EN 10297-2:2005

SLOVENSKI STANDARD
01-marec-2006
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Seamless circular steel tubes for mechanical and general engineering purposes -
Technical delivery conditions - Part 2: Stainless steel
Nahtlose kreisförmige Stahlrohre für den Maschinenbau und allgemeine technische
Anwendungen - Technische Lieferbedingungen - Teil 2: Rohre aus nichtrostenden
Stählen
Tubes sans soudure de section circulaire en acier pour utilisation en mécanique
générale et en construction mécanique - Conditions techniques de livraison - Partie 2:
Tubes en acier inoxydable
Ta slovenski standard je istoveten z: EN 10297-2:2005
ICS:
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.

EUROPEAN STANDARD
EN 10297-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2005
ICS 77.140.75
English Version
Seamless steel tubes for mechanical and general engineering
purposes - Technical delivery conditions - Part 2: Stainless steel
Tubes sans soudure en acier pour utilisation en mécanique Nahtlose kreisförmige Stahlrohre für den Maschinenbau
générale et en construction mécanique - Conditions und allgemeine technische Anwendungen - Technische
techniques de livraison - Partie 2: Tubes en acier Lieferbedingungen - Teil 2: Nichtrostender Stähle
inoxydable
This European Standard was approved by CEN on 25 March 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10297-2:2005: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction.4
1 Scope .5
2 Normative references .5
3 Terms and definitions.6
4 Symbols.6
5 Classification and designation .6
6 Information to be supplied by the purchaser.6
7 Manufacturing process.7
8 Requirements .8
9 Inspection and testing .20
10 Sampling.22
11 Test methods.23
12 Marking .25
13 Handling and packaging.25
Annex A (normative) Process route and surface conditions .26
Annex B (informative) Guideline data on heat treatment during fabrication and hot working as part of
further processing .27
Annex C (normative) Formulae for calculation of nominal sectional properties .32
Bibliography.33

Foreword
This document (EN 10297-2:2005) has been prepared by Technical Committee ECISS/TC 29 “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 2006, and conflicting national standards shall be withdrawn at the latest by
June 2006.
Another part of EN 10297 is:
Part 1: Non-alloy and alloy steel tubes
Another European Standard series, covering seamless steel tubes for mechanical and general engineering
purposes, currently being prepared is:
EN 10296-2 Welded circular steel tubes for mechanical and general engineering purposes — Technical delivery
conditions – Part 2: Stainless steel.
Other series of European Standards being prepared in this area are prEN 10294 - hollow bars for machining and
EN 10305 - steel tubes for precision applications.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Introduction
The European Committee for Standardisation (CEN) draws attention to the fact that it is claimed that compliance
with this document may involve the use of patents applied to steel grades 1.4362, 1.4410, 1.4477 and 1.4854, the
compositions of which are given in Tables 3 and 4.
CEN takes no position concerning the evidence, validity and scope of these patent rights.
The holders of these patent rights have assured CEN that they are willing to negotiate licences, under reasonable
and non-discriminatory terms and conditions, with applicants throughout the world. In this respect, the statements
of the holders of these patent rights are registered with CEN. Information may be obtained from:

