SIST EN 10219-3:2020

SLOVENSKI STANDARD
SIST EN 10219-3:2020
01-november-2020
Hladno oblikovani varjeni votli konstrukcijski profili iz jekla - 3. del: Tehnični
dobavni pogoji za jekla z visoko trdnostjo in vodoodporna
Cold formed welded steel structural hollow sections - Part 3: Technical delivery
conditions for high strength and weather resistant steels
Kaltgeformte geschweißte Hohlprofile für den Stahlbau - Teil 3: Technische
Lieferbedingungen für Anwendungen im Maschinenbau
Profils creux de construction en acier, soudés et formés à froid - Partie 3 : Conditions
techniques de livraison pour des applications de construction mécanique
Ta slovenski standard je istoveten z: EN 10219-3:2020
ICS:
77.140.45 Nelegirana jekla Non-alloyed steels
77.140.70 Jekleni profili Steel profiles
SIST EN 10219-3:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 10219-3:2020

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SIST EN 10219-3:2020


EN 10219-3
EUROPEAN STANDARD

NORME EUROPÉENNE

September 2020
EUROPÄISCHE NORM
ICS 77.140.75
English Version

Cold formed welded steel structural hollow sections - Part
3: Technical delivery conditions for high strength and
weather resistant steels
Profils creux de construction en acier, soudés et formés Kaltgeformte geschweißte Hohlprofile für den Stahlbau
à froid - Partie 3 : Conditions techniques de livraison - Teil 3: Technische Lieferbedingungen für höher- und
des aciers à haute limite élastique et des aciers à wetterfeste Stähle
résistance améliorée à la corrosion atmosphérique
This European Standard was approved by CEN on 10 August 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10219-3:2020 E
worldwide for CEN national Members.

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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and symbols . 7
3.1 Terms and definitions . 7
3.2 Symbols . 8
4 Classification and designation . 8
4.1 Classification . 8
4.2 Designation. 8
5 Information to be obtained by the manufacturer . 10
5.1 Mandatory information . 10
5.2 Options . 10
5.3 Example of an order . 11
6 Manufacturing process . 11
6.1 General . 11
6.2 Steel manufacturing process . 11
6.3 Grain structure . 11
6.4 Condition of feedstock material . 11
6.5 Structural hollow section manufacturing process . 11
6.6 Delivery condition . 12
7 Requirements . 12
7.1 Chemical composition . 12
7.2 Mechanical properties . 15
7.3 Technological properties . 16
7.4 Product supply condition . 17
7.5 Non-destructive testing. 17
7.6 Tolerances and mass . 17
8 Inspection . 18
8.1 Types of inspection . 18
8.2 Types and contents of inspection documents . 18
8.3 Summary of inspection . 19
9 Frequency of testing and preparation of samples and test pieces . 20
9.1 Frequency of tests . 20
9.2 Selection and preparation of samples for product analysis . 21
9.3 Location and orientation of samples for mechanical tests . 21
9.4 Preparation of test pieces for mechanical tests . 22
10 Test methods . 22
10.1 Chemical analysis . 22
10.2 Mechanical tests . 22
10.3 Visual inspection and dimensional check . 23
10.4 Non-destructive testing. 23
10.5 Retests, sorting and reprocessing . 24
11 Marking . 24
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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
Annex A (informative) Structural hollow sections of non-alloy quality steels - Chemical
composition and mechanical properties . 26
Annex B (normative) Structural hollow sections of normalized/normalized rolled steels -
Chemical composition and mechanical properties . 27
Annex C (normative) Structural hollow sections of thermomechanical formed steels -
Chemical composition and mechanical properties . 29
Annex D (normative) Structural hollow sections of quenched and tempered steels —
Chemical composition and mechanical properties . 34
Annex E (normative) Structural hollow sections of steels with improved atmospheric
corrosion resistance — Chemical composition and mechanical properties . 39
Annex F (normative) Location of samples and test pieces . 41
Bibliography . 43

