EN 10216-5:2021
(Main)Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes
Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes
This document specifies the technical delivery conditions in two test categories for seamless tubes of a circular cross section made of austenitic (including creep resisting steel) 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/EC, presumption of conformity to the Essential Safety Requirements (ESR) of Directive 2014/68/EC is limited to technical data of materials in this document 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 will be done by the designer or manufacturer of the pressure equipment, taking also into account the subsequent manufacturing processes which could affect properties of the base materials.
Nahtlose Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 5: Rohre aus nichtrostenden Stählen
Dieses Dokument legt die technischen Lieferbedingungen mit zwei Testkategorien für nahtlose Rohre mit kreis¬för¬mi¬gem Querschnitt aus austenitischen (einschließlich warmfesten) Stählen und aus austenitisch-ferritischen nichtrostenden Stählen fest, die für Druckbeanspruchungen und für korrosive Medien bei Raumtem¬pe¬ra¬tur, bei tiefen Temperaturen und bei erhöhten Temperaturen bestimmt sind.
ANMERKUNG Nach Veröffentlichung dieses Dokumentes im EU Amtsblatt (OJEU) unter der Richtlinie 2014/68/EU ist die Annahme ihrer Konformität mit den grundlegenden Anforderungen (ESR, en: Essential Safety Requirements) der Richtlinie 2014/68/EU auf die technischen Daten von Werkstoffen in diesem Dokument 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 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 pour service sous pression - Conditions techniques de livraison - Partie 5 : Tubes en aciers inoxydables
Le présent document spécifie les conditions techniques de livraison, pour deux catégories d’essai, pour les tubes sans soudure à section circulaire en acier inoxydable austénitique (y compris acier résistant au fluage) et austéno-ferritique, qui sont destinés à être utilisés en service sous pression et pour des applications avec résistance à la corrosion, à température ambiante, à basse température ou à température élevée.
NOTE Dès lors que la présente Norme européenne est publiée dans le Journal Officiel de l’Union européenne (JOUE) en lien avec la Directive 2014/68/UE, la présomption de conformité avec les exigences essentielles de sécurité de la Directive 2014/68/UE 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 Équipement Sous Pression soient satisfaites, évaluation qui sera effectuée par le concepteur ou le fabricant d’équipement sous pression, en tenant aussi compte des procédés ultérieurs de fabrication qui peuvent affecter les propriétés des matériaux de base.
Nevarjene jeklene cevi za tlačne posode - Tehnični dobavni pogoji - 5. del: Cevi iz nerjavnega jekla
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2021
Nadomešča:
SIST EN 10216-5:2014
Nevarjene jeklene cevi za tlačne posode - Tehnični dobavni pogoji - 5. del: Cevi iz
nerjavnega jekla
Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5:
Stainless steel tubes
Nahltlose Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 5:
Rohre aus nichtrostenden Stählen
Tubes sans soudure pour service sous pression - Conditions techniques de livraison -
Partie 5 : Tubes en aciers inoxydables
Ta slovenski standard je istoveten z: EN 10216-5:2021
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 10216-5
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 23.040.10; 77.140.75 Supersedes EN 10216-5:2013
English Version
Seamless steel tubes for pressure purposes - Technical
delivery conditions - Part 5: Stainless steel tubes
Tubes sans soudure pour service sous pression - Nahtlose Stahlrohre für Druckbeanspruchung -
Conditions techniques de livraison - Partie 5 : Tubes en Technische Lieferbedingungen - Teil 5: Rohre aus
aciers inoxydables nichtrostenden Stählen
This European Standard was approved by CEN on 12 March 2021.
