prEN 10368

SLOVENSKI STANDARD
01-februar-2016
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Hot finished structural steel hollow sections - Part 1: General
Warmgefertigte Hohlprofile für den Stahlbau - Teil 1: Allgemeines
Profils creux de construction finis à chaud en aciers - Partie 1 : Généralités
Ta slovenski standard je istoveten z: prEN 10210-1
ICS:
77.140.45 Nelegirana jekla Non-alloyed steels
77.140.70 Jekleni profili Steel profiles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 10210-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2016
ICS 77.140.75 Will supersede EN 10210-1:2006
English Version
Hot finished structural steel hollow sections - Part 1:
General
Profils creux de construction finis à chaud en aciers - Warmgefertigte Hohlprofile für den Stahlbau - Teil 1:
Partie 1 : Généralités Allgemeines
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
ECISS/TC 103.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10210-1:2016 E
worldwide for CEN national Members.

prEN 10210-1:2016 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms, definitions and symbols . 5
3.1 Terms and definitions . 5
3.2 Symbols . 6
4 Product characteristics . 6
4.1 Chemical composition (durability) . 6
4.2 Mechanical properties (yield strength, tensile strength, elongation and impact
strength) . 6
4.3 Weldability . 7
4.4 Tolerances on dimensions and shape . 7
4.5 Dangerous substances . 7
5 Testing, assessment and sampling methods . 7
5.1 Chemical composition (durability) . 7
5.2 Mechanical properties . 8
5.3 Weldability . 10
5.4 Tolerances on dimensions and shape . 10
6 Assessment and verification of constancy of performance (AVCP) . 10
6.1 General . 10
6.2 Assessment of the performance of the construction product . 11
6.3 Factory production control . 12
7 Classification and designation . 17
7.1 Classification of grades and qualities . 17
7.2 Designation. 17
8 Marking . 17
Annex A (normative) Location of samples and test pieces . 18
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 19

prEN 10210-1:2016 (E)
European foreword
This document (prEN 10210-1:2016) has been prepared by Technical Committee ECISS/TC 103
“Structural steels other than reinforcements”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 10210-1:2006.
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 Regulation 305/2011.
For relationship with EU Regulation 305/2011, see informative Annex ZA, which is an integral part of
this document.
This standard consists of the following parts under the general title 'Hot finished structural steel hollow
sections”:
— Part 1: General
— Part 2: Technical delivery conditions
— Part 3: Tolerances, dimensions and sectional properties
It forms part of a series of standards on hollow sections together with prEN 10219-1 to prEN 10219-3.
prEN 10210-1:2016 (E)
1 Scope
This part of prEN 10210 specifies the product characteristics, test methods and performance criteria for
hot-finished seamless, electric welded and submerged arc welded steel structural hollow sections of
circular, square, rectangular or elliptical forms.
It applies to hollow sections formed hot, with or without subsequent heat treatment, or formed cold
with subsequent heat treatment above 580 °C to obtain equivalent mechanical conditions to those
obtained in the hot formed product.
Requirements for the technical delivery conditions are specified in prEN 10210-2 and for tolerances,
dimensions and sectional properties in prEN 10210-3.
NOTE 1 prEN 10210-1 covers provision of the Construction Products Regulations (CPR) to fulfil European law
for construction products. The technical delivery conditions are described within prEN 10210-2 in combination
with Clauses 2, 3, 4, 5, 7 and 8 of prEN 10210-1.
NOTE 2 Seamless and welded hollow sections for offshore structures are covered in EN 10225.
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 1011-1, Welding - Recommendations for welding of metallic materials - Part 1: General guidance for
arc welding
EN 1011-2, Welding - Recommendations for welding of metallic materials - Part 2: Arc welding of ferritic
steels
EN 10020:2000, Definition and classification of grades of steel
EN 10021:2006, General technical delivery conditions for steel products
EN 10027-1, Designation systems for steels - Part 1: Steel names
EN 10027-2, Designation systems for steels - Part 2: Numerical system
EN 10052:1993, Vocabulary of heat treatment terms for ferrous products
prEN 10210-2:2016, Hot finished structural steel hollow sections - Part 2: Technical delivery condition
prEN 10210-3:2016, Hot finished structural steel hollow sections - Part 3: Tolerances, dimensions and
sectional properties
EN 10266:2003, Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for
use in product standards
EN ISO 148-1, Metallic materials - Charpy pendulum impact test - Part 1: Test method (ISO 148-1)
EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical
testing (ISO 377)
prEN 10210-1:2016 (E)
EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical
composition (ISO 14284)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply in addition to, or where
different, from those in EN 10020:2000, EN 10021:2006, EN 10052:1993 and EN 10266:2003.
3.1.1
hot finished
hollow sections formed hot, with or without subsequent heat treatment, or formed cold with
subsequent heat treatment above 580 °C to obtain equivalent metallurgical conditions to those
obtained in the hot formed product
3.1.2
cold forming
process where the forming to final shape of the welded hollow section is carried out at ambient
temperature
Note 1 to entry: Circular hollow sections produced from normalized strip with a normalized weld seam and
with a cold forming ratio of D/T ≥ 20 may be classified as hot-finished hollow sections.
3.1.3
normalizing rolling
rolling process in which the final deformation is carried out in a certain temperature range leading to a
material condition equivalent to that obtained after normalizing so that the specified values of the
mechanical properties are retained even after subsequent normalizing
3.1.4
thermomechanical rolling
simultaneously performed forming process and heat treatment in which the final deformation from
round to rectangular/square/elliptical hollow sections is carried out in a certain temperature range
above 580 °C leading to a material condition with certain properties which cannot be achieved or
repeated by heat treatment alone
Note 1 to entry: Thermomechanical rolling leading to the delivery condition M can include processes with an
increasing cooling rate with or without tempering including self-tempering but excluding direct quenching and
quenching and tempering.
Note 2 to entry: In some publications the word TMCP (Thermomechanical Control Process) is also used.
3.1.5
steel with improved atmospheric corrosion resistance
steel in which a certain number of alloying elements has been added in order to increase its resistance
to atmospheric corrosion, by forming an auto-protective oxide layer on the base metal under the
influence of weather conditions
Note 1 to entry: Steel with improved atmospheric corrosion resistance is often called weathering steel.
prEN 10210-1:2016 (E)
Note 2 to entry: Additional information for the use of steel with improved atmospheric corrosion resistance is
given in prEN 10210-2:2016, Annex E.
3.1.6
quenching and tempering
process which consists of the following two steps:
— first quenching, where the steel is heated up above AC3 temperature and then rapidly cooled down
in liquids to create a process specific grain structure;
— afterwards tempering, during which the steel is heated up to a certain temperature to adjust the
desired properties and cooled down in air afterwards
3.1.7
fine grain steel
steels with fine grain structure with an equivalent index of ferritic grain size ≥ 6
Note 1 to entry: For the determination of grain sizes except for +QT steels, see EN ISO 643.
3.2 Symbols
For the purposes of this document, the symbols defined in EN 10266:2003 apply.
4 Product characteristics
4.1 Chemical composition (durability)
The chemical composition determined by the cast analysis and reported by the steel producer shall
comply to the requirements given in prEN 10210-2:2016, Tables A.1, B.1, C.1, D.1 or E.1.
4.2 Mechanical properties (yield strength, tensile s
...