SIST EN 10210-1:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Warmgefertigte Hohlprofile für den Stahlbau aus unlegierten Baustählen und aus Feinkornbaustählen - Teil 1: Technische LieferbedingungenProfils creux de construction finis a chaud en aciers non alliés et a grains fins - Partie 1 : Conditions techniques de livraisonHot finished structural hollow sections of non-alloy and fine grain steels - Part 1: Technical delivery conditions77.140.70Jekleni profiliSteel profiles77.140.45Nelegirana jeklaNon-alloyed steelsICS:Ta slovenski standard je istoveten z:EN 10210-1:2006SIST EN 10210-1:2006en01-julij-2006SIST EN 10210-1:2006SLOVENSKI
STANDARDSIST EN 10210-1:19971DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10210-1April 2006ICS 77.140.75Supersedes EN 10210-1:1994
English VersionHot finished structural hollow sections of non-alloy and fine grainsteels - Part 1: Technical delivery conditionsProfils creux pour la construction finis à chaud en aciersnon alliés et à grains fins - Partie 1 : Conditions techniquesde livraisonWarmgefertigte Hohlprofile für den Stahlbau ausunlegierten Baustählen und aus Feinkornbaustählen - Teil1: Technische LieferbedingungenThis European Standard was approved by CEN on 16 March 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10210-1:2006: ESIST EN 10210-1:2006

Structural hollow sections of non-alloy quality steels — Chemical composition and mechanical properties.21 Annex B (normative)
Structural hollow sections of fine grain steels — Chemical composition and mechanical properties.23 Annex C (normative)
Location of samples and test pieces.26 Annex D (normative)
Evaluation of conformity.28 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive.33 Bibliography.38 SIST EN 10210-1:2006

1 Scope This part of this European Standard specifies technical delivery conditions for hot finished hollow sections of circular, square, rectangular or elliptical forms and applies to hollow sections formed hot, with or without subsequent heat treatment, or formed cold with subsequent heat treatment to obtain equivalent metallurgical conditions to those obtained in the hot formed product.
Requirements for tolerances, dimensions and sectional properties are contained in EN 10210-2. NOTE A range of material grades is specified in this standard and the user should select the grade appropriate to the intended use and service conditions. The grades and mechanical properties of the finished hollow sections are compatible with those in EN 10025-2 and EN 10025-3. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 287-1, Qualification test of welders - Fusion welding - Part 1: Steels 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 steels
— Part 1: Steel names EN 10027-2, Designation systems for steels - Part 2: Numerical system EN 10045-1, Metallic materials — Charpy impact test — Part 1: Test method
EN 10052:1993, Vocabulary of heat treatment terms for ferrous products EN 10168, Steel products - Inspection documents - List of information and description EN 10204, Metallic products — Types of inspection documents EN 10210-2:2006, Hot finished structural hollow sections of non-alloy and fine grain steels - Part 2: Tolerances, dimensions and sectional properties 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 10246-8, Non-destructive testing of steel tubes — Part 8: Automatic ultrasonic testing of the weld seam of electric welded steel tubes for the detection of longitudinal imperfections SIST EN 10210-1:2006

EN 10246-10, Non-destructive testing of steel tubes — Part 10: Radiographic testing of the weld seam of automatic fusion arc welded steel tubes for the detection of imperfections EN 10256, Non-destructive testing of steel tubes - Qualification and competence of level 1 and 2 non-destructive testing personnel CR 10261, ECISS Information Circular 11 — Iron and steel — Review of available methods of chemical analysis EN 10266:2003, Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997) EN ISO 643, Steels - Micrographic determination of the apparent grain size (ISO 643:2003) EN ISO 2566-1, Steel — Conversion of elongation values — Part 1: Carbon and low alloy steels (ISO 2566-1:1984) EN ISO 9001:2000, Quality management systems — Requirements (ISO 9001:2000) EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) EN ISO 15607, Specification and qualification of welding procedures for metallic materials - General rules (ISO 15607:2003) EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1:2004) 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 15614-1:2004)
3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply in addition to or where different from those in EN 10020:2000, EN 10021:1993, EN 10052:1993 and EN 10266:2003. 3.1.1 cold forming process where the main forming is done at ambient temperature 3.1.2 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 SIST EN 10210-1:2006

EXAMPLE Structural steel (S) with a specified minimum yield strength for a thickness not greater than 16 mm of 275 MPa, with a minimum impact energy value of 27 J at 0 °C (J0), hollow section (H): EN 10210-S275J0H 4.2.3 For fine grain steel structural hollow sections the steel designation consists of:  number of this European Standard (EN 10210-1);
1) 1 MPa = 1 N/mm2 SIST EN 10210-1:2006

