1、BRITISH STANDARDBS EN ISO 13918:2008Welding Studs and ceramic ferrules for arc stud weldingICS 21.060.10; 25.160.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g4
2、3g55g3g47g36g58BS EN ISO 13918:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2008 BSI 2008ISBN 978 0 580 55180 2National forewordThis British Standard is the UK implementation of EN ISO 13918:2008. It supersedes BS EN ISO 13918:
3、1998 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee WEE/-/1, Briefing committee for welding.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessar
4、y provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 13918May 2008ICS 21.060.10;
5、25.160.10 Supersedes EN ISO 13918:1998 English VersionWelding - Studs and ceramic ferrules for arc stud welding (ISO13918:2008)Soudage - Goujons et bagues cramiques pour le soudage larc des goujons (ISO 13918:2008)Schweien - Bolzen und Keramikringe fr dasLichtbogenbolzenschweien (ISO 13918:2008)This
6、 European Standard was approved by CEN on 16 January 2008.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 reference
7、s concerning such nationalstandards may be obtained on application to the CEN 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 it
8、s own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu
9、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN
10、All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 13918:2008: EForeword This document (EN ISO 13918:2008) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes“ in collaboration with Technical Committee CEN/T
11、C 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 November 2008, and conflicting national standards shall be withdrawn at the latest by Novem
12、ber 2008. 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 ISO 13918:1998. According to the CEN/CENELEC Int
13、ernal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, M
14、alta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 13918:2008 has been approved by CEN as a EN ISO 13918:2008 without any modification. BS EN ISO 13918:2008ii iiiContents Page Foreword. v Int
15、roduction . vi 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Symbols and abbreviated terms . 2 5 Requirements 3 5.1 Ordering information 3 5.2 Dangerous substances 3 5.3 Product requirements. 3 5.4 Durability . 5 6 Testing for conformity evaluation. 5 6.1 General. 5 6.2 Testing
16、 for dangerous substances . 5 6.3 Testing of dimensional requirements of the studs . 5 6.4 Testing of mechanical characteristics of studs 5 6.5 Weldability . 6 7 Evaluation of conformity 6 7.1 General. 6 7.2 Initial type testing . 6 7.3 Factory production control (FPC) . 7 8 Documentation of test re
17、sults . 9 9 Dimensions of studs. 10 9.1 General. 10 9.2 Threaded stud (PD). 10 9.3 Threaded stud with reduced shaft (RD) 12 9.4 Unthreaded stud (UD). 13 9.5 Stud with internal thread (ID). 14 9.6 Shear connector (SD) . 15 9.7 Threaded stud with flange (PS) . 16 9.8 Unthreaded stud (US). 18 9.9 Stud
18、with internal thread (IS). 19 9.10 Threaded stud (PT) . 20 9.11 Unthreaded stud (UT) . 21 9.12 Stud with internal thread (IT). 22 10 Dimensions of ceramic ferrules 23 10.1 General. 23 10.2 Ceramic ferrule for threaded stud (PF). 23 10.3 Ceramic ferrule for unthreaded stud and shear connector (UF) .
19、24 10.4 Ceramic ferrule for threaded stud with reduced shaft (RF) 25 11 Manufacture and finish. 25 11.1 Threaded studs (PD), unthreaded studs (UD), threaded studs with reduced shaft (RD) 25 11.2 Shear connectors (SD) . 25 12 Inspection 26 12.1 General. 26 12.2 Chemical analysis. 26 BS EN ISO 13918:2
20、008iv 12.3 Mechanical tests . 26 12.4 Sample size 26 13 Marking. 27 13.1 Studs 27 13.2 Ceramic ferrules 27 14 Designation 27 14.1 Studs 27 14.2 Ceramic ferrules 28 Annex A (informative) Mass of studs 29 Bibliography . 32 BS EN ISO 13918:2008vForeword ISO (the International Organization for Standardi
21、zation) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to b
22、e represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standa
23、rds 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 International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter
24、national 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 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 13918 w
25、as prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the field of metal welding. This second edition cancels and replaces the first edition (ISO 13918:1998), which has been technically revised. BS EN ISO 13918:2008vi Introduct
26、ion The range of types of studs specified in this International Standard represents customary applications. This International Standard can be used in all fields of the metal-working industry. BS EN ISO 13918:20081Welding Studs and ceramic ferrules for arc stud welding 1 Scope This International Sta
27、ndard specifies: requirements for studs and ceramic ferrules for arc stud welding; dimensions, materials, mechanical properties and, when required, conditions of evaluation of conformity. Table 1 shows types of studs and the symbols for studs and ceramic ferrules that are covered by this document. T
28、able 1 Types of studs and symbols for studs and ceramic ferrules Welding technique Type of studaSymbol for studs Symbol for ceramic ferrules threaded stud (pitch) PD PF threaded stud with reduced shaft RD RF unthreaded stud UD UF stud with internal thread ID UF Drawn arc stud welding with ceramic fe
29、rrule or shielding gas shear connector SD UF threaded stud with flange (pitch) PS unthreaded stud US Short-cycle drawn arc stud welding stud with internal thread IS threaded stud (pitch) PT unthreaded stud UT Stud welding with tip ignition stud with internal thread IT aFurther types of stud and cera
