Cold formed welded structural steel hollow sections - Part 1: General

This part of prEN 10219 specifies the product characteristics, test methods and performance criteria for electric welded and submerged arc welded cold formed structural steel hollow sections of circular, square, rectangular or elliptical forms, produced without any subsequent heat treatment other than the heat treatment of the weld line.
Requirements for the technical delivery conditions are specified in prEN 10219-2 and for tolerances, dimensions and sectional properties in prEN 10219-3.
NOTE 1    prEN 10219-1 covers provision of the Construction Products Regulations (CPR) to fulfil European law for construction products. The technical delivery conditions are described within prEN 10219-2 in combination with Clauses 2, 3, 4, 5, 7 and 8 of prEN 10219-1.
NOTE 2   Hollow sections for offshore structures are covered in EN 10225.

Kaltgeformte geschweißte Hohlprofile für den Stahlbau - Teil 1: Allgemeines

Dieser Teil der Europäischen Norm legt die Erzeugnismerkmale, die Prüfverfahren und die Leistungskriterien für kaltgeformte elektrisch und unterpulvergeschweißte Hohlprofile für den Stahlbau mit kreisförmigem, quadratischem oder rechteckigem Querschnitt fest und gilt für Hohlprofile ohne nachfolgende Wärmebehandlung mit Ausnahme der Wärmebehandlung für die Schweißnaht.
Anforderungen bezüglich der Technischen Lieferbedingungen sind in EN 10219-2 und Anforderungen bezüglich der Grenzabmaße, Maße und statischen Werte sind in EN 10219-3 festgelegt.
ANMERKUNG 1    Teil 1 dieser Norm behandelt die Vorschriften der Bauproduktenverordnung (CPR) um die europäischen Gesetze bezüglich Bauprodukten zu erfüllen. Die technischen Lieferbedingungen sind in Teil 2 beschrieben und zwar im Zusammenhang mit den Abschnitten 2, 3, 4, 5, 7 und 8 dieses ersten Normenteils.
ANMERKUNG 2   Hohlprofile für Offshore-Konstruktionen werden in der Europäischen Norm EN 10225 behandelt.

Profils creux de construction soudés formés à froid en aciers - Partie 1 : Généralités

La présente partie de la prEN 10219 spécifie les caractéristiques de produit, les méthodes d’essai et les critères de performance pour les profils creux de construction formés à froid en aciers, soudés électriquement et soudés à l’arc immergé sous flux en poudre, de forme circulaire, carrée, rectangulaire ou elliptique, produits sans aucun traitement thermique ultérieur autre que le traitement thermique de la ligne de soudure.
Les exigences relatives aux conditions techniques de livraison sont spécifiées dans la prEN 10219-2 et les exigences relatives aux tolérances, dimensions et caractéristiques du profil sont spécifiées dans la prEN  10219-3.
NOTE 1   La prEN 10219-1 couvre les dispositions du Règlement Produits de Construction (RPC) permettant de satisfaire à la législation européenne sur les produits de construction. Les conditions techniques de livraison sont décrites dans la prEN 10219-2 en combinaison avec les Articles 2, 3, 4, 5, 7 et 8 de la prEN 10219-1.
NOTE 2   Les profils creux destinés aux structures marines sont traités dans l’EN 10225.

Hladno oblikovani varjeni votli konstrukcijski profili iz jekla - 1. del: Splošno

General Information

Status
Not Published
Public Enquiry End Date
02-Mar-2016
Technical Committee
Current Stage
98 - Abandoned project (Adopted Project)
Start Date
22-Mar-2021
Due Date
27-Mar-2021
Completion Date
22-Mar-2021

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SLOVENSKI STANDARD
oSIST prEN 10219-1:2016
01-februar-2016

Hladno oblikovani varjeni votli konstrukcijski profili iz jekla - 1. del: Splošno

Cold formed welded structural steel hollow sections - Part 1: General
Kaltgeformte geschweißte Hohlprofile für den Stahlbau - Teil 1: Allgemeines

Profils creux de construction soudés formés à froid en aciers - Partie 1 : Généralités

