SIST EN 10305-6:2016
(Main)Steel tubes for precision applications - Technical delivery conditions - Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems
Steel tubes for precision applications - Technical delivery conditions - Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems
This Part of EN 10305 specifies the technical delivery conditions for welded cold drawn tubes of circular cross section for use in hydraulic and pneumatic power systems.
Tubes according to this Part of EN 10305 are characterized by having precisely defined tolerances on dimensions and a specified surface roughness.
The allowed pressure rates and upper temperatures are the responsibility of the customer in accordance with the state of the art and in application of the safety coefficients specified in the applicable regulations, codes or standards. Concerning the lower temperature range applicability the impact energy requirements are given at 0 °C.
NOTE Once this standard is published in the Official Journal of the European Union (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive are satisfied, needs to be done.
Präzisionsstahlrohre - Technische Lieferbedingungen - Teil 6: Geschweißte kaltgezogene Rohre für Hydraulik- und Pneumatik-Druckleitungen
Dieser Teil der EN 10305 enthält die technischen Lieferbedingungen für geschweißte kaltgezogene Präzisionsrohre mit kreisförmigem Querschnitt für die Anwendung in hydraulischen und pneumatischen Druckleitungssystemen.
Rohre nach diesem Teil der EN 10305 sind durch genau definierte Grenzabmaße und eine fest¬gelegte Oberflächenrauheit charakterisiert.
Die Beachtung der zulässigen Druckbeaufschlagung und Höchsttemperaturen nach dem Stand der Technik und unter Anwendung der in den entsprechenden Vorschriften, Regelwerken oder Normen festgelegten Sicherheitskoeffizienten liegt in der Verantwortung des Anwenders. Für die Anwendungen im unteren Temperaturbereich wurden Anforderungen an die Kerbschlagarbeit bei 0 °C festgelegt.
ANMERKUNG Nach Veröffentlichung dieser Norm im EU Amtsblatt (OJEU) unter der Richtlinie 97/23/EG ist die Annahme ihrer Konformität mit den grundlegenden Anforderungen (ESR) der Richtlinie 97/23/EG auf die technischen Daten von Werkstoffen in dieser Europäischen Norm beschränkt, und es darf nicht angenommen werden, dass damit die Eignung des Werkstoffs für ein bestimmtes Ausrüstungsteil festgestellt ist. Folglich müssen die in dieser Werkstoffnorm angegebenen technischen Parameter im Hinblick auf die konstruktiven Anforderungen dieses bestimmten Ausrüstungs¬teils ermittelt werden, um damit zu verifizieren, dass den ESR der Richtlinie 97/23/EG entsprochen wird.
Tubes de précision en acier - Conditions techniques de livraison - Partie 6 : Tubes soudés étirés à froid pour circuits hydrauliques et pneumatiques
La présente norme européenne spécifie les conditions techniques de livraison pour les tubes soudés en acier, étirés à froid, de section circulaire, utilisés dans les circuits hydrauliques et pneumatiques.
Les tubes conformes à la présente partie de l'EN 10305 se caractérisent par des tolérances dimensionnelles définies précisément et par une rugosité spécifiée.
Les taux de pression et les températures autorisés relèvent de la responsabilité du client conformément aux règles de l'art et en application des coefficients de sécurité spécifiés dans les réglementations, codes ou normes applicables. Pour la plage de basse température applicable les exigences concernant l’énergie de choc sont données à une température de 0°C.
NOTE Lorsque cette norme sera publiée dans le Journal Officiel de l’Union Européenne (JOUE) sous la Directive 2014/68/EU la présomption de conformité aux exigences essentielles de sécurité (EES) est limitée aux données techniques concernant les matériaux, et ne présume pas de l’adéquation du matériau avec un composant particulier de l’équipement. En conséquence, la vérification des données techniques figurant dans la norme au regard des exigences de conception applicables à ce composant particulier de l’équipement, pour vérifier que les EES de la Directive Equipements sous Pression, doit être faite.
Jeklene cevi za precizno uporabo - Tehnični dobavni pogoji - 6. del: Hladno vlečene varjene cevi za hidravlične in pnevmatične tlačne vode
Ta del standarda EN 10305 določa tehnične dobavne pogoje za hladno vlečene varjene cevi s krožnim prečnim prerezom za uporabo v hidravličnih in pnevmatičnih tlačnih vodih.
Cevi v skladu s tem delom standarda EN 10305 imajo natančno opredeljene tolerance za mere in določeno največjo površinsko hrapavost.