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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
European foreword
This document (EN 10219-3:2020) has been prepared by Technical Committee CEN/TC 459/SC 3
“Structural steels other than reinforcements”, the secretariat of which is held by DIN.
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 March 2021, and conflicting national standards shall
be withdrawn at the latest by March 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.
EN 10219 consists of the following parts:
— EN 10219-1, Cold formed welded steel structural hollow sections - Part 1: Technical delivery
conditions
— EN 10219-2, Cold formed welded steel structural hollow sections - Part 2: Tolerances, dimensions
and sectional properties
— EN 10219-3, Cold formed welded steel structural hollow sections - Part 3: Technical delivery
conditions for high strength and weather resistant steels.
It forms part of a series of standards on hollow sections together with EN 10210-1 to EN 10210-3.
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 10219-3:2020
EN 10219-3:2020 (E)
1 Scope
This document specifies the technical delivery conditions for high strength and weather resistant
electric welded and submerged arc welded cold formed steel structural hollow sections of circular,
square, rectangular or elliptical forms and formed cold without subsequent heat treatment other than
the heat treatment of the weld line.
NOTE 1 The requirements for tolerances, dimensions and sectional properties can be found in EN 10219-2.
NOTE 2 The attention of users is drawn to the fact that whilst cold formed grades in this document can have
equivalent mechanical properties to hot-finished grades in EN 10210-3, the sectional properties of square and
rectangular hollow sections in EN 10219-2 and EN 10210-2 are not equivalent.
NOTE 3 A range of steel grades is specified in this document and the user can select the grade most appropriate
to the intended use and service conditions. The grades and mechanical properties, but not the final supply
condition of cold formed hollow sections are generally comparable with those in EN 10025-3, EN 10025-4,
EN 10025-5, EN 10025-6, EN 10149-2 and EN 10149-3.
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 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, Definition and classification of grades of steel
EN 10021, 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 10160, Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection
method)
EN 10168, Steel products - Inspection documents - List of information and description
EN 10204, Metallic products - Types of inspection documents
EN 10219-1, Cold formed welded structural hollow sections of non-alloy and fine grain steels - Part 1:
Technical delivery conditions
EN 10219-2, Cold formed welded steel structural hollow sections - Part 2: Tolerances, dimensions and
sectional properties
CEN/TR 10261, Iron and steel - European standards for the determination of chemical composition
EN 10266, 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)
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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical
testing (ISO 377)
EN ISO 643, Steels - Micrographic determination of the apparent grain size (ISO 643)
EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels (ISO 2566-1)
EN ISO 4885, Ferrous materials - Heat treatments - Vocabulary (ISO 4885)
EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO
6892-1)
EN ISO 9606-1, Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1)
EN ISO 9712, Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712)
EN ISO 10893-2, Non-destructive testing of steel tubes - Part 2: Automated eddy current testing of
seamless and welded (except submerged arc-welded) steel tubes for the detection of imperfections (ISO
10893-2)
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 10893-6, Non-destructive testing of steel tubes - Part 6: Radiographic testing of the weld seam of
welded steel tubes for the detection of imperfections (ISO 10893-6)
EN ISO 10893-7, Non-destructive testing of steel tubes - Part 7: Digital radiographic testing of the weld
seam of welded steel tubes for the detection of imperfections (ISO 10893-7)
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 10893-9, Non-destructive testing of steel tubes - Part 9: Automated ultrasonic testing for the
detection of laminar imperfections in strip/plate used for the manufacture of welded steel tubes (ISO
10893-9)
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 10893-11, Non-destructive testing of steel tubes - Part 11: Automated ultrasonic testing of the
weld seam of welded steel tubes for the detection of longitudinal and/or transverse imperfections (ISO