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10216-5:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
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
6.3.1 Example 1 . 10
6.3.2 Example 2 . 10
7 Manufacturing process . 10
7.1 Steelmaking process . 10
7.2 Tube manufacture and delivery conditions . 11
8 Requirements . 12
8.1 General . 12
8.2 Chemical composition . 12
8.2.1 Cast analysis . 12
8.2.2 Product analysis . 12
8.3 Mechanical properties . 18
8.3.1 At room temperature . 18
8.3.2 At elevated temperature . 18
8.3.3 At low temperature . 18
8.4 Corrosion resistance . 27
8.5 Appearance and soundness . 27
8.5.1 Appearance . 27
8.5.2 Soundness . 27
8.6 Straightness . 28
8.7 Preparation of ends . 28
8.8 Dimensions, masses and tolerances . 29
8.8.1 Outside diameter and wall thickness . 29
8.8.2 Mass . 29
8.8.3 Lengths . 29
8.8.4 Tolerances . 29
9 Inspection . 30
9.1 Type of inspection . 30
9.2 Inspection documents . 30
9.2.1 Types of inspection documents. 30
9.2.2 Content of inspection documents . 31
9.3 Summary of inspection and verification testing . 31
10 Sampling . 31
10.1 Test unit . 31
10.2 Preparation of samples and test pieces . 33
10.2.1 Selection and preparation of samples for product analysis . 33
10.2.2 Location, orientation and preparation of samples and test pieces for mechanical
tests . 33
11 Verification test methods . 34
11.1 Chemical analysis . 34
11.2 Tensile test . 34
11.2.1 At room temperature . 34
11.2.2 At elevated temperature . 34
11.3 Technological tests. 35
11.3.1 General . 35
11.3.2 Flattening test . 35
11.3.3 Ring tensile test . 35
11.3.4 Drift expanding test . 36
11.3.5 Ring expanding test . 36
11.4 Impact test . 36
11.5 Intergranular corrosion test . 37
11.6 Leak tightness test . 37
11.6.1 Hydrostatic test . 37
11.6.2 Eddy current test . 38
11.6.3 Ultrasonic test . 38
11.7 Dimensional inspection . 38
11.8 Visual examination . 38
11.9 Non-destructive testing . 38
11.10 Material identification . 38
11.11 Retests, sorting and reprocessing . 38
12 Marking . 39
12.1 Marking to be applied . 39
12.2 Additional marking . 39
13 Handling and packaging . 39
Annex A (informative) Reference data of strength values for creep rupture of austenitic
steels in the solution annealed condition . 40
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2014/68/EU aimed to be covered . 46
Bibliography . 47
European foreword
This document (EN 10216-5:2021) 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 October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
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 supersedes EN 10216-5:2013.
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, see informative Annex ZA, which is an integral part of this
document.
The following changes have been made in comparison to the previous edition EN 10216-5:2013:
a) the normative references have been updated;
b) in Table 6 and Table 7, the footnote “a” has been completed;
c) in 8.8, the dated reference of the standards has been deleted;
d) in Table 15, the frequency of testing in test category 2 for tensile test at room temperature has been
modified;
e) the impact testing (11.4.1) has been modified;
f) the standard has been editorially revised.
EN 10216 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;
— Part 5: Stainless steel tubes (the present document).
Another European Standard series covering tubes for pressure purposes is:
— EN 10217 series, 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.