Za dovoljene ravni tlaka in najvišje temperature je odgovorna stranka v skladu s stanjem tehnike in ob uporabi varnostnih koeficientov, določenih v veljavnih predpisih, kodeksih ali standardih. Kar zadeva ustreznost razpona nižjih temperatur, so zahteve glede udarne moči podane pri 0 °C.
OPOMBA: Ko bo ta standard objavljen v Uradnem listu Evropske unije (OJEU) v okviru Direktive 97/23/ES, bodo zagotovila o skladnosti z osnovnimi varnostnimi zahtevami (ESR) Direktive 97/23/ES omejena na tehnične podatke o materialih, navedene v tem evropskem standardu, standard pa ne bo zagotavljal ustreznosti materiala za določen element opreme. Zato bo potrebno oceniti tehnične podatke, podane v tem standardu za materiale, glede na zahteve zasnove določenega elementa opreme, da se zagotovi, da so izpolnjene osnovne varnostne zahteve Direktive o tlačni opremi.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Präzisionsstahlrohre - Technische Lieferbedingungen - Teil 6: Geschweißte kaltgezogene Rohre für Hydraulik- und Pneumatik-DruckleitungenTubes de précision en acier - Conditions techniques de livraison - Partie 6 : Tubes soudés étirés à froid pour circuits hydrauliques et pneumatiquesSteel tubes for precision applications - Technical delivery conditions - Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific useICS:Ta slovenski standard je istoveten z:EN 10305-6:2016SIST EN 10305-6:2016en,fr,de01-oktober-2016SIST EN 10305-6:2016SLOVENSKI
STANDARDSIST EN 10305-6:20051DGRPHãþD
SIST EN 10305-6:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10305-6
March
t r s x ICS
y yä s v rä y w Supersedes EN
s r u r wæ xã t r r wEnglish Version
Steel tubes for precision applications æ Technical delivery conditions æ Part
xã Welded cold drawn tubes for hydraulic and pneumatic power systems Tubes de prßcision en acier æ Conditions techniques de livraison æ Partie
x ã Tubes soudßs ßtirßs à froid pour circuits hydrauliques et pneumatiques
Präzisionsstahlrohre æ Technische Lieferbedingungen æTeil
xã Geschweißte kaltgezogene Rohre für Hydraulikæund PneumatikæDruckleitungen 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
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
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 xã t r s x ESIST EN 10305-6:2016
EN 10305-6:2016 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 5 4 Symbols . 6 5 Classification and designation . 6 5.1 Classification . 6 5.2 Designation. 6 6 Information to be supplied by the purchaser . 6 6.1 Mandatory information . 6 6.2 Options . 6 6.3 Example of an order . 7 7 Manufacturing process . 7 7.1 Steelmaking process . 7 7.2 Tube manufacture and delivery conditions . 7 8 Requirements . 8 8.1 General . 8 8.2 Chemical composition . 8 8.3 Mechanical properties . 9 8.4 Appearance and soundness . 9 8.5 Dimensions and tolerances . 10 9 Inspection . 14 9.1 Type of inspection . 14 9.2 Inspection documents . 14 9.3 Summary of inspection and testing . 15 10 Sampling . 15 10.1 Test unit . 15 10.2 Preparation of samples and test pieces . 16 11 Test methods . 16 11.1 Tensile test . 16 11.2 Drift expanding test . 16 11.3 Dimensional inspection . 17 11.4 Roughness measurement . 17 11.5 Visual examination . 17 11.6 Non-destructive testing. 17 11.7 Retests, sorting and reprocessing . 18 12 Marking . 18 13 Protection and packaging . 18 13.1 Protection . 18 13.2 Packaging . 18 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of Directive 2014/68/EU aimed to be covered . 19 Bibliography . 20
SIST EN 10305-6:2016
EN 10305-6:2016 (E) 3 European foreword This document (EN 10305-6:2016) has been prepared by Technical Committee ECISS/TC 110 “Steel tubes and iron and steel fittings”, the secretariat of which is held by UNI. 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 September 2016 and conflicting national standards shall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10305-6:2005. In comparison with the previous edition, the following technical changes have been made: a) References were adapted; b) The options were renumbered in such a way that now throughout all parts the number of options are the same; c) Precision tubes will now be preferably ordered according to outer diameter and wall thickness; d) The drift expanding test is now beside the tensile test the second test for the verification of the mechanical properties; e) Editorial updates. 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 Directive 2014/68/EU. For relationship with Directive 2014/68/EU, see informative Annex ZA, which is an integral part of this document. EN 10305, Steel tubes for precision applications - Technical delivery conditions consists of the following parts: — Part 1: Seamless cold drawn tubes — Part 2: Welded cold drawn tubes — Part 3: Welded cold sized tubes — Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems — Part 5: Welded cold sized square and rectangular tubes — Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom. SIST EN 10305-6:2016
