1、BRITISH STANDARD 1407 : 1970 UDC 669.1422 NIETRIC UNITS SPECIFICATION FOR HIGH CARBON BRIGHT STEEL 1 / (SILVER STEEL) / onfirmed BRITISH STANDARDS INSTITUTION BSI BSU1407 70 W 1624669 0475742 396 = SPECIFICATION FOR .HIGH CARBON BRIGHT STEEL (SILVER STEEL) BS 1407 : 1970 BRITISH STANDARDS INSTITUTIO
2、N Incorporated by Royal Charter British Standards House, 2 Park St., Loiidon WlY 4AA Telegrams: Standards London W1 Telephone: 01-629 9000 BSI BSIL407 70 Lb24bb9 0475743 222 BS 1407 : 1970 THIS BRITISH STANDARD, having been approved by the Iron and Steel Industry Standards Committee. was published u
3、nder the authority of the Executive Board on 31st March, 1970. First published, September, 1947. First revision, February, 1959. Second revision, March, 1970. SBN: 580 05859 X The Institution desires to call attention to the fact that this British Standard does not purport to include all the necessa
4、ry provisions of a contract. In order to keep abreast of progress in the industries con- cerned, British Standards are subject to periodical review. Suggestions for improvements will be recorded and in due course brought to the notice OC the committees charged with the revision of the standards to w
5、hich they refer. A complete list of British Standards, numbering over 5000, fully indexed and with a note of the contents of each, will be found in the British Standards Yearbook, pria l. The BS Yearbook niay be consulted in many public libraries and similar institutions. This standard makes referen
6、ce to the following British Standards : BS 240. Method for Brinell hardness test. BS 4500. IS0 Limits and fits. British Standards are revised, wlieri riecessary, by the iwie either of amendment slips or of revised editions. It is iryortarit tliot idsers of British Stari that they are irr possession
7、of the latest arneiidnieiits or editioris. The following BSI references relate to the work on this standard: Committee: reference ISE167 Draft for comment 69/4187 2 BSI BS*L407 70 Lb2Ybb9 01.175744 Lb9 BS 1407 : 1970 CONTENTS Co-operating organizations Foreword SPECIFICATION 1. scope 2. Process of m
8、anufacture 3. Chemical composition 4. Finish 5. Condition of material on delivery 6. Tolerances 7. Lengths 8. Sizes APPENDIX A. Standard sizes Page 4 3 8 3 BSI BS*L407 70 3b24bb9 0475745 OT5 rn BS 1407 : 1970 CO-OPERATING ORGANIZATIONS The Iron and Steel Industry Standards Committee, under whose sup
9、ervision this British. Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: Board of Trade British Cast Iron Research Association British Constructional Steelwork Association *British Electrical and Allied Manufactu
10、rers Association British Ironfounders Association British Mechanical Engineering Confederation British Railways Board Council of Ironfoundry Associations Council of Iron Producers Crown Agents for Oversea Governments and Administrations Department of Employment and Productivity (H.M. Factory Inspect
11、orate) Engineering Equipment Users Association Federation of Civil Engineering Contractors Institute of British Foundrymen Institute of Iron and Steel Wire Manufacturers Institute of Marine Engineers Institution of Civil Engineers Institution of Mechanical Engineers (Automobile Division) Institution
12、 of Production Engineers Institution of Structural Engineers Joint Iron Council Lloyds Register of Shipping *Ministry of Defence (Army) Ministry of Defence (Navy) National Association of Drop Forgers and Stampers National Physical Laboratory (Ministry of Technology) Oil Companies Materials Associati
13、on Royal Institute of British Architects Shipbuilders and Repairers National Federation *Society of British Aerospace Companies Ltd. *Society of Motor Manufacturers and Traders Ltd. Stainless Steel Development Association Steel Castings Research and Trade Association Tin Research Institute The Gover
14、nment department and scientific and industrial 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 : British Bolt, Nut, Screw and Rivet Federation British Gear Manufac
15、turers Association British independent steel producers Machine Tool Trades Association Ministry of Technology (Materials Division) National Federation of Engineers Tool Manufacturers Silver Steel Association *British Steel Industry 4 BSI BS*LY07 70 Lb2Ybb7 0475746 T3L Element Min. % Carbon 0.95 Sili