1 Scope
This document specifies the technical delivery conditions in two test categories for seamless tubes of a
circular cross section made of austenitic (including creep resisting steel) 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/EC, presumption of conformity to the Essential Safety Requirements (ESR) of Directive 2014/68/EC is
limited to technical data of materials in this document 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 will be done by the designer or manufacturer of the pressure equipment, taking also into account the
subsequent manufacturing processes which could 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 10027-1:2016, Designation systems for steels - Part 1: Steel names
EN 10027-2:2015, 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 10088-1:2014, 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 10266:2003, Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for
use in product standards
CEN/TR 10261:2018, 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 643:2020, Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected
version 2020-03)
EN ISO 1127:1996, Stainless steel tubes - Dimensions, tolerances and conventional masses per unit length
(ISO 1127:1992)
EN ISO 2566-2:1999, Steel - Conversion of elongation values - Part 2: Austenitic steels (ISO 2566-2:1984)
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 4885:2018, Ferrous materials - Heat treatments - Vocabulary (ISO 4885:2018)
EN ISO 6892-1:2019, Metallic materials - Tensile testing - Part 1: Method of test at room temperature
(ISO 6892-1:2019)
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 10893-1:2011, 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 10893-1:2011)
EN ISO 10893-8:2011, Non-destructive testing of steel tubes - Part 8: Automated ultrasonic testing of
seamless and welded steel tubes for the detection of laminar imperfections (ISO 10893-8:2011)
EN ISO 10893-10:2011, 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 10893-10:2011)
EN ISO 14284:2002, Steel and iron - Sampling and preparation of samples for the determination of
chemical composition (ISO 14284:1996)
ISO 11484:2019, Steel products — Employer's qualification system for non-destructive testing (NDT)
personnel
As impacted by EN ISO 10893-1:2011/A1:2020.
As impacted by EN ISO 10893-8:2011/A1:2020.
As impacted by EN ISO 10893-10:2011/A1:2020.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10021:2006,
EN ISO 4885:2018 and EN 10266:2003 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/
— ISO Online browsing platform: available at https://www.iso.org/obp
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 in EN 10266:2003 and the following apply:
— TC test category
NOTE See also Table 1 for symbols of the delivery condition.
5 Classification and designation
5.1 Classification
According to the classification system in EN 10020:2000, the steel grades are classified as:
— austenitic steels (corrosion resisting or creep resisting steels);
— austenitic-ferritic steels.
For more details, see EN 10088-1.
5.2 Designation
For the tubes covered by this document, the steel designation consists of:
— number of this part of EN 10216 (EN 10216-5);
plus either
— steel name in accordance with EN 10027-1:2016;
or
— steel number allocated in accordance with EN 10027-2:2015.
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) quantity (mass or total length or number);
b) term "tube";
c) dimensions (outside diameter D and wall thickness T) (see 8.8.1);
d) designation of the steel grade according to this part of EN 10216 (see 5.2);
e) test category (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 tube shall be supplied in accordance with the basic specification (see 6.1).
1) information about steelmaking process (see 7.1);
2) delivery condition (see 7.2.4);
3) specified range for sulphur content (see Table 2, footnote b);
4) product analysis (see 8.2.2);
5) additional verifications of mechanical properties on samples which have undergone a different or
additional heat treatment (see 8.3.1);
6) verification of impact energy at room temperature (see 8.3.1);
7) agreed mechanical properties at room temperature for austenitic corrosion resisting steel tubes
with wall thicknesses greater than 60 mm (see Table 6, footnote a);
8) agreed mechanical properties at room temperature for austenitic creep resisting steel tubes with
wall thicknesses greater than 50 mm (see Table 7, footnote a);
9) verification of proof strength R or R at elevated temperatures (see 8.3.2.1);
p0,2 p1,0
10) agreed proof strength values at elevated temperatures for austenitic corrosion resisting steel tubes
with wall thicknesses greater than 60 mm (see Table 9, footnote a);
11) verification of impact energy at low temperature (see 8.3.3);
12) intergranular corrosion test (see 8.4);
13) selection of method for verification of leak-tightness test method (see 8.5.2.1);
14) Non-Destructive Testing for test category 2 tubes with specified outside diameter less than or equal
to 101,6 mm and specified wall thickness less than or equal to 5,6 mm for detection of longitudinal
imperfections (see 8.5.2.2);
15) Non-Destructive Testing for test category 2 tubes for detection of transverse imperfections (see
8.5.2.2);
16) Non-Destructive Testing for test category 2 tubes with specified wall thickness greater than 40 mm
for detection of laminar imperfections at tube ends (see 8.5.2.2);
17) special ends preparation (see 8.7);
18) exact lengths (see 8.8.3);
19) sized tube ends for tube of D > 219,1 mm (see Table 12);
20) tolerance classes D 4 and T 4 for tubes ordered cold finished (see Table 13);
21) inspection certificate 3.2 other than the standard document (see 9.2.1);
22) test pressure for hydrostatic leak-tightness test (see 11.6.1);
23) wall thickness measurement away from the ends (see 11.7);
24) additional marking (see 12.2);
25) special protection (see Clause 13).