EN 10305-6:2016 (E) 4 1 Scope This European Standard specifies the technical delivery conditions for welded cold drawn tubes of circular cross section for use in hydraulic and pneumatic power systems. Tubes according to this part of EN 10305 are characterized by having precisely defined tolerances on dimensions and a specified surface roughness. The allowed pressure rates and upper temperatures are the responsibility of the customer in accordance with the state of the art and in application of the safety coefficients specified in the applicable regulations, codes or standards. Concerning the lower temperature range applicability the impact energy requirements are given at 0 °C. NOTE Once this standard is published in the Official Journal of the European Union (OJEU) under Directive 2014/68/EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive are satisfied, needs to be done. 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 10168:2004, Steel products - Inspection documents - List of information and description EN 10204:2004, 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 377:2013) 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)
SIST EN 10305-6:2016
EN 10305-6:2016 (E) 5 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) 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 10893-10, 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) ISO 11484:2009, Steel products - Employer's qualification system for non-destructive testing (NDT) personnel 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10021:2006, EN 10052:1993, EN 10266:2003 and the following apply. 3.1 employer organization for which a person works on a regular basis Note 1 to entry: The employer can be either the tube manufacturer or a third party organization providing services, such as non-destructive testing (NDT). 3.2 manufacturer party to produce and to deliver tubes in accordance with this document Note 1 to entry: Where tubes are delivered by an intermediary, see EN 10021:2006, Clause 6. 3.3 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. SIST EN 10305-6:2016
EN 10305-6:2016 (E) 6 4 Symbols For the purposes of this part of EN 10305, the symbols given in EN 10266:2003 and the following apply. C1, C2 category conformity indicators (see 7.2.2 and 7.2.3) 5 Classification and designation 5.1 Classification In accordance with the classification system in EN 10020, the steel grades given in Table 1 are non-alloy quality steels. 5.2 Designation For the tubes covered by this document, the steel designation consists of the number of this document (EN 10305-6) plus either: a) the steel name in accordance with EN 10027-1; or b) the steel number in accordance with EN 10027-2. 6 Information to be supplied by the purchaser 6.1 Mandatory information The following information shall be obtained by the manufacturer at the time of enquiry and order: a) quantity (mass or total length or number); b) term “tube”; c) dimensions, preferably by outside diameter D and wall thickness T (or other pair of dimensions), (see 8.5.1.1 and Table 4); d) steel designation (see 5.2); e) type of tube length (see 8.5.2); f) type of inspection certificate (see 9.1). 6.2 Options A number of options are specified in this document and these are listed below. In the event that the purchaser does not indicate his wish to implement any of these options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 6.1).
Option 7: Reduced internal roughness of
¶ 2 8.4.3);
Option 8: Measurement of surface roughness (see 8.4.4);
Option 12: Non-destructive testing for the detection of longitudinal imperfections (see 8.4.7);
Option 21: another specified length and/or tolerance (see 8.5.2);
Option 22: Reduced maximum deviation from straightness (see 8.5.3); SIST EN 10305-6:2016
EN 10305-6:2016 (E) 7
Option 24: higher test pressure for hydrostatic test (see 11.6.2);
Option 28: alternative marking (see Clause 12);
Option 31: protection by phosphatization (see 13.1);
Option 32: protection by electrolytical zinc coating (see 13.1);
Option 37: protection of tube ends (see 13.1);
Option 38: unbundled tubes or specific method of packaging (see 13.2). 6.3 Example of an order 1 000 tubes with an outside diameter of D = 20 mm and a specified wall thickness of T = 2,5 mm in accordance with this document, made of steel grade E235, delivered in standard lengths with an inspection certificate 3.1 in accordance with EN 10204:2004: 1 000 tubes – D 20 x T 2,5 – EN 10305-6 – E235 – standard length – inspection certificate 3.1 7 Manufacturing process 7.1 Steelmaking process The steel making 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 tubes by cold drawing. Other suitable methods of cold working are permitted. The tubes shall be delivered in the delivery condition +N, which means that after final cold drawing (or other processing) the tubes are normalized in a controlled atmosphere. 7.2.2 Welding shall be carried out by suitably qualified personnel according to suitable operating procedures. For tube to be used for pressure equipment in categories II, III, and IV (of Directive 2014/68/EU), the operating procedures and the personnel shall be approved by a competent third-party. Tubes not processed according to this requirement shall be marked “C 1”. 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 11484:2009 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. SIST EN 10305-6:2016