Grades 1.4362, 1.4410 and 1.4477
Sandvik AB
SE-811 81 SANDVIKEN
Sweden
Grade 1.4854
Outokumpu OYJ
Intelectual Property Management
P.O Box 27
FI – 02201 ESPOO
Finland
Attention is drawn to the possibility that some of the elements within this document may be the subject of patent
rights other than those indicated above. CEN shall not be responsible for identifying any or all such patent rights.
1 Scope
This European Standard specifies the technical delivery conditions for seamless tubes, of circular cross section,
made from stainless steels, for mechanical and general engineering purposes.
2 Normative references
The following referenced documents are indispensable for the application 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 10002-1, Metallic materials – Tensile testing – Part 1: Method of test (at ambient temperature)
EN 10020:2000, Definition and classification of grades of steel
EN 10021:1993, General technical delivery requirements for steel and iron products
EN 10027-1, Designation systems for steel – Part 1: Steel names, principal symbols
EN 10027-2, Designation systems for steel – Part 2: Numerical system
EN 10052:1993, Vocabulary of heat treatment terms for ferrous products
EN 10088-1, Stainless steels – Part 1: List of stainless steels
EN 10168, Steel products – Inspection documents – List of information and description
EN 10204, Metallic products – Types of inspection documents
EN 10246-2, Non-destructive testing of steel tubes – Part 2: Automatic eddy current testing of seamless and
welded (except submerged arc-welded) austenitic and austenitic-ferritic steel tubes for verification of hydraulic leak-
tightness
EN 10246-3, Non-destructive testing of steel tubes – Part 3: Automatic eddy current testing of seamless and
welded (except submerged arc-welded) steel tubes for the detection of imperfections
EN 10246-5, Non-destructive testing of steel tubes – Part 5: Automatic full peripheral magnetic transducer/flux
leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection
of longitudinal imperfections
EN 10246-7, Non-destructive testing of steel tubes – Part 7: Automatic full peripheral ultrasonic testing of seamless
and welded (except submerged arc-welded) steel tubes for the detection of longitudinal imperfections
EN 10256, Non-destructive testing of steel tubes – Qualification and competence of level 1 and 2 non-destructive
testing personnel
EN 10266:2003, Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in
product standards
CR 10260:1998, Designation system for steel – Additional symbols
EN ISO 377, Steel and steel products – Location and preparation of samples and test pieces for mechanical testing
(ISO 377:1997)
EN ISO 1127, Stainless steel tubes – Dimensions, tolerances and conventional masses per unit length
(ISO 1127:1992)
EN ISO 2566-2, Steel – Conversion of elongation values – Part 2: Austenitic steels (ISO 2566-2:1984).
EN ISO 3651-2, 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)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 10020:2000, EN 10021:1993,
EN 10052:1993 and EN 10266:2003 together with the following apply.
employer
organisation for which the person works on a regular basis.
NOTE The employer may be either the tube manufacturer or a third party organisation providing non-destructive testing
(NDT) services.
4 Symbols
For the purposes of this European Standard, the symbols given in EN 10266:2003 and CR 10260:1998 apply.
Not applicable.
5 Classification and designation
5.1 Classification
In accordance with the classification system in EN 10020, the steel grades listed in Tables 1, 2, 3 and 4 are
stainless steels.
5.2 Designation
For tubes covered by this document the steel designation consists of:
 number of this document (EN 10297-2);
plus either:
 steel name in accordance with EN 10027-1 and CR 10260;
 or steel number allocated in accordance with EN 10027-2.
6 Information to be supplied by the purchaser
6.1 Mandatory information
The following information shall be supplied by the purchaser at the time of enquiry and order:
a) quantity (mass or total length or number);
b) term "tube";
c) dimensions (outside diameter D, wall thickness T) (see 8.7.1);
d) steel designation according to this document (see 5.2);
e) delivery condition, where necessary (see 7.2.2).
6.2 Options
A number of options are specified in this document and these are listed below with appropriate clause references.
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) process route and/or surface condition (see 7.2.1);
2) controlled sulphur content (see Tables 1, 2, and 3);
3) non-destructive testing (see 8.4.2);
4) leak tightness test (see 8.4.2);
5) straightness (see 8.5);
6) exact lengths (see 8.7.2);
7) outside diameter and thickness tolerances (see 8.7.3.1);
8) specific inspection and testing (see 9.1);
9) test report 2.2 (see 9.2.1);
10) inspection certificate, 3.2 (see 9.2.1);
11) leak tightness test method (see 11.2.1).
6.3 Example of an order
Twenty five tonnes of seamless steel tubes with a specified outside diameter of 60,3 mm, a specified wall thickness
of 3,6 mm, in accordance with EN 10297-2, made from steel grade 1.4016, and with a test report 2.2 (option 9) in
accordance with EN 10204.
25 t - tube - 60,3 x 3,6 - EN 10297-2 – 1.4016 - Option 9
7 Manufacturing process
7.1 Steelmaking process
The steelmaking process is at the discretion of the manufacturer.
7.2 Tube manufacturing and delivery conditions
7.2.1 Tubes shall be manufactured by a seamless process, and may be hot finished or cold finished. The terms
“hot finished “ and “ cold finished “ ap
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