6.3 Examples of an order
6.3.1 Example 1
2 000 m of hot finished descaled seamless tube with an outside diameter of 168,3 mm, a wall thickness
of 4,5 mm, in accordance with this part of EN 10216, tolerance classes D 2 and T 2, made of steel grade
X2CrNi19-11, to test category 1, with a 3.1 inspection certificate in accordance with EN 10204:
EXAMPLE 2 000 m - HFD Tube – 168,3 X 4,5 - EN 10216-5 - X2CrNi19-11 - TC 1
6.3.2 Example 2
300 m of cold finished descaled seamless tube with an outside diameter of 42,4 mm, a wall thickness of
2,6 mm, in accordance with this part of EN 10216, tolerance classes D 3 and T 3, made of steel grade
1.4301, to test category 2, with intergranular corrosion test (EN ISO 3651-2:1998, method A),
verification of proof strength at 300° C, non-destructive testing for detection of longitudinal and
transverse imperfections, with a 3.2 inspection certificate in accordance with EN 10204:
EXAMPLE 300 m - CFD Tube – 42,4 X 2,6 - EN 10216-5 - 1.4301 – TC 2 - Option 9: 300° C – Option 12: A –
Option 14 - Option 15 - Option 21: 3.2
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 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 11484:2019 (See note 2).
It is recommended that the level 3 personnel be certified in accordance to EN ISO 9712 (See note 2).
The operating authorization issued by the employer shall be in accordance with a written procedure.
NDT operations shall be authorized by a level 3 NDT individual approved by the employer.
NOTE 1 The definition of level 1, 2 and 3 can be found in appropriate standards, e.g. EN ISO 9712 and
ISO 11484.
NOTE 2 Other equivalent standard can be used.
7.2.2 The tubes shall be manufactured by a seamless process, and may be hot finished or cold
finished. 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.
The process of manufacture is left to the discretion of the manufacturer, but see option 2.
7.2.3 The tubes shall be supplied in the solution annealed condition over their full length in either:
— reference heat treatment conditions;
or
— solution annealed conditions obtained directly by extrusion and subsequent cooling provided the
mechanical properties, corrosion resistance and other properties are in accordance with this part
of EN 10216. All specified mechanical properties shall be met even after a subsequent reference
heat treatment (solution annealing).
Solution treatment shall consist of heating the tubes uniformly to a temperature within the range given
for the steel grade concerned in Tables 6, 7 and 8 and cooling rapidly.
7.2.4 The types of delivery condition of the tubes are given in Table 1.
Unless option 2 is specified, the type of delivery condition is at the discretion of the manufacturer.
Option 2: The delivery condition is specified by the purchaser.
a
Table 1 — Delivery conditions
b
Type of delivery condition Surface condition
Symbol
HFD Hot finished heat treated, descaled Metallically clean
CFD Cold finished heat treated, descaled Metallically clean
CFA Cold finished bright annealed Metallically bright
CFG Cold finished heat treated, ground Metallically bright-ground, the type
and degree of roughness shall be
agreed at the time of enquiry and
c
order
CFP Cold finished heat treated, polished Metallically bright-polished, the type
and degree of roughness shall be
agreed at the time of enquiry and
c
order
a
Combinations of the different conditions may be agreed at the time of enquiry and order.
b
The symbols are abbreviations for type of condition. Example: CFD = Cold Finished Descaled.
c
The enquiry and the order shall indicate whether the roughness requirement applies on the internal or
external tube surface, or internal and external.