EN 10305-6:2016 (E) 8 NOTE The definition of level 1, 2 and 3 can be found in the appropriate standards, e.g. EN ISO 9712 and ISO 11484:2009. For tubes to be used for pressure equipment in categories III and IV (of Directive 2014/68/EU) the NDT personnel shall be approved by a recognized third-party organiza
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Präzisionsstahlrohre - Technische Lieferbedingungen - Teil 6: Geschweißte kaltgezogene Rohre für Hydraulik- und Pneumatik-DruckleitungenTubes de précision en acier - Conditions techniques de livraison - Partie 6 : Tubes soudés étirés à froid pour circuits hydrauliques et pneumatiquesSteel tubes for precision applications - Technical delivery conditions - Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific useICS:Ta slovenski standard je istoveten z:FprEN 10305-6 revkSIST FprEN 10305-6:2015en,fr,de01-november-2015kSIST FprEN 10305-6:2015SLOVENSKI
STANDARD
kSIST FprEN 10305-6:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 10305-6
July 2015 ICS 77.140.75 Will supersede EN 10305-6:2005English Version
Steel tubes for precision applications - Technical delivery conditions - Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems
Tubes de précision en acier - Conditions techniques de livraison - Partie 6 : Tubes soudés étirés à froid pour circuitshydrauliques et pneumatiques
Präzisionsstahlrohre - Technische Lieferbedingungen - Teil 6: Geschweißte kaltgezogene Rohre für Hydraulik- und Pneumatik-Druckleitungen This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee ECISS/TC 110.
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 © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 10305-6:2015 EkSIST FprEN 10305-6:2015
FprEN 10305-6:2015 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .5 4 Symbols .5 5 Classification and designation .6 5.1 Classification .6 5.2 Designation .6 6 Information to be supplied by the purchaser .6 6.1 Mandatory information .6 6.2 Options .6 6.3 Example of an order .7 7 Manufacturing process .7 7.1 Steelmaking process .7 7.2 Tube manufacture and delivery conditions .7 8 Requirements .8 8.1 General .8 8.2 Chemical composition .8 8.3 Mechanical properties .9 8.4 Appearance and soundness .9 8.5 Dimensions and tolerances . 10 9 Inspection . 14 9.1 Type of inspection . 14 9.2 Inspection documents . 14 9.3 Type of inspection documents . 14 9.4 Summary of inspection and testing . 15 10 Sampling . 15 10.1 Test unit . 15 10.2 Preparation of samples and test pieces . 16 11 Test methods . 16 11.1 Tensile test . 16 11.2 Drift expanding test . 16 11.3 Dimensional inspection . 17 11.4 Roughness measurement . 17 11.5 Visual examination . 17 11.6 Non-destructive testing . 17 11.7 Retests, sorting and reprocessing . 18 12 Marking . 18 13 Protection and packaging . 18 13.1 Protection . 18 13.2 Packaging . 19 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 20 Bibliography . 21
kSIST FprEN 10305-6:2015
FprEN 10305-6:2015 (E) 3 Foreword This document (FprEN 10305-6:2015) has been prepared by Technical Committee ECISS/TC 110 “Steel tubes and iron and steel fittings”, the secretariat of which is held by UNI. This document is currently submitted to the Unique Acceptance Procedure. This document will supersede EN 10305-6:2005. 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 Directive 97/23/EC. For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. EN 10305, Steel tubes for precision applications — Technical delivery conditions, consists of the following parts: — Part 1: Seamless cold drawn tubes; — Part 2: Welded cold drawn tubes; — Part 3: Welded cold sized tubes; — Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems; — Part 5: Welded cold sized square and rectangular tubes; — Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems. kSIST FprEN 10305-6:2015
FprEN 10305-6:2015 (E) 4 1 Scope This Part of EN 10305 specifies the technical delivery conditions for welded cold drawn tubes of circular cross section for use in hydraulic and pneumatic power systems. Tubes according to this Part of EN 10305 are characterized by having precisely defined tolerances on dimensions and a specified surface roughness. The allowed pressure rates and upper temperatures are the responsibility of the customer in accordance with the state of the art and in application of the safety coefficients specified in the applicable regulations, codes or standards. Concerning the lower temperature range applicability the impact energy requirements are given at 0 °C. NOTE Once this standard is published in the Official Journal of the European Union (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive are satisfied, needs to be done. 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 10204:2004, 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 8493, Metallic materials — Tube — Drift-expanding test (ISO 8493) kSIST FprEN 10305-6:2015