Ta slovenski standard je istoveten z: prEN 10219-1
ICS:
77.140.45 Nelegirana jekla Non-alloyed steels
77.140.70 Jekleni profili Steel profiles
oSIST prEN 10219-1:2016 en,fr,de

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

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oSIST prEN 10219-1:2016
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oSIST prEN 10219-1:2016
DRAFT
EUROPEAN STANDARD
prEN 10219-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2016
ICS 77.140.75 Will supersede EN 10219-1:2006
English Version
Cold formed welded structural steel hollow sections - Part
1: General

Profils creux de construction soudés formés à froid en Kaltgeformte geschweißte Hohlprofile für den Stahlbau

aciers - Partie 1 : Généralités - Teil 1: 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 10219-1:2016 E

worldwide for CEN national Members.
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oSIST prEN 10219-1:2016
prEN 10219-1:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 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 ........................................................................................................................................................ 6

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 ...................................................... 10

6.3 Factory production control ...................................................................................................................... 12

7 Classification and designation ................................................................................................................. 16

7.1 Classification of grades and qualities ................................................................................................... 16

7.2 Designation..................................................................................................................................................... 16

8 Marking ............................................................................................................................................................ 16

Annex A (normative) Location of samples and test pieces .......................................................................... 17

Annex ZA (informative) Relationship of this European Standard with Regulation (EU)

No.305/2011 .................................................................................................................................................. 18

Bibliography ................................................................................................................................................................. 20

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oSIST prEN 10219-1:2016
prEN 10219-1:2016 (E)
European foreword

This document (prEN 10219-1:2016) 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 10219-1:2006.

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 'Cold formed welded 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 10210-1 to prEN 10210-3.

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oSIST prEN 10219-1:2016
prEN 10219-1:2016 (E)
1 Scope

This part of prEN 10219 specifies the product characteristics, test methods and performance criteria for

electric welded and submerged arc welded cold formed structural steel hollow sections of circular,

square, rectangular or elliptical forms, produced without any subsequent heat treatment other than the

heat treatment of the weld line.

Requirements for the technical delivery conditions are specified in prEN 10219-2 and for tolerances,

dimensions and sectional properties in prEN 10219-3.

NOTE 1 prEN 10219-1 covers provision of the Construction Products Regulations (CPR) to fulfil European law

for construction products. The technical delivery conditions are described within prEN 10219-2 in combination

with Clauses 2, 3, 4, 5, 7 and 8 of prEN 10219-1.
NOTE 2 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 10219-2:2016, Cold formed welded structural steel hollow sections - Part 2: Technical delivery

conditions

prEN 10219-3:2016, Cold formed welded 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)

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

(ISO 6892-1)
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prEN 10219-1:2016 (E)

EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical

composition (ISO 14284)
3 Terms and definitions
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
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.

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
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prEN 10219-1:2016 (E)
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.
3.2 Symbols
For the purposes of this document, the symbols defined in EN 10266 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 10219-2:2016, Tables A.1, B.1, C.1, D.1 or E.1.

4.2 Mechanical properties (yield strength, tensile strength, elongation and impact

strength)

4.2.1 Under the inspection and testing conditions as specified in prEN 10219-2:2016, Clause 8 and in

the delivery condition as specified in prEN 10219-2:2016, 6.5, the mechanical properties of the finished

hollow section shall conform to the relevant requirements of prEN 10219-2:2016, Tables A.3, B.3, B.4,

C.3, C.4, D.3, D.4 or E.3.

Any heat treatment at more than 580 °C and any heat treatment not processed in the normalizing

temperature range may result to a reduction in the mechanical properties and is therefore not

recommended.
NOTE Flame straightening can be applied in accordance with CEN/TR 10347.

4.2.2 For impact tests, standard Charpy-V-notch test pieces in accordance with EN ISO 148-1 shall be

used. If the nominal product thickness is not sufficient for the preparation of standard test pieces, the

test shall be carried out using test pieces of width less than 10 mm, but not less than 5 mm. The

minimum average values given in prEN 10219-2:2016, Tables A.3, B.4, C.4, D.4 and E.3 shall be reduced

in direct proportion to the actual width of the test piece compared to that of the standard test piece.