8 Requirements
8.1 General
When supplied in a delivery condition indicated in 7.2.4 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 requirements specified in EN 10021:2006 shall apply.
8.2 Chemical composition
8.2.1 Cast analysis
The cast analysis reported by the steel manufacturer shall apply and conform to the requirements of
Table 2 or Table 3 for austenitic steels and of Table 4 for austenitic-ferritic steels.
Option 3: (see Table 2).
When welding tubes produced in accordance with this part of EN 10216, account should be taken to 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 4: Product analysis for the tubes shall be supplied.
Table 5 specifies the permissible deviation of the product analysis from the specified limits on cast
analysis given in Tables 2, 3 and 4.
a
Table 2 — Chemical composition (cast analysis) of austenitic corrosion resisting steels, in % by mass
Steel grade
C P S
Si Mn N Cr Cu Mo Nb Ni Ti Others
Steel
max max max
Steel name
number
b c
X2CrNi18-9 1.4307 0,030 ≤ 1,00 ≤ 2,00 0,040 ≤ 0,10 17,5 to 19,5 _ _ _ _ _
0,015 8,0 to 10,0
b d
X2CrNi19-11 1.4306 0,030 ≤ 1,00 ≤ 2,00 0,040 ≤ 0,10 18,0 to 20,0 _ _ _ _ _
0,015 10,0 to 12,0
X2CrNiN18-10 1.4311 0,030 ≤ 1,00 ≤ 2,00 0,040 0,015 0,12 to 17,0 to 19,5 _ _ _ 8,5 to 11,5 _ _
0,22
b
X5CrNi18-10 1.4301 0,07 ≤ 1,00 ≤ 2,00 0,040 ≤ 0,10 17,0 to 19,5 _ _ _ 8,0 to 10,5 _ _
0,015
d
X6CrNiTi18-10 1.4541 0,08 ≤ 1,00 ≤ 2,00 0,040 0,015 _ 17,0 to 19,0 _ _ _ 5xC to 0,70 _
9,0 to 12,0
d
X6CrNiNb18-10 1.4550 0,08 ≤ 1,00 ≤ 2,00 0,040 0,015 _ 17,0 to 19,0 _ _ 10xC to 1,00 _ _
9,0 to 12,0
X1CrNi25-21 1.4335 0,020 ≤ 0,25 ≤ 2,00 0,025 0,010 ≤ 0,10 24,0 to 26,0 _ ≤ 0,20 _ 20,0 to 22,0 _ _
b e
X2CrNiMo17-12-2 1.4404 0,030 ≤ 1,00 ≤ 2,00 0,040 ≤ 0,10 16,5 to 18,5 _ 2,0 to 2,5 _ _ _
0,015 10,0 to 13,0
b
X5CrNiMo17-12-2 1.4401 0,07 ≤ 1,00 ≤ 2,00 0,040 ≤ 0,10 16,5 to 18,5 _ 2,0 to 2,5 _ 10,0 to 13,0 _ _
0,015
X1CrNiMoN25-22-2 1.4466 0,020 ≤ 0,70 ≤ 2,00 0,025 0,010 0,10 to 24,0 to 26,0 _ 2,00 to 2,50 _ 21,0 to 23,0 _ _
0,16
b c
X6CrNiMoTi17-12-2 1.4571 0,08 ≤ 1,00 ≤ 2,00 0,040 _ 16,5 to 18,5 _ 2,00 to 2,50 _ 5xC to 0,70 _
0,015 10,5 to 13,5
