1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Steel wire ropes RequirementsBS ISO 2408:2017 ISO 2017Steel wire ropes RequirementsCbles en acier ExigencesINTERNATIONALSTANDARDISO2408Fourth edition2017-06Reference numberISO 2408:2017(E)National forewordThis British S
2、tandard is the UK implementation of ISO 2408:2017. The UK participation in its preparation was entrusted to Technical Committee MHE/2, Wire ropes.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 nec
3、essary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 92022 6ICS 77.140.65Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard
4、was published under the authority of the Standards Policy and Strategy Committee on 30 June 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 2408:2017 ISO 2017Steel wire ropes RequirementsCbles en acier ExigencesINTERNATIONAL STANDARDISO2408Fourth edition20
5、17-06Reference numberISO 2408:2017(E)BS ISO 2408:2017ISO 2408:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by an
6、y means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401C
7、H-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 2408:2017ISO 2408:2017(E)Foreword vIntroduction vii1 Scope . 12 Normative references 13 Terms and definitions . 14 Requirements 24.1 Material . 24.1.1 Wire . 24.1.2 Core . 24.1.3 Lubricant 2
8、4.2 Rope manufacture 24.2.1 General 24.2.2 Wire joints . 34.2.3 Lubrication 34.2.4 Preformation and postformation. 34.2.5 Construction 34.2.6 Grade 34.2.7 Wire finish . 34.2.8 Direction and type of lay . 44.3 Designation and classification . 44.4 Dimensions . 44.4.1 Diameter . 44.4.2 Lay length . 54
9、.4.3 Rope length . 64.5 Breaking force 64.5.1 General 64.5.2 Ropes produced in series . 65 Verification of requirements and test methods . 75.1 Materials . 75.2 Rope manufacture 75.3 Test on rope for diameter 75.4 Test on rope for breaking force . 85.4.1 Method 1: Measured breaking force, Fm85.4.2 M
10、ethod 2: Calculated measured (post-spin) breaking force . 85.4.3 Method 3: Calculated measured (pre-spin) breaking force 95.4.4 Method 4: Measured aggregate breaking force, Fe.m.96 Information for use 96.1 Certificate 96.1.1 General 96.1.2 Test results . 106.2 Packaging and marking. 106.2.1 Packagin
11、g. 106.2.2 Marking . 10Annex A (normative) Dimensional and mechanical properties of round wires (before rope making) .12Annex B (normative) Sampling and acceptance criteria for type testing of ropes produced in series .15Annex C (normative) Calculation of minimum breaking force for ropes in the tabl
12、es of Annex D and Annex H17 ISO 2017 All rights reserved iiiContents PageBS ISO 2408:2017ISO 2408:2017(E)Annex D (normative) Tables of minimum breaking forces for more common rope classes, sizes and grades .20Annex E (informative) Tests on wires taken from the rope .43Annex F (informative) Compariso
13、n between metric and imperial rope sizes .45Annex G (informative) Rope grade approximations 47Annex H (informative) Large diameter wire ropes 48Bibliography .50iv ISO 2017 All rights reservedBS ISO 2408:2017ISO 2408:2017(E)ForewordISO (the International Organization for Standardization) is a worldwi
14、de 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 be represented on tha
15、t 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.The procedures used to develop this docum
16、ent and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directive
17、s, Part 2 (see www .iso .org/ directives).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. Details of any patent rights identified during the developm
18、ent of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature
19、 of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This docu
20、ment was prepared by Technical Committee ISO/TC 105, Steel wire ropes.This fourth edition cancels and replaces the third edition (ISO 2408:2004), which has been technically revised with the following main changes: “general purposes” and “minimum” have been deleted from the title; “oil and gas indust
21、ry and fishing” has been deleted in the scope; the definitions of “calculated aggregate minimum breaking force of core, F0” have been increased; in Table 1, Rope grade 2160 has been increased to 2 360 MPa; the sentence “All wires of the same nominal diameter in the same wire layer shall be of the sa
