1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 898-1:2013Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes - Coarse thread and fi
2、ne pitch thread (ISO 898-1:2013) BS EN ISO 898-1:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 898-1:2013. It supersedes BS EN ISO 898-1:2009 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee FME/9, Fasten
3、ers.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 necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI S
4、tandards Limited 2013ISBN 978 0 580 76901 6 ICS 21.060.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2013.Amendments issued since publicationDate
5、 T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 898-1 January 2013 ICS 21.060.10 Supersedes EN ISO 898-1:2009English Version Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classes - Co
6、arse thread and fine pitch thread (ISO 898-1:2013) Caractristiques mcaniques des lments de fixation en acier au carbone et en acier alli - Partie 1: Vis, goujons et tiges filetes de classes de qualit spcifies - Filetages pas gros et filetages pas fin (ISO 898-1:2013) Mechanische Eigenschaften von Ve
7、rbindungselementen aus Kohlenstoffstahl und legiertem Stahl - Teil 1: Schrauben mit festgelegten Festigkeitsklassen - Regelgewinde und Feingewinde (ISO 898-1:2013) This European Standard was approved by CEN on 14 January 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
8、 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 CEN-CENELEC Management Centre or to any CEN member. Thi
9、s 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN memb
10、ers 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, Portug
11、al, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any
12、 means reserved worldwide for CEN national Members. Ref. No. EN ISO 898-1:2013: EBS EN ISO 898-1:2013EN ISO 898-1:2013 (E) 3 Foreword This document (EN ISO 898-1:2013) has been prepared by Technical Committee ISO/TC 2 “Fasteners“ incollaboration with Technical Committee CEN/TC 185 “Fasteners” the se
13、cretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by July 2013, and conflicting national standards shall be withdrawn at thelatest by July 2013. Attention is drawn to
14、the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 898-1:2009. According to the CEN-CENELEC Internal Regulations, the national s
15、tandards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
16、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 898-1:2013 has been approved by CEN as EN ISO 898-1:2013 without any modification. BS EN ISO 898-1:2013ISO 898-1:2013(E)
17、 ISO 2013 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references2 3 Terms and definitions .3 4 Symbols and abbreviated terms 4 5 Designation system for property classes.6 6 Materials .6 7 Mechanical and physical properties8 8 Applicability of test methods .12 8.1 General .1
18、2 8.2 Loadability of fasteners 12 8.3 Manufacturers test/inspection 13 8.4 Suppliers test/inspection.13 8.5 Purchasers test/inspection13 8.6 Feasible tests for groups of fasteners and machined test pieces .14 9 Test methods .21 9.1 Tensile test under wedge loading of finished bolts and screws (exclu
19、ding studs).21 9.2 Tensile test for finished bolts, screws and studs for determination of tensile strength, Rm.25 9.3 Tensile test for full-size bolts, screws and studs for determination of elongation after fracture, Af, and stress at 0,0048d non-proportional elongation, Rpf27 9.4 Tensile test for b
20、olts and screws with reduced loadability due to head design 31 9.5 Tensile test for fasteners with waisted shank32 9.6 Proof load test for finished bolts, screws and studs.33 9.7 Tensile test for machined test pieces .35 9.8 Head soundness test 38 9.9 Hardness test.39 9.10 Decarburization test 41 9.
21、11 Carburization test 44 9.12 Retempering test .46 9.13 Torsional test .46 9.14 Impact test for machined test pieces 47 9.15 Surface discontinuity inspection.48 10 Marking.48 10.1 General .48 10.2 Manufacturers identification mark49 10.3 Marking and identification of fasteners with full loadability.
