EN 10305-2:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Präzisionsstahlrohre - Technische Lieferbedingungen - Teil 2: Geschweißte kaltgezogene RohreTubes de précision en acier - Conditions techniques de livraison - Partie 2 : Tubes soudés étirés à froidSteel tubes for precision applications - Technical delivery conditions - Part 2: Welded cold drawn tubes77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific useICS:Ta slovenski standard je istoveten z:EN 10305-2:2016SIST EN 10305-2:2016en,fr,de01-oktober-2016SIST EN 10305-2:2016SLOVENSKI
STANDARDSIST EN 10305-2:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10305-2
March
t r s x ICS
y yä s v rä y w Supersedes EN
s r u r wæ tã t r s rEnglish Version
Steel tubes for precision applications æ Technical delivery conditions æ Part
tã Welded cold drawn tubes Tubes de prßcision en acier æ Conditions techniques de livraison æ Partie
t ã Tubes soudßs ßtirßs à froid
Präzisionsstahlrohre æ Technische Lieferbedingungen æTeil
tã Geschweißte kaltgezogene 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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CEN-CENELEC Management Centre:
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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 tã t r s x ESIST EN 10305-2:2016

¶ 150 mm. This document may also be applied to other types 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 automotive, 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 377) 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 10305-2:2016

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 8: measurement of surface roughness (see 8.4.3);
Option 9: specific surface roughness (see 8.4.3);
Option 10: tube surfaces free from not easily removable substances (see 8.4.6);
Option 12: non-destructive testing for the detection of longitudinal imperfections (see 8.4.7); SIST EN 10305-2:2016

Option 13: non-destructive testing for verification of leak-tightness (see 8.4.7);
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 tolerances (see 8.5.1.2);
Option 18: reduced eccentricity (see 8.5.1.3);
Option 19: reduced wall thickness tolerance (see 8.5.1.4);
Option 20: unilateral wall thickness tolerance (see 8.5.1.4);
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 8);
Option 26: test unit with tubes from one cast only (see 10.1);
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 = 60 mm and an inside diameter of d = 56 mm in accordance with this document, made of steel grade E235 in the normalized condition, delivered in random lengths, with a 3.1 inspection certificate in accordance with EN 10204: 12 000 m tube – D 60 x d 56 – EN 10305-2 – E235+N – random length – inspection certificate 3.1 7 Manufacturing process 7.1 Steelmaking process The steelmaking process is at the discretion of the manufacturer with the exception that the open hearth (Siemens-Martin) process shall not be employed unless in combination with a secondary steelmaking or ladle refining process. Steels shall be fully killed. NOTE This excludes the use of rimming, balanced or semi-killed steel. 7.2 Tube manufacture and delivery conditions 7.2.1 The tubes shall be manufactured from electric welded hollows by cold drawing. The tubes shall not contain strip end welds. 7.2.2 The tubes shall be supplied in one of the delivery conditions given in Table 1. SIST EN 10305-2:2016

· 0,020. Option 3: The composition of the specified steel grade shall be such that it is suitable for hot-dip galvanizing (see e.g. EN ISO 1461 or EN ISO 14713-2 for guidance). Table 3 specifies the permissible deviation of product analysis from the specified limits on cast analysis given in Table 2. Table 3 — Permiss
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