Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties

This European Standard specifies the technical delivery conditions in two test categories for seamless tubes of circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.
This Part of EN 10216 may also be applied for tubes of non-circular cross section; necessary modification should be agreed at the time of enquiry and order.
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.

Nahtlose Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 2: Rohre aus unlegierten und legierten Stählen mit festgelegten Eigenschaften bei erhöhten Temperaturen

Diese Europäische Norm enthält die technischen Lieferbedingungen für nahtlose Rohre mit kreisförmigem Querschnitt aus unlegiertem und legiertem Stahl mit festgelegten Eigenschaften bei erhöhten Temperaturen und legt dafür zwei Prüfkategorien fest.
Dieser Teil der EN 10216 kann auch für Rohre mit nichtkreisförmigem Querschnitt angewendet werden; notwendige Anpassungen sollten bei der Anfrage und Bestellung vereinbart werden.
ANMERKUNG   Nach Veröffentlichung dieser Norm im EU Amtsblatt (OJEU) unter der Richtlinie 2014/68/EU ! ist die Annahme ihrer Konformität mit den grundlegenden Anforderungen (ESR) der Richtlinie 2014/68/EU " 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 Ausrüstungsteils ermittelt werden, um damit zu verifizieren, dass den ESR der Druckgeräterichtlinie 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 2: Tubes en acier non allié et allié avec caractéristiques spécifiées à température élevée

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 température
élevée.
La présente partie de l’EN 10216 peut aussi s’appliquer pour des tubes de section non circulaire ; les modifications
nécessaires doivent faire l’objet d’un accord lors de l’appel d’offres et de la commande.
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 - 2. del: Nelegirane in legirane jeklene cevi s specificiranimi lastnostmi za delo pri povišanih temperaturah

Ta evropski standard določa tehnične dobavne pogoje v dveh preskusnih kategorijah za nevarjene cevi s krožnim prerezom iz nelegiranega in legiranega jekla ter specificiranimi lastnostmi za delo pri povišanih temperaturah. Ta del standarda EN 10216 se lahko uporablja tudi za cevi z nekrožnim prerezom, pri čemer naj bi se o potrebni spremembi dogovorili ob oddaji povpraševanja in naročila.
OPOMBA: Ko bo ta 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, standard pa ne bo zagotavljal ustreznosti materiala za določen element opreme. Zato bo treba oceniti tehnične podatke, podane v tem standardu za materiale, glede na zahteve o zasnovi določenega elementa opreme, da se zagotovi, da so upoštevane osnovne varnostne zahteve Direktive o tlačni opremi. Oceno opravi projektant ali proizvajalec tlačne opreme ob upoštevanju nadaljnjih proizvodnih postopkov, ki lahko vplivajo na lastnosti osnovnih materialov.

General Information

Status
Published
Publication Date
17-Dec-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
18-Dec-2019
Completion Date
18-Dec-2019

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SLOVENSKI STANDARD
SIST EN 10216-2:2014+A1:2020
01-februar-2020
Nevarjene jeklene cevi za tlačne posode - Tehnični dobavni pogoji - 2. del:
Nelegirane in legirane jeklene cevi s specificiranimi lastnostmi za delo pri
povišanih temperaturah

Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-

alloy and alloy steel tubes with specified elevated temperature properties

Nahtlose Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 2:

Rohre aus unlegierten und legierten Stählen mit festgelegten Eigenschaften bei erhöhten

Temperaturen

Tubes sans soudure en acier pour service sous pression - Conditions techniques de

livraison - Partie 2: Tubes en acier non allié et allié avec caractéristiques spécifiées à

température élevée
Ta slovenski standard je istoveten z: EN 10216-2:2013+A1:2019
ICS:
23.020.32 Tlačne posode Pressure vessels
77.140.75 Jeklene cevi in cevni profili Steel pipes and tubes for
za posebne namene specific use
SIST EN 10216-2:2014+A1:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 10216-2:2014+A1:2020
---------------------- Page: 2 ----------------------
SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2019
EUROPÄISCHE NORM
ICS 23.040.10; 77.140.75 Supersedes EN 10216-2:2013
English Version
Seamless steel tubes for pressure purposes - Technical
delivery conditions - Part 2: Non-alloy and alloy steel tubes
with specified elevated temperature properties