–50 °C;  capital letter H to indicate hollow sections. EXAMPLE Structural steel (S) with a specified minimum yield strength for a thickness not greater than 16 mm of 355 MPa, normalized condition (N), with a minimum impact energy value of 27 J at -50 °C (L), hollow section (H): EN 10210-S355NLH 5 Information to be obtained by the manufacturer 5.1 Mandatory information The following information shall be obtained by the manufacturer at the time of enquiry and order: a) the quantity (mass or total length); b) the type of length, length range or length (see EN 10210-2); c) details of the product form: HFCHS = hot finished circular hollow sections HFRHS = hot finished square or rectangular hollow sections HFEHS = hot finished elliptical hollow sections; d) the steel designation (see 4.2); e) the dimensions (see EN 10210-2). 5.2 Options A number of options are specified in Parts 1 and 2 of this European Standard. Those relevant to this part 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 Product analysis (see 6.5.1). 1.2 Cr, Cu, Mo, Ni, Ti and V cast analysis contents to be reported (see 6.5.2). 1.3 Verification of impact properties for qualities J0 and JR (see 6.6.4).
1.4 Suitability for hot dip galvanizing (see 6.7.2). 1.5 Weld repairs to the body of non-alloy structural steel hollow sections not permitted (see 6.8.4). 1.6 Specific inspection and testing for non-alloy quality grades JR and J0 (see 7.1.1). SIST EN 10210-1:2006

100 t 12 m Exact length – HFRHS – EN 10210– S355J0H – 100 × 100 × 8 – Options 1.3, 1.6 6 Requirements 6.1 General Structural hollow sections of non-alloy steels shall conform to the requirements of Annex A. Structural hollow sections of fine grain steels shall conform to the requirements of Annex B. 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 steel producer. 6.2.2 For the non-alloy steels given in Annex A, the method of deoxidation shall be as specified in Table A.1. 6.2.3 For the fine grain steels given in Annex B the method of deoxidation shall be as specified in Table B.1. 6.3 Structural hollow section manufacturing process 6.3.1 Structural hollow sections shall be manufactured by a seamless or by a welding process. Welded sections manufactured by a continuous process shall not include the welds used to join the lengths of strip prior to forming the hollow section, except as permitted in 9.4.3. 6.3.2 The fine grain steels given in Annex B shall have a ferritic grain size equal to or finer than 6 when measured in accordance with EN ISO 643 (see 6.6.3). 6.3.3 Electric welded hollow sections are normally supplied without trimming the internal weld bead. 6.3.4 All NDT activities shall be carried out by qualified and competent level 1, 2 and/or 3 personnel authorised to operate by the employer. The qualification shall be in accordance with EN 10256 or, at least, an equivalent to it. It is recommended that the level 3 personnel be certified in accordance with EN 473 or, at least, an equivalent to it. The operating authorisation issued by the employer shall be in accordance with a written procedure. SIST EN 10210-1:2006

Table 1 — Permissible deviations of the product analysis from the specified limits of the cast analysis specified in Tables A.1 and B.1 Element Permissible maximum content in the cast analysis Permissible deviation of the product analysis from specified limits for the cast analysis
% by mass % by mass ≤ 0,20 + 0,02 Ca
> 0,20 + 0,03 Si ≤ 0,60 + 0,05
non-alloy ≤1,60 + 0,10 Mn fine grain ≤ 1,70 – 0,05
+ 0,10 non-alloy ≤ 0,040 + 0,010 P fine grain ≤ 0,035 + 0,005 non-alloy ≤ 0,040 + 0,010 S
fine grain ≤ 0,030 + 0,005 Nb ≤ 0,060 + 0,010 V ≤ 0,20 + 0,02 Ti ≤ 0,03 + 0,01 Cr ≤ 0,30 + 0,05 Ni ≤ 0,80 + 0,05 Mo ≤ 0,10 + 0,03 ≤ 0,35 + 0,04 Cu 0,35 < Cu ≤ 0,70 + 0,07 N ≤ 0,025 + 0,002 Altotal ≥ 0,020 – 0,005 a For S235JRH in thicknesses ≤16 mm, the permissible deviation = 0,04 % C, and for thicknesses > 16 mm and ≤ 40 mm the permissible deviation = 0,05 % C.
6.5.2 For non-alloy steel products supplied with specific inspection and testing the following option may be specified (see 7.1): Option 1.2 the recording on the inspection certificate of the Cr, Cu, Mo, Ni, Ti and V content (cast analysis). 6.6 Mechanical properties 6.6.1 Under the inspection and testing conditions as specified in Clause 7 and in the delivery condition as specified in 6.4, the mechanical properties shall conform to the relevant requirements of Table A.3 or Table B.3. NOTE Stress relief annealing at more than 580 °C or for over one hour may lead to deterioration of the mechanical properties.
General requirements for welding of the products in accordance with this European Standard are given in EN 1011-1 and EN 1011-2.
NOTE 1 When welding these products, 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 2 By using guidelines, specified for example in EN 1011-1, EN 1011-2 or any other relevant 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. 6.7.2 Suitability for hot dip galvanizing Option 1.4 the products shall be suitable for hot dip galvanizing. SIST EN 10210-1:2006