16、con - Manganese 0.25 Chromium (optional) - Sulphur - Phosphorus - BS 1407 : 1970 Max. % 1 -25 0-4 0.45 0-5 0.045 0.045 BRITISH STANDARD SPECIFICATION FOR HIGH CARBON BRIGHT STEEL (SILVER STEEL) BSI BS*1407 70 1624669 0475747 978 m mm Up to and including 3 Over 3 up to and including 6 Over 6 up to an
17、d including 10 Over 10 up to and including 18 %IS 1407 : 1970 mm +o -0.060 +O -0.075 +O -0.090 $0 -0.110 4. FINISH 4.1 Round silver steel (of Rounds). The material shall have ground or polished surfaces, shall be commercially straight and free from seams or other surface defects. Ground material sha
18、ll be free from decarburization. 4.2 Square silver steel (or Squares). The material shall have a drawn surface, be commercially straight and free from seams. 5. CONDITION OF MATERIAL ON DELIVERY Unless otherwise specified on the enquiry and order, the material as delivered shall have a hardness of n
19、ot more than 285 HB when measured in accordance with BS 24*. The material shall be supplied suitably oiled or greased to resist rusting in transit. 6. TOLERANCES 6.1 Rounds. Tolerances on diameter shall be as follows: I Diameter range mm Up to and including 3 Over 3 up to and including 6 Over 6 up t
20、o and including 10 Over 10 up to and including 18 Over 18 up to and including 30 Over 30 up to and including 50 Tolerance mm +O -0.014 +O -0.018 +O -0.022 +o -0.m +o -0.033 +O -0.039 NOTE. The foregoing are iii accordance with the tolerance h8 in ISO/R286, IS0 system of limits and fits , and BS 4500
21、, IS0 limits and fits . 6.2 Squares. Tolerances on squares shaII be as follows: I Sie across fiats I Tolerance BSI BSXL407 70 W Lb24bb 0475748 804 BS 1407 : 1970 , 7. LENGTHS The material shall be supplied in lengths of 333 mm, 1 m and 2 m. Sizes over 13 mm diameter may be supplied in random lengths
22、. S. SIZES A list of standard sizes is given in Appendix A. 7 ES1 BSxL407 70 m Lb24bb9 0475749 740 W BS 1407: 1970 APPENDIX A STANDARD SIZES ROUNDS Diameter mm 2 .o 2 -5 3 .O 3 -5 4 +O 4.5 5 -0 5.5 6.0 6-5 7.0 7 -5 8.0 8.5 99 9.5 10 .o 10.5 11 .o 11.5 12 .o 12-5 13 .0 13.5 14 9 14.5 15-0 15.5 16 .0
23、16.5 mm 17.0 17.5 18.0 18.5 19-0 19.5 20.0 21 i) 22 .o 23.0 24 .O 25 .O 26.0 27-0 28.0 29.0 301) 31.0 32 *O 33.0 34 .o 35.0 36 .O 37-0 38 .O 39 .O 40.0 45.0 50.0 8 BSI BS*l1407 70 = Lb24669 0475750 462 BS 1407 : 1970 SQUARES 3 -0 4 .O 5-0 6.0 7 .O 8-0 9.0 10.0 149 16.0 18 Q 209 9 BSI BSsL407 70 1624
24、669 0475751 3T9 M BRITISH STANDARDS The following are available on application: YEARBOOK Including subject index and numerical list of British Standards LI. SECTIONAL LISTS. Gratis Acoustics (SL 10) Aerospace materials and components (SL 25) Automobile (SL 34) British Standard Handbooks (SL 27) Buil
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27、r conditioning (SL 42) Hospital equipment (SL 18) Illumination and lighting fittings (SL 14) Industrial instruments, etc. (SL 17) Iron and steel (SL 24) Laboratory apparatus (SL 23) Leather, plastics, rubber (SL 12) Local authority purchasing officers guide (SL 28) Machine tools (SL 20) Mechanical e
28、ngineering (SL 6) Nomenclature, symbols and abbreviations (SL 29) Non-ferrous metals (SL 19) Nuclear energy (SL 36) Packaging and containers (SL 15) Paints, varnishes, paint ingredients and colours for paints (SL 9) Personal safety equipment (SL 30) Petroleum industry (SL 38) Printing and stationery
29、, paper and board (SL 22) Road engineering (SL 32) Shipbuilding (SL 40) Textites and clothing (SL 33) Welding (SL 7) Applications should be addressed to: BRITISH STANDARDS INSTITUTION Sales Branch Telephone: 01-278 2161 Newton House, 101/113 Pentonville Rd., London, N.l BSI BS*:1407 70 1624669 04757
30、52 235 AMD 2157 Amendment Slip No. i, published 30 November I976 to BS 1407 : 1970 High carbon bright steel (silver steel) Revised text Appendix A. Standard sizes. In the table headed Kounds delete the firs1 three entries 0.5. 1 4 undl .S. Insert two new final entries 45.0 and 50 -0. In the table headed Squares delete the eiiiiies I I .O, 13.0. 1 SO, 17.0 and 1 )4.). 761 1-3.4k-B Gr O