22、me tensile strength grade.” in 4.1.1 has been deleted; in 4.2.2, the sentence “Twisting for wires up to and including 0,4 mm, and brazing for wires over 0,4 mm,” has been deleted and has been replaced with “the minimum distance between wire joints within one strand shall be 20 d”; “type” has been us
23、ed to replace “duty” in 4.2.3, and the sentence “The purchaser should specify the rope duty or any particular lubrication requirements” has been deleted; “Zn-Al coated” has been increased in 4.2.7; note d) in 4.5.1 has been deleted; the “breaking force testing requirements without ISO quality system
24、” column in Table 4 has been deleted; the requirement of measuring instrument for diameter measurement in 5.3 has been increased; ISO 2017 All rights reserved vBS ISO 2408:2017ISO 2408:2017(E) these sentences in 5.4.1 have been deleted:“a) the selected test piece shall have its ends secured to ensur
25、e that the rope does not unravel;b) the minimum free test length excluding any rope terminations shall be 600 mm or 30 nominal rope diameter, whichever is the greater;c) after 80 % of the minimum breaking force has been applied, the force shall be increased at a rate of not more than 0,5 % of the mi
26、nimum breaking force per second”; the “measured aggregate breaking force, Fe.m” in 5.4.4 has been increased; in 6.1.1, g) maximum wire diameter and h) metallic cross-sectional area have been added; in 6.1.2 b) mass of coating, “(if applicable)” has been added; markings have been detailed in 6.2; the
27、 sentence “The value of wire exceeding the grades in the table should be agreed by the supplier and purchaser” has been added in Annex A; B.2 has been added in Annex B; in Annex C (previously Annex D), the metallic cross-section ratio, the weight ratio, and the calculating ratio for compacted strand
28、 wire rope columns have been added; in Annex D (previously Annex C), 6 19 M, 8 7, 18 19S, 18 19W, 36(M) 7 have been added in rope construction and tables for 4 19 class, 4 36 class and K4 35N class have been added; “rope grade equivalents” has been changed to “rope grade approximations” in Annex G,
29、and a note has been added; Annex H has been added; editorial revisions have been made.vi ISO 2017 All rights reservedBS ISO 2408:2017ISO 2408:2017(E)IntroductionThis document was developed in response to a worldwide demand for a specification giving requirements for steel wire ropes.As in previous e
30、ditions, this document specifies metric sizes and grades of rope for the more common classes of rope; see Annex F. A comparison of rope grades is provided in Annex G. ISO 2017 All rights reserved viiBS ISO 2408:2017BS ISO 2408:2017Steel wire ropes Requirements1 ScopeThis document specifies requireme
31、nts for the manufacture, testing, acceptance, packing, marking and issuing of a certificate of quality of wire ropes. It is applicable to round strand ropes and compacted strand ropes made from wires ropes that are uncoated (bright), zinc-coated or Zn-Al coated.It is not applicable to ropes for mini
32、ng purposes, aircraft control, aerial ropeways and funiculars, and lifts.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For unda
33、ted references, the latest edition of the referenced document (including any amendments) applies.ISO 2232:1990, Round drawn wire for general purpose non-alloy steel wire ropes and for large diameter steel wire ropes SpecificationsISO 3108, Steel wire ropes for general purposes Determination of actua
34、l breaking loadISO 4345, Steel wire ropes Fibre main cores SpecificationISO 4346, Steel wire ropes for general purposes Lubricants Basic requirementsISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperatureISO 7800, Metallic materials Wire Simple torsion testISO 17893
35、, Steel wire ropes Vocabulary, designation and classification3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 17893 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online
36、browsing platform: available at h t t p :/ www .iso .org/ obp IEC Electropedia: available at h t t p :/ www .electropedia .org/ 3.1calculated aggregate minimum breaking force of coreF0value of the aggregate minimum breaking force obtained by calculation from the cross-sectional area (based on nomina