10893-11)
EN ISO 14713-2:2009, Zinc coatings - Guidelines and recommendations for the protection against
corrosion of iron and steel in structures - Part 2: Hot dip galvanizing (ISO 14713-2:2009)
EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical
composition (ISO 14284)
EN ISO 15607, Specification and qualification of welding procedures for metallic materials - General rules
(ISO 15607)
EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure specification - Part 1: Arc welding (ISO 15609-1)
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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO
15614-1)
ISO 11484, Steel products - Employer's qualification system for non-destructive testing (NDT) personnel
SNT TC-1A, Personnel Qualification and Certification in Nondestructive Testing
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions given in EN 10020, EN 10021,
EN 10266 and EN ISO 4885 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
3.1.1
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.
3.1.2
normalizing rolling for feedstock material
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
3.1.3
thermomechanical rolling for feedstock material
rolling process in which the final deformation is carried out in a certain temperature range leading to a
material condition with certain properties which cannot be achieved or repeated by heat treatment
alone
Note 1 to entry: Thermomechanical rolling can include processes with an increased cooling rate with or without
tempering including self-tempering but excluding direct quenching as well as quenching and tempering.
Note 2 to entry: In some publications the word TMCP (Thermomechanical Control Process) is also used.
3.1.4
steel with improved atmospheric corrosion resistance for feedstock material
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.
Note 2 to entry: Additional information for the use of steel with improved atmospheric corrosion resistance is
given in Annex E.
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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
3.1.5
quenching and tempering for feedstock material
process which consists of the following two steps:
— first quenching, where the steel is heated up above the Ac temperature and then rapidly cooled
3
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
3.1.6
fine grain steel
steel with fine grain structure with an equivalent index of ferritic grain size ≥ 6
Note 1 to entry: For the determination of grain sizes, see EN ISO 643.
3.1.7
hot-dip zinc coating
application of a zinc coating by immersing the prepared strip or hollow section in a molten bath
containing a zinc content of at least 98%
3.2 Symbols
For the purposes of this document, the symbols defined in EN 10266 apply.
4 Classification and designation
4.1 Classification
4.1.1 Within the grades of steels given in Annex B, C and D seven qualities N, NL, M, ML, Q, QL and QL1
are specified. These differ in respect of the carbon, sulphur and phosphorus content, low temperature
impact properties, production process, heat treatment and grain size.
In accordance with the classification system in EN 10020, all steel grades are alloy special steels.
4.1.2 Within the grades of steels given in Annex E, three qualities J0, J2 and K2 are specified. These
differ in respect of specified impact requirements and limits on values of various elements.
In accordance with the classification system in EN 10020, all steel grades in Annex E are alloy special
steels.
4.2 Designation
4.2.1 For the products covered by this document, the steel names are allocated in accordance with
EN 10027-1; the steel numbers are allocated in accordance with EN 10027-2.
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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
4.2.2 The designation of steel hollow sections consists of:
a) the number of this document (EN 10219-3);
b) the capital letter S for structural steel;
c) the indication of the minimum specified yield strength for thicknesses ≤ 16 mm expressed in MPa;
d) further designations for either:
1) normalized/normalized rolled structural steels:
i) capital letter N to indicate normalized or normalized rolled with specified impact
properties at −20 °C (see 6.4);
ii) capital letters NL for qualities with specified impact properties at –50 °C; or
2) thermomechanical rolled structural steels:
i) capital letter M to indicate thermomechanical rolled with specified impact properties at
−20 °C (see 6.4);
ii) capital letters ML for qualities with specified impact properties at –50 °C; or
3) structural steels in the quenched and tempered condition:
i) capital letter Q to indicate the quenched and tempered condition with specified impact
