EN 10305-3:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Präzisionsstahlrohre - Technische Lieferbedingungen - Teil 3: Geschweißte maßgewalzte RohreTubes de précision en acier - Conditions techniques de livraison - Partie 3 : Tubes soudés calibrés à froidSteel tubes for precision applications - Technical delivery conditions - Part 3: Welded cold sized tubes77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific useICS:Ta slovenski standard je istoveten z:EN 10305-3:2016SIST EN 10305-3:2016en,fr,de01-oktober-2016SIST EN 10305-3:2016SLOVENSKI
STANDARDSIST EN 10305-3:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10305-3
March
t r s x ICS
y yä s v rä y w Supersedes EN
s r u r wæ uã t r s rEnglish Version
Steel tubes for precision applications æ Technical delivery conditions æ Part
uã Welded cold sized tubes Tubes de prßcision en acier æ Conditions techniques de livraison æ Partie
u ã Tubes soudßs calibrßs à froid
Präzisionsstahlrohre æ Technische Lieferbedingungen æTeil
uã Geschweißte maßgewalzte Rohre This European Standard was approved by CEN on
s z January
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
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t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s r u r wæ uã t r s x ESIST EN 10305-3:2016

193,7 mm. This document may also be applied to other types (excluding square and rectangular) of cross section. Tubes according to this document are characterized by having precisely defined tolerances on dimensions and a specified maximum surface roughness. Typical fields of application are in the vehicle, furniture and general engineering industries. 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 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 EN 10168, Steel products - Inspection documents - List of information and description EN 10204, Metallic products - Types of inspection documents 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 3773) EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels (ISO 2566-1) EN ISO 4287, Geometrical product specifications (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters (ISO 4287) EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1) EN ISO 8492, Metallic materials - Tube - Flattening test (ISO 8492) EN ISO 8493, Metallic materials - Tube - Drift-expanding test (ISO 8493) EN ISO 10893-1, Non-destructive testing of steel tubes - Part 1: Automated electromagnetic testing of seamless and welded (except submerged arc-welded) steel tubes for the verification of hydraulic leaktightness (ISO 10893-1) SIST EN 10305-3:2016

imperfection discontinuity in the wall or on the pipe surfaces detectable by methods described in this document Note 1 to entry: Imperfections with a size complying with the acceptance criteria specified in this document are considered to have no practical implication on the intended use of the product. 3.4 defect imperfection of a size not complying with the acceptance criteria specified in this document Note 1 to entry: Defects are considered to adversely affect or limit the intended use of the product. 3.5 parent coil coil originating from the hot rolling process prior to any subsequent operation (pickling, slitting, cold rolling or coating) SIST EN 10305-3:2016

Option 1: specification of a steel grade not specified in this document (see 8.2);
Option 3: suitability for hot-dip galvanizing (see 8.2);
Option 4: surface condition for further processing (see 8.4.1);
Option 6: removal of internal weld bead (see 8.4.2); SIST EN 10305-3:2016

Option 8: measurement of surface roughness (see 8.4.4);
Option 9: specific surface roughness (see 8.4.4);
Option 11: non-destructive testing of the weld seam for the detection of longitudinal imperfections (see 8.4.8);
Option 12: non-destructive testing for the detection of longitudinal imperfections (see 8.4.8 and 11.7);
Option 13: non-destructive testing for verification of leak-tightness (see 8.4.8);
Option 14: specification of a procedure to test transverse welds for the detection of imperfections (see 8.4.8);
Option 15: specification of a cross section other than circular (see 8.5.1.1);
Option 16: reduced diameter tolerances (see 8.5.1.2);
Option 17: unilateral diameter tolerance (see 8.5.1.2);
Option 19: reduced wall thickness tolerance (see 8.5.1.3);
Option 20: unilateral wall thickness tolerance (see 8.5.1.3);
Option 21: another specified length and/or tolerance (see 8.5.2);
Option 22: reduced maximum deviation from straightness (see 8.5.3);
Option 23: specified end finishing (see 8.5.4);
Option 25: flattening or drift expanding test for delivery condition +A or +N (see Table 9);
Option 26: test unit with tubes from one cast only (see 10.1);
Option 27: more restrictive requirement on flattening test (see 11.2);
Option 28: alternative marking (see Clause 12);
Option 29: delivery without corrosion protection (see Clause 13);
Option 30: specified corrosion protection (see Clause 13);
Option 38: unbundled tubes or specific method of packaging (see Clause 13). 6.3 Example of an order 12 000 m tube with an outside diameter of D = 40 mm and a wall thickness of T = 1,5 mm in accordance with this document, made of steel grade E235 in the normalized condition, pickled, to be delivered in standard lengths of 6 m with an 3.1 inspection certificate in accordance with EN 10204. 12 000 m tubes – D 40 x T 1,5 – EN 10305-3 –E235+N – S2 – standard length – inspection certificate 3.1 SIST EN 10305-3:2016

The tubes shall be manufactured from strip by electric welding. The tubes shall not contain strip end welds except for tubes to be supplied coiled for which the delivery conditions +A or +N shall be specified. Possible surface conditions are: a) S1 (black); b) S2 (pickled); c) S3 (cold rolled); d) S4 (coated to an agreed condition). The surface conditions S1 and S3 apply for the strip. The surface condition S2 and S4 may apply for the strip or the tube; the purchaser should, where necessary, indicate the required condition at the time of enquiry and order. 7.2.2 Tubes made of the steel grades E155, E195, E235, E275 and E355 shall be supplied in the delivery condition +CR1 or +A or +N (see Table 1). Tubes made of the grades E190, E220, E260, E320, E370, E420, E460, E500, E550, E600 and E700 shall be supplied in the delivery condition +CR2. 7.2.3
All non-destructive testing (NDT) activities shall be carried out by qualified and competent level 1, 2 and/or 3 personnel authorized to operate by the employer. The qualification shall be in accordance with ISO 11484 or, at least, an equivalent to it. It is recommended that the level 3 personnel be certified in accordance with EN ISO 9712 or, at least, an equivalent to it. The operating authorization issued by the employer shall be in accordance with a written procedure. NDT operations shall be authorized by a level 3 NDT individual approved by the employer. NOTE The definition of levels 1, 2 and 3 can be found in appropriate standards, e.g. EN ISO 9712 and ISO 11484. SIST EN 10305-3:2016

the delivery condition +A or +N, respectively. c If further heat treatment is applied, the resulting mechanical properties may be outside the specified requirements. 8 Requirements 8.1 General The tubes, when supplied in a delivery condition indicated in Table 1 and inspected in accordance with Clauses 9, 10 and 11, shall comply with the requirements of this document. In addition, the general technical delivery requirements specified in EN 10021 apply. 8.2 Chemical composition The cast analysis reported by the steel producer shall apply and comply with the requirements of Table 2. A steel grade not specified in this document may be specified (see option 1). NOTE When subsequently welding tubes produced in accordance with this document, it is important to take account of the fact that the behaviour of the steel during and after welding is dependent not only on the steel composition and the delivery condition but also on the conditions of preparing for and carrying out the welding. Option 1: A steel grade not specified in this document with a maximum total content of alloying elements of 5 % and agreed chemical composition, mechanical properties and delivery condition, is specified. Where the steel grade specified is
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