X6CrNiMoNb17-12-2 1.4580 0,08 ≤ 1,00 ≤ 2,00 0,040 0,015 _ 16,5 to 18,5 _ 2,00 to 2,50 10xC to 1,00 10,5 to 13,5 _ _
d
X2CrNiMoN17-13-3 1.4429 0,030 ≤ 1,00 ≤ 2,00 0,040 0,015 0,12 to 16,5 to 18,5 _ 2,50 to 3,0 _ _ _
11,0 to 14,0
0,22
b d
X3CrNiMo17-13-3 1.4436 0,05 ≤ 1,00 ≤ 2,00 0,040 ≤ 0,10 16,5 to 18,5 _ 2,50 to 3,0 _ _ _
0,015 10,5 to 13,0
b
X2CrNiMo18-14-3 1.4435 0,030 ≤ 1,00 ≤ 2,00 0,040 ≤ 0,10 17,0 to 19,0 _ 2,50 to 3,0 _ 12,5 to 15,0 _ _
0,015
X2CrNiMoN17-13-5 1.4439 0,030 ≤ 1,00 ≤ 2,00 0,040 0,015 0,12 to 16,5 to 18,5 _ 4,0 to 5,0 _ 12,50to 14,5 _ _
0,22
X1NiCrMoCu31-27-4 1.4563 0,020 ≤ 0,70 ≤ 2,00 0,030 0,010 ≤ 0,10 26,0 to 28,0 0,70 to 3,0 to 4,0 _ 30,0 to 32,0 _ _
1,50
Steel grade
C P S
Si Mn N Cr Cu Mo Nb Ni Ti Others
Steel
max max max
Steel name
number
X1NiCrMoCu25-20-5 1.4539 0,020 ≤ 0,70 ≤ 2,00 0,030 0,010 ≤ 0,15 19,0 to 21,0 1,20 to 4,0 to 5,0 _ 24,0 to 26,0 _ _
2,00
X1CrNiMoCuN20-18-7 1.4547 0,020 ≤ 0,70 ≤ 1,00 0,030 0,010 0,18 to 19,5 to 20,5 0,50 to 6,0 to 7,0 _ 17,5 to 18,5 _ _
0,25 1,00
X1NiCrMoCuN25-20-7 1.4529 0,020 ≤ 0,50 ≤ 1,00 0,030 0,010 0,15 to 19,0 to 21,0 0,50 to 6,0 to 7,0 _ 24,0 to 26,0 _ _
0,25 1,50
X2NiCrAlTi32-20 1.4558 0,030 ≤ 0,70 ≤ 1,00 0,020 0,015 _ 20,0 to 23,0 _ _ _ 32,0 to 35,0 8X(C+N) to Al: 0,15
0,60 to 0,45
a
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to
avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
For products to be machined a controlled sulphur content of 0,015 % to 0,030 % is permitted by agreement provided the resistance to corrosion is still satisfied for the intended purpose.
Option 3: A sulphur content of 0,015 % to 0,030 % is specified.
c
Where for special reasons, e.g. hot workability it is necessary to minimize the deltaferrite content, or with the aim of low permeability, the maximum nickel content may be increased by 0,50 %.
d
Where for special reasons, e.g. hot workability it is necessary to minimize the deltaferrite content, or with the aim of low permeability, the maximum nickel content may be increased by 1,00 %.
e
Where for special reasons, e.g. hot workability it is necessary to minimize the deltaferrite content, or with the aim of low permeability, the maximum nickel content may be increased by 1,50 %.