properties at −20 °C (see 6.4);
ii) capital letters QL or QL1 for qualities with specified impact properties at –40 or –50 °C; or
4) steels with improved atmospheric corrosion resistance:
ii) the characters J0 for the qualities with specified impact properties at 0 °C;
ii) the characters J2 or K2 for the qualities with specified impact properties at −20 °C; and
iii) the letter W (weather) for improved atmospheric corrosion resistance; and;
e) the capital letter H to indicate hollow sections.
EXAMPLE 1 Hollow section made of structural steel (S) with a specified minimum yield strength for thickness
not greater than 16 mm of 460 MPa, quenched and tempered condition (Q), with a minimum impact energy value
of 30 J at −20 °C, hollow section (H):
EN 10219-3 — S460QH
or
EN 10219-3 — 1.8608
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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
EXAMPLE 2 Hollow section made of structural steel (S) with a specified minimum yield strength for thickness
not greater than 16 mm of 355 MPa, with a minimum impact energy value of 27 J at −20 °C (J2), weather resistant
steel (W), hollow section (H):
EN 10219-3 — S355J2WH
or
EN 10219-3 — 1.8645
5 Information to be obtained by the manufacturer
5.1 Mandatory information
The following information shall be contained in the order document at the time of enquiry and order:
a) the quantity (mass or total length);
b) details of the product form:
1) CFCHS = cold formed circular hollow section;
2) CFRHS = cold formed square or rectangular hollow section;
3) CFEHS = cold formed elliptical hollow section;
c) the name of the standard for dimensions and tolerances (EN 10219-2);
d) the dimensions and the type of length, length range or length (see EN 10219-2);
e) the steel designation (see 4.2).
5.2 Options
A number of options are specified in EN 10219-2 and this document. 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 hollow sections shall be supplied in
accordance with the basic specification.
3.1 Internal weld bead trimmed (see 6.5.2);
3.2 Other surface condition than as rolled (see 6.6);
3.3 Product analysis (see 7.1.1);
3.4 Empty;
3.5 Tensile test in corner region (see 7.2.1);
3.6 Impact test in corner region (see 7.2.2);
3.7 Verification of impact properties for quality J0 (see 7.2.3);
3.8 The product shall have a chemical composition suitable for hot-dip-zinc coating (see 7.3.2);
3.9 Weld repairs to the body of structural steel hollow sections are permitted (see 7.4.4);
3.10 Full peripheral NDT (non-destructive testing) of the circular tube for imperfections – not
possible for elliptical, rectangular, square and SAW (submerged arc welded) hollow sections (see
7.5);
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SIST EN 10219-3:2020
EN 10219-3:2020 (E)
3.11 Ultrasonic testing for laminar imperfections (see 7.5);
3.12 Inspection certificate 3.1 for steel grade S355J0WH of Annex E instead of a test report 2.2 (see
8.1);
3.13 Inspection certificate 3.2.
5.3 Example of an order
10 t cold formed welded square hollow sections in accordance with EN 10219-2 with specified outside
dimensions 100 mm × 100 mm and wall thickness of 8 mm of 12 m approximate lengths, grade S460QH
according to this document and chemical composition for hot-dip zinc coating (Option 3.8) and supplied
with inspection certificate 3.1:
EXAMPLE 10 t – CFRHS – EN 10219-2 — 100 × 100 × 8 – approximate length 12 m
EN 10219-3 — S460QH – Option 3.8
6 Manufacturing process
6.1 General
Structural welded cold formed hollow sections of normalized/normalized rolled, thermomechanical
rolled and quenched and tempered steels shall conform to Annexes B to D and steels with improved
atmospheric corrosion resistance shall conform to the requirements of Annex E.
In addition, the general technical delivery requirements specified in EN 10021 shall apply.
6.2 Steel manufacturing process
6.2.1 The steel manufacturing process shall be at the discretion of the hollow section manufacturer
with the exception that the open hearth (Siemens-Martin) process shall not be employed.
6.2.2 The method of deoxidation shall be as specified in Tables B.1, C.1, D.1 and E.1.
6.3 Grain structure
The steel grades given in Annexes B to D shall have a ferritic grain size equal to or finer than 6 when
measured in accordance with EN ISO 643 (see 7.2.4).
6.4 Condition of feedstock material
According to the designation given in the order the following delivery conditions apply for the feedstock
material used for the manufacture of cold formed hollow sections:
— normalized/normalized rolled for steels of qualities N and NL according to Annex B;
— thermomechanical rolled for steels of quality M and ML according to Annex C;
— quenched and tempered for steels of qualities Q, QL
...

