SVENSK STANDARD SS-EN ISO 24034:2005

Transcription

1 SVENSK STANDARD SS-EN ISO 24034:2005 Fastställd Utgåva 1 Tillsatsmaterial för svetsning Trådar och stavar för smältsvetsning av titan och titanlegeringar Indelning (ISO 24034:2005) Welding consumables Solid wires and rods for fusion welding of titanium and titanium alloys Classification (ISO 24034:2005) ICS Språk: engelska Publicerad: december 2005 Copyright SIS. Reproduction in any form without permission is prohibited.

2 Europastandarden EN ISO 24034:2005 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av EN ISO 24034:2005. The European Standard EN ISO 24034:2005 has the status of a Swedish Standard. This document contains the official English version of EN ISO 24034:2005. Upplysningar om sakinnehållet i standarden lämnas av SIS, Swedish Standards Institute, telefon Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och utländsk standard. Postadress: SIS Förlag AB, STOCKHOLM Telefon: Telefax: E-post: sis.sales@sis.se. Internet:

3 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO October 2005 ICS English Version Welding consumables - Solid wires and rods for fusion welding of titanium and titanium alloys - Classification (ISO 24034:2005) Produits consommables pour le soudage - Fils pleins et baguettes pleines pour le soudage par fusion du titane et des alliages de titane - Classification (ISO 24034:2005) Schweißzusätze - Massivdrähte und -stäbe zum Schmelzschweißen von Titan und Titanlegierungen - Einteilung (ISO 24034:2005) This European Standard was approved by CEN on 4 September 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. Up-to-date lists and bibliographical references concerning such national standards 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 translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 24034:2005: E

4 EN ISO 24034:2005 (E) Provläsningsexemplar / Preview Contents Page Foreword... iv Introduction... v 1 Scope Normative references Classification Symbols and requirements Mechanical properties Chemical analysis Retest Technical delivery conditions Designation... 6 Annex A (informative) Explanation of classification symbols for chemical composition... 7 iii

5 EN ISO 24034:2005 (E) Foreword This document (EN ISO 24034:2005) has been prepared by Technical Committee ISO/TC 44 "Welding and allied processes" in collaboration with Technical Committee CEN/TC 121 "Welding", the secretariat of which is held by DIN. 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 April 2006, and conflicting national standards shall be withdrawn at the latest by April According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 24034:2005 has been approved by CEN as EN ISO 24034:2005 without any modifications. iv

6 EN ISO 24034:2005 (E) Provläsningsexemplar / Preview Introduction This International Standard proposes a classification in order to designate wire electrodes, wires and rods in terms of their chemical composition. For titanium-welding consumables, there is no unique relationship between the product form (wire electrodes, wires or rods) and the welding process used (gas-shielded metal arc welding, gas tungsten arc welding, plasma arc welding or laser welding). For this reason, wire electrodes, wires and rods may be classified in terms of their chemical composition. In this International Standard, the symbol of the welding process is not used, because a) different joining processes are performed with the same chemical component consumable, and b) the producer is not able to determine the process symbol before shipping. Also, it should be noted that the mechanical properties of all-weld metal test specimens or welded joints produced by welding consumables will vary from those obtained in production joints because of differences in welding procedure and the base-metal alloy. For this reason, the mechanical properties of all-weld metal or welded joints for titanium-welding consumables are not specified in this classification. Requests for an official interpretation of technical aspects of this International Standard should be directed to the secretariat of ISO/TC 44/SC 3 via the user's member body in the user's country; a listing of these bodies can be found at v

7 EN ISO 24034:2005 (E) Welding consumables Solid wires and rods for fusion welding of titanium and titanium alloys Classification 1 Scope This International Standard specifies requirements for the classification of solid wires and rods for fusion welding of titanium and titanium alloys. The classification of the solid wires and rods is based on their chemical composition. For titanium-welding consumables, the compositions of the wire electrodes for the MIG process (metal inert gas welding) are the same as for the TIG process (tungsten inert-gas arc welding), the plasma arc process, the laser beam process, and other fusion welding processes. Therefore, the use of the word wires/rods in this classification refers to both wire electrodes and wires and rods in this International Standard. NOTE In this International Standard, the word titanium is used for titanium and titanium alloys. The classification of titanium wires/rods is based upon the chemical composition of the wires/rods. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 31-0:1992, Quantities and units Part 0: General principles ISO 544, Welding consumables Technical delivery conditions for welding filler materials Type of product, dimensions, tolerances and markings ISO 14344, Welding and allied processes Flux and gas shielded electrical welding processes Procurement guidelines for consumables 3 Classification The classification is divided into two parts: a) the first part gives a symbol indicating the product to be identified, see 4.1. b) the second part gives a symbol indicating the chemical composition of the wires/rods, see Table 1. 4 Symbols and requirements 4.1 Symbol for the product The symbol for the solid wire and rod shall be S. 1

8 EN ISO 24034:2005 (E) Provläsningsexemplar / Preview 4.2 Symbol for the chemical composition The numerical symbol in Table 1 indicates the chemical composition of a solid wire or rod, determined under the conditions given in Clause 6. The first two digits indicate the alloy group. See Annex A for an explanation of the numerical symbols. 4.3 Rounding-off procedure For the purpose of determining compliance with the requirements of this International Standard, the actual test values obtained shall be subjected to the rounding-off rules of ISO 31-0:1992, Annex B, Rule A. If the measured values are obtained by equipment calibrated in units other than those of this International Standard, the measured values shall be converted to the units of this International Standard before rounding off. If an average value is to be compared to the requirements of this International Standard, rounding off shall be done only after calculating the average. In the case where the testing standard cited in the normative references of this International Standard contains instructions for rounding off that conflict with the instructions of this International Standard, the rounding-off requirements of the testing standard shall apply. The rounded-off results shall fulfill the requirements of the appropriate table for the classification under test. 5 Mechanical properties Mechanical properties of all-weld metal or welded joints are not part of this classification. 6 Chemical analysis Chemical analysis shall be performed on specimens of the product or the stock from which it is made. See also footnote c to Table 1. Any analytical technique may be used but, in case of a dispute, reference shall be made to established published methods, agreed upon between the contracting parties. 7 Retest If any test fails to meet the requirement, that test shall be repeated twice. The results of both retests shall meet the requirement. Specimens for the retest may be taken from the original test sample or from a new test sample. For chemical analysis, retests need be only for those specific elements that failed to meet their test requirement. If the results of one or both retests fail to meet the requirement, the material under test shall be considered as not meeting the requirements of this specification for that classification. In the event that, during preparation or after completion of any test, it is clearly determined that prescribed or proper procedures were not followed in preparing the sample or test specimen(s), or in conducting the tests, the test shall be considered invalid, without considering whether the test was actually completed, or whether the test results met, or failed to meet, the requirement. That test shall be repeated, following proper prescribed procedures. In this case, the requirement for doubling the number of test specimens does not apply. 8 Technical delivery conditions Technical delivery conditions shall meet the requirements in ISO 544 and ISO