6.8.6 The repaired hollow section shall conform to all the requirements of this European Standard. 6.9 Non-destructive testing of welds The seam weld of all welded hollow sections supplied with specific inspection and testing shall be subjected to a non-destructive test in accordance with 9.4. 6.10 Tolerances and mass 6.10.1 Tolerances Tolerances shall be as specified in EN 10210-2. 6.10.2 Mass Mass shall be determined using a density of 7,85 kg/dm3. NOTE Dimensions, sectional properties and mass per unit length for a limited range of sizes of hot finished structural hollow sections are given in EN 10210-2. The purchaser should preferably select hollow section dimensions from this limited range of sizes. 7 Inspection
7.1 Types of inspection 7.1.1 Non-alloy steel hollow sections of qualities JR and J0 (see Annex A) shall be supplied with non-specific inspection in accordance with EN 10021 unless Option 1.6 is specified. SIST EN 10210-1:2006

Table 2 — Inspection programme for non-alloy steels in accordance with Annex A Inspection requirements Inspection programme Type of test Subclause reference(s) Non-specific inspection Specific inspection
1 Cast analysis 6.5 One result per One per cast
9.1 delivery item
2 Tensile test 6.6 One result per One per test unita b
9.2 delivery item
Mandatory 3 Impact test for qualities 6.6 Not applicable One set per test unita, b tests
J2 and K2 only 9.2
4 Surface condition 6.8 See 9.3 See 9.3
and dimensions 6.10
9.3
5 For welded products 6.9 Not applicable All products, full length
NDT of the weld 9.4
6 Product analysis 6.5 Not applicable One per test unita
(Option 1.1) 9.1
7 Cast analysis 6.5 Not applicable See option 1.2
additional elements (Option 1.2) 9.1
Optional 8 Impact test for qualities 6.6 Not applicable One set per test unita b tests
JR and J0 9.2
(Option 1.3)
9 Tensile test in 6.6 One result per One per test unita
corner region 9.2 delivery item
(Option 1.8)
10 Impact test in 6.6 Not applicable One set per test unita
corner region 9.2
(Option 1.9)
a For test unit see 8.1.3. b Longitudinal or transverse samples at the discretion of the manufacturer.
Table 3 — Inspection programme for fine grain steels in accordance with Annex B Inspection requirements Inspection programme
Type of test Subclause reference(s) Specific inspection
1 Cast analysis 6.5 One per cast
9.1
2 Tensile test 6.6 One per test unitab
9.2
Mandatory 3 Impact test 6.6 One set per test unita b tests
9.2
4 Surface condition and 6.8 see 9.3
dimensions 6.10
9.3
5 For welded products
6.9 All products, full length
NDT of the weld 9.4
6 Product analysis 6.5 One per test unita
(Option 1.1) 9.1
Optional 7 Tensile test in 6.6 One per test unita tests
corner region 9.2
(Option 1.8)
8 Impact test in 6.6 One set per test unita
corner region 9.2
(Option 1.9)
a For test unit see 8.1.3. b Longitudinal or transverse samples at the discretion of the manufacturer.
8 Sampling 8.1 Frequency of tests 8.1.1 For products supplied with non-specific inspection, see Table 2. 8.1.2 For products supplied with specific inspection, the verification of the mechanical properties and product analysis, if applicable, shall be carried out by test unit. A test unit is defined as a quantity of hollow sections from one or more cast(s) of the same grade and dimensions, manufactured by the same process (i.e. electric welding, submerged arc welding or seamless), and, if applicable, in the same heat treatment condition, submitted for acceptance at the same time. The following samples shall be taken from one sample product of each test unit:  1 sample for tensile testing;  1 sample sufficient for 2 sets of 3 impact test pieces; SIST EN 10210-1:2006