SLOVENSKI STANDARD
oSIST prEN 10219-3:2019
01-oktober-2019
Hladno oblikovani varjeni votli konstrukcijski profili iz jekla - 3. del: Tehnični
dobavni pogoji za mehansko tehnično uporabo
Cold formed welded steel structural hollow sections - Part 3: Technical delivery
conditions for mechanical engineering purposes
Kaltgeformte geschweißte Hohlprofile für den Stahlbau - Teil 3: Technische
Lieferbedingungen für Anwendungen im Maschinenbau
Profils creux de construction en acier, soudés et formés à froid - Partie 3 : Conditions
techniques de livraison pour des applications de construction mécanique
Ta slovenski standard je istoveten z: prEN 10219-3
ICS:
77.140.45 Nelegirana jekla Non-alloyed steels
77.140.70 Jekleni profili Steel profiles
oSIST prEN 10219-3:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 10219-3:2019

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oSIST prEN 10219-3:2019


DRAFT
EUROPEAN STANDARD
prEN 10219-3
NORME EUROPÉENNE

EUROPÄISCHE NORM

July 2019
ICS 77.140.75
English Version

Cold formed welded steel structural hollow sections - Part
3: Technical delivery conditions for mechanical
engineering purposes
Profils creux de construction en acier, soudés et formés Kaltgeformte geschweißte Hohlprofile für den Stahlbau
à froid - Partie 3 : Conditions techniques de livraison - Teil 3: Technische Lieferbedingungen für
pour des applications de construction mécanique Anwendungen im Maschinenbau
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 459/SC 3.

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, 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.

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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10219-3:2019 E
worldwide for CEN national Members.

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oSIST prEN 10219-3:2019
prEN 10219-3:2019 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and symbols . 7
3.1 Terms and definitions . 7
3.2 Symbols . 8
4 Classification and designation . 8
4.1 Classification . 8
4.2 Designation. 9
5 Information to be obtained by the manufacturer . 10
5.1 Mandatory information . 10
5.2 Options . 11
5.3 Example of an order . 11
6 Manufacturing process . 11
6.1 General . 11
6.2 Steel manufacturing process . 12
6.3 Grain structure . 12
6.4 Condition of feedstock material . 12
6.5 Structural hollow section manufacturing process . 12
6.6 Delivery condition . 13
7 Requirements . 13
7.1 Chemical composition . 13
7.2 Mechanical properties . 15
7.3 Technological properties . 16
7.4 Product supply condition . 17
7.5 Non-destructive testing. 17
7.6 Tolerances and mass . 17
8 Inspection . 18
8.1 Types of inspection . 18
8.2 Types and contents of inspection documents . 18
8.3 Summary of inspection . 18
9 Frequency of testing and preparation of samples and test pieces . 21
9.1 Frequency of tests . 21
9.2 Selection and preparation of samples for product analysis . 21
9.3 Location and orientation of samples for mechanical tests . 21
9.4 Preparation of test pieces for mechanical tests . 22
10 Test methods . 23
10.1 Chemical analysis . 23
10.2 Mechanical tests . 23
10.3 Visual inspection and dimensional check . 24
10.4 Non-destructive testing. 24
10.5 Retests, sorting and reprocessing . 25
11 Marking . 25
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oSIST prEN 10219-3:2019
prEN 10219-3:2019 (E)
Annex A (normative) Structural hollow sections of non-alloy quality steels - Chemical
composition and mechanical properties . 26
Annex B (normative) Structural hollow sections of normalized/normalized rolled steels -
Chemical composition and mechanical properties . 28
Annex C (normative) Structural hollow sections of thermomechanical formed steels -
Chemical composition and mechanical properties . 31
Annex D . 36
Annex E (normative) Structural hollow sections of quenched and tempered steels —
Chemical composition and mechanical properties . 36
Annex F (normative) Structural hollow sections of steels with improved atmospheric
corrosion resistance — Chemical composition and mechanical properties . 41
Annex G (normative) Location of samples and test pieces . 43
Bibliography . 45