FprEN 10305-6:2015 (E) 5 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) 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 10893-10, 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) ISO 11484, Steel products — Employer's qualification system for non-destructive testing (NDT) personnel 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10021:2006, EN 10052:1993, EN 10266:2003 and the following apply. 3.1 employer organization for which a person works on a regular basis Note 1 to entry: The employer can be either the tube manufacturer or a third party organization providing services, such as non-destructive testing (NDT). 3.2 manufacturer party to produce and to deliver tubes in accordance with this document Note 1 to entry: Where tubes are delivered by an intermediary, see EN 10021:2006, Clause 6. 3.3 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. 4 Symbols For the purposes of this Part of EN 10305 the symbols given in EN 10266:2003 and the following apply. C1, C2 category conformity indicators (see 7.2.2 and 7.2.3) kSIST FprEN 10305-6:2015
FprEN 10305-6:2015 (E) 6 5 Classification and designation 5.1 Classification In accordance with the classification system in EN 10020, the steel grades given in Table 1 are non-alloy quality steels. 5.2 Designation For the tubes covered by this document, the steel designation consists of the number of this document (EN 10305-6) plus either: a) the steel name in accordance with EN 10027-1; or b) the steel number in accordance with EN 10027-2. 6 Information to be supplied by the purchaser 6.1 Mandatory information The following information shall be obtained by the manufacturer at the time of enquiry and order: a) quantity (mass or total length or number); b) term “tube”; c) dimensions, preferably by outside diameter D and wall thickness T (or other pair of dimensions), (see 8.5.1.1 and Table 4); d) steel designation (see 5.2); e) type of tube length (see 8.5.2); f) type of inspection certificate (see 9.1). 6.2 Options A number of options are specified in this document and these are listed below. In the event that the purchaser does not indicate his wish to implement any of these options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 6.1). • Option 7: Reduced internal roughness of ≤ 2 8.4.3); • Option 8: Measurement of surface roughness (see 8.4.4); • Option 12: Non-destructive testing for the detection of longitudinal imperfections (see 8.4.7); • Option 21: another specified length and/or tolerance (see 8.5.2); • Option 22: Reduced maximum deviation from straightness (see 8.5.3); • Option 24: higher test pressure for hydrostatic test (see 11.6.2); • Option 28: alternative marking (see Clause 12); • Option 31: protection by phosphatization (see 13.1); kSIST FprEN 10305-6:2015
FprEN 10305-6:2015 (E) 7 • Option 32: protection by electrolytical zinc coating (see 13.1); • Option 37: protection of tube ends (see 13.1); • Option 38: unbundled tubes or specific method of packaging (see 13.2). 6.3 Example of an order 1 000 tubes with an outside diameter of D = 20 mm and a specified wall thickness of T = 2,5 mm in accordance with this document, made of steel grade E235, delivered in standard lengths with an inspection certificate 3.1: 1 000 tubes – D 20 x T 2,5 - EN 10305-6 — E235 in standard lengths – inspection certificate 3.1 7 Manufacturing process 7.1 Steelmaking process The steel making 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 tubes by cold drawing. Other suitable methods of cold working are permitted. The tubes shall be delivered in the delivery condition +N, which means that after final cold drawing (or other processing) the tubes are normalized in a controlled atmosphere. 7.2.2 Welding shall be carried out by suitably qualified personnel according to suitable operating procedures. For tube to be used for pressure equipment in categories II, III, and IV (of Directive 97/23/EC), the operating procedures and the personnel shall be approved by a competent third-party. Tubes not processed according to this requirement shall be marked “C 1”. 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 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 level 1, 2 and 3 can be found in the appropriate standards, e.g. ISO 9712 and ISO 11484. For tubes to be used for pressure equipment in categories III and IV (of Directive 97/23/EC) the NDT personnel shall be approved by a recognized third-party organization. Tubes not processed according to this requirement shall be marked “C 2”, unless a requirement to mark “C 1” (see 7.2.2) applies. kSIST FprEN 10305-6:2015
FprEN 10305-6:2015 (E) 8 8 Requirements 8.1 General The tubes, when inspected in accordance with Clauses 9, 10 and 11, shall comply with the requirements of this part of EN 10305. In addition, the general technical delivery requirements specified in EN 10021 shall apply. 8.2 Chemical composition The cast analysis reported by the steel
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