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1、 Reference number ISO 1071:2003(E) ISO 2003 INTERNATIONAL STANDARD ISO 1071 Second edition 2003-07-01 Welding consumables Covered electrodes, wires, rods and tubular cored electrodes for fusion welding of cast iron Classification Produits consommables pour le soudage lectrodes enrobs, fils dapport,
2、baguettes et fils fourrs pour le soudage par fusion de la fonte Classification ISO 1071:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded
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5、elating to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, w
6、ithout permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2003 All
7、rights reserved -,-,- ISO 1071:2003(E) ISO 2003 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO tech
8、nical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
9、 with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft I
10、nternational Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document
11、 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1071 was prepared by the European Committee for Standardization (CEN) in collaboration with Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 3, Weldi
12、ng consumables, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Throughout the text of this document, read “.this European Standard.“ to mean “.this International Standard.“. This second edition cancels and replaces the first edition (ISO 1071:1983),
13、 which has been technically revised. ISO 1071:2003(E) iv ISO 2003 All rights reserved Contents page Foreword v Introduction . vi 1Scope 1 2Normative references . 1 3Classification. 2 4Symbols and requirements 2 4.1Symbols for the product form 2 4.2Symbol for the type of alloy. 3 4.3Symbol for the ch
14、emical composition 3 4.4Symbol for shielding gas ( tubular cored electrode). 5 4.5Symbols for effective electrode efficiency and type of current (covered electrode). 7 5Mechanical tests 7 6Chemical analysis. 7 7Retests . 7 8Technical delivery conditions 8 9Designation 8 Annex A (informative) Descrip
15、tion of the consumable. 9 Annex B (informative) Expected minimum values for strength and elongation of dissimilar all-weld metal in tensile test. 12 Annex ZA (informative) International Standards corresponding to the European Standards given in the text 13 Bibliography 14 -,-,- ISO 1071:2003(E) ISO
16、2003 All rights reserved v Foreword This document (EN ISO 1071:2003) has been prepared by Technical Committee CEN/TC 121 “Welding“, the secretariat of which is held by DS in collaboration with Technical Committee ISO/TC 44 “Welding and allied processes“. Annexes A, B and ZA are informative. This Eur
17、opean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2004, and conflicting national standards shall be withdrawn at the latest by January 2004. According to the CEN/CENELEC Internal Regulations, the na
18、tional standards organizations of the following countries 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, Switzerla
19、nd and the United Kingdom. -,-,- ISO 1071:2003(E) vi ISO 2003 All rights reserved Introduction This European Standard classifies welding consumables for fusion welding of various types of unalloyed cast irons, e.g.: grey cast irons with lamellar graphite according to EN 1561; malleable cast irons ac
20、cording to EN 1562; spheroidal graphite cast irons according to EN 1563; ductile iron pipes, fittings, accessories and their joints for water pipelines Requirements and test methods according to EN 545; ductile iron pipes, fittings, accessories and their joints for gas pipelines Requirements and tes
21、t methods according to EN 969. Applications for welding consumables classified to this standard: production welding, that means welding of cast materials during the process of production. In that way the quality of the casting shall be ensured according to the guaranteed properties and to the requir
22、ements of the application; repair welding of castings which are damaged during service; welding for construction purposes, where cast irons are joined to themselves or to other ferrous or non-ferrous metals. Two different methods are used for the welding of cast irons: using a welding consumable whi
23、ch produces a weld metal similar to the parent metal. High preheating is required (typical temperature range 550 C to 650 C); using a welding consumable which produces a weld metal dissimilar to the parent metal. No or only low preheating is required. This standard contains the different types of we
24、lding consumables because the chemical composition of welding rods and wire electrodes as well as the all-weld metal of the corresponding covered electrodes and tubular cored electrodes is similar. Additionally to the welding consumables specified in this standard, consumables classified to other st
25、andards can be used (see annex A). ISO 1071:2003(E) ISO 2003 All rights reserved 1 1 Scope This European Standard specifies requirements for classification of covered electrodes for manual metal arc welding, wire electrodes for metal arc welding, tubular cored electrodes for metal arc welding with a
26、nd without a gas shield, rods for TIG-welding and rods for oxyfuel gas welding of unalloyed cast irons. Classification is based on the chemical composition of wires and rods and on the all-weld metal deposit for tubular cored and covered electrodes. 2 Normative references This European Standard inco
27、rporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this Eu
28、ropean Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 439, Welding consumables - Shielding gases for arc welding and cutting. EN 545, Ductile iron pipes, fittings, accessories
29、 and their joints for water pipelines - Requirements and test methods. EN 969, Ductile iron pipes, fittings accessories and their joints for gas pipelines - Requirements and test methods. EN 1561, Founding - Grey cast irons. EN 1562, Founding Malleable cast irons. EN 1563, Founding Spheroidal graphi
30、te cast irons. EN 1564, Founding Austempered ductile cast irons. EN 22401, Covered electrodes - Determination of the efficiency, metal recovery and deposition coefficient (ISO 2401:1972). EN ISO 6847, Welding consumables - Deposition of a weld metal pad for chemical analysis (ISO 6847:2000). prEN IS
31、O 544, Welding consumables - Technical delivery conditions for welding filler metals - Type of product, dimensions, tolerances and markings (ISO/FDIS 544:2000). ISO 31-0:1992, Quantities and units - Part 0: General principles. -,-,- ISO 1071:2003(E) 2 ISO 2003 All rights reserved 3 Classification 3.