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oSIST prEN 10219-3:2019
prEN 10219-3:2019 (E)
European foreword
This document (prEN 10219-3:2019) has been prepared by Technical Committee CEN/TC 459 “ECISS -
1
European Committee for Iron and Steel Standardization ”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This standard consists of the following parts:
— EN 10219-1, Cold formed welded steel structural hollow sections - Part 1: Technical delivery
conditions
— EN 10219-2, Cold formed welded steel structural hollow sections - Part 2: Tolerances, dimensions
and sectional properties
— EN 10219-3, Cold formed welded steel structural hollow sections - Part 3: Technical delivery
conditions for mechanical engineering purposes
It forms part of a series of standards on hollow sections together with EN 10210-1 to −3.

1
Through its subcommittee SC 3 “Structural steels other than reinforcements” (secretariat: DIN).
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1 Scope
This part of this standard specifies the technical delivery conditions for electric welded and submerged
arc welded cold formed structural steel hollow sections for mechanical engineering purposes of
circular, square, rectangular or elliptical forms and applies to structural hollow sections formed cold
without subsequent heat treatment other than the heat treatment of the weld line.
NOTE 1 The requirements for tolerances, dimensions and sectional properties can be found in EN 10219-2.
NOTE 2 The attention of users is drawn to the fact that whilst cold formed grades in EN 10219-3 can have
equivalent mechanical properties to hot-finished grades in EN 10210-3 the sectional properties of square and
rectangular hollow sections in EN 10219-2 and EN 10210-2 are not equivalent.
NOTE 3 A range of steel grades is specified in this document and the user can select the grade most appropriate
to the intended use and service conditions. The grades and mechanical properties, but not the final supply
condition of cold formed hollow sections are generally comparable with those in EN 10025-2, EN 10025-3,
EN 10025-4, EN 10025-5, EN 10025-6, EN 10149-2 and EN 10149-3.
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 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, Definition and classification of grades of steel
EN 10021, 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 10160, Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection
method)
EN 10168, Steel products - Inspection documents - List of information and description
EN 10204, Metallic products - Types of inspection documents
prEN 10219-2:—, Cold formed welded steel structural hollow sections - Part 2: Tolerances, dimensions
and sectional properties
CEN/TR 10261, Iron and steel - European standards for the determination of chemical composition
EN 10266, 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)
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EN ISO 643, Steels - Micrographic determination of the apparent grain size (ISO 643:2012)
EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test
methods (ISO 1461)
EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels
(ISO 2566-1:1984)
EN ISO 4885, Ferrous materials - Heat treatments - Vocabulary (ISO 4885:2018)
EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 9606-1, Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1 including Cor
1 and Cor 2)
EN ISO 9712, Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712)
EN ISO 10893-2, Non-destructive testing of steel tubes - Part 2: Automated eddy current testing of
seamless and welded (except submerged arc-welded) steel tubes for the detection of imperfections
(ISO 10893-2)
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 10893-6, Non-destructive testing of steel tubes - Part 6: Radiographic testing of the weld seam of
welded steel tubes for the detection of imperfections (ISO 10893-6)
EN ISO 10893-7, Non-destructive testing of steel tubes - Part 7: Digital radiographic testing of the weld
seam of welded steel tubes for the detection of imperfections (ISO 10893-7)
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 10893-9, Non-destructive testing of steel tubes - Part 9: Automated ultrasonic testing for the
detection of laminar imperfections in strip/plate used for the manufacture of welded steel tubes
(ISO 10893-9)
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 10893-11, Non-destructive testing of steel tubes - Part 11: Automated ultrasonic testing of the
weld seam of welded steel tubes for the detection of longitudinal and/or transverse imperfections