30、mic ferrules can be specified as required for special applications. 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 doc
31、ument (including any amendments) applies. ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs ISO 3506-1, Mechanical properties of corrosion-resistant stainless-steel fasteners Part 1: Bolts, screws and studs ISO 4042, Fasteners Electrop
32、lated coatings BS EN ISO 13918:20082 ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 4964, Steel Hardness conversions ISO 6892, Metallic materials Tensile testing at ambient temperature ISO 6947, Welds Working positions Definitions of angles o
33、f slope and rotation ISO 14555, Welding Arc stud welding of metallic materials ISO/TR 15608, Welding Guidelines for a metallic materials grouping system EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition and form of products EN 130
34、1-2, Aluminium and aluminium alloys Drawn wire Part 2: Mechanical properties EN 10088-1, Stainless steels Part 1: List of stainless steels EN 12166, Copper and copper alloys Wire for general purposes 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 14
35、555 and the following apply. 3.1 inspection lot arrangement of units of which a random sample is taken for testing and which requires the same chemical composition of the raw material, the same diameter of the finished product and the same manufacturing procedure during the stud production 3.2 manuf
36、acturing lot quantity of studs of a single designation including type of stud, size, property class and material, manufactured from bar, wire, rod or flat product from a single cast, processed through the same or similar steps at the same time or over a continuous time period through the same heat t
37、reatment and/or coating process, if any NOTE Same heat treatment or coating process means: for a continuous process, the same treatment cycle without any setting modification; for a discontinuous process, the same treatment cycle for identical consecutive loads (batches). The manufacturing lot can b
38、e split into a number of manufacturing batches for processing purposes and then reassembled into the same manufacturing lot. Adapted from ISO 15330:1999, definition 3.3 4 Symbols and abbreviated terms b length of the thread cddepth of the crack in the head d1nominal diameter d2diameter at the weld a
39、rea d3diameter of the weld collar BS EN ISO 13918:20083d4diameter of the tip d5head diameter of headed studs D6internal thread diameter D7nominal diameter of the ceramic ferrule d8grip diameter d9base diameter of the ceramic ferrule h1height of the flange h2height of the ceramic ferrule h3height of
40、the head on headed stud h4height of the weld collar h5height of the unthreaded part of stud types PS and PT l1overall length of the stud (excluding aluminium ball or welding tip) l2nominal length of the stud l3length of the welding tip y length of the unthreaded part face angle 5 Requirements 5.1 Or
41、dering information At the time of order the manufacturer shall obtain the following information: a) reference to this International Standard if the purchaser demands compliance; b) quantities to be delivered; c) complete product designation; d) other requirements as agreed with the purchaser (e.g. l
42、ow-temperature requirements). 5.2 Dangerous substances Materials used in products shall not release any dangerous substances in excess of the maximum levels permitted in the relevant regulations of the state of destination. 5.3 Product requirements 5.3.1 Dimensions and tolerances on dimensions, form
43、 and position Dimensions and tolerances on dimensions, form and position shall be in accordance with the requirements given in Clause 9. For coated threaded studs the tolerances shall apply before coating. BS EN ISO 13918:20084 5.3.2 Coating Unless otherwise specified, studs PS, US, IS, PT, UT, IT o
44、f property class 4.8 shall be supplied with electroplated copper coating (C1E). 5.3.3 Materials and mechanical characteristics 5.3.3.1 General The materials listed in Table 2 shall be used, under the provisions of 5.3.4. The mechanical characteristics of the studs shall comply with the specification
45、s in Table 2. 5.3.3.2 Shear strength Shear strength shall be checked by testing the minimum tensile strength of the studs. Table 2 Materials and mechanical characteristics of finished studs Symbol Material/ Material group/ Property class Standard Mechanical properties of the finished stud 4.8 ISO 89
46、8-1 See ISO 898-1 PD RD UD ID A2-50, A2-70, A4-50, A4-70, A5-50, A5-70 ISO 3506-1 See ISO 3506-1 SD1 RmW 450 N/mm2ReHW 350 N/mm2A5W 15 % SD2 Material group 1 with the limits: C u 0,2 %aCEV u 0,35aAl W 0,02 %a, bISO/TR 15608 Rm= 400 N/mm2to 550 N/mm2ReHW 235 N/mm2Rp0,2W 235 N/mm2A5W 20 % SD3 1.4301 1
47、.4303 EN 10088-1 Rm= 500 N/mm2to 780 N/mm2Rp0,2W 350 N/mm2A5W 25 % 4.8 ISO 898-1 See ISO 898-1 PS US IS A2-50 ISO 3506-1 See ISO 3506-1 4.8 ISO 898-1 See ISO 898-1 A2-50 ISO 3506-1 See ISO 3506-1 CuZn37 EN 12166 RmW 370 N/mm21050A EN 573-3 RmW 100 N/mm2PT UT IT 5754 EN 1301-2 RmW 230 N/mm2aValues fr
48、om the ladle analysis. bIf other elements for killing are used, they shall be reported in the inspection document. BS EN ISO 13918:200855.3.4 Weldability Only weldable materials shall be used for studs. Non-alloyed steel studs are weldable if the hardness increase is low. In general this is the case
49、 when the carbon content is u 0,20 %. Free-cutting steel studs are generally not weldable. Killed materials shall be used. Austenitic stainless steel studs are generally weldable. Free-cutting steel studs are generally not weldable. 5.4 Durability The durability of studs is dependent on their use and the environmental exposure to which they are subject. The mechanical durability of studs is assured for a reasonable economic workin