Impact tests are not required for specified thicknesses < 6,0 mm.

NOTE If a Charpy test is performed at a lower temperature than specified in the standard and the impact

energy values obtained meet the requirements at the higher temperature, then the material is deemed to conform

to the standard.
4.3 Weldability

The steels specified in this European Standard are weldable as given in prEN 10219-2:2016, Annexes A

to E. General requirements for welding the products in accordance with this European Standard are

given in EN 1011-1 and EN 1011-2.

The maximum carbon equivalent value (CEV) for all grades, based on the cast analyses, given in

prEN 10219-2:2016, Tables A.2, B.2, C.2, D.2 or E.2 shall apply.

When determining the CEV the following formula of the International Institute of Welding (IIW) shall be

used:
Mn Cr++Mo V Ni+ Cu
CEV=C++ +
6 5 15
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oSIST prEN 10219-1:2016
prEN 10219-1:2016 (E)

Care should be taken when welding in corner regions of cold formed hollow sections.

NOTE 1 For more information, refer to EN 1993-1-8, Table 4.2 and see below.

NOTE 2 When welding hollow sections, as product thickness, strength level and CEV increase, the occurrence

of cold cracking in the welded zone forms the main risk. Cold cracking is caused by a combination of the following

factors:
— high levels of diffusible hydrogen in the weld metal;
— a brittle structure in the heat affected zone;
— significant tensile stress concentrations in the welded joint.

NOTE 3 By using guidelines, specified for example in EN 1011-1, EN 1011-2 or any other relevant welding

standard, the recommended welding conditions and the various welding ranges for the steel grades can be

determined. These will vary depending on the product thickness, the applied welding energy, the design

requirements, the electrode efficiency, the welding process and the weld metal properties.

4.4 Tolerances on dimensions and shape
Tolerances of dimensions and shape shall be as specified in prEN 10219-3.
4.5 Dangerous substances

National regulations on dangerous substances may require verification and declaration on release, and

sometimes content, when construction products covered by this standard are placed on those markets.

In the absence of European harmonized test methods, verification and declaration on release/content

should be done taking into account national provisions in the place of use.

NOTE An informative database covering European and national provisions on dangerous substances is

available at the Construction web site on EUROPA accessed through:
http://ec.europa.eu/enterprise/construction/cpd-ds/.
5 Testing, assessment and sampling methods
5.1 Chemical composition (durability)
5.1.1 Frequency of tests

For the purpose of FPC (factory production control) the test frequency shall be up to 100 casts per steel

grade.
5.1.2 Selection and preparation of samples for chemical analysis
The preparation of samples shall be in accordance with EN ISO 14284.
5.1.3 Test method

The elements to be determined and reported shall be those given in prEN 10219-2:2016, Tables A.1,

B.1, C.1, D.1 or E.1 for the cast analysis, as applicable and those for determining the carbon equivalent

value.

The choice of a suitable physical or chemical analytical method for the analysis shall be at the discretion

of the manufacturer.
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prEN 10219-1:2016 (E)
5.2 Mechanical properties
5.2.1 Frequency of test for the mechanical properties

Mechanical properties are determined by tensile testing (yield strength, tensile strength and

elongation) and by impact testing (impact energy).

For the purpose of FPC the test frequency shall be up to 1 000 t per steel grade.

5.2.2 Location and orientation of samples for mechanical tests
5.2.2.1 Tensile test pieces
The test pieces for tensile testing shall conform to the following:
a) the test piece may be the full section of the product;

b) for circular or elliptical sections, not tested in full section, the test pieces shall be taken either

longitudinally or transversely, at the discretion of the manufacturer, at a point remote from the

weld (see Annex A);

c) for square or rectangular sections, not tested in full section, the test pieces shall be taken either

longitudinally or transversely, at the discretion of the manufacturer, midway between the corners,

from one of the sides not containing the weld (see Annex A).
5.2.2.2 Impact test pieces
Test pieces for impact testing shall conform to the following:

a) for circular or elliptical sections the test pieces shall be taken either longitudinally or transversely,

at the discretion of the manufacturer and at a point remote from the weld (see Annex A);

b) for square or rectangular sections the test pieces shall be taken either longitudinally or

transversely, at the discretion of the manufacturer, midway between the corners and from one of

the sides not containing the weld (see Annex A).
5.2.3 Preparation of test pieces for mechanical tests
5.2.3.1 General

The requirements of EN ISO 377 shall apply in conjunction with the test piece location specified in 5.2.2.