(ISO 10893-11)
[EN ISO 14713-2:2009, Zinc coatings - Guidelines and recommendations for the protection against
corrosion of iron and steel in structures - Part 2: Hot dip galvanizing (ISO 14713-2)
EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical
composition (ISO 14284)
EN ISO 15607, Specification and qualification of welding procedures for metallic materials - General rules
(ISO 15607)
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EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure specification - Part 1: Arc welding (ISO 15609-1)
EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
(ISO 15614-1)
ISO 11484, Steel products - Employer’s qualification system for non-destructive testing (NDT) personnel
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, EN 10021, EN 10266 and EN ISO 4885.
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 http://www.iso.org/obp
3.1.1
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.
3.1.2
normalizing rolling (for feedstock material)
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
3.1.3
thermomechanical rolling (for feedstock material)
rolling process in which the final deformation is carried out in a certain temperature range leading to a
material condition with certain properties which cannot be achieved or repeated by heat treatment
alone
Note 1 to entry: Thermomechanical rolling 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.
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3.1.4
steel with improved atmospheric corrosion resistance (for feedstock material)
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.
Note 2 to entry: Additional information for the use of steel with improved atmospheric corrosion resistance is
given in prEN 10219-2:—, Annex E.
3.1.5
quenching and tempering (for feedstock material)
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
3.1.6
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, see EN ISO 643.
3.1.7
hot-dip zinc coating
galvanizing
application of a zinc coating by immersing the prepared strip or hollow section in a molten bath
containing a zinc content of at least 99%
3.2 Symbols
For the purposes of this document, the symbols defined in EN 10266 apply.
4 Classification and designation
4.1 Classification
4.1.1 Within the grades of the non-alloy steels given in Annex A, four qualities JR, J0, J2 and K2 are
specified. These differ in respect of specified impact requirements, limits on values of various elements,
with particular reference to sulphur and phosphorus, and the inspection and testing requirements.
In accordance with the classification system in EN 10020, all steel grades Annex A are non-alloy quality
steels.
4.1.2 Within the grades of steels given in Annex B, C and D seven qualities N, NL, M, ML, Q, QL and QL1
are specified. These differ in respect of the carbon, sulphur and phosphorus content, low temperature
impact properties, production process, heat treatment and grain size.
In accordance with the classification system in EN 10020, steel grades S275NH, S275NLH, S355NH and
S355NLH are non-alloy quality steels and all other steel grades are alloy special steels.
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4.1.3 Within the grades of steels given in Annex E, three qualities J0, J2 and K2 are specified. These
differ in respect of specified impact requirements and limits on values of various elements.
In accordance with the classification system in EN 10020, all steel grades in Annex E are alloy special
steels.
4.2 Designation
4.2.1 For the products covered by this document, the steel names are allocated in accordance with
EN 10027-1; the steel numbers are allocated in accordance with EN 10027-2.
4.2.2 The designation of steel hollow sections consists of:
a) the number of this document (EN 10219-1);
b) the capital letter S for structural steel;
c) the indication of the minimum specified yield strength for thicknesses ≤ 16 mm expressed in MPa;
d) further designations for either:
1) non-alloy structural steels:
i) the capital letters JR for the qualities with specified impact properties at room
temperature,
ii) the characters J0 for the qualities with specified impact properties at 0 °C, and
iii) the characters J2 or K2 for the qualities with specified impact properties at −20 °C; or
2) normalized/normalized rolled structural steels:
i) capital letter N to indicate normalized or normalized rolled with specified impact
properties at −20 °C (see 6.4), and