Table 4 — Test units Type of hollow section Test unit Circular Square, rectangular or elliptical
Outside diameter External perimeter Mass
D
maximum mm mm t ≤ 114,3 ≤ 400 40
> 114,3 ≤ 323,9 > 400 ≤ 800 50
> 323,9 > 800 75
8.2 Preparation of samples and test pieces 8.2.1 Selection and preparation of samples for chemical analysis Samples for product analysis, when required shall be taken from the sample product or alternatively from test pieces used for mechanical testing or from the full thickness of the hollow section at the same location as for the mechanical test samples. The preparation of samples shall be in accordance with EN ISO 14284.
8.2.2 Preparation of test pieces for mechanical tests 8.2.2.1 General The requirements of EN ISO 377 shall apply in conjunction with the test piece location specified in 8.2.3. 8.2.2.2 Tensile test pieces The requirements of EN 10002-1 as appropriate shall apply. Test pieces may be non-proportional, but in cases of dispute proportional test pieces having a gauge length Lo = 5,65 √ So shall be used (see 9.2.2).
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. 8.2.2.3 Impact test pieces Impact V-notch test pieces shall be machined and prepared in accordance with EN 10045-1. In addition, the following requirements shall apply: a) 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 a rolled surface; SIST EN 10210-1:2006

longitudinally or transversely, at the discretion of the manufacturer, midway between the corners, and, for welded sections, from one of the sides not containing the weld (see Annex C). Option 1.8 longitudinal test pieces shall be taken from one of the corner regions, but remote from the weld in welded sections, (see Annex C). 8.2.3.2 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, for welded sections, at a point remote from the weld (see Annex C); 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, for welded sections, from one of the sides not containing the weld (see Annex C). Option 1.9 longitudinal test pieces shall be taken from one of the corner regions, but remote from the weld in welded sections, (see Annex C) with the notch orientated towards the outer radius of the corner. 9 Test methods 9.1 Chemical analysis The elements to be determined and reported shall be those given in Table A.1, and Option 1.2 if specified, or those in Table B.1, as applicable. The choice of a suitable physical or chemical analytical method for the analysis shall be at the discretion of the manufacturer. In case of dispute, the method used shall be agreed taking into account CR 10261. SIST EN 10210-1:2006

(ReH) shall be determined. If a yield phenomenon is not present, the 0,2 % proof strength non-proportional extension (Rp0,2) or the 0,5 % proof strength total extension (Rt0,5) shall be determined. In cases of dispute, the 0,2 % proof strength (Rp0,2) shall apply. 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 Lo = 5,65 √ So using the conversion tables given in 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 8.2.2.2). In this case the values to be achieved shall be agreed between the purchaser and the manufacturer at the time of enquiry and order. 9.2.3 Impact tests The impact test shall be carried out in accordance with EN 10045-1. 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; 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 9.5). 9.3 Visual inspection and dimensional check 9.3.1 Visual inspection The hollow sections shall be visually inspected for compliance with the requirements of 6.8. SIST EN 10210-1:2006

When the welds of welded structural hollow sections are to be subjected to non-destructive testing, the method shall be in accordance with 9.4.2 or 9.4.3. At the manufacturer’s discretion, the non-destructive testing may be carried out either on the circular shape prior to final forming or on the round, square, rectangular or elliptical hollow sections after final forming. 9.4.2 Electric welded sections The weld seam of electric welded hollow sections shall be tested in accordance with one of the following European Standards. The standard to be applied is at the discretion of the manufacturer. a) EN 10246-3 to acceptance level E4, with the exception that the rotating tube/pancake coil technique shall not be permitted; b) EN 10246-5 to acceptance level F5; c) EN 10246-8 to acceptance level U5. 9.4.3 Submerged arc welded sections
The weld seam of submerged arc welded hollow sections shall be tested either in accordance with EN 10246-9 to acceptance level U4 or by radiography in accordance with EN 10246-10 with an image quality class R2. Butt welds, used to join lengths of strip/plate together in the spiral submerged arc weld process, shall be permitted, provided that the butt weld is tested to the same type of procedure and meets the same acceptance level as the main weld seam. 9.5 Retests, sorting and reprocessing For retests, sorting and reprocessing the requirements of EN 10021 shall apply. 10 Marking 10.1 Except as provided for in 10.2 for hollow sections which are bundled, each hollow section shall be marked by suitable and durable methods such as painting, stamping, adhesive labels or attached tags with the following: 
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