5.2.3.2 Tensile test pieces
The requirements of EN ISO 6892-1, as appropriate, shall apply.

Test pieces may be non-proportional, but in cases of dispute proportional test pieces having a gauge

length LS= 5,65 shall be used (see 5.2.4). For thicknesses less than 3 mm, a gauge length of Lo =

80 mm shall be used provided a test piece width of 20 mm can be achieved, otherwise a gauge length of

50 mm shall be used with a test piece width of 12,5 mm.
5.2.3.3 Impact test pieces

Impact Charpy-V-notch test pieces shall be machined and prepared in accordance with EN ISO 148-1

with the exception that 10 x 2,5 mm test pieces shall not be used. In addition, the following

requirements shall apply:
a) the orientation of the notch is perpendicular to the wall thickness;
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oSIST prEN 10219-1:2016
prEN 10219-1:2016 (E)

b) for specified thicknesses > 12 mm, standard test pieces shall be machined in such a way that one

side is not further away than 2 mm from the outside surface;

c) for specified thicknesses ≤ 12 mm, when test pieces with reduced sections are used, the width shall

be ≥ 5 mm; the largest obtainable width shall be used. If test pieces of width 5 mm cannot be

obtained than the material need not be submitted to impact testing.

NOTE Test piece size is dependent on the actual thickness of the sample and, for circular or elliptical hollow

sections, allowance also needs to be made for the curvature of the section.
5.2.4 Test methods for mechanical tests
5.2.4.1 Test temperature

Tensile tests shall be carried out in the temperature range 10 °C to 35 °C. Impact tests shall be carried

out at the temperatures specified in prEN 10219-2:2016, Table A.3 for non-alloy steels and Tables B.4,

C.4, D.4 or E.3 for the other steel grades.
5.2.4.2 Tensile tests
The tensile test shall be carried out in accordance with EN ISO 6892-1.

For the specified yield strengths in prEN 10219-2:2016, Tables A.3, B.3, C.3, D.3 and E.3, the upper yield

strength (R ) shall be determined.

If a distinct yield phenomenon is not present, either the 0,2 % proof strength non-proportional

extension (R ) or the 0,5 % proof strength total extension (R ) shall be determined at the discretion

p0,2 t0,5

of the manufacturer. In cases of dispute, the 0,2 % proof strength (R ) shall apply.

p0,2

If a non-proportional test piece is used, the percentage elongation value obtained after fracture (A) shall

be converted to the value for a gauge length L = 5,65 √ S using the conversion tables given in

o o
EN ISO 2566-1.

For thicknesses less than 3 mm, the percentage elongation may be reported for a gauge length of 80 mm

or 50 mm (see 5.2.3.2).
5.2.4.3 Impact tests

The impact test shall be carried out in accordance with EN ISO 148-1 on Charpy-V-notch specimens

using the 2 mm striker. In addition, the following requirements shall apply:

a) The average value of a set of three test pieces shall be equal to or greater than the specified value.

One individual value may be below the specified value, provided that it is not less than 70 % of that

value;

b) If the conditions under a) are not satisfied then an additional set of three test pieces may be taken,

at the discretion of the manufacturer, from the same sample and tested. To consider the test unit as

conforming after testing the second set, the following conditions shall all be satisfied

simultaneously:

1) The average value of the six tests shall be equal to or greater than the minimum specified value;

2) Not more than two of the six individual values may be lower than the minimum specified value;

3) Not more than one of the six individual values may be lower than 70 % of the minimum

specified value.
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prEN 10219-1:2016 (E)

c) If these conditions are not satisfied, the sample product is rejected and retests shall be carried out

on the remainder of the test unit (see 5.4).
5.3 Weldability

Concerning the weldability for which the essential characteristic is the chemical composition, see 5.1.