32、1 A wire electrode and a rod are classified according to chemical composition in Tables 2 and 3. The classification is divided in three parts: a) the first part gives a symbol indicating the product to be identified; b) the second part indicates the type of alloy (C for cast iron); c) the third part
33、 gives a symbol indicating the chemical composition of the wire electrode or of the rod. 3.2 A tubular cored electrode is classified according to the all-weld metal chemical composition produced with an appropriate shielding gas. The classification is divided into four parts: a) the first part gives
34、 a symbol indicating the product to be identified; b) the second part indicates the type of alloy (C for cast iron); c) the third part gives a symbol indicating the chemical composition of the all-weld metal; d) the fourth part gives a symbol indicating the shielding gas. 3.3 Covered electrodes are
35、classified according to the all-weld metal chemical composition. The classification is based on the electrode diameter 4 mm. The classification is divided into four parts: a) the first part gives a symbol indicating the product to be identified; b) the second part indicates the type of alloy (C for
36、cast iron); c) the third part gives a symbol indicating the chemical composition of the all-weld metal; d) the fourth part gives a symbol indicating the effective electrode efficiency and the type of current. 3.4 In order to facilitate the use of this standard, the classification of tubular cored an
37、d covered electrodes is split into two sections: a) compulsory section; this section includes the symbols for the type of product, type of alloy, the chemical composition and the shielding gas, i.e. the symbols defined in 4.1, 4.2, 4.3 and 4.4. b) optional section; this section includes the symbol f
38、or the effective electrode efficiency and type of current and the welding positions for which the consumable is suitable, i.e. the symbols defined in 4.5. The full designation (see clause 9) shall be used on packages and in the manufacturers literature and data sheets. 4 Symbols and requirements 4.1
39、 Symbols for the product form The symbol for the covered electrode shall be the letter E. The symbol for the solid wire and rod shall be the letter S and the symbol for the tubular cored wire shall be T. The symbol for the cast rod shall be R. -,-,- ISO 1071:2003(E) ISO 2003 All rights reserved 3 4.
40、2 Symbol for the type of alloy The symbol C as the second symbol shall be used to indicate the welding of cast iron as the main application. 4.3 Symbol for the chemical composition 4.3.1General The symbols in Tables 2 and 3 indicate the chemical composition of rods and wire electrodes as well as the
41、 chemical composition of the all-weld metal of covered electrodes and tubular cored electrodes in accordance with clause 6. A distinction has to be made between similar and dissimilar consumable according to the chemical composition of the weld metal. 4.3.2Consumables producing similar weld metal Th
42、e consumables of this group are classified according to the alloy type in Table 1. The symbols in Table 2 indicate the chemical composition of similar rods and similar all-weld metal of covered electrodes and tubular cored electrodes. The description of each consumable and examples for application a
43、re given in annex A. Table 1 Welding consumables producing weld metal similar to parent metal SymbolMicrostructureProduct form a FeC-1 blamellar graphiteE, R FeC-2 clamellar graphiteE, T FeC-3lamellar graphiteE, T FeC-4lamellar graphiteR FeC-5lamellar graphiteR FeC-GFferritic microstructure, spheroi
44、dal graphiteE, T FeC-GP1pearlitic microstructure, spheroidal graphiteR FeC-GP2pearlitic microstructure, spheroidal graphiteE, T a Symbols see 4.1. b Covered electrode with core rod of cast iron. c Covered electrode with core rod of unalloyed steel. -,-,- ISO 1071:2003(E) 4 ISO 2003 All rights reserv
45、ed Table 2 Chemical composition of similar rod and of similar all-weld metal of covered electrode and tubular cored electrode Chemical composition % abc SymbolProduct form CSiMnPSFeNidCueRemark Sum of other elements FeC-1E, R3,0 to 3,62,0 to 3,50,80,50,1RemainderAl: 3,01,0 FeC-2E, T3,0 to 3,62,0 to
46、3,50,80,50,1RemainderAl: 3,01,0 FeC-3E, T 2,5 to 5,02,5 to 9,51,00,200,04Remainder1,0 FeC-4R3,2 to 3,52,7 to 3,00,60 to 0,750,50 to 0,750,10Remainder1,0 FeC-5R3,2 to 3,52,0 to 2,50,50 to 0,700,20 to 0,400,10Remainder1,2 to 1,6Mo: 0,25 to 0,451,0 FeC-GFE, T3,0 to 4,02,0 to 3,70,60,050,015Remainder1,5
47、 Mg: 0,02 to 0,10 Ce: 0,20 1,0 FeC-GP1R3,2 to 4,03,2 to 3,80,10 to 0,400,050,015Remainder0,50 Mg: 0,04 to 0,10 Ce: 0,20 1,0 FeC-GP2E, T2,5 to 3,51,5 to 3,01,00,050,015Remainder2,51,0 Mg: 0,02 to 0,10 Ce: 0,20 1,0 ZR, E, TAny other agreed composition a Single values are maximum percentages. b The res
48、ults shall be rounded to the same number of significant figures as in the specified value using the rules in accordance with annex B, Rule A of ISO 31-0:1992. c The weld metal, core metal or filler metal, as specified should be analysed for specific elements for which values are shown in this table. If the presence of other elements is indicated, in the course of this work, the amount of those elements shall be determined to ensure that their total does not exceed the limit specified for “Sum of other elements“ in the las