Tubes sans soudure en acier pour service sous Nahtlose Stahlrohre für Druckbeanspruchungen -

pression - Conditions techniques de livraison - Partie 2: Technische Lieferbedingungen - Teil 2: Rohre aus

Tubes en acier non allié et allié avec caractéristiques unlegierten und legierten Stählen mit festgelegten

spécifiées à température élevée Eigenschaften bei erhöhten Temperaturen

This European Standard was approved by CEN on 17 August 2013 and includes Amendment 1 approved by CEN on 23

September 2019.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10216-2:2013+A1:2019 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
Contents Page

European foreword ................................................................................................................................................................ 4

1 Scope ............................................................................................................................................................................. 6

2 Normative references ............................................................................................................................................. 6

3 Terms and definitions ............................................................................................................................................ 7

4 Symbols ........................................................................................................................................................................ 8

5 Classification and designation ............................................................................................................................. 8

5.1 Classification .............................................................................................................................................................. 8

5.2 Designation................................................................................................................................................................. 8

6 Information to be supplied by the purchaser ................................................................................................ 9

6.1 Mandatory information ......................................................................................................................................... 9

6.2 Options ......................................................................................................................................................................... 9

6.3 Examples of an order ........................................................................................................................................... 10

7 Manufacturing process ........................................................................................................................................ 10

7.1 Steel making process ........................................................................................................................................... 10

7.2 Tube manufacture and delivery conditions ................................................................................................ 10

8 Requirements ......................................................................................................................................................... 12

8.1 General ...................................................................................................................................................................... 12

8.2 Chemical composition ......................................................................................................................................... 13

8.3 Mechanical properties ......................................................................................................................................... 19

8.4 Appearance and internal soundness.............................................................................................................. 25

8.5 Straightness ............................................................................................................................................................. 25

8.6 Preparation of ends .............................................................................................................................................. 25

8.7 Dimensions, masses and tolerances ............................................................................................................... 26

9 Inspection ................................................................................................................................................................ 32

9.1 Types of inspection ............................................................................................................................................... 32

9.2 Inspection documents ......................................................................................................................................... 32

9.3 Summary of inspection and verification testing ........................................................................................ 33

10 Sampling ................................................................................................................................................................... 34

10.1 Frequency of tests ................................................................................................................................................. 34

10.2 Preparation of samples and test pieces ........................................................................................................ 35

11 Verification test methods ................................................................................................................................... 36

11.1 Chemical analysis .................................................................................................................................................. 36

11.2 Tensile test .............................................................................................................................................................. 36

11.3 Flattening test ......................................................................................................................................................... 36

11.4 Ring tensile test ..................................................................................................................................................... 37

11.5 Drift expanding test .............................................................................................................................................. 38

11.6 Ring expanding test .............................................................................................................................................. 39

11.7 Impact test ............................................................................................................................................................... 39

11.8 Leak tightness test ................................................................................................................................................ 40

11.9 Dimensional inspection ...................................................................................................................................... 40

11.10 Visual examination ............................................................................................................................................... 40

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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)

11.11 Non-destructive testing ....................................................................................................................................... 40

11.12 Material identification ......................................................................................................................................... 41

11.13 Retests, sorting and reprocessing ................................................................................................................... 41

12 Marking ..................................................................................................................................................................... 41

12.1 Marking to be applied .......................................................................................................................................... 41

12.2 Additional marking ............................................................................................................................................... 42

13 Protection ................................................................................................................................................................. 42

Annex A (informative) Creep rupture strength values ........................................................................................... 43

Annex B (informative) Technical changes from the previous edition ............................................................... 49

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of Directive 2014/68/EU aimed to be covered.............................................................. 50

Bibliography .......................................................................................................................................................................... 51

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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
European foreword

This document (EN 10216-2:2013+A1:2019) has been prepared by Technical Committee CEN/TC 459

SC/10 “Steel tubes, and iron and steel fittings”, 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 2020, and conflicting national standards shall be

withdrawn at the latest by June 2020.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document includes Amendment 1 approved by CEN on 23 September 2019.
This document supersedes !EN 10216-2:2013".