5.4 Tolerances on dimensions and shape
5.4.1 Frequency of tests

The frequency of tests on dimensions and shape shall be carried out in accordance with prEN 10219-3.

5.4.2 Visual inspection

The hollow sections shall be visually inspected for compliance with the requirements of 4.4.

5.4.3 Dimensional check

The dimensions of the hollow sections shall be checked for compliance with the requirements of

prEN 10219-3.
6 Assessment and verification of constancy of performance (AVCP)
6.1 General

The compliance of cold formed welded structural steel hollow sections with the requirements of this

standard and with the performance declared by the manufacturer in the DoP (declaration of

performance) shall be demonstrated by:
— assessment of the performance of the construction product;
— factory production control by the manufacturer, including product assessment.

The manufacturer shall always retain the overall control and shall have the necessary means to take

responsibility for the conformity of the product with its declared performance(s).

6.2 Assessment of the performance of the construction product
6.2.1 General

The assessment of the performance of the construction product shall be performed for all

characteristics included in the standard for which the manufacturer declares performances:

— at the beginning of the production of a new or modified cold formed welded structural steel hollow

section (unless a member of the same product range), or

— at the beginning of a new or modified method of production (where this may affect the stated

properties), or it shall be repeated for the appropriate characteristic(s), whenever a change occurs

in the hot finished structural steel hollow section design, in the raw material, or in the method of

production process (subject to the definition of a family), which would affect significantly one or

more of the characteristics.

Assessment previously performed in accordance with the provisions of this standard, may be taken into

account provided that they were made to the same or a more rigorous test method, under the same

AVCP system on the same product or products of similar design, construction and functionality, such

that the results are applicable to the product in question.
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For the purposes of assessment, the manufacturer's products may be grouped into families, where it is

considered that the results for one or more characteristics from any one product within the family are

representative for that same characteristics for all products within that same family.

NOTE 1 Products may be grouped in different families for different characteristics.

NOTE 2 Reference to the assessment method standards should be made to allow the selection of a suitable

representative sample.

Products bearing regulatory marking in accordance with appropriate harmonized European

specifications may be presumed to have the performances declared in the DoP, although this does not

replace the responsibility on the cold formed welded structural steel hollow sections manufacturer to

ensure that cold formed welded structural hollow steel sections as a whole is correctly manufactured.

6.2.2 Test samples, testing and compliance criteria

The number of samples of cold formed welded structural steel hollow sections to be tested/assessed

shall be in accordance with Table 1.
Table 1 — Number of samples to be tested and compliance criteria
Assessment Compliance
Characteristics Requirements No. of samples
method criteria
Durability (chemical 4.1, 5.1 2 (1 from each of 2 4.1
composition) prEN 10219-2:2016, different casts)
Tables A.1, B.1, C.1,
D.1 and E.1
Yield strength 4.2.1, 12 (6 products from 4.2.1
prEN 10219-2:2016, each of 2 different
5.2
Tables A.3, B.3, C.3, casts
D.3 and E.3
Tensile strength 4.2.1, 12 (6 products from 4.2.1
rEN 10219-2:2016, each of 2 different
5.2
Tables A.3, B.3, C.3, casts
D.3 and E.3
Elongation 4.2.1, 12 (6 products from 4.2.1
prEN 10219-2:2016, each of 2 different
5.2
Tables A.3, B.3, C.3, casts
D.3 and E.3
Impact strength 4.2.2, 4.2.3, 12 (6 products from 4.2.2
prEN 10219-2:2016, each of 2 different
5.2
Tables A.3, B.4, C.4, casts
D.4 and E.3
Weldability 4.3, 2 (1 from each of 2 4.3
prEN 10219-2:2016, different casts)
5.3
Tables A.1, B.1, C.1,
D.1 and E.1
Tolerances on 4.4, 5.4, 12 (6 products from 4.4
dimensions and prEN 10219-3:2016, prEN 10219-3:2016, each of 2 different
shape Clause 6 Clause 7 casts
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Questions, Comments and Discussion

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