a
Table 3 — Chemical composition (cast analysis) of austenitic creep resisting steels, in % by mass
Steel grade C Si Mn P S N Cr Cu Mo Nb Ni Ti Others
Steel name Steel number max max
X6CrNi18-10 1.4948 0,04 to ≤ 1,00 ≤ 2,00 0,035 0,015 ≤ 0,10 17,0 to - - - 8,0 to - -
0,08 19,0 11,0
X7CrNiTi18-10 1.4940 0,04 to ≤ 1,00 ≤2,00 0,040 0,015 ≤ 0,10 17,0 to - - - 9,0 to 5x(C+N)
0,08 19,0 13,0 to 0,80
X7CrNiNb18-10 1.4912 0,04 to ≤ 1,00 ≤ 2,00 0,040 0,015 ≤ 0,10 17,0 to - - 10xC to 1,20 9,0 to
0,10 19,0 12,0
X6CrNiTiB18-10 1.4941 0,04 to ≤ 1,00 ≤ 2,00 0,035 0,015 - 17,0 to - - - 9,0 to 5xC to B: 0,001 5 to 0,005 0
0,08 19,0 12,0 0,80
X6CrNiMo17-13-2 1.4918 0,04 to ≤ 0,75 ≤ 2,00 0,035 0,015 ≤ 0,10 16,0 to - 2,00 to 12,0 to - -
0,08 18,0 2,50 14,0
b
1.4958(+RA) 0,03 to ≤ 0,70 ≤ 1,50 0,015 0,010 - 19,0 to ≤ 0,50 - ≤ 0,10 30,0 to 0,20 to Al: 0,20 to 0,50
X5NiCrAlTi31-20 (+RA)
0,08 22,0 32,5 0,50 Al+Ti: ≤ 0,70
Co: ≤ 0,5
Ni+Co = 30,0 to 32,5
X8NiCrAlTi32-21 1.4959 0,05 to ≤ 0,70 ≤ 1,50 0,015 0,010 - 19,0 to ≤ 0,50 - - 30,0 to 0,25 to Al: 0,20 to 0,65
0,10 22,0 34,0 0,65
X3CrNiMoBN17-13-3 1.4910 ≤ 0,04 ≤ 0, 75 ≤ 2,00 0,035 0,015 0,10 to 16,0 to - 2,00 to - 12,0 to - B: 0,001 5 to 0,005 0
0,18 18,0 3,0 14,0
X8CrNiNb16-13 1.4961 0,04 to 0,30 to ≤ 1,50 0,035 0,015 - 15,0 to - - 10xC to 1,20 12,0 to - -
0,10 0,60 17,0 14,0
X8CrNiMoVNb16-13 1.4988 0,04 to 0,30 to ≤ 1,50 0,035 0,015 0,06 to 15,5 to - 1,10 to 10xC to 1,20 12,5 to - V: 0,60 to 0,85
0,10 0,60 0,14 17,5 1,50 14,5
X8CrNiMoNb16-16 1.4981 0,04 to 0,30 to ≤ 1,50 0,035 0,015 - 15,5 to - 1,60 to 10xC to 1,20 15,5 to - -
c
0,10 0,60 17,5 2,00 17,5
X10CrNiMoMnNbVB15-10- 1.4982 0,06 to 0,20 to 5,50 to 0,035 0,015 - 14,0 to - 0,80 to 0,75 to 1,25 9,0 to - V: 0,15 to 0,40
1 0,15 1,00 7,00 16,0 1,20 11,0 B 0,003 to 0,009
a
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to
avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
b
Recrystallizing annealed condition.
c
Including Ta.