The start and finish of text introduced or altered by amendment is indicated in the text by tags !".

For the list of the most significant technical changes that !were made in EN 10216-2:2013", see

Annex B.

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 (the present

document)
— Part 3: Alloy fine grain steel tubes

— Part 4: Non-alloy and alloy steel tubes with specified low temperature properties

— 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 organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
!deleted text"
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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
1 Scope

This European Standard specifies the technical delivery conditions in two test categories for seamless

tubes of circular cross section, with specified elevated temperature properties, made of non-alloy and

alloy steel.

This Part of EN 10216 may also be applied for tubes of non-circular cross section; necessary

modification should be agreed at the time of enquiry and order.

NOTE Once this 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 (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, 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 10020:2000", Definitions and classification of grades of steel
!EN 10021:2006", General technical delivery requirements 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 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 10266:2003", 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 4885:2018, Ferrous materials –Heat treatments – Vocabulary (ISO 4885:2018)"

EN ISO 6892-1:2009, Metallic materials - Tensile testing - Part 1: Method of test at room temperature

(ISO 6892-1:2009)
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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)

EN ISO 6892-2:2011, Metallic materials - Tensile testing - Part 1: Method of test at elevated temperature

(ISO 6892-2:2011)
!EN ISO 8492:2013", Metallic materials - Tube - Flattening test (ISO 8492)
!EN ISO 8493:2004", Metallic materials - Tube - Drift expanding test (ISO 8493)
!EN ISO 8495:2013", Metallic materials - Tube - Ring expanding test (ISO 8495)
!EN ISO 8496:2013", Metallic materials - Tube - Ring tensile test (ISO 8496)

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 14284:1996)

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 ISO 4885" and 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.
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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
4 Symbols

For the purposes of this document, the symbols given in EN 10266 and the following apply:

— d specified inside diameter
— d specified minimum inside diameter
min
— T specified minimum wall thickness
min
— D calculated outside diameter
— d calculated inside diameter
— T calculated wall thickness
— TC test category
5 Classification and designation
5.1 Classification

In accordance with the classification system in EN 10020, the steel grades P195GH, P235GH and

P265GH are classified as non-alloy quality steels and the other steel grades are classified as alloy special

steels.
5.2 Designation

5.2.1 For 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;
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 for wall thickness less

than or equal to 16 mm, expressed in MPa (see Table 4);
— the symbols GH for elevated 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 3 and footnote c of Table 1.

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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
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 or a set of dimensions covered by Option

11) (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 (TC) 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) verification of impact energy (see Table 4);

5) verification of longitudinal impact energy at -10° C for non-alloy steel grades (see Table 4);

6) verification of elevated temperature properties (see 8.3.2);
7) selection test method for verification of leak-tightness (see 8.4.2.1);

8) Non-Destructive Testing for test category 2 tubes for detection of transverse imperfections (see

8.4.2.2);

9) Non-Destructive Testing for test category 2 tubes for detection of laminar imperfections (see

8.4.2.2);
10) special ends preparation (see 8.6);
11) set of dimensions other than D and T (see 8.7.1);
12) exact lengths (see 8.7.3);

13) the type of inspection certificate 3.2 other than the standard document (see 9.2.1);

14) test pressure for hydrostatic leak-tightness test (see 11.8.1);
15) wall thickness measurement away from the ends (see 11.9);
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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
16) Non-Destructive Testing method (see 11.11.1);
17) additional marking (see 12.2);
18) protection (see Clause 13).
6.3 Examples of an order
6.3.1 Example 1

100 t of seamless tube with an outside diameter of 168,3 mm, a wall thickness of 4,5 mm, in accordance

with EN 10216-2, made of steel grade P265GH, to test category 1 with a 3.2 inspection certificate in

accordance with EN 10204:
EXAMPLE 100 t - Tube - 168,3 x 4,5 - EN 10216-2 - P265GH - TC1 - Option 13: 3.2
6.3.2 Example 2

