tubes - Part 6: Automatic full peripheral ultrasonic testing ofseamless steel tubes for the detection of transverse imperfections.SIST EN 10216-4:2003

of steel tubes - Part 7 : Automatic full peripheral ultrasonic testing ofseamless and welded (except submerged arc welded) steel tubes for the detection of longitudinalimperfections.EN 10246-14, Non-Destructive Testing of steel tubes - Part 14:Automatic ultrasonic testing of seamless andwelded (except submerged arc welded) steel tubes for the detection of laminar imperfections.EN 10256, Non-Destructive Testing of steel tubes - Qualification and competence of level 1 and level 2 NDTpersonnel.EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanicaltesting (ISO 377:1997)EN ISO 2566-1, Steel - Conversion of elongation values – Part 1: Carbon and low-alloy steels (ISO 2566-1:1984)prEN 10168 1) Iron and steel products - Inspection documents - List of information and descriptionprEN 10266 1) Steel tubes, fittings and structural hollow sections - Symbols and definition of terms for use inproduct standardsISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemicalcompositionCR 10260, Designation systems for steel - Additional symbolsCR 10261, ECISS Information Circular IC 11 - Iron and steel - Review of available methods of chemicalanalysis.3 TERMS AND DEFINITIONSFor the purposes of this Part of EN 10216, the terms and definitions of EN 10020, EN 10021, EN 10052,prEN 10266 and the following apply:3.1test categoryclassification that indicates the extent and level of inspection and testing.3.2employerorganisation for which a person works on a regular basis.NOTEThe employer may be either the tube manufacturer or
supplier or a third party organisation providing Non-Destructive Testing
(NDT) services.4 SYMBOLSFor the purposes of this Part of EN 10216, the symbols given prEN 10266 and the following apply: TCtest category
1)In preparation; until this document is published as a European Standard, the corresponding national standard(s)should be agreed at the time of enquiry and order.SIST EN 10216-4:2003

the classification system in EN 10020, the steel grades P 215NL, P 255QL and P265NLare classified as non-alloy quality steels and the other steel grades are classified as alloy special steels.5.2 Designation5.2.1For the tubes covered by this Part of EN 10216 the steel designation
consists of: the number of this Part of EN 10216 ;plus either: the steel name in accordance with
EN 10027-1 and CR 10260;or: the steel number allocated in accordance with
EN 10027-2.5.2.2The 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 (seeTable 4); the symbol of the heat treatment for the steel grade concerned (see Table 1); the symbol L for low temperature.5.2.3The steel name of alloy-steel grades is designated by the chemical composition (see Table 2) andthe symbols for the heat treatment, where specified in column 1 and footnote a) of Table 16 INFORMATION TO BE SUPPLIED BY THE PURCHASER6.1 Mandatory informationThe 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 OptionsA number of options are specified in this Part of EN 10216 and these are listed below. In the event that thepurchaser does not indicate a wish to implement any of these options at the time of enquiry and order, thetubes shall be supplied in accordance with
the basic specification (see 6.1).SIST EN 10216-4:2003

for test category 2 tubes for detection of transverse imperfections (see8.4.2.2);6) Non-Destructive Testing
for test category 2 tubes for detection of laminar imperfections (see8.4.2.2);7) special ends preparation (see 8.6);8) exact lengths (see 8.7.3);9) the type of inspection document 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 order50 t of seamless tube with an outside diameter of 168,3 mm, a wall thickness of 4,5 mm in accordance withEN 10216-4,
made of steel grade P265NL, test category 1,
with a 3.1.C inspection certificate in accordancewith
EN 10204:50 t - Tube - 168,3 x 4,5 - EN 10216-4 - P265NL - TC1 - Option 9: 3.1.C7 MANUFACTURING PROCESS7.1 Steelmaking processThe steelmaking process is at the discretion of the manufacturer.7.2 Deoxidation processSteels shall be fully killed.7.3 Tube manufacture and delivery conditions7.3.1All NDT activities shall be carried out by qualified and competent level 1,2 and/or 3 personnelauthorised to operate by the employer.The qualification shall be in accordance with EN 10256 or, at least, an equivalent to it.It is recommended that the level 3 personnel be certified in accordance with EN 473 or, at least, anequivalent to it.SIST EN 10216-4:2003

7.3.3.Option 1: The tubes shall be cold finished before heat treatment.7.3.3The tubes shall be supplied in the relevant heat treatment conditions as specified in Table 1.Table 1 — Delivery conditionsSteel gradeQuenching and temperingSteel nameSteelnumberHeattreatment a bNormalisingtemperature° CTemperingtemperature°CHardeningtemperature° CCoolingmedium cTemperingtemperature°CP215NL1.0451+N900 to 940--------P255QL1.0452+QT----890 to 930Water or oil600 to 680P265NL1.0453+N880 to 940--------26CrMo4-21.7219+QT----830 to 860Water or oil600 to 68011 MnNi5-31.6212+N d890 to 940(580 to 640)------13 MnNi6-31.6217+N d)890 to 940(580 to 640)------+NT830 to 880580 to 640------12Ni141.5637+QT----820 to 880Water or oil580 to 660+NT800 to 850580 to 640------X12Ni51.5680+QT----800 to 850Water or oil580 to 660+N+NT880 to 915+775 to 805565 to 605 e-----X10Ni91.5682+QT f(880 to 930)--770 to 820water or oil540 to 600aN = Normalising ; QT = Quenching and Tempering; NT = Normalising and TemperingbWhere two types of heat treatment are specified for a steel grade, the application depends on wall thickness and T/Dratio. The decision is left to the manufacturer but shall be reported in the inspection document.cWhen choosing the cooling medium the influence of other parameters, such as dimensions and quenchingtemperature, on properties and crack susceptibility should be taken into account. Other cooling media such assynthetic quenchants may also be
used.dTempering can occasionally be necessary after normalising; The decision shall be left to the discretion of themanufacturer but shall be stated to the customer at the time of enquiry and order. Steel tubes treated in such a wayshall be designated by the steel name supplemented by the symbol “+NT “.eCooling at still air or accelerated cooling.fAn additional prenormalising treatment, in the temperature range indicated may be necessary for this grade. In such acase the manufacturer shall inform the purchaser.SIST EN 10216-4:2003

this Part of EN 10216, account should be taken of the factthat the behaviour of the steel during and after welding is dependent not only on the steel, but also on the applied heattreatment and the conditions of preparing for and carrying out the welding.8.2.2 Product analysisOption 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 analysisgiven in Table 2 are specified in Table 3.8.3 Mechanical propertiesThe mechanical properties of the tubes shall conform to the requirements in Tables 4 and 5 and in 11.3 to11.6.SIST EN 10216-4:2003
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