BS 2453-1973 Specification for steel wire for spokes《轮辐用钢丝规范》.pdf

1、BRITISH STANDARD BS2453:1973 Incorporating Amendment No.1 Specification for Steel wire for spokes UDC 629.11.012.625:669.14-426BS2453:1973 This British Standard having beenapproved by the Iron andSteel Industry Standards Committee, was published underthe authority of the Executive Board on 30April19

2、73 BSI 11-1999 First published February1954 First revision April1973 The following BSI references relate to the work on this standard: Committee referenceISM/26 Draft for comment70/13868 ISBN 0 580 07744 6 Co-operating organizations The Iron and Steel Industry Standards Committee, under whose superv

3、ision this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: British Cast Iron Research Association Institution of Production Engineers British Constructional Steelwork Association Institution of Structur

4、al Engineers British Ironfounders Association Lloyds Register of Shipping British Mechanical Engineering Ministry of Defence Confederation Ministry of Defence, Army Department British Steel Industry* National Association of Drop Forgers and Council of Iron Producers Stampers Council of Ironfoundry A

5、ssociations National Physical Laboratory (Department of Department of Employment Trade and Industry) Department of Trade and Industry Oil Companies Materials Association (Marine Division) Process Plant Association Engineering Equipment Users Association Royal Institute of British Architects Federati

6、on of Civil Engineering Contractors Shipbuilders and Repairers National Greater London Council Association Institute of British Foundrymen Society of Motor Manufacturers and Traders Institute of Iron and Steel Wire Limited* Manufacturers* Stainless Steel Development Association Institute of Marine E

7、ngineers Tin Research Institute Institution of Mechanical Engineers (Automobile Division) The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Alloy and Stainless

8、Steel Conference Fencing Contractors Association British Bolt, Nut, Screw and Rivet Federation Institution of Quality Assurance British Wire Netting Association Spring Research Association Cycle and Motor Cycle Association Society of Chainlink Fencing Manufacturers Amendments issued since publicatio

9、n Amd. No. Date of issue Comments 6157 May1990 Indicated by a sideline in the marginBS2453:1973 BSI 11-1999 i Contents Page Co-operating organizations Inside front cover Foreword ii 1 Scope 1 2 Chemical composition 1 3 Manufacture 1 4 Selection of test pieces 1 5 Tensile strength 1 6 Wire diameters

10、and tolerances 1 7 Bend tests 1 8 Zinc coating 2 9 Retests 2 Appendix A Bend testing machine suitable for spoke wire1.80mm to3.00mm nominal diameter inclusive 3 Appendix B Bend testing machine suitable for spoke wire of over3.00mm nominal diameter 4 Publications referred to Inside back coverBS2453:1

11、973 ii BSI 11-1999 Foreword This British Standard, authorized by the Iron and Steel Industry Standards Committee, specifies the requirements for steel wire used in the manufacture of spokes. The standard is a metrication of the1954 edition and includes details of the metric nominal wire diameters wh

12、ich are normally available and which are compatible with the imperial dimensions at present given in BS811 “Cycle threads”. The standard will be reviewed when BS811 is metricated. NOTEAttention is drawn to the certification facilities offered by BSI; see the inside back cover of this standard. A Bri

13、tish Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a fro

14、nt cover, an inside front cover, pagesi andii, pages1 to4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS2453:1973 BSI 11-1999 1 1 Scope Th

15、is British Standard specifies bare and galvanized wire for spokes of1.80mm to6.30mm diameter inclusive. NOTEThe titles of the British Standards referred to in this standard are listed on the inside back cover. 2 Chemical composition 2.1 The wire shall be produced from steel within the following limi

16、ts on cast analysis. 2.2 Any check analysis on the finished wire shall show no carbon values less than0.32%. 3 Manufacture 3.1 Steel making. The wire shall be cold drawn from steel having the composition specified in Clause2 and made by any process except that the air, and mixed air oxygen, bottom b

17、lown basic convertor processes shall not be used. 3.2 Condition. The wire shall be supplied in the patented and drawn condition. In addition, it shall be zinc coated when specified by the purchaser in his order. The definition of patenting is given in BS6562-1. 3.3 Freedom from defects. The wire sha