100 m of seamless tube with a minimum inside diameter of 240 mm, a minimum wall thickness of 40

mm in accordance with !EN 10216-2", made of steel grade 10CrMo9-10, with a 3.2 inspection

certificate in accordance with EN 10204:
EXAMPLE 100 m - Tube - d 240 x T 40 - EN 10216-2 - 10CrMo9-10 - Option 13: 3.2
min min
7 Manufacturing process
7.1 Steel making 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.
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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)

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 — Heat treatment conditions
Steel grade Austenitizing Tempering
Heat
Temperature Temperature
Steel Cooling Cooling
treatment
Steel name
number Medium medium
°C °C
P195GH 1.0348 880 to 940 air - -
P235GH 1.0345 880 to 940 air - -
P265GH 1.0425 +N 880 to 940 air - -
20MnNb6 1.0471 900 to 960 air - -
16Mo3 1.5415 890 to 950 air - -
8MoB5-4 1.5450 920 to 960 air - -
b c
14MoV6-3 1.7715 930 to 990 air 680 to730 air
+NT
b c
10CrMo5-5 1.7338 900 to 960 air 650 to 750 air
+NT
b c
13CrMo4-5 1.7335 900 to 960 air 660 to 730 air
+NT
b c
10CrMo9-10 1.7380 900 to 960 air 680 to 750 air
+NT
11CrMo9-10 1.7383 +QT 900 to 960 air or liquid 680 to 750 air
25CrMo4 1.7218 +QT 860 to 900 air or liquid 620 to 680 air
20CrMoV13-5-5 1.7779 +QT 980 to 1030 air or liquid 680 to 730 air
15NiCuMoNb5-6-4 1.6368 880 to 980 air 580 to 680 air
+NT
7CrWVMoNb9-6 1.8201 1 040 to 1 080 air 730 to 780 air
+NT
7CrMoVTiB10-10 1.7378 980 to 1 020 air 730 to 770 air
+NT
Furnace
X11CrMo5+I 1.7362+I +I 890 to 950 - -
atmosphere
1.7362+NT
X11CrMo5+NT1 +NT1 930 to 980 Air 730 to 770 air
1.7362+NT
X11CrMo5+NT2 930 to 980 air 710 to 750 air
+NT2
Furnace
X11CrMo9-1+I 1.7386+I +I 950 to 980 - -
atmosphere
X11CrMo9-1+NT 1.7386+NT 890 to 950 air 720 to 800 air
+NT
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SIST EN 10216-2:2014+A1:2020
EN 10216-2:2013+A1:2019 (E)
Steel grade Austenitizing Tempering
Heat
Temperature Temperature
Steel Cooling Cooling
treatment
Steel name
number Medium medium
°C °C
X10CrMoVNb9-1 1.4903 1 040 to 1 090 air 730 to 780 air
+NT
X10CrWMoVNb9-2 1.4901 +NT 1 040 to 1 090 Air 730 to 780 air
X11CrMoWVNb9-
1.4905 1 040 to 1 080 Air 740 to 780 air
+NT
1-1
X20CrMoV11-1 1.4922 1 020 to 1 080 air 730 to 780 air
+NT

+N = Normalizing, +NT = Normalizing + Tempering, +QT = Quenching + Tempering (air or liquid), +I = Isothermal Annealing.

Normalizing includes Normalizing Forming. Normalized Forming shall be carried out in a temperature range from 880 °C to 1 000 °C.

For these steel grades it may be necessary in the case of wall thickness T above 10 mm or T/D > 0,15 to apply quenching and

tempering in order to achieve the intended structure and material properties. 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 “+QT “.

For these steel grades it may be necessary in case of wall thickness T above 16 mm or T/D > 0,15 to apply quenching and

tempering in order to achieve the intended structure and material properties. 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 “+QT”.
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 of EN 10216.
In addition, the general technical delivery re
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