37、l wire diameter) and tensile strength grade of each wire in the core, as given in the manufacturers rope designINTERNATIONAL STANDARD ISO 2408:2017(E) ISO 2017 All rights reserved 1BS ISO 2408:2017ISO 2408:2017(E)4 Requirements4.1 Material4.1.1 WireBefore rope making, wires shall conform to the diam
38、eter, torsion and, where applicable, coating requirements specified in Annex A.NOTE 1 Annex A is based on ISO 2232 but with extended wire sizes and wire tensile strength grades.NOTE 2 For a given wire size and tensile strength grade, the torsional properties of the wires in ISO 10425:2003, A.2 meet
39、or exceed the values given in Annex A.For those ropes where a rope grade is applicable, the tensile strength grades of the wires shall be subject to the limits given in Table 1.Table 1 Tensile strength grades of wires (excluding centre and filler wires) for given rope gradesRope grade Range of wire
40、tensile strength grades N/mm21570 1 370 to 1 7701770 1 570 to 1 9601960 1 770 to 2 1602160 1 960 to 2 360NOTE 3 The minimum breaking force values of those ropes of grades 1570, 1770, 1960 and 2160 as covered by Table D.1 to Table D.14 are calculated on the basis of rope grade and not individual wire
41、 tensile strength grades.The methods of test shall be in accordance with ISO 2232.4.1.2 CoreCores of single-layer stranded ropes shall normally be of steel or fibre, although other types such as composites (e.g. steel plus fibre or steel plus polymer) or solid polymer may also be supplied.The purcha
42、ser should specify any particular core type requirements.Fibre cores for single-layer stranded ropes shall conform to ISO 4345 and rope diameters 8 mm and above shall be doubly closed (i.e. from yarn into strand and from strand into rope).Natural fibre cores shall be treated with an impregnating com
43、pound to inhibit rotting and decay.Steel cores shall be either an independent wire rope (IWRC) or a wire strand (WSC).Steel cores of single-layer stranded ropes larger than 12 mm diameter shall be an independent wire rope (IWRC), unless specified otherwise.4.1.3 LubricantLubricants shall conform to
44、ISO 4346.4.2 Rope manufacture4.2.1 GeneralAll the wires in a strand shall have the same direction of lay.2 ISO 2017 All rights reservedBS ISO 2408:2017ISO 2408:2017(E)The core, except for compacted (swaged) ropes, shall be designed (steel) or selected (fibre) so that in a new rope under tension on t
45、he closing machine, there is clearance between the outer strands.The completed rope shall be evenly laid and free from loose wires, distorted strands and other irregularities.The new wire rope shall not have a three-dimensional wave.Rope ends that have no end fittings shall, when necessary, be secur
46、ed so as to maintain the integrity of the wire rope and prevent its unlaying.4.2.2 Wire jointsWires over 0,4 mm in diameter shall, where necessary, have their ends joined by welding.Wires up to and including 0,4 mm diameter shall, where necessary, be joined by brazing, welding or by ends being simpl
47、y inserted in the strands formation.The minimum distance between wire joints within one strand shall be 20 rope diameter (d).4.2.3 LubricationThe amount of lubrication and type of lubricant shall be appropriate to the rope type and its use.4.2.4 Preformation and postformationRopes shall be preformed
48、 and/or postformed unless specified otherwise by the purchaser.NOTE Large diameter wire rope, some parallel-closed and rotation-resistant ropes, can be non-preformed or be only partially preformed.4.2.5 ConstructionThe rope construction shall be either one of those covered in Annex D, Annex H or as
49、stated by the manufacturer.If the purchaser only specifies the rope classification, the manufacturer should state the rope construction clearly.The purchaser should specify the rope construction or classification.4.2.6 GradeThe rope grades for the more common classes of ropes shall be as given in Table D.1 to Table D.22.Other rope grades, including those as given in ISO 10425, may be supplied by agreement between the purchaser and the manufacturer, providing all