22、49 10.4 Marking and designation of fasteners with reduced loadability 53 10.5 Marking of packages .53 Annex A (informative) Relationship between tensile strength and elongation after fracture.54 Annex B (informative) Influence of elevated temperatures on mechanical properties of fasteners55 Annex C
23、(informative) Elongation after fracture for full-size fasteners, Af.56 Bibliography57 BS EN ISO 898-1:2013ISO 898-1:2013(E) iv ISO 2013 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The
24、 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 be represented on that committee. International organizations, governmental and non-gove
25、rnmental, 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 Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. T
26、he 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 International Standard requires approval by at least 75 % of the member bodies casting a vot
27、e. 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 898-1 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 11, Fasteners w
28、ith metric external thread. This fifth edition cancels and replaces the fourth edition (ISO 898-1:2009), of which it constitutes a minor revision. ISO 898 consists of the following parts, under the general title Mechanical properties of fasteners made of carbon steel and alloy steel: Part 1: Bolts,
29、screws and studs with specified property classes Coarse thread and fine pitch thread Part 2: Nuts with specified property classes Coarse thread and fine pitch thread Part 5: Set screws and similar threaded fasteners with specified hardness classes Coarse thread and fine pitch thread Part 7: Torsiona
30、l test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm1)1)It is intended that, upon revision, the main element of the title of Part 7 will be aligned with the main element of the titles of Parts 1 to 5. BS EN ISO 898-1:2013INTERNATIONAL STANDARD ISO 898-1:2013(E) ISO 20
31、13 All rights reserved 1Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread 1 Scope This part of ISO 898 specifies mechanical and physical properties of bolts, screws and studs mad
32、e of carbon steel and alloy steel when tested at an ambient temperature range of 10 C to 35 C. Fasteners (the term used when bolts, screws and studs are considered all together) that conform to the requirements of this part of ISO 898 are evaluated at that ambient temperature range. They might not r
33、etain the specified mechanical and physical properties at elevated temperatures (see Annex B) and/or lower temperatures. NOTE 1 Fasteners conforming to the requirements of this part of ISO 898 are used in applications ranging from 50 C to +150 C. Users are advised to consult an experienced fastener
34、metallurgist for temperatures outside the range of 50 C to +150 C and up to a maximum temperature of +300 C when determining appropriate choices for a given application. NOTE 2 Information for the selection and application of steels for use at lower and elevated temperatures is given, for example, i
35、n EN 10269, ASTM F2281 and in ASTM A320/A320M. Certain bolts and screws might not fulfil the tensile or torsional requirements of this part of ISO 898 because the geometry of their heads reduces the shear area in the head compared to the stress area in the thread. These include bolts and screws havi
36、ng a low or countersunk head (see 8.2). This part of ISO 898 is applicable to bolts, screws and studs made of carbon steel or alloy steel, having triangular ISO metric screw thread in accordance with ISO 68-1, with coarse pitch thread M1,6 to M39, and fine pitch thread M81 to M393, with diameter/pit
37、ch combinations in accordance with ISO 261 and ISO 262, and having thread tolerances in accordance with ISO 965-1, ISO 965-2 and ISO 965-4. It is not applicable to set screws and similar threaded fasteners not under tensile stress (see ISO 898-5). It does not specify requirements for such properties
38、 as weldability, corrosion resistance, resistance to shear stress, BS EN ISO 898-1:2013ISO 898-1:2013(E) 2 ISO 2013 All rights reserved torque/clamp force performance (for test method, see ISO 16047), or fatigue resistance. 2 Normative references The following documents, in whole or in part, are nor
39、matively referenced in this document and are indispensable to its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 68-1, ISO general purpose screw threads Basic profile Par
40、t 1: Metric screw threads ISO 148-1, Metallic materials Charpy pendulum impact test Part 1: Test method ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions ISO 261, ISO general purpose metric screw threads General plan ISO 262, ISO general purpose metric screw thr
41、eads Selected sizes for screws, bolts and nuts ISO 273, Fasteners Clearance holes for bolts and screws ISO 724, ISO general-purpose metric screw threads Basic dimensions ISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel Part 2: Nuts with specified property classes Co
42、arse thread and fine pitch thread ISO 898-5, Mechanical properties of fasteners made of carbon steel and alloy steel Part 5: Set screws and similar threaded fasteners with specified hardness classes Coarse thread and fine pitch thread ISO 898-7, Mechanical properties of fasteners Part 7: Torsional t
43、est and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm1)ISO 965-1, ISO general-purpose metric screw threads Tolerances Part 1: Principles and basic data ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and
44、internal screw threads Medium quality ISO 965-4, ISO general purpose metric screw threads Tolerances Part 4: Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing ISO 4042, Fasteners Electroplated coa
45、tings ISO 6157-1, Fasteners Surface discontinuities Part 1: Bolts, screws and studs for general requirements ISO 6157-3, Fasteners Surface discontinuities Part 3: Bolts, screws and studs for special requirements ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method ISO 6507-1, Met
46、allic materials Vickers hardness test Part 1: Test method ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) ISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature ISO 7500-1, Metallic materials Verifi
47、cation of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system BS EN ISO 898-1:2013ISO 898-1:2013(E) ISO 2013 All rights reserved 3ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings ISO 10684:2004,
48、 Fasteners Hot dip galvanized coatings ISO 16426, Fasteners Quality assurance system 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 finished fastener fastener for which all manufacturing steps have been completed, with or without any surface
49、 coating and with full or reduced loadability, and which has not been machined into a test piece 3.2 machined test piece test piece machined from a fastener to evaluate material properties 3.3 full-size fastener finished fastener with a shank diameter of ds d or ds d, or screw threaded to the head, or fully threaded stud 3.4 fastener with reduced shank finished fastener with a shank diameter of ds d23.5 fastener with w