18、ll be free from pipe and other harmful defects. 3.4 Coiling. The wire shall be so processed during manufacture that it lies flat in coils of even diameter and free from corkscrew set. 3.5 Mass and dimensions of coils. The mass and dimensions of coils shall be specified in the order. 4 Selection of t

19、est pieces Test pieces of sufficient length for the prescribed tests shall be cut from each end of each coil of wire as supplied by the manufacturer. 5 Tensile strength The tensile strength obtained from the test pieces, selected as specified in Clause4, and tested in accordance with the method desc

20、ribed in BS4545, shall be not less than1050N/mm 2and not more than1130N/mm 2 , except that, if so specified by the purchaser, larger wires for swaging shall have a tensile strength of not less than970N/mm 2and not more than1050N/mm 2 . In routine testing with fixed gear type tensile testing machines

21、, the strain rate shall be pre-set to give a rate of separation of the grips not greater than40% of the test length per minute. 6 Wire diameters and tolerances 6.1 The nominal wire diameters normally available are listed below. 6.2 The tolerance on the nominal diameter of the finished wire shall be+

22、0.05mm0.00mm. 7 Bend tests 7.1 Wire of1.80mm to3.00mm diameter inclusive. Each test piece, selected as specified in Clause4, shall be capable of being bent backwards and forwards not less than four times through an angle of180 over a radius equal to its own diameter without showing signs of fracture

23、. The first bend through90 shall not be counted. The rate of bending shall be approximately one180 bend per1.5seconds. A suitable machine for performing the above test is shown inAppendix A. 7.2 Wire of over3.00mm up to and including6.30mm diameter. Each test piece, selected as specified in Clause4,

24、 shall be capable of being bent through120 over a radius of0.4mm ( 0.02mm) without showing signs of fracture. A suitable machine for performing the above test is shown inAppendix B. Element % min. % max. Carbon Silicon Manganese Sulphur Phosphorus 0.35 0.05 0.60 0.45 0.35 1.00 0.050 0.050 mm mm 1.80

25、 4.50 2.00 4.75 2.30 4.87 2.58 5.15 2.90 5.45 3.25 6.00 3.65 6.15 4.00 6.30 4.37BS2453:1973 2 BSI 11-1999 8 Zinc coating When zinc coating is specified by the purchaser, the mass of zinc shall be between60g/m 2and150g/m 2of the wire surface. The method of testing the coating shall be as specified in

26、 BS443. The zinc coating shall be smooth, firm and adherent and, when examined without magnification, shall show no signs of cracking, flaking or peeling when the test piece is closely wrapped eight times round a mandrel of a diameter equal to the diameter of the wire. 9 Retests In the event of any

27、test piece failing to comply with the requirements of any of the specified tests, two additional test pieces shall be cut from each end of the coil from which the original test piece was taken. The manufacturer may discard part of the coil prior to removing the piece for retest. If, when tested in a

28、ccordance with the relevant section, any of the additional test pieces fails to meet the requirements of the test, the coil shall be deemed not to comply with the requirements of this standard.BS2453:1973 BSI 11-1999 3 Appendix A Bend testing machine suitable for spoke wire1.80mm to3.00mm nominal di

29、ameter inclusiveBS2453:1973 4 BSI 11-1999 Appendix B Bend testing machine suitable for spoke wire of over3.00mm nominal diameter C = D=(17.45C)mm See the table below for values of C and D for the wire diameters normally available Nominal wire dimension Dimension C D mm 3.25 3.65 4.00 4.37 4.50 4.75

30、4.87 5.15 5.45 6.00 6.15 6.30 mm 14.19 13.99 13.82 13.63 13.57 13.44 13.38 13.24 13.09 12.82 12.74 12.67 mm 3.26 3.46 3.64 3.82 3.89 4.01 4.07 4.21 4.36 4.64 4.71 4.79 15.88 Wire diameter0.13 + 2 - mm BS2453:1973 BSI 11-1999 Publications referred to This standard makes reference to the following Bri

31、tish Standards: BS443, Galvanized coatings on wire. BS4545, Methods for mechanical testing of steel wire. BS6562, Terms used in the iron and steel industry. BS6562-1, Glossary of heat treatment terms. BSI Certification Trade Mark The Kitemark The British Standards Institution is the owner of a regis

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