SIST EN 10305-4:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Steel tubes for precision applications - Technical delivery conditions - Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systemsHOTubes de précision en acier - Conditions techniques de livraison - Partie 4 : Tubes sans soudure étirés a froid pour circuits hydrauliques et pneumatiquesPräzisionsstahlrohre - Technische Lieferbedingungen - Teil 4: Nahtlose kaltgezogene Rohre für Hydraulik- und Pneumatik-DruckleitungenTa slovenski standard je istoveten z:EN 10305-4:2003SIST EN 10305-4:2003en77.140.75ICS:SLOVENSKI
STANDARDSIST EN 10305-4:200301-november-2003







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10305-4April 2003ICS 77.140.75English versionSteel tubes for precision applications - Technical deliveryconditions - Part 4: Seamless cold drawn tubes for hydraulic andpneumatic power systemsTubes en acier pour applications de précision - Conditionstechniques de livraison - Tubes sans soudure étirés à froidpour circuits hydrauliques et pneumatiquesPräzisionsstahlrohre - Technische Lieferbedingungen - Teil4: Nahtlose kaltgezone Rohre für Hydraulik- undPneumatik-DruckleitungenThis European Standard was approved by CEN on 28 February 2003.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 Management Centre 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10305-4:2003 E



EN 10305-4:2003 (E)2ContentspageForeword.41Scope.52Normative references.53Terms and definitions.64Symbols.65Classification and designation.65.1Classification.65.2Designation.66Information to be supplied by the purchaser.66.1Mandatory information.66.2Options.76.3Example of an order.77Manufacturing process.77.1Steelmaking process.77.2Tube manufacture and delivery conditions.78Requirements.88.1General.88.2Chemical composition.88.3Mechanical properties.98.4Appearance and soundness.98.4.1Appearance.98.4.2Internal soundness.108.5Dimensions and tolerances.108.5.1Outside diameter, inside diameter and wall thickness.108.5.2Lengths.108.5.3Straightness.148.5.4Preparation of ends.149Inspection.149.1Type of inspection.149.2Inspection documents.159.2.1Type of inspection documents.159.2.2Content of inspection documents.159.3Summary of inspection and testing.1510Sampling.1610.1Test unit.1610.2Preparation of samples and test pieces.1610.2.1General.1611Test methods.1611.1Tensile test.1611.2Flattening test.1711.3Drift expanding test.1711.4Dimensional inspection.1711.5Visual examination.1811.6Leak tightness test.1811.7Retests, sorting and reprocessing.1812Marking.18



EN 10305-4:2003 (E)313Protection and packaging.1813.1Protection.1813.2Packaging.19Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.20Bibliography.21



EN 10305-4:2003 (E)4ForewordThis document (EN 10305-4:2003) has been prepared by Technical Committee ECISS/TC 29, "Steel tubes andfittings for steel tubes", 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 orby endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latestby October 2003.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.This document includes a Bibliography.EN 10305 consists of the following parts under the general title Steel tubes for precision applications - Technicaldelivery conditions :¾ Part 1 : Seamless cold drawn tubes¾ Part 2 : Welded cold drawn tubes¾ Part 3 : Welded cold sized tubes¾ Part 4 : Seamless cold drawn tubes for hydraulic and pneumatic power systems¾ Part 5 : Welded and cold sized square and rectangular tubes¾ Part 6 : Welded cold drawn tubes for hydraulic and pneumatic power systemsAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.



EN 10305-4:2003 (E)51 ScopeThis part of this European Standard specifies the technical delivery conditions for seamless cold drawn steel tubesof circular cross section used in hydraulic and pneumatic power systems.Tubes according to this part of this European Standard are characterised by having precisely defined tolerances ondimensions and a specified surface roughness.The allowed pressure rates and temperatures are the responsibility of the customer in accordance with the state ofthe art and in application of the safety coefficients specified in the applicable regulations, codes or standards.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test at ambient temperature.EN 10020, Definition and classification of grades of steel.EN 10021, General technical delivery requirements for steel and iron products.EN 10027-1, Designation systems for steel — Part 1: Steel names, principal symbols.EN 10027-2, Designation systems for steel — Part 2: Numerical system.EN 10052, Vocabulary of heat treatment terms for ferrous products.prEN 101681), Steel products — Inspection documents — List of information and description.EN 10204, Metallic products — Types of inspection documents.EN 10233, Metallic materials — Tube — Flattening test.EN 10234, Metallic materials — Tube — Drift expanding test.EN 10246-1, Non-destructive testing of steel tubes — Part 1: Automatic electromagnetic testing of seamless andwelded (except submerged arc-welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness.EN 10256, Non-destructive testing of steel tubes — Qualification and competence of level 1 and 2non-destructive testing personnel.prEN 102661), Steel tubes, fittings and structural hollow sections — Symbols and definition of terms for use inproduct standards.EN ISO 377, Steel and steel products — Location and preparation of samples and test pieces for mechanicaltesting (ISO 377:1997).EN ISO 2566-1, Steel — Conversion of elongation values — Part 1: Carbon and low alloy steels(ISO 2566-1:1984).
1)In preparation, until this document is published as a European Standard a corresponding national standard should beagreed at the time of enquiry and order.



EN 10305-4:2003 (E)6CR 10260, Designation system for steel — Additional symbols.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 10020, EN 10021, EN 10052and prEN 10266 and the following apply.3.1employerorganization for which a person works on a regular basisNOTEThe employer can be either the tube manufacturer or a third party organization providing non-destructive testing(NDT) services.4 SymbolsSee prEN 10266.5 Classification and designation5.1 ClassificationIn accordance with the classification system in EN 10020 the steel grades given in Table 1 are non-alloy qualitysteels.5.2 DesignationFor the tubes covered by this part of EN 10305 the steel designation consists of :¾ the number of this part of EN 10305 ;plus either :¾ the steel name in accordance with EN 10027-1 and CR 10260 ; or¾ the steel number in accordance with EN 10027-2.6 Information to be supplied by the purchaser6.1 Mandatory informationThe following information shall be supplied by the purchaser at the time of enquiry and order :a) the quantity (mass or total length or number) ;b) the term "tube" ;c) the dimensions (outside diameter and inside diameter or other pair of dimensions) (see 8.5.1.1 and Table 4) ;d) the designation of the steel grade in accordance with this part of EN 10305 (see 5.2) ;e) the type of tube length (see 8.5.2) ;



EN 10305-4:2003 (E)7f) the type of inspection (see 9.1).6.2 OptionsA number of options are specified in this part of EN 10305 and these are listed below. In the event that thepurchaser does not indicate his wish to implement any of these options at the time of enquiry and order, the tubesshall be supplied in accordance with the basic specification (see 6.1).1:reduced internal roughness of £ 2 mm (see 8.4.1.5) ;2:lengths other than 6 m (see 8.5.2) ;3:alternative marking (see clause 12) ;4:protection by phosphatization (see 13.1) ;5:protection by galvanization and chromatization type blue-white (see 13.1) ;6:protection by galvanization and chromatization type yellow (see 13.1) ;7:protection by galvanization and chr
...