ii) capital letter NL for qualities with specified impact properties at –50 °C; or
3) thermomechanical rolled structural steels:
i) capital letter M to indicate thermomechanical rolled with specified impact properties at
−20 °C (see 6.4), and
ii) capital letter ML for qualities with specified impact properties at –50 °C; or
4) structural steels in the quenched and tempered condition:
i) capital letter Q to indicate the quenched and tempered condition with specified impact
properties at −20 °C (see 6.4), and
ii) capital letter QL or QL1 for qualities with specified impact properties at –40 or –50 °C; or
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5) steels with improved atmospheric corrosion resistance:
i) the capital letters JR for the qualities with specified impact properties at room
temperature,
ii) the characters J0 for the qualities with specified impact properties at 0 °C, and
iii) the characters J2 or K2 for the qualities with specified impact properties at −20 °C,
iv) and the letter W (weather) for improved atmospheric corrosion resistance, and;
6) the capital letter H to indicate hollow sections.
EXAMPLE 1 Hollow section made of structural steel (S) with a specified minimum yield strength for thickness
not greater than 16 mm of 355 MPa, with a minimum impact energy value of 27 J at −20 °C (J2), hollow section
(H):
EN 10219-1 — S355J2H
or
EN 10219-1 — 1.0576
EXAMPLE 2 Hollow section made of structural steel (S) with a specified minimum yield strength for thickness
not greater than 16 mm of 420 MPa, thermomechanically rolled steel (M), with a minimum impact energy value of
27 J at −50 °C (L), hollow section (H):
EN 10219-1 — S420MLH
or
EN 10219-1 — 1.8848
5 Information to be obtained by the manufacturer
5.1 Mandatory information
The following information shall be contained in the order document at the time of enquiry and order:
a) the quantity (mass or total length);
b) details of the product form:
1) CFCHS = cold formed circular hollow section;
2) CFRHS = cold formed square or rectangular hollow section;
3) CFEHS = cold formed elliptical hollow section;
c) the name of the standard for dimensions and tolerances (EN 10219-2);
d) the dimensions and the type of length, length range or length (see EN 10219-2);
e) the steel designation (see 4.2).
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5.2 Options
A number of options are specified in parts 1 and 2 of this document. 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 hollow sections shall be supplied in
accordance with the basic specification.
1.1 Internal weld bead trimmed (see 6.4.2);
1.2 Other surface condition than as rolled (see 6.6);
1.3 Product analysis (see 7.1.1);
1.4 Cr, Cu, Mo, Ni, Ti and V cast analysis contents to be reported for non-alloy quality steels (see
7.1.2);
1.5 Tensile test in corner region (see 7.2.1);
1.6 Impact test in corner region (see 7.2.2);
1.7 Verification of impact properties for qualities J0 and JR (see 7.2.3);
1.8 The product shall have a chemical composition suitable for hot-dip-zinc coating (see 7.3.2);
1.9 Weld repairs to the body of structural steel hollow sections are permitted (see 7.4.4);
1.10 Full peripheral NDT (non-destructive testing) of the circular tube for imperfections – not
possible for elliptical, rectangular, square and SAW (submerged arc welded) hollow sections (see
7.5);
1.11 Ultrasonic testing for laminar imperfections (see 7.5);
1.12 Inspection certificate 3.1 for steel grades S235JRH, S275J0H, S355J0H of Annex A and S355J0WH
of Annex E instead of a test report 2.2 (see 8.1);
1.13 Inspection certificate 3.2.
5.3 Example of an order
10 t cold formed welded square hollow sections in accordance with EN 10219-2 with specified outside
dimensions 100 mm × 100 mm and wall thickness of 8 mm of 12 m approximate lengths, grade S355MH
according to EN 10219-1 including product analysis (Option 1.3) and suitable for hot dip zinc coating
(Option 1.8) and supplied with inspection certificate 3.1:
EXAMPLE 10 t – CFRHS – EN 10219-2 — 100 × 100 × 8 – approximate length 12 m
EN 10219-1 — S355MH – Options 1.3 and 1.8
6 Manufacturing process
6.1 General
Structural welded cold formed hollow sections of non-alloy steels shall conform to the requirements of
Annex A. Structural welded cold formed hollow sections of normalized/normalized rolled,
thermomechanical rolled and quenched and tempered steels shall conform to Annexes B to D and steels
with improved atmospheric corrosion resistance shall conform to the requirements of Annex E.
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