a
Table 4 — Chemical composition (cast analysis) of austenitic-ferritic steels, in % by mass
Steel grade
C P S
Si Mn N Cr Cu Mo Ni Others
max max max
Steel name Steel number
0,10 to 21,0 to
X2CrNiMoN22-5-3 1.4462 0,030 ≤ 1,00 ≤ 2,00 0,035 0,015 _ 2,50 to 3,5 4,5 to 6,5 _
0,22 23,0
1,40 to 1,20 to 0,05 to 18,0 to
X2CrNiMoSi18-5-3 1.4424 0,030 0,035 0,015 _ 2,50 to 3,0 4,5 to 5,2 _
2,00 2,00 0,10 19,0
0,05 to 22,0 to 0,10 to 0,10 to
X2CrNiN23-4 1.4362 0,030 ≤ 1,00 ≤ 2,00 0,035 0,015 3,5 to 5,5 _
0,20 24,0 0,60 0,60
0,20 to 24,0 to
X2CrNiMoN25-7-4 1.4410 0,030 ≤ 1,00 ≤ 2,00 0,035 0,015 _ 3,00 to 4,5 6,0 to 8,0 _
0,35 26,0
0,15 to 24,0 to 1,00 to
X2CrNiMoCuN25-6-3 1.4507 0,030 ≤ 0,70 ≤ 2,00 0,035 0,015 2,70 to 4,0 5,5 to 7,5 _
0,30 26,0 2,50
0,20 to 24,0 to 0,50 to W: 0,50 to
X2CrNiMoCuWN25-7-4 1.4501 0,030 ≤ 1,00 ≤ 1,00 0,035 0,015 3,00 to 4,0 6,0 to 8,0
0,30 26,0 1,00 1,00
a
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to
avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
Table 5 — Permissible deviations of the product analysis from specified limits on cast analysis
given in Tables 2, 3 and 4
Element Limiting value for the cast analysis Permissible deviation of the product
a
according to Tables 2, 3 and 4
analysis
% by mass
% by mass
Carbon ≤ 0,030 + 0,005
> 0,030 to ≤ 0,15 ± 0,01
Silicon ≤ 2,00 ± 0,05
≤ 1,00 + 0,03
Manganese > 1,00 to ≤ 2,00 ± 0,04
> 2,00 to ≤ 7,00 ± 0,10
Phosphorus ≤ 0,030 + 0,003
> 0,030 to ≤ 0,040 + 0,005
Sulphur ≤ 0,015 + 0,003
> 0,015 to ≤ 0,030 +0,005
Nitrogen ≤ 0,35 ± 0,01
Aluminium ≤ 0,65 ± 0,10
Boron ≥ 0,001 5 to ≤ 0,009 0 ± 0,000 3
Chromium > 14,0 to ≤ 20,0 ± 0,20
>20,0 to ≤ 28,0 ± 0,25
Cobalt ≤ 0,50 + 0,10
Copper ≤ 1,00 ± 0,07
> 1,00 to ≤ 2,50 ± 0,10
Molybdenum ≤ 0,60 ± 0,03
> 0,60 to ≤ 1,75 ± 0,05
> 1,75 to ≤ 7,0 ± 0,10
Niobium ≤ 1,25 ± 0,05
Nickel > 3,5 to ≤ 5,0 ± 0,07
> 5,0 to ≤ 10,0 ± 0,10
> 10,0 to ≤ 20,0 ± 0,15
>20,0 to ≤35,0 ± 0,20
Titanium ≤ 0,80 ± 0,05
Vanadium ≤ 0,85 ± 0,03
Tungsten ≤ 1,00 ± 0,05
a
If several product analyses are carried out on one cast, and the contents of an individual element determined lie
outside the permissible range of the chemical composition specified for the cast analysis, then it is only allowed to
exceed the permissible maximum value or to fall short of the permissible minimum value, but not both for one
cast.
8.3 Mechanical properties
8.3.1 At room temperature
The mechanical properties of the tubes at room temperature shall conform to the relevant
requirements in Tables 6, 7 and 8 and in Clause 11 irrespective of whether they are verified or not.
If heat treatments different from, or are additional to, the reference heat treatment, they are to be
carried out after the delivery of the tubes. It may be requested, at the time of enquiry and order,
additional mechanical tests on samples that have been given heat treatments different from or
additional to, those given in Tables 6, 7 and 8. The heat treatment of the samples and the mechanical
properties to be obtained from tests on them shall be agreed between the purchaser and the
manufacturer at the time of enquiry and order.
Option 5: Additional verification of mechanical properties on samples which have undergone a different or
additional heat treatment shall be carried out.
Option 6: Verification of impact energy shall be carried out at room temperature (see Tables 6, 7 and 8).
Option 7: (see Table 6, footnote a).
Option 8: (see Table 7, footnote a).
8.3.2 At elevated temperatu
...
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